Entergy 10-Q 2026-03-31

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

For the quarterly period ended March 31, 2026

OR

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Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act:

Indicate by check mark whether the registrants (1) have 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 registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. Yes ☑ No ☐

Indicate by check mark whether the registrants have 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 registrants were required to submit such files). Yes ☑ No ☐

Indicate by check mark whether each 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.

If an emerging growth company, indicate by check mark if the registrants have elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrants are shell companies (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☑

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See the “Market and Credit Risk Sensitive Instruments” section of Entergy Corporation and Subsidiaries Management’s Financial Discussion and Analysis.

Disclosure Controls and Procedures

As of March 31, 2026, evaluations were performed under the supervision and with the participation of Entergy Corporation, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy (each individually a “Registrant” and collectively the “Registrants”) management, including their respective Principal Executive Officers (PEO) and Principal Financial Officers (PFO). The evaluations assessed the effectiveness of the Registrants’ disclosure controls and procedures. Based on the evaluations, each PEO and PFO has concluded that, as to the Registrant or Registrants for which they serve as PEO or PFO, the Registrant’s or Registrants’ disclosure controls and procedures are effective to ensure that information required to be disclosed by each Registrant in reports that it files or submits under the Securities Exchange Act of 1934 is recorded, processed, summarized, and reported within the time periods specified in Securities and Exchange Commission rules and forms; and that the Registrant’s or Registrants’ disclosure controls and procedures are also effective in reasonably assuring that such information is accumulated and communicated to the Registrant’s or Registrants’ management, including their respective PEOs and PFOs, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

Under the supervision and with the participation of each Registrant’s management, including its respective PEO and PFO, each Registrant evaluated changes in internal control over financial reporting that occurred during the quarter ended March 31, 2026 and found no change that has materially affected, or is reasonably likely to materially affect, internal control over financial reporting.

ENTERGY ARKANSAS, LLC AND SUBSIDIARIES

MANAGEMENT’S FINANCIAL DISCUSSION AND ANALYSIS

Winter Storm Fern

See the “Winter Storm Fern” section of Entergy Corporation and Subsidiaries Management’s Financial Discussion and Analysis for a discussion of Winter Storm Fern. Entergy Arkansas’s current estimate for the cost of mobilizing crews and restoring power is approximately $50 million, including approximately $40 million in capital costs and approximately $10 million in non-capital costs. Natural gas purchases for Entergy Arkansas were $74 million in January 2026 compared to $25 million in January 2025.

Results of Operations

Net Income

Net income decreased $3.8 million primarily due to higher interest expense and lower volume/weather, partially offset by higher retail electric price.

Operating Revenues

Following is an analysis of the change in operating revenues comparing the three months ended March 31, 2026 to the three months ended March 31, 2025:

Entergy Arkansas’s results include revenues from rate mechanisms designed to recover fuel, purchased power, and other costs such that the revenues and expenses associated with these items generally offset and do not affect net income. “Fuel, rider, and other revenues that do not significantly affect net income” includes the revenue variance associated with these items.

The retail electric price variance is primarily due to an increase in formula rate plan rates effective January 2026. See Note 2 to the financial statements in the Form 10-K for discussion of the 2025 formula rate plan filing.

The volume/weather variance is primarily due to the effect of less favorable weather on residential sales, a decrease in weather-adjusted residential usage, and a decrease in commercial usage, partially offset by an increase in industrial usage. The increase in industrial usage is primarily due to an increase in demand from large industrial customers, primarily in the primary metals and technology industries.

Entergy Arkansas, LLC and Subsidiaries

Management’s Financial Discussion and Analysis

Total electric energy sales for Entergy Arkansas for the three months ended March 31, 2026 and 2025 are as follows:

See Note 12 to the financial statements herein for additional discussion of Entergy Arkansas’s operating revenues.

Other Income Statement Variances

Other operation and maintenance expenses increased primarily due to an increase of $6.9 million in power delivery expenses primarily due to higher vegetation maintenance costs and increased contract labor costs, partially offset by a decrease of $6.2 million in insurance expenses primarily due to higher nuclear insurance refunds.

