IDEX 10-K 2025-12-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

For the fiscal year ended December 31, 2025

Commission file number 1-10235

IDEX CORPORATION

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (847) 498-7070

Securities Registered Pursuant to Section 12(b) of the Act:

Securities Registered Pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes þ No ¨

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ¨ No þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes þ No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☑

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No þ

The aggregate market value, as of the last business day of the registrant’s most recently completed second fiscal quarter, of the common stock (based on the June 30, 2025 closing price of $175.57) held by non-affiliates of IDEX Corporation was $13,228,549,364.

The number of shares outstanding of IDEX Corporation’s common stock, par value $0.01 per share, as of February 13, 2026 was 74,347,824.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the proxy statement with respect to the IDEX Corporation 2026 annual meeting of stockholders (the “2026 Proxy Statement”) are incorporated by reference into Part III of this Form 10-K.

Cautionary Statement Under the Private Securities Litigation Reform Act

This annual report on Form 10-K, including the “Overview,” “Results of Operations,” “Liquidity and Capital Resources” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” contains “forward-looking” statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended. These statements may relate to, among other things, the Company’s business strategy, outlook and full year 2026 focus and the assumptions underlying these expectations, capital return strategy, plant and equipment capacity for future growth, planned production, anticipated future acquisition behavior, resource and capital deployment and focus on organic and inorganic growth, the Company’s ability to adapt to macroeconomic challenges and anticipated adaptability of resource deployment, anticipated impacts of tariffs and global trade policies and changes in law, including the One, Big, Beautiful Bill Act, the Company’s future market positioning, anticipated trends in end markets, including expectations regarding market sector contraction, recovery, stabilization or growth and underlying drivers of such expectations, expectations regarding future order volumes and order patterns, demand within end markets, availability and sufficiency of cash and financing alternatives, the impacts of any pending or threatened legal, regulatory and other proceedings involving the Company and its subsidiaries, anticipated benefits and restructuring charges, including severance charges, related to the Company’s organizational changes, the anticipated tax treatment of the Company’s recent acquisitions, the expected contingent consideration payable related to the Company’s recent acquisitions, the anticipated benefits and performance of the Company’s recent or future acquisitions, anticipated growth initiatives and expansions and the anticipated benefits of the Company’s productivity and cost containment efforts, and are indicated by words or phrases such as “anticipates,” “estimates,” “plans,” “guidance,” “expects,” “projects,” “forecasts,” “should,” “could,” “will,” “likely to be,” “management believes,” “the Company believes,” “the Company intends” and similar words or phrases. These statements are subject to inherent uncertainties and risks that could cause actual results to differ materially from those anticipated at the date of this report.

The risks and uncertainties include, but are not limited to, the following: levels of industrial activity and economic conditions in the U.S. and other countries around the world, including uncertainties in the financial markets; pricing pressures, including inflation and rising interest rates, and other competitive factors and levels of capital spending in certain industries; the impact of severe weather events, natural disasters and public health threats; economic and political consequences resulting from terrorist attacks, wars and global conflicts; the Company’s ability to make acquisitions and to integrate and operate acquired businesses on a profitable basis; cybersecurity incidents; the continued growth of artificial intelligence (“AI”) and any related changes to demand in AI-driven markets served by the Company’s customers; the relationship of the U.S. Dollar to other currencies and its impact on pricing and cost competitiveness; political and economic conditions in countries in which the Company operates; developments with respect to trade policy and existing, new or increased tariffs or other similar measures; changes to applicable laws and regulations, including tax laws; interest rates; capacity utilization and the effect this has on costs; labor markets; supply chain conditions; market conditions and material costs; risks related to environmental, social and corporate governance issues, including those related to climate change and sustainability; and developments with respect to contingencies, such as litigation and environmental matters, and the other risk factors discussed in Item 1A, “Risk Factors” of this annual report on Form 10-K. The forward-looking statements included here are only made as of the date of this report, and management undertakes no obligation to publicly update them to reflect subsequent events or circumstances, except as may be required by law. Investors are cautioned not to rely unduly on forward-looking statements when evaluating the information presented here.

The Company also routinely posts important information for investors on its website at www.idexcorp.com under “Investors.” The Company may use this website as a means of disclosing material, non-public information and for complying with its disclosure obligations under Regulation FD adopted by the United States Securities and Exchange Commission (the “SEC”). Accordingly, investors should monitor the Investor Relations portion of the Company’s website noted above, in addition to following the Company’s press releases, SEC filings, and public conference calls and webcasts. Our website and the information contained therein or connected thereto shall not be deemed to be incorporated into this annual report on Form 10-K.

Table of Contents

PART I

Overview

IDEX Corporation (“IDEX,” the “Company,” “we,” or “our”) is a global applied solutions provider serving niche markets with mission critical components for everyday life. Substantially all of the Company’s business activities are carried out through over 50 wholly-owned subsidiaries with shared values of Trust, Team and Excellence. IDEX’s diverse family of businesses is committed to making trusted solutions that improve lives and is innovative and inquisitive in its quest to solve customers’ most challenging applied technology problems. These businesses operate with a high degree of autonomy, yet are all united by employing The IDEX Difference, a philosophy of great teams who embrace the 8020 principle while remaining hyper-focused on serving customers. IDEX was incorporated in Delaware on September 24, 1987.

End Markets and Products

The following table summarizes the percentage of total IDEX sales generated by each end market served:

*Beginning in 2025, Life Sciences also includes analytical instruments, pharmaceutical and medical/dental end market sales.

The Company has three reportable segments: Health & Science Technologies (“HST”), Fluid & Metering Technologies (“FMT”) and Fire & Safety/Diversified Products (“FSDP”). The segments are structured around how to best serve customer needs, with each segment consisting of businesses that have product and end market similarities as well as common distribution methods and production processes. This structure enables management efficiency, aligns IDEX’s operations with its focus on organic growth, strategic acquisitions and capital allocation priorities and provides transparency about the Company’s performance to external stakeholders.

The table below illustrates the share of Net sales and Adjusted EBITDA contributed by each segment on the basis of total segments (not total Company) for the years ended December 31, 2025 and 2024.

(1) Segment Adjusted EBITDA excludes the impact of unallocated corporate costs of $92.2 million and $93.0 million for the years ended December 31, 2025 and 2024, respectively.

IDEX believes that each of its reporting units is a leader in its products and services. The Company also believes that its strong financial performance has been attributable to its ability to design and engineer specialized quality products coupled with its ability to successfully identify, acquire and integrate strategic acquisitions. The table below illustrates the three reportable segments and the reporting units within each segment.

HEALTH & SCIENCE TECHNOLOGIES SEGMENT

The HST segment designs, produces and distributes a wide range of precision fluidics, positive displacement pumps, powder and liquid processing technologies, drying systems, micro-precision components, pneumatic components and sealing solutions, high performance molded and extruded sealing components, custom mechanical and shaft seals, engineered hygienic mixers and valves, biocompatible medical devices and implantables, air compressors and blowers, optical components and coatings, ultra-precision diamond tools, laboratory and commercial equipment and precision photonic solutions, technical ceramics and hermetic sealing products and porous material structures and flow control solutions.

The following table summarizes the percentage of total HST sales generated by each end market served:

*Beginning in 2025, Life Sciences also includes analytical instruments, pharmaceutical and medical/dental end market sales.

The following discussion describes the reporting units included in the HST segment:

Scientific Fluidics & Optics. Scientific Fluidics & Optics is a global authority in life science fluidics, optics, microfluidics and photonics and the movement of liquids and gases in critical applications, offering a diverse set of technologies, expertise, capabilities and product solutions across numerous market segments. Scientific Fluidics & Optics is comprised of the following businesses:

• IDEX Health & Science (“IH&S”) consists of IH&S Life Science Fluidics, IH&S Life Science Optics and IH&S Microfluidics. The IH&S Life Science Fluidics technology and product portfolio consists of column hardware, degassers, fluidic connections, fluidic manifolds, pumps and pump components, sensors, refractive index detectors, valves and fluidics sub-systems. The IH&S Life Science Optics technology and product portfolio consists of illumination light engines, optical filters, optical subsystems, sensors, cameras and camera imaging objectives. IH&S Microfluidics includes thinXXS Microtechnology, a global leader in developing and producing microfluidic systems, components and consumables serving the point of care diagnostic and digital polymerase chain reaction markets. IH&S serves the life science optics, chromatography, mass spectrometry, in-vitro diagnostics/biotech fluidics and fluidic connections markets. IH&S maintains operations in Bristol, Connecticut; Carlsbad, California; Middleboro, Massachusetts; Oak Harbor, Washington; Rochester, New York; Rohnert Park, California; Zweibrücken, Germany and Saitama, Japan.

• IDEX Materials Science Solutions platform is formed from the precision processing businesses of IDEX Optical Technologies, Muon Group (Millux, LouwersHanique, Veco and Tecan) and STC Material Solutions. The IDEX

Optical Technologies businesses of Advanced Thin Films, CVI Laser Optics, CVI Infrared Optics, Iridian Spectral Technologies and Micro-LAM (acquired in July 2025) specialize in precision substrate forming, complex optical coatings and optical assemblies. Solutions include optical filters, polarization optics, beamsplitters, waveplates, objectives and mirrors for application in semiconductor metrology, satellite laser communications, data communications, high-power industrial and defense optical systems, earth observation and remote sensing. The precision components and ceramics businesses of Millux, LouwersHanique, Veco, Tecan and STC Material Solutions have expertise in ultra-precision forming of advanced materials, from ceramics and glass to metals and plastics. Applications primarily include thermal management, fluid and energy flow control, filtration, and precision motion applications within the semiconductor, aerospace, medical, food processing and industrial markets. The businesses maintain global operations in the United States (Albuquerque, New Mexico; Longmont, Colorado; Portage, Michigan; Keene, New Hampshire; St. Albans, Vermont and Santa Ana, California), Canada (Ottawa), England (Dorset, Stevenage and Whetstone), the Netherlands (Didam, Eerbeek, Hapert and Wijchen) and India (Pune).

• Mott Corporation specializes in the design, customization and manufacturing of sintered porous metal components and engineered solutions used in fluidic applications within the medical, energy, industrial technology, semiconductor, water and space and defense markets. The business maintains operations in Farmington, Connecticut, with additional operations in Plymouth, Michigan and Binasco, Italy.

Performance Pneumatic Technologies. Performance Pneumatic Technologies provides specialized, high-performing air-moving technologies across a wide array of industries. Performance Pneumatic Technologies is comprised of the following businesses:

*•*Gast is a leading manufacturer of air-moving products, with a core technology around fractional horsepower (under 1 hp) air compressors, vacuum pumps and air motors. Gast products are used in a variety of long-life applications requiring a quiet, clean source of moderate vacuum or pressure and primarily serve the medical equipment, environmental equipment, computers and electronics, printing machinery, paint mixing machinery, packaging machinery, graphic arts and industrial manufacturing markets. Gast maintains operations in Benton Harbor, Michigan and has a logistics and commercial center in Redditch, England.

*•*Airtech designs and manufactures a wide range of highly engineered pressure technology products, with a core technology around high performance blowers (2 hp and above) and pneumatic valves for a variety of end markets, including alternative energy, food processing, medical, packaging and transportation. Airtech maintains operations in Rutherford, New Jersey and has other manufacturing operations in Linthicum Heights, Maryland and Schweinfurt, Germany.

Sealing Solutions. Sealing Solutions focuses on providing special seals and related products and solutions in diversified markets. Sealing Solutions is comprised of the following businesses:

*•*Precision Polymer Engineering (“PPE”) is a provider of proprietary high performance seals and advanced sealing solutions for a diverse range of global industries and applications, including hazardous duty, analytical instrumentation, semiconductor, process technologies, oil and gas, pharmaceutical, electronics and food applications. PPE maintains operations in Blackburn, England and has an additional manufacturing facility in Brenham, Texas. PPE also entered into a joint venture with a third party to manufacture and sell high performance elastomer seals for the oil and gas industry to customers within the Kingdom of Saudi Arabia as well as export these high performance elastomer seals outside of the Kingdom of Saudi Arabia. The joint venture maintains operations in Dammam, Saudi Arabia.

*•*FTL Seals Technology specializes in the design and application of high integrity rotary seals, specialty bearings and other custom products for the mining, power generation and marine markets. FTL Seals Technology maintains operations in Leeds, England.

