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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1. Name and Address of Reporting Person * Rubric Capital Management LP 2. Issuer Name and Ticker or Trading Symbol Talen Energy Corp [TLN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 155 EAST 44TH ST, SUITE 1630 3. Date of Earliest Transaction (Month/Day/Year) 06/25/2025 (Street) NEW YORK, NY 10017 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _X_ 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, par value $0.001 per share ("Common Stock") 06/25/2025 S 44,343 D $288.5476(3) 6,079,157 I See footnotes(1)(2) Common Stock 06/25/2025 S 6,429 D $289.2463(4) 6,072,728 I See footnotes(1)(2) Common Stock 06/25/2025 S 200 D $290.49 6,072,528 I See footnotes(1)(2) Common Stock 06/25/2025 S 16,759 D $292.4978(5) 6,055,769 I See footnotes(1)(2) Common Stock 06/25/2025 S 21,552 D $293.6267(6) 6,034,217 I See footnotes(1)(2) Common Stock 06/25/2025 S 13,973 D $294.4712(7) 6,020,244 I See footnotes(1)(2) Common Stock 06/25/2025 S 4,957 D $295.1766(8) 6,015,287 I See footnotes(1)(2) Common Stock 06/25/2025 S 100 D $297.14 6,015,187 I See footnotes(1)(2) Common Stock 06/26/2025 S 1,321 D $289.4592(9) 6,013,866 I See footnotes(1)(2) Common Stock 06/26/2025 S 18,927 D $290.1862(10) 5,994,939 I See footnotes(1)(2) Common Stock 06/26/2025 S 15,824 D $291.084(11) 5,979,115 I See footnotes(1)(2) Common Stock 06/26/2025 S 33,121 D $292.1868(12) 5,945,994 I See footnotes(1)(2) Common Stock 06/26/2025 S 32,924 D $293.3438(13) 5,913,070 I See footnotes(1)(2) Common Stock 06/26/2025 S 100 D $294 5,912,970 I See footnotes(1)(2) Common Stock 06/27/2025 S 7,950 D $292.8183(14) 5,905,020 I See footnotes(1)(2) Common Stock 06/27/2025 S 2,365 D $293.3363(15) 5,902,655 I See footnotes(1)(2) Common Stock 06/27/2025 S 12,290 D $294.6545(16) 5,890,365 I See footnotes(1)(2) Common Stock 06/27/2025 S 51,810 D $295.6241(17) 5,838,555 I See footnotes(1)(2) Common Stock 06/27/2025 S 76,545 D $296.3781(18) 5,762,010 I See footnotes(1)(2) Common Stock 06/27/2025 S 25,903 D $297.6954(19) 5,736,107 I See footnotes(1)(2) Common Stock 06/27/2025 S 1,137 D $298.1389(20) 5,734,970 I See footnotes(1)(2) Common Stock 06/27/2025 J(21) 1,281,839 D (21) 4,453,131 I See footnotes(1)(2) Common Stock 52,171 D(2)(22)

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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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Rubric Capital Management LP 155 EAST 44TH ST, SUITE 1630 NEW YORK, NY 10017		X
Rosen David Efraim 155 EAST 44TH ST., SUITE 1630 NEW YORK, NY 10017		X

Signatures

Rubric Capital Management LP, By: /s/ Michael Nachmani, its Chief Operating Officer		06/27/2025
**Signature of Reporting Person		Date
/s/ David Rosen		06/27/2025
**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)	This Form 4 is filed by Rubric Capital Management LP ("Rubric Capital") and Mr. David Rosen, with respect to the securities held by certain funds and/or accounts (collectively, the "Rubric Vehicles"). Rubric Capital serves as the investment adviser to the Rubric Vehicles. Mr. David Rosen serves as the Managing Member of Rubric Capital Management GP, LLC, the general partner of Rubric Capital.
(2)	The filing of this statement shall not be deemed an admission that any Reporting Person is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each Reporting Person expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.
(3)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $288 to $289, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(4)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $289.01 to $289.86, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(5)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $292 to $292.93, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(6)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $293.08 to $294.08, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(7)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $294.09 to $295.09, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(8)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $295.12 to $295.37, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(9)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $288.82 to $289.72, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(10)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $289.825 to $290.785, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(11)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $290.89 to $291.635, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(12)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $291.91 to $292.9, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(13)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $292.94 to $293.89, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(14)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $292.00 to $292.985, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(15)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $293.01 to $294.00, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(16)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $294.02 to $295.02, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(17)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $295.025 to $296.02, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(18)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $296.03 to $297.03, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(19)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $297.05 to $298.05, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(20)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $298.08 to $298.205, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
(21)	This transaction represents a pro-rata in-kind distribution to limited partners for no consideration (the "Pro-Rata Distribution").
(22)	Securities directly held by Mr. David Rosen. The securities were distributed to Mr. David Rosen in the Pro-Rata Distribution.

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