Taxes other than income taxes increased primarily due to increases in ad valorem taxes resulting from higher assessments and millage rate increases.

Depreciation and amortization expenses increased primarily due to additions to plant in service and an increase in FERC jurisdictional depreciation rates effective January 2026.

Entergy Arkansas records a regulatory charge or credit for the difference between asset retirement obligation-related expenses and nuclear decommissioning trust earnings plus asset retirement obligation-related costs collected in revenue.

Other income increased primarily due to changes in decommissioning trust fund activity, including portfolio rebalancing of decommissioning trust funds in first quarter 2026.

Interest expense increased primarily due to:

• the issuances of $500 million of 5.75% Series mortgage bonds and $500 million of 4.95% Series mortgage bonds, each in January 2026;

• the issuance of $300 million of 5.45% Series mortgage bonds in May 2025; and

• $3.8 million in carrying costs in first quarter 2026 on retained net proceeds from the monetization of nuclear production tax credits.

Income Taxes

The effective income tax rate was 17.6% for the first quarter 2026. The difference in the effective income tax rate for the first quarter 2026 versus the federal statutory rate of 21% was primarily due to the amortization of excess accumulated deferred income taxes, certain book and tax differences related to utility plant items, and book

Entergy Arkansas, LLC and Subsidiaries

Management's Financial Discussion and Analysis

and tax differences related to the allowance for equity funds used during construction, partially offset by the accrual for state income taxes.

The effective income tax rate was 21% for the first quarter 2025. The accrual for state income taxes was offset by certain book and tax differences related to utility plant items and the amortization of excess state accumulated deferred income taxes as a result of tax rate changes.

**Incom

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See “PART I, Item 1, Litigation” in the Form 10-K for a discussion of legal, administrative, and other regulatory proceedings affecting Entergy. Also see Notes 1 and 2 to the financial statements herein and “Item 5, Other Information, Environmental Regulation” below for updates regarding environmental proceedings and regulation.

There have been no material changes to the risk factors discussed in "Part I, Item 1A. Risk Factors" in the Form 10-K.

Issuer Purchases of Equity Securities (1)

In accordance with Entergy’s stock-based compensation plans, Entergy periodically grants stock options to key employees, which may be exercised to obtain shares of Entergy’s common stock. According to the plans, these shares can be newly issued shares, treasury stock, or shares purchased on the open market. Entergy’s management has been authorized by the Board to repurchase on the open market shares up to an amount sufficient to fund the exercise of grants under the plans. In addition to this authority, the Board has authorized share repurchase programs to enable opportunistic purchases in response to market conditions. In October 2010 the Board granted authority for a $500 million share repurchase program. The amount of share repurchases under these programs may vary as a result of material changes in business results or capital spending or new investment opportunities. In addition, in the first quarter 2026, Entergy withheld 88,415 shares of its common stock at $93.19 per share, 72,452 shares of its common stock at $94.97 per share, 217,131 shares of its common stock at $95.67 per share, 56,436 shares of its common stock at $97.96 per share to pay income taxes due upon vesting of restricted stock granted and payout of performance units as part of its long-term incentive program.

(1)See Note 12 to the financial statements in the Form 10-K for additional discussion of the stock-based compensation plans.

(2)Maximum amount of shares that may yet be repurchased relates only to the $500 million share repurchase program plan and does not include an estimate of the amount of shares that may be purchased to fund the exercise of grants under the stock-based compensation plans.

Rule 10b5-1 Trading Arrangements

During the three months ended March 31, 2026, the following directors or officers of Entergy or the Registrant Subsidiaries adopted, modified, or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K, relating to shares of Entergy Corporation common stock:

(a)Each trading arrangement marked as a Rule 10b5-1 trading arrangement is intended to satisfy the affirmative defense of Rule 10b5-1(c).

(b)Except as indicated by footnote, each trading arrangement permitted or permits transactions through and including the earlier to occur of (a) the completion of all purchases or sales or (b) the expiration date listed in the table. Each trading arrangement marked as a “Rule 10b5-1 Plan” only permitted or only permits transactions upon expiration of the applicable mandatory cooling-off period under Rule 10b5-1(c), as amended.