*•*SFC Koenig is a producer of highly engineered expanders and check valves for critical applications across the transportation, hydraulic, aviation and medical markets. SFC Koenig maintains operations in Dietikon, Switzerland and has additional facilities in North Haven, Connecticut; Illerrieden, Germany and Suzhou, China.

*•*The Roplan businesses are global manufacturers of custom mechanical and shaft seals for a variety of end markets including food and beverage, marine, chemical, wastewater and water treatment. Roplan maintains operations in Sweden and also has operations in Ningbo, China; Berkshire, England and Madison, Wisconsin.

Material Processing Technologies. Material Processing Technologies provides process equipment and global support service solutions that meet customer specific requirements with a focus in the pharmaceutical, food, battery and chemical markets. Material Processing Technologies is comprised of the following businesses:

*•*IDEX MPT, Inc., which includes Quadro, Fitzpatrick, Microfluidics, and Matcon, maintains operations in Waterloo, Canada; Middleborough, Massachusetts; Evesham, England; Ahmedabad, India and Shanghai, China.

◦Quadro is a leading provider of powder processing solutions for the pharmaceutical, food, personal care and chemical markets. Quadro’s core capabilities include fine milling, emulsification and special handling of liquid and solid particulates for laboratories, through the pilot phase to full scale up with production scale processing.

◦Fitzpatrick is a global leader in the design and manufacture of process technologies for the pharmaceutical and chemical sectors. Fitzpatrick designs and manufactures customized size reduction and roll compaction systems to support their customers’ product development and manufacturing processes.

◦Microfluidics is a global leader in the design and manufacture of laboratory and production equipment used in the production of micro and nano scale materials for the pharmaceutical, biologics, personal care and chemical markets. Microfluidics is the exclusive producer of the Microfluidizer family of high shear fluid processors for uniform nano-emulsion formation, lipid nanoparticle creation, robust cell disruption and particle size reduction.

◦Matcon is a global leader in creating flexible material processing solutions for high value powders used in the manufacture of foods, pharmaceuticals, batteries, plastics and fine chemicals. Matcon’s innovative products consist of the original cone valve powder discharge system and filling, mixing and packaging systems, all of which support its customers’ automation and process requirements. These products are critical to its customers’ need to maintain clean, reliable and repeatable formulations of prepackaged foods and pharmaceuticals while helping them achieve lean and agile manufacturing.

FLUID & METERING TECHNOLOGIES SEGMENT

The FMT segment designs, produces and distributes positive displacement pumps, valves, small volume provers, flow meters, injectors and other fluid-handling pump modules and systems and provides flow monitoring and other services.

The following table summarizes the percentage of total FMT sales generated by each end market served:

The following discussion describes the reporting units included in the FMT segment:

Pumps. Pumps is a leading manufacturer of positive displacement pumps including rotary internal gear, external gear, vane and rotary lobe pumps, custom-engineered original equipment manufacturer pumps, strainers, gear reducers and engineered pump systems. Pumps primarily uses independent distributors to market and sell its products. Pumps is comprised of the following businesses:

• Viking Pump is a global leader in pumping solutions, with products including internal gear, external gear, vane, lobe and circumferential piston pumps, as well as parts, kits and accessories designed to support customers worldwide. With a focus on industrial applications like chemicals, polyurethane foam and asphalt; energy applications like oil transfer and glycol dehydration; and hygienic applications like biopharma, food and beverage, Viking Pump delivers proven liquid transfer pumping solutions for a wide variety of thin to viscous applications. Viking Pump maintains operations in Cedar Falls, Iowa, with locations in Windsor, Canada; Shannon, Ireland and Eastbourne, England.

• Warren Rupp manufactures air and electrically-operated double diaphragm pump products (which includes Sandpiper, Versamatic and Cognito products) used for abrasive and semisolid materials as well as for applications where product degradation is a concern. Warren Rupp products primarily serve the chemical, paint, food processing, electronics, construction, utilities, oil and gas, mining and industrial maintenance markets. Warren Rupp maintains primary operations in Mansfield, Ohio.

• ABEL designs and manufactures highly engineered reciprocating positive displacement pumps used for mine dewatering, back filling, transfer of mine tailings, municipal sledge and wastewater applications in a variety of end markets including mining, power, water and wastewater as well as other general industries. ABEL maintains operations in Büchen, Germany and Mansfield, Ohio and has facilities in Madrid, Spain and Mumbai, India.

Water. Water is a leading provider of metering technology, flow monitoring products and underground surveillance services for wastewater markets, as well as alloy and non-metallic gear pumps and peristaltic pumps. Water is comprised of the following businesses:

• ADS’ products and services provide comprehensive integrated solutions that enable industry, municipalities and government agencies to analyze and measure the capacity, quality and integrity of wastewater collection systems, including the maintenance and construction of such systems. ADS maintains operations in Huntsville, Alabama and various other locations in the United States, Canada and Australia.

• iPEK, Envirosight and WinCan combined are the leading providers of integrated solutions for managing the complete lifecycle of water infrastructure assets and process workflows. Their products and solutions include sewer crawlers, inspection and monitoring systems and software applications that allow teams to identify, anticipate and correct water system issues, automate and simplify inspection processes, improve infrastructure asset management and support distributed teams and cloud-based collaboration. MyTana and Pipeline Renewal Technologies design and build products used to clean and repair infrastructure in the sewer and drain industry. iPEK maintains operations in Hirschegg, Austria and Sulzberg, Germany. Envirosight and Pipeline Renewal Technologies maintain operations in Randolph, New Jersey and Callery, Pennsylvania. WinCan has development centers in Murten, Switzerland and Krakow, Poland. MyTana maintains operations in St. Paul, Minnesota. All entities have various sales and service outlets across the United States and Europe.

• Trebor is a leader in high-purity fluid handling products, including air-operated diaphragm pumps and deionized water-heating systems. Trebor products are used in the manufacturing of semiconductors, disk drives and flat panel displays. Trebor maintains operations in West Jordan, Utah.

• Pulsafeeder products are used to introduce precise amounts of fluids into processes to manage water quality and chemical composition. Pulsafeeder produces hydraulic and mechanical diaphragm pumps, rotary pumps, peristaltic pumps and controllers, which serve the industrial and municipal water and wastewater treatment, oil and gas, power generation, chemical and hydrocarbon processing and swimming pools markets. Pulsafeeder maintains operations in Rochester, New York and Punta Gorda, Florida.

Energy. Energy is a leading supplier of flow meters, small volume provers, electronic registration and control products, rotary vane and turbine pumps, reciprocating piston compressors and terminal automation control systems. Energy is comprised of the following businesses:

• Advanced Flow Solutions (“AFS”) consists of the Company’s Corken, Liquid Controls and SAMPI businesses. Corken products consist of positive displacement rotary vane pumps, single and multistage regenerative turbine pumps and small horsepower reciprocating piston compressors in the oil, gas and industrial markets. Products for Liquid Controls and SAMPI consist of positive displacement flow meters as well as electronic registration and control products, including mobile and stationary metering installations for wholesale and retail distribution of petroleum and liquefied petroleum gas, aviation refueling and industrial metering and dispensing of refined liquids and gases. AFS maintains operations in Oklahoma City, Oklahoma and Altopascio, Italy.

• Toptech supplies terminal automation hardware and software to control and manage inventories as well as transactional data and invoicing to customers in the oil, gas and refined-fuels markets. Toptech maintains operations in Longwood, Florida and Zwijndrecht, Belgium.

• Flow Management Devices (“Flow MD”) engineers and manufactures small volume provers that ensure custody transfer accuracy in the oil and gas market. Flow MD maintains operations in Phoenix, Arizona.

Agriculture. Agriculture is a leading supplier of pumps, valves, controllers, fittings and systems used in agricultural and industrial applications. Agriculture consists of the following businesses:

• Banjo is a provider of special purpose, severe-duty pumps, valves, fittings and systems used in liquid handling. Its products are used in agricultural and industrial applications. Banjo maintains operations in Crawfordsville, Indiana and has distribution facilities in Didam, the Netherlands and Valinhos, Brazil.

• KZValve is a leading manufacturer of electric valves and controllers used primarily in agricultural applications. KZValve maintains operations in Greenwood, Nebraska.

Valves. Valves is a leader in the design, manufacture and sale of specialty valve products for use in the chemical, petro-chemical, energy and sanitary markets as well as a leading producer of fluoroplastic lined corrosion-resistant magnetic drive and mechanical seal pumps, shut-off, control and safety valves for corrosive, hazardous, contaminated, pure and high-purity fluids. Valves is comprised of the following businesses:

• Richter and Aegis produce superior solutions for demanding and complex pump and valve applications in the process industry as well as specialty chemical processing valves for use in the chemical, petro-chemical, pharmaceutical, energy and battery industries. Richter and Aegis maintain operations in Kempen, Germany; Suzhou, China; Vadodara, India and Geismar, Louisiana.

FIRE & SAFETY/DIVERSIFIED PRODUCTS SEGMENT

The FSDP segment designs, produces and distributes firefighting pumps, valves and controls, rescue tools, lifting bags and other components and systems, engineered stainless steel banding and clamping devices, and precision equipment for dispensing, metering and mixing colorants and paints.

The following table summarizes the percentage of total FSDP sales generated by each end market served:

The following discussion describes the reporting units included in the FSDP segment:

Fire & Safety. Fire businesses produce truck-mounted and portable fire pumps, stainless steel and brass valves, monitors, nozzles, foam and compressed air foam systems, pump modules and pump kits, electronic controls and information systems, conventional and networked electrical systems and mechanical components for the fire and specialty vehicle markets. Safety businesses produce hydraulic, battery, gas and electric-operated rescue equipment, hydraulic re-railing equipment, hydraulic tools for industrial applications, recycling cutters, pneumatic lifting and sealing bags for vehicle and aircraft rescue, environmental protection and disaster control and jumping cushions for building rescue for the rescue market. Fire & Safety’s customers are original equipment manufacturers as well as public and private fire and rescue organizations. Fire & Safety maintains operations in Ocala, Florida (Class 1 and Hale products); Warwick, England (Godiva products); Wooster and Columbus, Ohio (Akron Brass and Weldon products); Ballendorf, Germany (AWG Fittings products); Shelby, North Carolina (Hurst Jaws of Life® products); Tianjin, China (Dinglee products); Erlangen, Germany (Lukas products) and Zülpich, Germany (Vetter products).

Dispensing. Dispensing businesses produce precision equipment for dispensing, metering and mixing colorants and paints used in a variety of retail and commercial businesses around the world. Dispensing is a global supplier of such equipment focused on the architectural paints segment used in retail and commercial stores, hardware stores, home centers and paint and specialized stores as well as in some industrial settings. Dispensing maintains operations in Sassenheim, the Netherlands; Wheeling, Illinois and Sandani, India as well as multiple sales offices around the world.

BAND-IT. BAND-IT is a leading producer of high-quality stainless steel banding, buckles and clamping systems. The BAND-IT brand is highly recognized worldwide. BAND-IT products are used for securing exhaust system heat and sound shields, airbags, industrial hose fittings, traffic signs and signals, electrical cable shielding, identification and bundling and in numerous other industrial and commercial applications. BAND-IT products primarily serve the automotive, aerospace, energy, utility, municipal, cable management and general industrial markets. BAND-IT maintains operations in Denver, Colorado, with additional operations in Staveley, England and Suzhou, China.

INFORMATION APPLICABLE TO THE COMPANY’S BUSINESS IN GENERAL AND ITS SEGMENTS

Competitors

The Company’s businesses participate in highly competitive markets. The Company encounters a wide variety of competitors that vary by product, market and geographic area. Each of the Company’s segments has multiple competitors, as no single competitor offers all of the same products or serves all of the same markets as IDEX. The Company’s competitors are both U.S. and foreign companies and range in size. IDEX believes that the principal points of competition are product quality, design and engineering capabilities, product development, conformity to customer specifications, quality of post-sale support, timeliness of delivery and effectiveness of the Company’s distribution channels.

Customers

In 2025, the Company did not have any customers that accounted for more than 3% of net sales. Since the Company serves a wide variety of markets, customer concentrations are not significant.

International

The Company’s products and services are available worldwide, with manufacturing, sales, distribution, service and/or administrative facilities located in more than 20 countries. The businesses located outside the U.S. are primarily based in the United Kingdom, Germany, the Netherlands, Canada, Italy, China and India. The Company’s geographic diversity allows it to draw on the skills of a global workforce, provides greater stability to its operations, allows the Company to drive economies of scale, provides revenue streams that may help offset economic trends that are specific to individual economies and offers the Company an opportunity to access new markets for products.

