Item 5. Other Information

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.