Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Olagues Darren J 2. Issuer Name and Ticker or Trading Symbol Talen Energy Corp [TLN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Development Officer (Last) (First) (Middle) 2929 ALLEN PKWY, SUITE 2200 3. Date of Earliest Transaction (Month/Day/Year) 02/26/2026 (Street) HOUSTON, TX 77019 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 117(1) D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

2026 Restricted Stock Units

(2)

02/26/2026

A

3,450

(3)

(3)

Common Stock

3,450

$ 0

3,450

D

2026 Performance-Based Restricted Stock Units

(4)

02/26/2026

A

16,096

(5)

(5)

Common Stock

16,096

$ 0

16,096

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Olagues Darren J 2929 ALLEN PKWY, SUITE 2200 HOUSTON, TX 77019			Chief Development Officer

Signatures

/s/ John C. Wander, attorney-in-fact		03/02/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Includes 117 shares of common stock, par value $0.001 ("common stock"), of Talen Energy Corporation (the "Company") purchased from the 2025 Talen Energy Corporation Employee Stock Purchase Plan on June 30, 2025.
(2)	Each Restricted Stock Unit ("RSU") was issued under the Talen Energy Corporation 2023 Equity Incentive Plan (the "Plan") and represents a contingent right to receive one share of common stock of the Company or its cash equivalent, as determined at the time of settlement by the Compensation Committee of the Company's Board of Directors (the "Committee") pursuant to the terms of the Plan.
(3)	Represents 1,380 RSUs that will vest on February 25, 2027, 1,380 RSUs that will vest on February 25, 2028 and 690 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service.
(4)	Each Performance-Based Restricted Stock Unit ("PSU") was issued under the Plan and represents a contingent right to receive one share of common stock or its cash equivalent, as determined at the time of settlement by the Committee pursuant to the terms of the Plan.
(5)	Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 6,438 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 9,658 of the PSUs will be eligible to vest based on performance as of February 25, 2029. The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award, plus, if the maximum performance level is exceeded, an additional number of PSUs in an amount equal to the reporting person's proportionate share among the participating executive officers of 3% of the Company's market capitalization above the maximum performance level. The numbers of PSUs and shares of common stock in this row represent the maximum level of performance (or 200%) for each award.

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