The following table illustrates sales to customers within and outside the U.S. as a percentage of total sales for total IDEX as well as by segment and by reporting unit for the year ended December 31, 2025:

Shared Services

The Company has production facilities in Suzhou, China, Vadodara, India and Ahmedabad, India that support multiple business units. IDEX also has personnel in China, India, Dubai, Mexico, Latin America and Singapore that provide sales, marketing, product design, engineering and sourcing support to its business units in those regions, as well as personnel in various locations in South America, Southeast Asia, the Middle East, Korea and Japan to support sales and marketing efforts in those regions.

Raw Materials

The Company uses a wide variety of raw materials, which are generally purchased from a large number of independent sources around the world. The Company believes it has an adequate supply of raw materials necessary to meet demand. The Company is exposed to fluctuations in commodity pricing and inflation, including the impact of tariffs, and attempts to control these impacts through increased prices to customers and various other programs with its suppliers.

Suppliers

The Company manufactures many of the parts and components used in its products. Substantially all materials, parts and components purchased by the Company are available from a large number of independent sources around the world. The Company believes it has a sufficient number of suppliers necessary to meet demand but continues to actively evaluate its current suppliers and identify alternative sources to manage supply chain constraints, if needed.

Inventory and Backlog

The Company is primarily a short cycle business and backlog is not generally considered a significant factor as relatively short delivery periods and rapid inventory turnover are characteristic of most of the Company’s products. Even still, the Company regularly and systematically adjusts production schedules and quantities based on the flow of incoming orders. While backlog was elevated in recent years due to global supply chain constraints, which extended lead times, shifted customer order patterns and resulted in increased inventory to support production, customer destocking efforts beginning in 2023 have resulted in orders stabilizing with backlog and lead times returning to more normalized levels in 2025. The Company remains focused on delivering products and services to customers and continues to actively manage inventory levels. Further, the Company has not historically experienced significant order cancellations and does not expect significant order cancellations in the future.

Government Regulations

Our compliance with federal, state and local laws and regulations, including those related to environmental, international trade, labor and employment, human rights, tax, anti-bribery and competition matters, did not have a material effect upon our capital expenditures, earnings or competitive position during the fiscal year ended December 31, 2025.

Employees

At December 31, 2025, the Company had approximately 8,700 employees. Approximately 4% of its employees are covered by various collective bargaining agreements in the U.S. which will expire at various times between now and January 2029. There are four collective bargaining agreements in the U.S. that will expire in 2026, with a new agreement already ratified for one of these agreements. Management believes that the Company has a positive relationship with its employees. The Company historically has been able to renegotiate its collective bargaining agreements satisfactorily, with its last work stoppage occurring in March 1993.

Human Capital Management

The Company attributes its success to the valuable contributions of its talented workforce and is committed to fostering a work environment where employees can thrive and grow. Investments in attracting, retaining and developing talent enable the Company to accomplish its strategic goals and deliver innovative customer solutions. The Company’s corporate Human Capital strategy is overseen by its Vice President, Talent and Culture. Annually, the Vice President, Talent and Culture presents a talent review to the Company’s Board of Directors focused on senior leader team development, the human capital strategy action plan and succession planning for senior management. This process is intended to help ensure that the Company’s Board of Directors remains informed and aligned on the Company’s human capital management strategies for business continuity and long-term performance.

The Company’s workforce advancement strategy is centered around investments in three pillars: enhancing skills across the workforce, leadership development aligned with the Company’s leadership methodology and fostering a strong and inclusive culture. The Company’s approach to performance management, talent development, talent management and employee engagement is designed to support long-term value creation by providing employees with opportunities to grow and contribute both individually and as part of high-performing teams. The Company prioritizes hiring employees who embrace its team-oriented culture and places emphasis on developing and promoting internal talent, including filling many leadership positions from within its workforce.

Employee engagement is a critical element of fostering a strong and inclusive culture where employees can thrive and have the opportunity to do their best work. Each year, the Company conducts an employee engagement survey and partners with employees to implement improvements based on the results. Additionally, key initiatives like the annual Global Leadership Conference for senior leaders are designed to strengthen leadership capabilities, reinforce learning and development, and support skill and career growth.

In 2025, the Company continued to execute on the strategic roadmap tied to its human capital strategy, including: (1) implementation of local business unit inclusion plans; (2) delivery of quarterly inclusive leadership training and a two-day enterprise-wide inclusion summit to promote leadership skill building for all employees; (3) expansion of the Company’s employee resource groups (“ERGs”); and (4) participation in talent networks. All offerings, including participation in ERGs, are open to all employees, regardless of their specific background, identity or experiences.

Additional information regarding the Company’s human capital practices is available on the Company’s website, under the Sustainability link at https://www.idexcorp.com/about-idex/idex-sustainability/. Information on the Company’s website is not incorporated into this Form 10-K.

Employee Pay and Benefits

Attracting and retaining talent is critical to the success of the Company’s business. The Company offers competitive pay and benefits for employees in the markets in which it operates. Many employees are eligible for performance-based compensation, including short-term performance incentive opportunities. The Company also provides equity-based, long-term incentives to its eligible senior leaders.

The Company’s U.S. employees are eligible to participate in a 401(k) retirement plan. The Company’s U.S. employees can also purchase the Company’s common stock through payroll deductions.

Further, since 2018, the Company has conducted pay equity analyses for U.S. employees to assess whether employees’ actual pay is substantially similar to predicted pay based on relevant factors such as role and level. Where appropriate, the Company has provided base pay adjustments for employees who were identified as outliers relative to their predicted pay.

Workplace Health & Safety

The Company is committed to providing a workplace that is safe for all of our employees, contractors, business partners and visitors. The commitment to Environmental, Health, and Safety (“EH&S”) begins at the corporate and executive level. The program is overseen by the Senior Director, Health & Safety and the Chief Sustainability Officer, both of whom are part of the Legal Department. Each of the Company’s businesses employ local EH&S specialists. These individuals and local safety committees, in conjunction with the corporate team, form the basis of the global EH&S program. The Company’s corporate EH&S policies are a key part of the global EH&S program. They apply to all of the Company’s businesses and each business is expected to comply with policies and all EH&S laws and regulations. In addition to the corporate policies, each business develops and implements its own health and safety policies tailored to the local business.

The Company also encourages employees enrolled in the U.S. Healthcare Benefit Plan to participate in the third-party operated Wellness Program which provides access to annual biometric screenings and health evaluations. The Company offers “wellness credits” that can be earned by employees as well as spouses and partners who take advantage of these early detection services offered or engage in healthy challenges and other activities each year. In addition, a number of the business units organize complementary wellness programs, including walking clubs, health fairs and “lunch and learns” with nutritionists for their employees.

Worker Rights and Protection

The Company believes that a respectful workplace is free from unlawful discrimination and harassment, and this involves more than just compliance with the law. The Company strives to create a work environment that is free of inappropriate and unprofessional behavior and consistent with the Company’s values – a place where everyone is invited to do their best every day and feel free to report any concerns. The Company has policies, procedures and regular training in place, including, but not limited to a global Code of Business Conduct & Ethics, to protect its workforce and prevent workplace harassment and discrimination. The Company also maintains a global hotline where employees are encouraged (and can choose to remain anonymous) to report any concerns or issues.

Information about Our Executive Officers

Set forth below are the names of the executive officers of the Company, their ages, years of service, the positions held by them and their business experience.

*Mr. Gillen joined IDEX as Senior Vice President and Chief Financial Officer in January 2026.

Mr. Ashleman has served as President and Chief Executive Officer since December 2020. Prior to that, Mr. Ashleman served as Chief Operating Officer from July 2015 to December 2020. He served as Senior Vice President and Group Executive of the Company’s Global Dispensing, FSDP, and HST and Optics business segments from early 2014 through July 2015 and as Vice President and Group Executive of the Company’s FSDP segment from 2011 through early 2014. Mr. Ashleman joined IDEX in 2008 as the President of Gast Manufacturing.

Mr. Gillen has served as Senior Vice President and Chief Financial Officer since January 2026. Prior to joining IDEX, Mr. Gillen served as Senior Vice President and Chief Financial Officer at AAR CORP., a provider of aviation services to the

aerospace and defense industries, from January 2019 to December 2025. Prior to his time at AAR CORP., Mr. Gillen served as Vice President and Treasurer at USG Corporation, a building materials manufacturing company, after serving in roles of increasing responsibility earlier in his career in investment banking at Goldman Sachs.

Ms. Anderson has served as Senior Vice President, General Counsel and Corporate Secretary since February 2022, and as Chief Administrative Officer since December 2025. Prior to that, Ms. Anderson served as Vice President, Associate General Counsel and Assistant Secretary from December 2017 through February 2022 after joining IDEX as Assistant General Counsel in October 2016. Prior to joining IDEX, Ms. Anderson served in various roles of increasing responsibility at SunCoke Energy, Inc., most recently as Senior Counsel and Deputy Chief Compliance Officer.

Ms. Tereso has served as Group Executive, HST since September 2024. Prior to that, Ms. Tereso served as Group President IDEX Health & Science from September 2023 to September 2024, after serving as President IDEX Health & Science from September 2021 to September 2023. Prior to joining IDEX in 2021, Ms. Tereso served as Vice President & General Manager EFD Division for Nordson Corporation, a precision technology company.

Mr. Simmons has served as Group Executive, FMT, FSDP since February 2026. Prior to that, Mr. Simmons served as Group Executive FSDP from September 2024 through February 2026. He served as Group President IDEX Fire & Safety and Dispensing from September 2023 to September 2024, as Group President IDEX Fire & Safety and BAND-IT from March 2023 to September 2023, and as President of IDEX Fire & Safety from January 2021 to March 2023.

Public Filings

Copies of the Company’s annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports are made available free of charge at www.idexcorp.com as soon as reasonably practicable after being filed electronically with the SEC. The Company’s reports are also available free of charge on the SEC’s website, www.sec.gov. Information on the Company’s website is not incorporated into this Form 10-K.

For an enterprise as diverse and complex as the Company, a wide range of factors present risks to the Company and could materially and adversely affect future developments and performance. In addition to the factors affecting specific business operations identified in connection with the description of the Company’s operations and the financial results of its operations elsewhere in this report, the most material of these factors are included below. Current global economic events and conditions may amplify many of these risks. These risks are not the only risks that may affect the Company. Additional risks that the Company is not aware of or does not believe are material at the time of this filing may also become important factors that adversely affect the Company’s business.

Risks Related to the Company’s Operations

The Company’s Inability to Continue to Develop New Products Could Limit Sales Growth.

The Company’s ability to continue to grow organically is tied in large part to its ability to continue to develop new products. A failure to continue to develop and deliver new, innovative and competitive products to the market could limit sales growth and negatively impact the Company and its financial condition, results of operations and cash flow.

The Company’s Growth Strategy Includes Acquisitions and Divestitures, and the Company May Not be Able to Make Acquisitions of Suitable Candidates, Integrate Acquisitions Successfully, or Successfully Execute Divestitures.

The Company’s historical growth has included, and the Company’s future growth is likely to continue to include, acquisitions. The Company intends to continue to seek acquisition opportunities both to expand into new markets and to enhance its position in existing markets throughout the world. The Company may not be able to successfully identify suitable candidates, negotiate appropriate acquisition terms, obtain financing needed to consummate those acquisitions, complete proposed acquisitions or successfully integrate acquired businesses into its existing operations. In addition, any acquisition, once successfully integrated, may not perform as planned, be accretive to earnings, or otherwise prove beneficial to the Company.

Acquisitions involve numerous risks, including the assumption of unexpected, undisclosed, uninsured or unindemnified liabilities including exposure to litigation, governmental investigations, regulatory exposure or other claims that may be pending or inherited at the time of the acquisition or that may be filed, expanded or commenced thereafter; difficulties in the assimilation of the operations, technologies, services and products of the acquired companies and the diversion of management’s attention from other business concerns. In addition, prior acquisitions have resulted in, and future acquisitions could result in, the incurrence of substantial additional indebtedness and other expenses.