(c)This trading arrangement provides for the sale of up to 10,638 shares upon the exercise of outstanding options.

Other than those disclosed above, no director or officer of Entergy or any of the Registrant Subsidiaries adopted, modified, or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement” during the three months ended March 31, 2026.

Regulation of the Nuclear Power Industry

The following is an update to the “Regulation of the Nuclear Power Industry” section of Part I, Item 1 of the Form 10-K.

NRC Reactor Oversight Process

The NRC’s Reactor Oversight Process is a program to collect information about plant performance, assess the information for its safety significance, and provide for appropriate licensee and NRC response. The NRC evaluates plant performance by analyzing two distinct inputs: inspection findings resulting from the NRC’s inspection program and performance indicators reported by the licensee. The evaluations result in the placement of each plant in one of the NRC’s Reactor Oversight Process Action Matrix columns: “licensee response column,” or Column 1, “regulatory response column,” or Column 2, “degraded cornerstone column,” or Column 3, “multiple/repetitive degraded cornerstone column,” or Column 4, and “unacceptable performance,” or Column 5. Plants in Column 1 are subject to normal NRC inspection activities. Plants in Column 2, Column 3, or Column 4 are subject to progressively increasing levels of inspection by the NRC with, in general, progressively increasing levels of

associated costs. Continued plant operation is not permitted for plants in Column 5. All of the nuclear generating plants owned and operated by Entergy’s Utility business are currently in Column 1.

In March 2026 the NRC issued an inspection report for Grand Gulf, in which it identified a preliminary “white” finding with “low safety significance” related to one of Grand Gulf’s emergency diesel generators.  The NRC is continuing its evaluation of the issue and is expected to complete its determination during second quarter 2026.  If the NRC’s review results in a final white finding, Grand Gulf would be placed in Column 2 and would remain in Column 2 until the satisfactory completion of an NRC supplemental inspection.

Environmental Regulation

The following is an update to the “Environmental Regulation” section of Part I, Item 1 of the Form 10-K.

Coal Combustion Residuals

As discussed in the Form 10-K, in April 2015 the EPA published the final coal combustion residuals (CCR) rule (2015 CCR Rule) regulating CCRs destined for disposal in landfills or surface impoundments as non-hazardous wastes regulated under Resource Conservation and Recovery Act Subtitle D. The final regulations created new compliance requirements including modified storage, new notification and reporting practices, product disposal considerations, and CCR unit closure criteria but excluded CCRs that are beneficially reused in certain processes. Entergy believes that on-site disposal options will be available at its facilities, to the extent needed.

In May 2024 the EPA finalized a rule (2024 CCR Rule) establishing management standards for legacy CCR surface impoundments (i.e., inactive surface impoundments at inactive power plants) and establishing a new class of units referred to as CCR management units (CCRMUs) (i.e., non-containerized CCR located at a regulated CCR facility). CCR utilized in roadbeds and embankments is excluded from the CCRMU definition. Entergy does not have any legacy impoundments; however, the definition of CCRMUs includes on-site areas where CCR was beneficially used. This is contrary to the 2015 CCR Rule which exempted beneficial uses that met certain criteria. Under this expanded rule, all facilities were required to identify and delineate any CCRMU greater than one ton and submit a facility evaluation report by February 2026. Any potential requirements for corrective action or operational changes under the 2015 CCR Rule and the 2024 CCR Rule continue to be assessed. Notably, ongoing litigation has resulted in the EPA’s continuing review of the rules. In February 2026, as part of its stated deregulatory agenda, the EPA finalized a rule extending various deadlines, including the facility evaluation report Parts 1 and 2 deadlines by one year, until February 2027 and February 2028, respectively. Additional deregulatory rulemaking is expected in 2026.

Pursuant to Item 601(b)(4)(iii) of Regulation S-K, Entergy Corporation agrees to furnish to the Commission upon request any instrument with respect to long-term debt that is not registered or listed herein as an Exhibit because the total amount of securities authorized under such agreement does not exceed ten percent of the total assets of Entergy Corporation and its subsidiaries on a consolidated basis.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature for each undersigned company shall be deemed to relate only to matters having reference to such company or its subsidiaries.

Date: May 1, 2026