Talen Energy Corp (TLN)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-07-15 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Talen Energy Corp (TLN) CIK: 0001622536 --- Reporting Owner --- Name: Nutt Terry L CIK: 0001707031 Role: Officer (President) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-07-15 | Code: M (Exercise of derivative) Shares: +8,312 Shares Owned After: 76,136 | Ownership: D (Direct) Footnotes: [F1] 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, par value $0.001 ("common stock") of Talen Energy Corporation (the "Company") or its cash equivalent, as determined at the time of settlement by the Compensation Committee of the Company's Board of Directors pursuant to the terms of the Plan. The reporting person's RSUs were granted on July 10, 2023 and the final installment of the reporting person's RSUs vested on July 10, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash. [F2] Includes 63 shares of the Company's common stock purchased from the 2025 Talen Energy Corporation Employee Stock Purchase Plan on June 30, 2026. [Transaction #2] Security: Common Stock Date: 2026-07-15 | Code: F (Payment of exercise/tax) Shares: -3,271 | Price: $385.80 Total Value: $1,261,951.80 Shares Owned After: 72,865 | Ownership: D (Direct) Footnotes: [F3] In an exempt disposition to the Company under Rule 16b-3(e), the reporting person remitted shares to the Company in connection with the satisfaction of tax withholding obligations arising out of the vesting of the RSUs. --- Derivative Transactions --- [Transaction #1] Security: 2023 Restricted Stock Units Date: 2026-07-15 | Code: M (Exercise of derivative) Shares: -20,780 | Price: $0.00 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F1] 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, par value $0.001 ("common stock") of Talen Energy Corporation (the "Company") or its cash equivalent, as determined at the time of settlement by the Compensation Committee of the Company's Board of Directors pursuant to the terms of the Plan. The reporting person's RSUs were granted on July 10, 2023 and the final installment of the reporting person's RSUs vested on July 10, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash. [F1] 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, par value $0.001 ("common stock") of Talen Energy Corporation (the "Company") or its cash equivalent, as determined at the time of settlement by the Compensation Committee of the Company's Board of Directors pursuant to the terms of the Plan. The reporting person's RSUs were granted on July 10, 2023 and the final installment of the reporting person's RSUs vested on July 10, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash. [F1] 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, par value $0.001 ("common stock") of Talen Energy Corporation (the "Company") or its cash equivalent, as determined at the time of settlement by the Compensation Committee of the Company's Board of Directors pursuant to the terms of the Plan. The reporting person's RSUs were granted on July 10, 2023 and the final installment of the reporting person's RSUs vested on July 10, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash. --- Footnotes (Complete Index) --- F1: 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, par value $0.001 ("common stock") of Talen Energy Corporation (the "Company") or its cash equivalent, as determined at the time of settlement by the Compensation Committee of the Company's Board of Directors pursuant to the terms of the Plan. The reporting person's RSUs were granted on July 10, 2023 and the final installment of the reporting person's RSUs vested on July 10, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash. F2: Includes 63 shares of the Company's common stock purchased from the 2025 Talen Energy Corporation Employee Stock Purchase Plan on June 30, 2026. F3: In an exempt disposition to the Company under Rule 16b-3(e), the reporting person remitted shares to the Company in connection with the satisfaction of tax withholding obligations arising out of the vesting of the RSUs. --- Signature --- /s/ /s/ Daniel J. Kelly, attorney-in-fact (2026-07-15)