The Company may also seek to divest portions of its business that are not deemed to fit with its strategic plan. Divestitures involve additional risks and uncertainties, such as the ability to sell such businesses on satisfactory terms and within the anticipated time frame, or at all. Any failure to realize the expected benefits of any divestiture transaction could negatively impact the Company and its financial condition, results of operations and cash flow. In addition, divestitures of businesses involve a number of risks, including significant costs and expenses, the loss of customer relationships, decrease in revenues and earnings associated with the divested business and the diversion of management’s attention from other business concerns. Furthermore, divestitures may also involve continued financial involvement in the divested business, such as through guarantees, indemnities or other financial obligations which could negatively impact the Company and its financial condition, results of operations and cash flow.

The Markets Served by the Company are Highly Competitive and this Competition Could Reduce Sales and Profit Margins.

Most of the Company’s products are sold in competitive markets. Maintaining and improving a competitive position will require continued investment in manufacturing, engineering, quality standards, marketing, technology, customer service and support and distribution networks. The Company may not be successful in maintaining its competitive position. The Company’s competitors may develop products that are superior, may develop methods of more efficiently and effectively providing products and services or may adapt quicker to new technologies or evolving customer requirements. Additionally, the Company’s competitors may adopt new technologies and technological advancements, such as using artificial intelligence (“AI”) and machine learning to pursue new products and approaches more quickly, successfully and effectively than the Company. The Company may not be able to compete successfully with existing competitors or with new competitors. Pricing pressures may require the Company to adjust the prices of products to stay competitive. Failure to continue competing successfully could reduce sales, profit margins and overall financial performance.

The Company is Dependent on the Availability of Raw Materials, Parts and Components Used in Its Products and Changes in Supply of, or Price for, Raw Materials, Parts and Components May Materially Adversely Affect the Company.

While the Company manufactures certain parts and components used in its products, the Company also requires substantial amounts of raw materials and purchases certain parts and components from suppliers. The availability of and prices for raw materials, parts and components may be subject to curtailment or change due to, among other things, suppliers’ allocations to other purchasers, interruptions in production by suppliers, including due to geopolitical or civil unrest, unfavorable economic or industry conditions, increased or new tariffs and other trade barriers, labor disruptions, supply chain disruptions, catastrophic weather events and natural disasters, including any that may be caused or exacerbated by global climate change, public health concerns, changes in exchange rates and prevailing price levels. Any change in the supply of, or price for, raw materials or parts and components could materially affect the Company and its financial condition, results of operations and cash flow.

The Company’s Business Operations May Be Materially Adversely Affected by Information Systems Interruptions or Intrusion, Including those Arising From Cybersecurity Attacks or Incidents or Violations of Laws Regulating Privacy and Data Security.

The Company depends on various internal and third-party information technologies to administer, store, process and transmit electronic information (including sensitive or controlled data such as confidential business information and personal data relating to employees, customers and other business partners) and to support a variety of critical business activities. Our business has an increasing reliance on IT systems and a growing digital footprint as a result of changing technologies, increasing connected devices and digital offerings, and an increase in remote and hybrid workforce populations. Additionally, some of our products contain computer hardware and software and offer the ability to connect to computer networks. Our customers, including government customers, are also requiring cybersecurity protections and mandating cybersecurity standards for our businesses with more frequency. If the Company’s systems, technologies, products or services (including those we acquire through business acquisitions), or the systems, technologies, products or services of the Company’s customers or third-party hosting services (including third-party data centers and cloud platforms upon which we rely), are damaged or cease to function properly, or if the Company or third-party hosting service systems are subject to deliberate cybersecurity attacks, such as those involving unauthorized access or malicious software, or unintentional cybersecurity incidents, such as those involving systems misconfigurations, misuse or human error and/or other intrusions, the Company, its operating results and financial condition could be materially adversely impacted. These impacts could include production downtimes, operational delays or other detrimental impacts on operations or the ability to provide products and services to customers; the compromise, destruction, corruption or theft of confidential or otherwise protected information, data or intellectual property; security breaches; other manipulation or improper use of the Company’s systems or networks; financial losses from fraudulent transactions; financial losses from remedial actions; loss of business or potential liability; adverse media coverage; legal claims or legal proceedings including regulatory investigations, actions, penalties or fines, including those arising from the violation of any applicable data privacy laws; and/or damage to the Company’s reputation. While we have experienced, and expect to continue to experience, these types of threats and incidents, based on our analysis at this time, we have not experienced a cybersecurity threat or incident that we believe has or is reasonably likely to materially affect the Company.

As a global organization, we are also subject to data privacy and security laws, regulations and customer-imposed controls in numerous jurisdictions as a result of having access to and processing confidential, personal and/or sensitive data in the course of our business. We are required to comply with increasingly complex laws and regulations enacted to protect business and personal data regarding privacy, data protection and data security in the U.S. and other jurisdictions, including the European Union’s General Data Protection Regulation (“GDPR”) and the California Consumer Privacy Act (“CCPA”) as revised and expanded under the California Privacy Rights Act (“CPRA”), as well as new laws governing digital technologies and cybersecurity and increasingly robust contractual requirements on privacy and security. Litigation, governmental investigations and enforcement actions can be costly and interrupt the regular operations of our business, and data breaches or violations of laws regarding privacy, data protection and data security can result in civil and criminal, monetary and non-monetary penalties and damages to our reputation, any of which may adversely affect our business and financial statements. The interpretation and enforcement of existing and new laws and regulations regarding privacy, data protection and data security are continuously evolving and there is significant uncertainty with respect to how compliance with these laws and regulations may develop and the costs and complexity of future compliance. As cybersecurity threats continue to evolve and as cybersecurity and data protection laws and regulations continue to develop globally, we expect to expend additional resources to continue to develop our compliance programs, strengthen our information security, data protection, disaster recovery and business continuity measures, and investigate and remediate vulnerabilities.

There has been a rise in the number of cyberattacks targeting confidential business information generally and in the manufacturing industry specifically by both state-sponsored and criminal organizations. These may include such things as denial of service attacks, introduction of ransomware or other malicious software programs, and other disruptive problems. In

addition, there has been a rise in the number of cyberattacks that depend on human error or manipulation, including phishing attacks or schemes that use social engineering to gain access to systems or perpetuate wire transfer or other frauds. Moreover, the rapid evolution and increased adoption of AI technologies may intensify our cybersecurity risks.

The Company’s cybersecurity defenses may be insufficient to fully mitigate cyber risks and losses related to cybersecurity events, any of which may result in a material adverse effect on the Company and its financial condition or results of operations. Moreover, until we have migrated businesses we acquire onto our IT systems or ensured compliance with our information technology and cybersecurity standards, we have in the past and may in the future face additional risks because of the continued use of predecessor IT systems, procedures and cybersecurity risk mitigation measures. Given the unpredictability, nature and scope of cybersecurity attacks and incidents, it is possible that potential vulnerabilities could go undetected for an extended period, and it could take considerable time for the Company to obtain full and reliable information as to the extent, amount and type of information and/or systems compromised. Any imposition of liability, particularly liability that is not covered by insurance or is in excess of our insurance coverage, could materially adversely harm our operating results and financial condition.

Uncertainties with Respect to the Development, Deployment, and Use of Artificial Intelligence in Our Business and Products May Result in Harm to Our Business and Reputation.

We are in the initial stages of our phased approach in reviewing AI solutions and capabilities and incorporating AI into our business activities and product and service offerings. As with many innovations, AI presents risks and challenges that could adversely impact our business. The development, adoption, and use of AI technologies are still in their early stages and ineffective or inadequate AI development or deployment practices could result in unintended consequences. For example, AI algorithms may be flawed or may be based on datasets that are biased or insufficient. In addition, any disruption or failure in the AI functionality we have incorporated or may in the future incorporate into our business activities, products or services could adversely impact our business or result in delays or errors in our offerings. The legal and regulatory landscape surrounding AI technologies is rapidly evolving and uncertain, including in the areas of intellectual property, cybersecurity and privacy and data protection. Compliance with new or changing laws, regulations or industry standards relating to AI may impose significant costs and may limit our ability to develop, deploy or use AI technologies. Failure to appropriately respond to this evolving landscape may result in legal liability, regulatory action, or brand and reputational harm.

Uncertainty Related to Environmental Regulation, Industry Standards, or Other Risks Associated with a Potential Global Transition to a Lower-Carbon Economy, as well as Physical Risks of Climate Change, Could Adversely Impact the Company’s Results of Operations and Financial Position.

Increased public awareness and concern regarding environmental risks, including global climate change and the potential global transition to a lower-carbon economy, may result in more international, regional, federal and/or state requirements or industry standards to reduce or mitigate global warming and other environmental risks. New climate change laws and regulations could require the Company or its suppliers to change their respective manufacturing processes or obtain substitute materials that may cost more or be less available for manufacturing operations. Various jurisdictions in which the Company does business have implemented, or in the future could implement or amend, restrictions on emissions of carbon dioxide or other greenhouse gases, taxation of or caps on the use of carbon-based energy, limitations or restrictions on water use, limitations or restrictions on the production of single-use plastics, regulations on energy management and waste management and other rules and regulations to address climate change and other environmental risks, which may increase the Company’s expenses and adversely affect its operating results. Similarly, to the extent any of the foregoing adversely affects the Company’s customers and suppliers, it may also adversely affect the Company’s financial results.

We also are or may become subject to increasing sustainability-related reporting requirements. For example, the State of California has recently enacted its own legislation requiring extensive climate-related disclosures for companies deemed to be doing business in California, and other states are considering similar laws. We are also subject to the European Union’s Corporate Sustainability Reporting Directive. Complying with such laws and regulations, which may continue to evolve, may impose substantial additional costs and require additional resources, including for third-party attestation to enable the capture, analysis and audit of appropriate data. Any actual or alleged failure to comply with laws and regulations around disclosures could result in fines, penalties and civil liabilities and damages to our reputation.

In addition to changes in regulations or industry standards, a failure by the Company to innovate and adapt products to new markets, changing customer preferences for higher-efficiency products, or increasing scrutiny related to sustainability activities and greenhouse gas emissions could limit sales growth and negatively impact the Company and its financial condition, results of operations and cash flow. At the same time, certain governmental representatives and other stakeholders have increasingly expressed or pursued opposing views, legislation and investment expectations around sustainability initiatives, including the

enactment or proposal of “anti-ESG” legislation or policies. If our sustainability reporting and practices do not meet the expectations and standards of our stockholders, customers and other stakeholders, our reputation and business activities may be negatively impacted and our appeal to certain investors may be reduced.

The physical risks of climate change are highly uncertain and differ in the geographic regions in which the Company and, in particular, its suppliers and customers operate. These physical risks, including wildfires, rising sea levels, floods and other extreme weather events or natural disasters, may impact the availability and cost of materials, sources and supply of energy, product demand and manufacturing and could increase insurance and other operating costs. Any future increased worldwide regulatory activity relating to climate change could expand the nature, scope and complexity of matters that the Company is required to control, assess and report. If environmental laws or regulations or industry standards are either changed or adopted and impose significant operational restrictions and compliance requirements upon the Company, its suppliers, its customers or its products, or the Company’s operations are disrupted due to physical impacts of climate change on the Company, its customers or its suppliers, the Company’s business, results of operations and financial condition could be adversely impacted.

Business Disruptions Due to Catastrophic Weather Events, Natural Disasters and Public Health Threats Could Adversely Affect the Company.

The Company faces various risks related to the occurrence of catastrophic weather events or significant natural disasters, including earthquakes, wildfires, droughts, fires, power-outages or other catastrophic events, in areas in which we have manufacturing facilities, from which we obtain products or in which our customers operate and conduct business. Severe weather conditions or natural disasters, including any that may be caused or exacerbated by global climate change, may cause physical damage to our properties, closure of one or more of our manufacturing or distribution facilities, lack of an adequate work force in a market, temporary disruption in the supply of inventory, disruption in the transport of products and utilities, delays in the delivery of products to our customers or decreased demand for our products from customers who may be affected by such weather conditions or natural disasters.

Additionally, public health threats may negatively impact the global economy by causing changes in consumer behavior, market downturns, restrictions on business and individual activities and increased volatility. Any widespread public health threats could have a significant impact on the Company’s supply chain, such as the Company experienced during the global outbreak of the COVID-19 pandemic.

To the extent that any of the foregoing adversely affect the Company and its financial results, they may also have the effect of heightening many of the other risks described in this Item 1A, “Risk Factors” of this annual report, such as those relating to international operations, the Company’s ability to develop new products, the Company’s ability to execute on its growth strategy of acquisitions, the Company’s dependency on raw materials, parts and components, the effects on movements in foreign currency exchange rates on the Company, the effects on the Company that result from declines in commodity prices and the Company’s reliance on labor availability to operate and grow the business.

Risks Related to Economic and Political Conditions

A Slowdown in the U.S. or International Economy Could Materially Adversely Affect the Sales and Profitability of the Company’s Businesses.

In 2025, 51% of the Company’s sales were derived from customers within the U.S. and 49% were derived from customers outside of the U.S. The Company’s largest end markets include industrial, life sciences, energy, water, fire suppression, semiconductor, automotive and aviation, chemical, paint dispensing and food and beverage. A slowdown in the U.S. or global economy and, in particular, any of these specific end markets could materially reduce the Company’s sales and profitability.

In addition, the increasing use and development of AI has increased demand for AI-related projects, including data center power solutions and semiconductor applications. The growth and development of this rapidly-evolving industry is difficult to predict. Changes in demand can affect the timing and amounts of customer investments in our products, which could materially affect the Company and its financial condition and results of operations.

Changes to Geopolitical and Economic Conditions in the U.S. and Foreign Countries in Which the Company Operates Could Adversely Affect the Company.

The Company expects international operations and export sales to continue to be significant for the foreseeable future. The Company’s sales from international operations and sales from export are both subject in varying degrees to risks inherent in doing business outside the U.S. These risks include the following:

• possibility of unfavorable circumstances arising from host country laws or regulations and the risks related to required compliance with local laws;

• risks of economic instability, including due to inflation;

• currency exchange rate fluctuations and restrictions on currency repatriation;

• potential negative consequences from changes to taxation policies;

• disruption of operations from labor and political disturbances;

• withdrawal from or renegotiation of international trade agreements and other restrictions on the trade between the United States and other countries;

• the imposition of and changes in the United States’ and other governments’ trade regulations, trade wars, increased or new tariffs and other trade barriers, and variability and unpredictability in trade relations, including as a result of geopolitical developments (such as escalating tensions in the Middle East) and relations between the United States and China and the United States and Russia and any changes arising as a result of global leadership changes; and

• geopolitical events, including natural disasters, catastrophic weather events, climate change, public health conditions, including epidemics, pandemics and other outbreaks (such as the global outbreak of the COVID-19 pandemic), political instability or other geopolitical events, including civil or political unrest, terrorism, insurrection, global conflicts or war.

Any of these events could have a materially adverse impact on the Company and its operations.

Significant Movements in Foreign Currency Exchange Rates May Harm the Company’s Financial Results.

The Company is exposed to fluctuations in foreign currency exchange rates arising from its global business operations. Approximately 34% of net sales in 2025 were recorded by subsidiaries with functional currencies other than the U.S. Dollar. Results of these subsidiaries are translated into U.S. Dollars for reporting purposes and the strengthening of the U.S. Dollar could result in unfavorable translation effects. In addition, certain of the Company’s businesses transact in a currency other than the business’s functional currency, and movements in the transaction currency as related to the functional currency could also result in unfavorable transactional exchange rate effects. Any significant change in the value of the currencies of the countries in which the Company does business against the U.S. Dollar could affect the Company’s ability to sell products competitively and control its cost structure, which could have a material adverse effect on results of operations. For additional detail related to this risk, see Part II, Item 7A, “Quantitative and Qualitative Disclosures About Market Risk.”

Fluctuations in Interest Rates Could Adversely Affect the Company’s Results of Operations and Financial Position.

The Company’s profitability may be adversely affected during any periods of unexpected or rapid increases in interest rates. The Company maintains a Credit Agreement with a revolving credit facility (the “Revolving Facility”) in an aggregate principal amount of $800 million, which bears interest at either an alternate base rate or adjusted Term SOFR (or appropriate alternative currency reference rates) plus, in each case, an applicable margin based on the lower of the Company’s senior, unsecured, long-term debt rating or the Company’s applicable leverage ratio. A significant increase in Term SOFR or the other rates the Company has agreed to use as an alternative to Term SOFR (should Term SOFR become unavailable) under the Credit Agreement, as amended, would significantly increase the Company’s cost of borrowings. Further, any changes in regulatory standards or industry practices, such as the discontinuation of the use of Term SOFR and/or the transition to alternative benchmark rates may result in the usage of higher interest rates under the Credit Agreement or Revolving Facility, and the Company’s current or future indebtedness may be adversely affected. The Company is also exposed to risks if the U.S. Federal Reserve raises its benchmark interest rate, which may reduce the availability of and increase the cost of obtaining new debt and refinancing existing indebtedness. For additional detail related to this risk, see Part II, Item 7A, “Quantitative and Qualitative Disclosures About Market Risk.”

A Significant or Sustained Decline in Commodity Prices, Including Oil, Could Negatively Impact the Levels of Expenditures by Certain of the Company’s Customers.

Demand for the Company’s products depends, in part, on the level of new and planned expenditures by certain of its customers. The level of expenditures by the Company’s customers is dependent on, among other factors, general economic conditions, availability of credit, economic conditions within their respective industries and expectations of future market behavior. Volatility in commodity prices, including oil, can negatively affect the level of these activities and can result in postponement of capital spending decisions or the delay or cancellation of existing orders. The ability of the Company’s customers to finance capital investment and maintenance may also be affected by the conditions in their industries. Reduced demand for the Company’s products could result in the delay or cancellation of existing orders or lead to excess manufacturing capacity, which unfavorably impacts the absorption of fixed manufacturing costs. This reduced demand could have a material adverse effect on the Company and its financial condition and results of operations.

Risks Related to Legal, Accounting and Regulatory Matters

An Unfavorable Outcome of Any Pending Contingencies or Litigation Could Adversely Affect the Company.

The Company and its subsidiaries are currently involved in pending and threatened legal, regulatory and other proceedings incidental to the operations of their businesses. These proceedings may pertain to matters such as product liability or contract disputes, and may also involve governmental inquiries, inspections, audits or investigations relating to issues such as tax matters, intellectual property, environmental, health and safety issues, governmental regulations, employment and other matters. Where it is reasonably possible to do so, the Company accrues estimates of the probable costs for the resolution of these matters. These estimates are developed in consultation with outside counsel and are based upon an analysis of potential results and the availability of insurance coverage, assuming a combination of litigation and settlement strategies. It is possible, however, that future operating results for any particular quarter or annual period could be materially affected by changes in assumptions, the continued availability of insurance coverage or the effectiveness of the Company’s strategies related to these proceedings. For additional detail related to this risk, see Item 3, “Legal Proceedings” and Note 10, “Commitments and Contingencies” in Part II, Item 8, “Financial Statements and Supplementary Data.”

Failure to Adequately Protect the Company’s Intellectual Property and the Risk of Disputes Involving Intellectual Property Infringement Could Adversely Impact the Company’s Competitive Position, Results of Operations, and Financial Condition.

The Company owns patents, trademarks, licenses and other forms of intellectual property related to its products and continuously invests in research and development that may result in technological innovations and general intellectual property rights. The Company employs various measures to develop, maintain and protect its intellectual property rights. If these measures are not effective, or if the Company’s intellectual property is otherwise infringed, challenged, invalidated or circumvented, the Company may face adverse impacts to its results of operations and/or financial condition. Further, if intellectual property is infringed, challenged, invalidated or circumvented, this could reduce barriers to entry into the Company’s existing lines of business and may result in a loss of market share and adversely impact the Company’s competitive position. Additionally, the Company has registered intellectual property in multiple countries, and the Company’s ability to protect and enforce its intellectual property rights may be limited in foreign countries due to differences in intellectual property protections or proprietary rights laws. If the Company’s intellectual property is infringed, challenged, invalidated or circumvented due to these lesser protections, the Company may face adverse impacts to its results of operations, financial condition and/or competitive position.

Litigation may be necessary to enforce the Company’s intellectual property rights or to defend against infringement claims by third parties. Any litigation or claims brought by the Company could result in costs and diversion of resources, which could adversely affect the Company’s results of operations and/or financial condition. Any intellectual property litigation or claims brought against the Company may lead to litigation expenses, diversion of resources, losses or licensing expenses or the cessation of selling certain products, any of which could adversely affect the Company’s results of operations and/or financial condition.

The Company’s Intangible Assets, Including Goodwill, are a Significant Portion of Total Assets and a Write-off of Intangible Assets or Goodwill Would Adversely Impact the Company’s Operating Results and Significantly Reduce the Company’s Net Worth.

The Company’s total assets includes substantial intangible assets, primarily goodwill and identifiable intangible assets, which primarily result from acquisitions. At December 31, 2025, goodwill and intangible assets totaled $3,414.5 million and

$1,247.4 million, respectively. Annually, or when certain events occur that require a more current valuation, the Company assesses whether there has been an impairment in the value of goodwill and identifiable intangible assets. If future operating performance at one or more of the Company’s reporting units were to fall significantly below forecasted levels, the Company could be required to reflect, under current applicable accounting rules, a non-cash charge to operating income for an impairment. Any determination requiring the write-off of a significant portion of goodwill or identifiable intangible assets would adversely impact the Company’s results of operations and net worth. See Note 6, “Goodwill and Intangible Assets” in Part II, Item 8, “Financial Statements and Supplementary Data” for further discussion on goodwill and intangible assets.

The Company May Face Adverse Effects Resulting from Improper Conduct by Our Employees, Agents or Business Partners.

While we strive to maintain high standards, the Company cannot guarantee that our internal controls and compliance systems will always protect us from reckless or criminal acts committed by employees, agents or business partners of ours (or businesses that we acquire or partner with) that would violate laws in the U.S. or foreign countries in which the Company operates, including laws governing payment to government officials, bribery, fraud, conflicts of interest, competition, employment practices and workplace behavior, export and import compliance, economic and trade sanctions, money laundering and data privacy.

In particular, recent years have seen a substantial increase in anti-bribery law enforcement activity with more frequent investigations and enforcement proceedings by both the Department of Justice and the SEC, increased enforcement activity by non-U.S. regulators and increases in criminal and civil proceedings brought against companies and individuals. The Company’s policies mandate compliance with all anti-bribery laws, including the U.S. Foreign Corrupt Practices Act, the U.K. Bribery Act and similar anti-bribery laws in other jurisdictions which generally prohibit companies and their intermediaries from making improper payments for the purpose of obtaining or retaining business. However, the Company operates in certain countries that are recognized as having governmental and commercial corruption. Violations of any of these laws may result in criminal or civil sanctions or penalties, both monetary and non-monetary, increased costs of compliance and/or damage to our reputation, any of which could have a material adverse effect on the Company and its financial condition and results of operations.

General Risk Factors

A Failure to Retain Executive Management and Key Personnel or Recruit Adequate Successors May Adversely Affect the Company’s Operations and Implementation of Strategy.

The Company’s future success depends to a significant degree on the skills, experience and efforts of its executive management and other key personnel and their ability to provide the Company with uninterrupted leadership and direction. The loss of the services of any of the executive officers or other key personnel or a failure to provide adequate succession plans for these individuals could have an adverse impact on the Company’s operations and implementation of its strategic plan. The availability of highly qualified talent is limited and the competition for talent is robust.

Challenges with Respect to Labor Availability Could Negatively Impact the Company’s Ability to Operate or Grow the Business.

The Company’s success depends in part on the ability of its businesses to proactively attract, motivate and retain a qualified and highly skilled workforce in an intensely competitive labor market. A failure to attract, motivate and retain highly skilled personnel could adversely affect the Company’s operating results or its ability to operate or grow the business. Additionally, any labor stoppages or labor disruptions, including due to geopolitical unrest, unfavorable economic or industry conditions, catastrophic weather events, natural disasters or public health threats could adversely affect the Company’s operating results or its ability to operate or grow the business.

None.

Risk Management and Strategy.

The Company’s cybersecurity program is designed to be aligned to the Cybersecurity Framework published by the National Institute of Standards and Technology (“NIST CSF”). While we use the NIST CSF as a guide, this does not imply that

we meet any particular standards, specifications or requirements. We conduct regular internal and external assessments of our information security and cybersecurity programs, including periodic external audits for company-wide compliance with our program as well as specific business unit alignment, as required, with U.S. federal acquisition regulations and UK Cyber Essentials certifications. An external penetration test is performed annually against the Company’s network, in addition to our regular internal vulnerability scans.

The Company’s internal Incident Response Policy sets forth specific protocols for cyber or data incident detection, response and recovery. This process includes the assembly of a response team consisting of internal and, as required, external technical and legal experts upon the event of a cyberattack or incident. The Company reviews and updates this process regularly, including by engaging in tabletop exercises to simulate cybersecurity and data breach incidents. The Company maintains global cybersecurity insurance coverage that is reviewed annually for adequacy against operations and information systems.

The Company has implemented a number of measures to mitigate cybersecurity risk in its operations, including annual cybersecurity awareness training for employees, regular internal phishing exercises, technical security controls, maintenance of certain backup and protective systems, physical and system securities measures, and data security protocols. Once fully integrated, all of our businesses have access to a “cyber risk dashboard” that monitors various risk indicators. The cyber risk dashboard is monitored by our business units. The Company’s internal auditors periodically review and audit various processes and controls throughout the organization related to cybersecurity readiness.

The Company also has certain processes in place to manage cyber risks associated with third-party service providers which include various technical as well as contractual measures.

For more information on cybersecurity risks and how they affect our business, operating results and financial condition, please refer to Item 1A., “Risk Factors – The Company’s Business Operations May Be Materially Adversely Affected by Information Systems Interruptions or Intrusion, Including those Arising From Cybersecurity Attacks or Incidents or Violations of Laws Regulating Privacy and Data Security.” Based on our analysis at this time, we have not identified any risks from a cybersecurity threat or incident that we believe has or is reasonably likely to materially affect the Company.

Governance, Oversight and Leadership.

The Company’s Board of Directors and the Audit Committee oversee management’s efforts to address cybersecurity and information security risks. Senior management provides the Company’s Board of Directors updates on the Company’s cybersecurity program at least once a year, including as part of the Company’s enterprise risk management assessment, and, beginning in 2026, the Audit Committee reviews the cybersecurity program at least three times a year and on an as-needed basis. Such reviews, among other things, include the results of internal and/or external assessments, a review of cybersecurity governance at the management level, and a review of the Company’s cybersecurity program and progress toward various initiatives.

The Company also maintains an Executive Cybersecurity Steering Committee (the “Cybersecurity Committee”), made up of key members of senior leadership, to oversee and monitor progress of various cybersecurity initiatives throughout the organization. The Cybersecurity Committee meets quarterly. In addition, the Company asks each business unit to designate an employee as the local Information Security Officer responsible for monitoring the business unit’s cyber risk dashboard and coordinating with local leadership to respond to identified risks accordingly. Each local Information Security Officer completes an annual certification process and receives regular updates with respect to the Company’s cybersecurity program.

The Chief Information Officer (“CIO”), who reports to the Chief Financial Officer, along with members of the corporate and business unit information technology teams, are generally responsible for developing and managing the Company’s cybersecurity programs. Our CIO has over 20 years of experience in various information technology and information security roles, and our information security team is comprised of employees with broad knowledge of cybersecurity issues gained through experience and through training and certifications and includes our Director of Information Security, who has over 20 years of experience leading and managing cybersecurity programs. These individuals, along with other internal and external personnel as needed, monitor the prevention, detection, mitigation and remediation of cybersecurity incidents, and applicable personnel are informed of known cybersecurity incidents to form the appropriate incident response team and respond accordingly.

Due to the Company’s decentralized operating structure and global operations, the Company operates out of a large number of facilities worldwide. As of December 31, 2025, the Company operated approximately 210 plants and office facilities, of which approximately 20% are owned and the remainder are leased. Approximately 110 of the facilities were located outside of the U.S. Principal foreign countries include the U.K., Germany, the Netherlands, Canada, Italy, China and India. The number of facilities by business segment is approximately 90 for HST, 80 for FMT and 25 for FSDP. The remaining facilities relate to the Company’s shared service locations as well as 2 leased corporate offices in Illinois. The Company considers its facilities suitable and adequate for the Company’s operations and believes it has ample capacity in its plants and equipment to meet demand increases for future growth in the intermediate term, especially given its operational improvement initiatives that usually increase capacity.

The Company and its subsidiaries are party to legal proceedings incidental to the operation of their businesses as described in Note 10 in Part II, Item 8, “Financial Statements and Supplementary Data,” and such disclosure is incorporated by reference into this Item 3, “Legal Proceedings.”

The Company’s threshold for disclosing material environmental legal proceedings involving a government authority where potential monetary sanctions are involved is $1.0 million.

In addition, the Company and seven of its subsidiaries are presently named as defendants in a number of lawsuits claiming various asbestos-related personal injuries, allegedly as a result of exposure to products manufactured with components that contained asbestos. These components were acquired from third-party suppliers and were not manufactured by the Company or any of the defendant subsidiaries. To date, the majority of the Company’s settlements and legal costs, except for costs of coordination, administration, insurance investigation and a portion of defense costs, have been covered in full by insurance, subject to applicable deductibles. However, the Company cannot predict whether and to what extent insurance will be available to continue to cover these settlements and legal costs, or how insurers may respond to claims that are tendered to them. Asbestos-related claims have been filed in jurisdictions throughout the United States and the United Kingdom. Most of the claims resolved to date have been dismissed without payment. The balance of the claims have been settled for various immaterial amounts. Only one case has been tried, resulting in a verdict for the Company’s business unit. No provision has been made in the financial statements of the Company, other than for insurance deductibles in the ordinary course, and the Company does not currently believe the asbestos-related claims will have a material adverse effect on the Company’s business, financial position, results of operations or cash flows.

Not applicable.

PART II

The Company’s common stock trades on the New York Stock Exchange under the symbol “IEX”. As of February 13, 2026, there were approximately 7,472 stockholders of record of the Company’s common stock and there were 74,347,824 shares outstanding.

The Company’s payment of dividends in the future will be determined by the Company’s Board of Directors and will depend on business conditions, earnings and other factors.

For information pertaining to securities authorized for issuance under equity compensation plans and the related weighted average exercise price, see Part III, Item 12, “Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.”

On September 17, 2025, the Company’s Board of Directors authorized the repurchase of an additional $635.0 million of the Company’s common shares. This approval is in addition to the prior repurchase authorization of the Company’s Board of Directors of $500.0 million on March 17, 2020. These authorizations have no expiration date and exclude fees, commissions, excise taxes and other expenses related to such common stock repurchases.

The Company’s purchases of common stock during the quarter ended December 31, 2025 are as follows:

(1)Excludes commissions and the 1% excise tax imposed by the Inflation Reduction Act of 2022.

Performance Graph

The following table compares total stockholder returns over the last five years to the Standard & Poor’s (the “S&P”) 500 Index, the S&P Midcap 400 Industrials Sector Index and the Russell 2000 Index assuming the value of the investment in the Company’s common stock and each index was $100 on December 31, 2020. Total return values for the Company’s common stock, the S&P 500 Index, S&P Midcap 400 Industrials Sector Index and the Russell 2000 Index were calculated on cumulative total return values assuming reinvestment of dividends. The stockholder return shown on the graph below is not necessarily indicative of future performance.

The information contained in this Performance Graph section shall not be deemed to be “soliciting material” or “filed” with the SEC, nor shall such information be incorporated by reference into any future filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.

The following discussion and analysis should be read in conjunction with the Company’s Consolidated Financial Statements and related notes in this annual report. This discussion may contain forward-looking statements based upon current expectations that involve risks and uncertainties. The Company’s actual results and the timing of events could differ materially from those anticipated in these forward-looking statements as a result of several factors, including those set forth under Item 1A**, “Risk Factors” and under the heading “Cautionary Statement Under the Private Securities Litigation Reform Act” discussed elsewhere in this annual report.

This discussion includes certain non-GAAP financial measures that have been defined and reconciled to the most directly comparable financial measure prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) under the headings “Non-GAAP Disclosures” and “Free Cash Flow.” This discussion also includes Operating working capital which has been defined under the heading “Liquidity and Capital Resources.” The non-GAAP financial measures disclosed by the Company should not be considered a substitute for, or superior to, financial measures prepared in accordance with U.S. GAAP. The financial results prepared in accordance with U.S. GAAP and the reconciliations from these results should be carefully evaluated.

Overview

IDEX is an applied solutions provider specializing in the manufacturing of health and science technologies, fluid and metering technologies, and fire, safety and other diversified products built to customers’ specifications. IDEX’s products are sold in niche markets across a wide range of industries throughout the world. Accordingly, IDEX’s businesses are affected by levels of industrial activity and economic conditions in the U.S. and in other countries where it does business, as well as by the relationship of the U.S. Dollar to other currencies. Levels of capacity utilization and capital spending in certain markets and overall industrial activity are important factors that influence the demand for IDEX’s products.

2025 Highlights

(All comparisons are against 2024 unless otherwise noted)

• Record reported Net sales of $3,457.5 million increased 6% overall and increased 1% organically*

• Reported diluted earnings per common share (“EPS”) attributable to IDEX of $6.41 decreased 3%

• Adjusted diluted EPS attributable to IDEX* of $7.95 increased 1%

• Operating cash flow of $680.4 million increased 2% and was 141% of net income, up from 132%

• Free cash flow* of $616.8 million increased 2% and was 103% of adjusted net income*, up from 101%

• Returned capital to shareholders in the form of $248 million of share repurchases and $213 million of dividends

*These are non-GAAP measures. See the definitions of these non-GAAP measures and reconciliations to their most directly comparable U.S. GAAP financial measures under the headings “Non-GAAP Disclosures” and “Free Cash Flow.”

During 2025, the Company delivered organic sales growth and margin expansion as positive price across all segments more than offset lower volumes in the FMT and FSDP segments. Improved operational results included productivity improvements together with platform optimization savings resulting from restructuring and other cost containment actions taken during 2025. Results were tempered by higher interest expense, the absence of certain tax benefits recognized in 2024 as well as higher amortization on acquisition related intangibles assets. The Company generated strong cash flow and continued to deploy capital, including nearly $250 million of share repurchases during the year.

2026 Outlook

Looking ahead, the Company plans to continue strengthening its position in targeted advantaged markets by further integrating its capabilities and advancing its 8020 operating framework. These initiatives are designed to support sustained organic growth while enabling disciplined bolt‑on acquisitions. At the same time, the Company remains committed to a balanced capital deployment strategy that includes returning capital to shareholders.

Within the HST segment, the Company anticipates continued growth supported by robust demand across data center, semiconductor, space and defense, and food and beverage and pharmaceutical end markets. By contrast, the industrial and automotive businesses have yet to experience a meaningful recovery in demand. In the FMT segment, the Company expects continued momentum in the Water businesses. However, core industrial markets continue to track flat, and the Company is monitoring softer demand trends across chemical, energy and agricultural applications. For the FSDP segment, near‑term headwinds are expected to persist due to ongoing weakness in Fire & Safety markets outside the United States and subdued

capital spending in Dispensing. BAND‑IT is generally performing in line with the Company’s other industrial businesses, trending flat to start the year.

Results of Operations

The following is a discussion and analysis of the Company’s results of operations for the year ended December 31, 2025 compared with the year ended December 31, 2024. For the discussion related to the consolidated results of operations for the year ended December 31, 2024 compared with the year ended December 31, 2023, refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, which was filed with the SEC on February 20, 2025.

Net Sales

Net sales increased compared to the prior year as a result of contributions from the acquisition of Mott Corporation and its subsidiaries (“Mott”) as well as from organic sales and favorable impacts from foreign currency. Organic sales increased 1% primarily driven by positive price across all segments. Lower volumes in our FMT and FSDP segments were only partly mitigated by higher volumes in our HST segment.

Gross Profit and Gross Margin

Gross profit and Gross margin were positively impacted by price/cost and operational productivity improvements, and were negatively impacted by volume deleverage and unfavorable mix. Operational productivity improvements include platform optimization savings resulting from restructuring actions and other cost containment actions taken in 2025, which largely offset increases in other employee-related costs. Gross profit was also positively impacted by acquisitions, net of divestitures.

Selling, General and Administrative Expenses

Selling, general and administrative expenses increased primarily due to the $51.0 million impact from acquisitions, net of divestitures, including amortization.

Restructuring Expenses and Asset Impairments

Restructuring expenses and asset impairments primarily relate to severance expense for restructuring actions taken during both periods. Severance costs in 2025 were incurred in conjunction with organizational changes, primarily designed to connect scalable groups of businesses, which resulted in a reduction of headcount. Additionally, the Company eliminated certain

management layers in select areas. For additional information regarding restructuring expenses and asset impairments, refer to Note 14, “Restructuring Expenses and Asset Impairments,” in the Notes to Consolidated Financial Statements.

Gain on Sale of Businesses - Net

In 2024, the Company completed the sale of Alfa Valvole, Srl (“Alfa Valvole”) for proceeds of $45.1 million, net of cash remitted, resulting in a gain on the sale of $4.0 million, net of a release of cumulative foreign currency translation losses of $5.5 million. For additional information, refer to Note 2, “Acquisitions and Divestitures,” in the Notes to Consolidated Financial Statements.

Other Expense (Income) – Net

Other expense (income) – net in both periods primarily reflects the impact of foreign currency transactions.

Interest Expense - Net

Interest expense - net increased primarily due to the impact of higher debt outstanding in connection with financing the acquisition of Mott. For additional information, refer to Note 7, “Borrowings,” in the Notes to Consolidated Financial Statements.

Income Taxes

The 2025 effective tax rate was 23.7% as compared to the 2024 effective tax rate of 21.1%. The increase in the rate was primarily due to legislation enacted in 2025, which lowered tax benefits from certain foreign sourced income and increased state income taxes. Additionally, the mix of earnings in higher tax rate jurisdictions increased taxes and discrete tax items were less favorable than in the prior year period. For additional information, refer to Note 12, “Income Taxes,” in the Notes to Consolidated Financial Statements.

The One Big Beautiful Bill Act (“OBBBA”) was signed into law on July 4, 2025. Key income tax related provisions of the OBBBA impacting the Company include the repeal of mandatory capitalization of research and development expenditures under Internal Revenue Code Section 174, extension of bonus depreciation, and revisions to international tax regimes. The Company has reflected the tax impacts of the OBBBA legislation and estimates an immaterial impact on the Company’s Consolidated Financial Statements. The Company will continue to evaluate the impacts of the OBBBA as more guidance becomes available.

In October 2021, members of the Organization for Economic Co-operation and Development (“OECD”) and G20 Inclusive Framework on Base Erosion and Profit Shifting agreed to a two-pillar solution to address the tax challenges associated with the digitalization of the economy. In December 2021, the OECD released the Pillar Two Model Rules (“Pillar Two”), which define the global minimum tax and call for the taxation of large corporations at a minimum rate of 15%. While it is uncertain whether the United States will enact legislation to adopt Pillar Two, certain countries in which we operate have enacted legislation, and other countries are in the process of introducing draft legislation to implement the minimum tax directive. Many aspects of Pillar Two became effective January 1, 2025; however, nearly all of the jurisdictions in which IDEX operates have an effective tax rate above the 15% threshold. Therefore, the Company does not expect a material impact from the Pillar Two income tax rules. We are continuing to monitor legislative developments and evaluate financial results for changes in the expected impact.

Results of Reportable Business Segments

The Company has three reportable segments: HST, FMT and FSDP. For a detailed description of the operations within each segment, please refer to Part I, Item 1, “Business” of this Annual Report on Form 10-K.

Management’s measurements of segment performance are Net sales, adjusted earnings before interest, income taxes, depreciation and amortization (“Adjusted EBITDA”) and Adjusted EBITDA margin.

Health & Science Technologies Segment

(1) Acquisitions included Mott acquired in September 2024 and Micro-LAM, Inc. (“Micro-LAM”) acquired in July 2025.

• Organic sales reflected positive price and favorable volumes driven by higher volumes in the Company’s data center, semiconductor consumables and space and defense businesses as well as 8020-driven commercial initiatives, partially offset by lower volumes in the Company’s semiconductor OEM, industrial and automotive businesses.

• Adjusted EBITDA margin decreased slightly, reflecting net productivity improvements, including platform optimization savings and cost containment, favorable price/cost and volume leverage, which largely mitigated the impact of acquisitions, unfavorable mix and higher variable compensation.

Fluid & Metering Technologies Segment

(1) Divestitures included Alfa Valvole, sold in June 2024.

• Organic sales reflected unfavorable volumes in the Company’s chemical, energy, industrial water, agriculture and semiconductor businesses, partially offset by higher volume in the municipal water businesses, which together more than offset the benefit of positive price across the segment.

• Adjusted EBITDA margin increased primarily due to positive price/cost as well as net productivity improvements. These improvements were partially offset by volume deleverage and unfavorable mix. Platform optimization savings and cost containment offset other higher employee-related costs.

Fire & Safety/Diversified Products Segment

• Organic sales reflected positive price, which was more than offset by lower volumes in the Company’s Dispensing and Fire & Safety businesses. Volumes in the Company’s Dispensing business were impacted by the timing of Dispensing

projects in emerging markets and slower equipment replenishment. Strong North America Fire OEM volumes were more than offset by lower Fire & Safety volumes in Asia.

• Adjusted EBITDA margin decreased primarily due to volume deleverage and unfavorable mix, mostly offset by price/cost and net productivity improvements, including platform optimization savings and cost containment.

Liquidity and Capital Resources

Liquidity

Based on management’s current expectations and currently available information, the Company believes current cash, cash from operations and cash available under the Revolving Facility will be sufficient to meet its cash requirements, including funding of working capital, planned capital expenditures, interest and principal payments on all borrowings, pension and postretirement funding requirements, share repurchases and quarterly dividend payments to holders of the Company’s common stock for the foreseeable future. Additionally, in the event that suitable businesses are available for acquisition upon acceptable terms, the Company may obtain all or a portion of the financing for these acquisitions through the incurrence of additional borrowings. The Company believes that additional borrowings through various financing alternatives remain available, if required.

Select key liquidity metrics at December 31, 2025 are as follows:

Operating Working Capital

Operating working capital, calculated as Receivables – net plus Inventories – net minus Trade accounts payable, is used by management as a measurement of operational results as well as the short-term liquidity of the Company. The following table details Operating working capital as of December 31, 2025 and 2024:

Foreign currency translation, slightly offset by the impact of acquisitions, increased Operating working capital by $20.2 million during 2025. Apart from these items, the primary drivers of the change in Operating working capital were higher receivables, driven by price and the timing of shipments, and higher inventories, which increased early in the year to support planned production.

Cash Flow Summary

The following table is derived from the Consolidated Statements of Cash Flows:

Operating Activities

Operating cash flows increased $12.3 million in 2025 primarily due to improved operational results, lower cash payments for taxes and timing of customer deposits and project deliveries impacting the prior year period. These increases were partly offset by higher working capital as discussed under the heading “Operating Working Capital” above, higher interest payments primarily as a result of the issuance of the 4.950% Senior Notes (as defined in Note 7, “Borrowings,” in the Notes to Consolidated Financial Statements) during the third quarter of 2024 to fund the acquisition of Mott as well as higher severance payments made in conjunction with the organizational changes during 2025.

Investing Activities

Cash used in investing activities decreased $868.9 million in 2025 as compared to the prior year period driven by $863.2 million of lower net spending on business acquisitions, net of divestitures, in the current year period, primarily due to the acquisition of Mott and the sale of Alfa Valvole during the prior year period. See further details on the Company’s acquisition activity in Note 2, “Acquisitions and Divestitures,” in the Notes to Consolidated Financial Statements.

Financing Activities

Financing cash flows decreased $1,098.5 million in 2025 to $632.6 million of cash used in financing activities from $465.9 million of cash provided by financing activities. The prior year period included $774.3 million of net proceeds in connection with the financing of the Mott acquisition. The current year period included $247.8 million of share repurchases, $51.8 million of higher net payments on debt, lower proceeds from stock option exercises, net of shares withheld for taxes, which decreased $17.2 million, and $7.3 million of higher dividends paid to shareholders, as compared to the prior year period.

Free Cash Flow

The Company believes free cash flow, a non-GAAP measure, is an important measure of performance because it provides a measurement of cash generated from operations that is available for payment obligations such as operating cash requirements, planned capital expenditures, interest and principal payments on all borrowings, pension and postretirement funding requirements and quarterly dividend payments to holders of the Company’s common stock as well as for funding acquisitions and share repurchases. Free cash flow is calculated as cash flows provided by operating activities less capital expenditures. Free cash flow conversion, also a non-GAAP measure, is calculated as free cash flow divided by adjusted net income attributable to IDEX.

The following table reconciles cash flows provided by operating activities to free cash flow:

*This is a non-GAAP measure. See the definition of this non-GAAP measure and reconciliation to its most directly comparable U.S. GAAP financial measure under the heading “Non-GAAP Disclosures.”

Cash Requirements

Subsequent Borrowings Activity

Subsequent to December 31, 2025, the Company had net borrowings on the Revolving Facility of $58.2 million.

Subsequent Share Repurchases

Subsequent to December 31, 2025, the Company repurchased 0.2 million shares at a cost of $38.1 million.

Contractu**al Obligations

The Company’s cash requirements under contractual obligations include:

• Borrowings and related interest - See Note 7, “Borrowings,” in the Notes to Consolidated Financial Statements for further detail of the Company’s debt and timing of expected future principal payments.

• Rental payments for leases - See Note 9, “Leases,” in the Notes to Consolidated Financial Statements for further detail of our obligations and the timing of expected future payments.

• Purchase obligations - The Company enters into purchase orders with vendors and other parties in the ordinary course of business. As of December 31, 2025, the Company’s purchase obligations, consisting primarily of inventory commitments, totaled approximately $326.2 million, of which $290.1 million is expected to be settled during 2026 and the remainder thereafter.

• Pension and post-retirement medical benefit plans - See Note 17, “Retirement Benefits,” in the Notes to Consolidated Financial Statements for further detail of our obligations and the timing of expected future payments.

• Contingent consideration - In connection with the acquisition of Micro-LAM, the Company entered into an earnout agreement and may be required to pay contingent cash consideration upon the achievement of certain financial performance targets. See Note 8, “Fair Value Measurements,” in the Notes to Consolidated Financial Statements for further detail of our contingent consideration obligations.

Capital Expenditures

Capital expenditures generally include machinery and equipment that support growth and improved productivity, tooling, business system technology, replacement of equipment and investments in new facilities. The Company believes it has sufficient operating cash flows to continue to meet current obligations and invest in planned capital expenditures. Cash flows from operations were more than adequate to fund capital expenditures of $63.6 million and $65.1 million in 2025 and 2024, respectively.

Share Repurchases

On September 17, 2025, the Company’s Board of Directors authorized the repurchase of an additional $635.0 million of the Company’s common shares. This approval is in addition to the prior repurchase authorization of the Company’s Board of Directors of $500.0 million on March 17, 2020. In 2025, the Company repurchased 1.4 million shares at a cost of $252.4 million (including estimated excise taxes of $2.4 million, which will be paid in 2026), of which $2.2 million was settled in January 2026. There were no share repurchases in 2024. As of December 31, 2025, the amount of share repurchase authorization remaining was $924.7 million, excluding fees, commissions, excise taxes and other expenses related to such common stock repurchases. For additional information regarding the Company’s share repurchase program, refer to Note 11, “Share Repurchases,” in the Notes to Consolidated Financial Statements and Item 5 “Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.”

Dividends

The Company increased its quarterly cash dividend by 3% from $0.69 per common share in 2024 to $0.71 per common share in 2025. Total dividend payments to common shareholders were $212.6 million in 2025 compared with $205.3 million in 2024.

Covenants

The key financial covenants that the Company is required to maintain in connection with the Revolving Facility and the 5.13% Senior Notes are a minimum interest coverage ratio of 3.0 to 1 and a maximum leverage ratio of 3.50 to 1. At December 31, 2025, the Company was in compliance with both of these financial covenants, as the Company’s interest coverage ratio was 13.13 to 1 for covenant calculation purposes and the leverage ratio was 1.96 to 1. There are no financial covenants relating to the 2.625% Senior Notes, the 3.00% Senior Notes or the 4.950% Senior Notes (each as defined in Note 7, “Borrowings” in the Notes to Consolidated Financial Statements); however, all are subject to cross-acceleration provisions. For a discussion of the Company’s Revolving Facility and Senior Notes as well as the associated covenants, refer to Note 7, “Borrowings,” in the Notes to Consolidated Financial Statements.

Credit Ratings

The Company’s credit ratings, which were independently developed by the following credit agencies, are detailed below:

• S&P Global Ratings reaffirmed the Company’s corporate credit rating of BBB (stable outlook) in September 2024.

• Moody’s Investors Service affirmed the Company’s corporate credit rating of Baa2 (stable outlook) in August 2024.

• Fitch Ratings reaffirmed the Company’s corporate credit rating of BBB+ (stable outlook) in September 2025.

Off-Balance Sheet Arrangements

The Company had $21.4 million of letters of credit as of December 31, 2025, primarily issued as security for insurance and other performance obligations. Of the $21.4 million of letters of credit, only $2.6 million reduced the Company’s borrowing capacity under the Revolving Facility as of December 31, 2025.

Except as disclosed above, the Company has no off-balance sheet arrangements that currently have or are reasonably likely to have a material effect on the Company’s consolidated financial condition, changes in financial condition, results of operations, liquidity, capital expenditures or capital resources.

Critical Accounting Estimates

The Company believes that the application of the following accounting policy, which is important to its financial position and results of operations, requires significant judgments and estimates on the part of management. For a summary of the Company’s accounting policies, including the accounting policy discussed below, see Note 1, “Significant Accounting Policies,” in the Notes to Consolidated Financial Statements.

Goodwill and indefinite-lived intangible assets — Goodwill and other intangible assets with indefinite lives, which consists solely of trade names, are not amortized; rather they are tested for impairment at least annually, or more frequently if events or circumstances indicate that the asset may be impaired. The Company follows the guidance prescribed in Accounting Standards

Codification (“ASC”) 350, Goodwill and Other Intangible Assets, to test goodwill and indefinite-lived intangible assets for impairment. In assessing goodwill for impairment, the Company determines the fair value of each reporting unit utilizing an income approach (discounted cash flows) weighted 50% and a market approach (consisting of a comparable public company multiples methodology) weighted 50%. To determine the reasonableness of the calculated fair values, the Company reviews the assumptions to ensure that neither the income approach nor the market approach yielded significantly different valuations. Key assumptions and estimates used in the goodwill impairment assessment are described below. Based on the results of the Company’s annual impairment test at October 31, 2025, all reporting units had fair values substantially in excess of their carrying values.

The key assumptions are updated every year for each reporting unit for the income and market approaches used to determine the fair value. Various assumptions are utilized including forecasted operating results, annual operating plans, strategic plans, economic projections, anticipated future cash flows, the weighted average cost of capital, market data and market multiples. The assumptions that have the most significant effect on the fair value calculations are the weighted average cost of capital, market multiples, forecasted cash flows and terminal growth rates. The following assumption ranges were utilized by the Company in 2025 and 2024:

In assessing trade names for impairment, the Company uses the relief-from-royalty method, a form of the income approach, to determine the fair value of its trade names. The relief-from-royalty method is dependent on a number of significant management assumptions, including estimates of revenues, royalty rates and discount rates. Based on the results of the Company’s annual impairment test at October 31, 2025, the trade names had fair values in excess of their carrying values.

The Company’s acquisitions have generally included significant goodwill components and the Company expects to continue to make acquisitions. At December 31, 2025, goodwill and other indefinite-lived intangible assets totaled $3,505.4 million, or 51%, of the Company’s total assets.

See Note 6, “Goodwill and Intangible Assets,” in the Notes to Consolidated Financial Statements for further discussion on goodwill and indefinite-lived intangible assets.

Non-GAAP Disclosures

Set forth below are reconciliations of Organic sales, Adjusted gross profit, Adjusted gross margin, Adjusted net income attributable to IDEX, Adjusted diluted EPS attributable to IDEX, Consolidated Adjusted earnings before interest, income taxes, depreciation and amortization (“Adjusted EBITDA”) and Consolidated Adjusted EBITDA margin to their respective most directly comparable U.S. GAAP measure. Management uses these metrics to measure performance of the Company since they exclude items that are not reflective of ongoing operations, as identified in the reconciliations below. Management also supplements its U.S. GAAP financial statements with adjusted information to provide investors with greater insight, transparency and a more comprehensive understanding of the information used by management in its financial and operational decision making.

Management uses Adjusted EBITDA as its measure of segment performance, and believes it is a useful indicator of the strength and performance of the Company and its segments’ ongoing business operations, as well as a way for investors to evaluate and compare operating performance and value companies within the Company’s industry. Management believes that Adjusted EBITDA margin is useful for the same reason as Adjusted EBITDA. The definition of Adjusted EBITDA used here may differ from that used by other companies.

This report also references free cash flow and free cash flow conversion. These non-GAAP measures are discussed and reconciled to their most directly comparable U.S. GAAP measure in the section above titled “Free Cash Flow.”

The non-GAAP financial measures disclosed by the Company should not be considered a substitute for, or superior to, financial measures prepared in accordance with U.S. GAAP. Due to rounding, numbers presented throughout this and other documents may not add up or recalculate precisely. The financial results prepared in accordance with U.S. GAAP and the reconciliations from these results should be carefully evaluated.

(1) Represents the sales from acquired or divested businesses during the first 12 months of ownership or prior to divestiture.

(2) The portion of sales attributable to foreign currency translation is calculated as the difference between (a) the period-to-period change in organic sales, and (b) the period-to-period change in organic sales after applying prior period foreign exchange rates to the current year period.

(1) This adjustment represents the amount of Restructuring expenses and asset impairments attributable to IDEX. Restructuring expenses and asset impairments of $20.7 million on the Consolidated Statements of Income during 2025

included charges of $0.6 million recognized by the Company’s joint venture, $0.3 million of which was attributable to noncontrolling interest.

(2) The loss on sale of assets generated tax expense due to the characterization of the underlying assets sold for tax purposes.

The Company is subject to market risk associated with changes in foreign currency exchange rates and interest rates as well as inflationary factors.

Foreign Currency Exchange Rates

The Company is exposed to foreign currency risks that arise from its global business operations. Approximately 34% of net sales in 2025 were recorded by subsidiaries with functional currencies other than the U.S. Dollar. Changes in foreign currency exchange rates affect the Company’s results of operations, financial position and cash flows when these subsidiaries’ results are translated into U.S. Dollars, the Company’s functional reporting currency. The strengthening of the U.S. Dollar could result in unfavorable translation effects as the results of foreign operations are translated into U.S. Dollars.

Changes in foreign currency exchange rates also affect transaction gains and losses associated with transactions denominated in currencies other than a subsidiary’s functional currency. The Company manages its foreign exchange risk principally through invoicing customers in the same currency as the source of products. The foreign currency transaction losses

(gains) for the years ended December 31, 2025, 2024 and 2023 were $5.6 million, $(1.0) million and $7.3 million, respectively, and are reported within Other expense (income) – net on the Consolidated Statements of Income.

Interest Rate Fluctuations

The Company has interest rate exposure due to $228.8 million of the $1,829.8 million debt outstanding at December 31, 2025 bearing floating rate debt. The Company’s Revolving Facility bears interest at either an alternate base rate or adjusted Term SOFR (or appropriate alternative currency reference rates) plus, in each case, an applicable margin based on the lower of the Company’s senior, unsecured, long-term debt rating or the Company’s applicable leverage ratio. At December 31, 2025, there was $228.8 million outstanding under the Revolving Facility with an interest rate of 3.32%. A hypothetical 1% change in the interest rate would cause the interest expense on the Company’s floating rate debt to change by approximately $2.3 million per year.

Inflation Risk

We source a wide variety of materials and components from a network of global suppliers. While materials are typically available from numerous suppliers, they are subject to price fluctuations, including the impact of new or increased tariffs on imports, which could have a negative impact on our results. We seek to minimize the effects of inflation and changing prices through price increases to maintain reasonable gross margins.

MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

Management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting is a process to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States of America, and as defined in Exchange Act Rule 13a-15(f).

Internal control over financial reporting cannot provide absolute assurance of achieving financial reporting objectives because of its inherent limitations. Because of such limitations, there is a risk that material misstatements may not be prevented or detected on a timely basis by internal control over financial reporting.

Management has used the framework set forth in the report entitled “Internal Control — Integrated Framework” (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission to assess the effectiveness of the Company’s internal control over financial reporting. Management excluded Micro-LAM, Inc. from its assessment of internal controls over financial reporting as the acquisition occurred in 2025 (see Note 2, “Acquisitions and Divestitures,” in the Notes to Consolidated Financial Statements for further detail). This exclusion is in accordance with the general guidance from the Staff of the Securities and Exchange Commission that an assessment of a recently acquired business may be omitted from the scope of management’s assessment of internal control over financial reporting for one year following the acquisition. The total assets (excluding goodwill and intangible assets) and net sales of the current year acquisition represented approximately 1.1 percent and 0.4 percent, respectively, of the Consolidated Financial Statements amounts as of and for the year ended December 31, 2025. Based on that assessment, management has concluded that the Company’s internal control over financial reporting was effective as of December 31, 2025.

The effectiveness of the Company’s internal control over financial reporting as of December 31, 2025, has been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report which appears herein.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors of IDEX Corporation

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of IDEX Corporation and subsidiaries (the “Company”) as of December 31, 2025, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control — Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements as of and for the year ended December 31, 2025, of the Company and our report dated February 19, 2026, expressed an unqualified opinion on those financial statements.

As described in Management’s Report on Internal Control over Financial Reporting, management excluded Micro-LAM, Inc. from its assessment of internal control over financial reporting as this acquisition occurred in the twelve months ended December 31, 2025. The combined total assets (excluding goodwill and intangible assets) and net sales of this acquisition represented approximately 1.1 percent and 0.4 percent, respectively, of the consolidated financial statement amounts as of and for the year ended December 31, 2025. Accordingly, our audit did not include the internal control over financial reporting at this acquired company.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors of IDEX Corporation

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of IDEX Corporation and subsidiaries (the “Company”) as of December 31, 2025 and 2024, the related consolidated statements of income, comprehensive income, equity, and cash flows, for each of the three years in the period ended December 31, 2025, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operation

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None.

The Company maintains disclosure controls and procedures that are designed to ensure that information required to be disclosed in the Company’s Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to the Company’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

As required by SEC Rule 13a-15(b), the Company carried out an evaluation, under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures as of the end of the period covered by this report. Based on the foregoing, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of December 31, 2025.

Management’s Report on Internal Control Over Financial Reporting appearing on page 35 of this report is incorporated into this Item 9A by reference.

There has been no change in the Company’s internal control over financial reporting during the Company’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

During the year ended December 31, 2025, none of the Company’s directors or executive officers adopted or terminated any contract, instruction or written plan for the purchase or sale of Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement” as defined in Item 408 of Regulation S-K under the Securities Exchange Act of 1934, as amended.

Not Applicable.

PART III

Information under the headings “Election of Directors”; “Board Committees”; “Corporate Governance”; and “Delinquent Section 16(a) Reports” in the 2026 Proxy Statement is incorporated into this Item 10 by reference. Information regarding executive officers of the Company is located in Part I, Item 1, of this report under the caption “Information about Our Executive Officers.”

The Company has adopted a Code of Business Conduct and Ethics applicable to the Company’s directors, officers (including the Company’s principal executive officer, principal financial officer and principal accounting officer) and employees. The Code of Business Conduct and Ethics, along with the Audit Committee Charter, Nominating and Corporate Governance Committee Charter, Compensation Committee Charter and Corporate Governance Guidelines are available on the Company’s website at www.idexcorp.com under “Investors.” In the event the Company amends or waives any of the provisions of the Code of Business Conduct and Ethics applicable to the Company’s principal executive officer, principal financial officer or principal accounting officer, the Company intends to disclose the same on its website.

The Company has insider trading policies and procedures that govern the purchase, sale and other dispositions of its securities by directors, officers, employees and contractors, as well as by the Company itself. We believe these policies and procedures are reasonably designed to promote compliance with insider trading laws, rules and regulations and applicable listing standards. A copy of our Insider Trading Policy is filed with this Annual Report on Form 10-K as Exhibit 19.

Information under the heading “Executive Compensation” in the 2026 Proxy Statement is incorporated into this Item 11 by reference.

Information under the heading “Security Ownership” in the 2026 Proxy Statement is incorporated into this Item 12 by reference.

Equity Compensation Plan Information

Information with respect to the Company’s equity compensation plans as of December 31, 2025 is as follows:

Information under the headings, “Corporate Governance” and “Board Committees” in the 2026 Proxy Statement is incorporated into this Item 13 by reference.

Information under the heading “Principal Accountant Fees and Services” in the 2026 Proxy Statement is incorporated into this Item 14 by reference.

PART IV

(A)1. Financial Statements

Consolidated Financial Statements filed as part of this report are listed under Part II, Item 8. “Financial Statements and Supplementary Data.”

2. Financial Statement Schedules

Financial statement schedules are omitted because they are not applicable, not required, not material or because the required information is included in the Consolidated Financial Statements of the Company or the Notes thereto.

3. Exhibits

The exhibits filed with this report are listed on the “Exhibit Index,” which precedes the signature page of this report.

None.

Exhibit Index