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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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":20780},"source":{"system":"sec-edgar","filing":"0001628280-26-048330","document":"wk-form4_1784146095.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1707031/000162828026048330/wk-form4_1784146095.xml","form_type":"4"}},{"id":709006,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":30326,"kind":"person","name":"Nutt Terry L","position":1,"cik":"0001707031","reported_name":"Nutt Terry L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2026-07-15T20:08:18.000Z","date":"2026-07-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":3271,"price":385.8,"value":1261951.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"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."}],"balance_after":72865,"source":{"system":"sec-edgar","filing":"0001628280-26-048330","document":"wk-form4_1784146095.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1707031/000162828026048330/wk-form4_1784146095.xml","form_type":"4"}},{"id":709005,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":30326,"kind":"person","name":"Nutt Terry L","position":1,"cik":"0001707031","reported_name":"Nutt Terry L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2026-07-15T20:08:18.000Z","date":"2026-07-15","kind":"exercise","planned":false,"acquired":true,"shares":8312,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 63 shares of the Company's common stock purchased from the 2025 Talen Energy Corporation Employee Stock Purchase Plan on June 30, 2026."}],"balance_after":76136,"source":{"system":"sec-edgar","filing":"0001628280-26-048330","document":"wk-form4_1784146095.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1707031/000162828026048330/wk-form4_1784146095.xml","form_type":"4"}},{"id":733478,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":37146,"kind":"person","name":"ABBAS GIZMAN I","position":1,"cik":"0001543090","reported_name":"ABBAS GIZMAN I","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-17T20:10:31.000Z","date":"2026-06-15","kind":"sale","planned":false,"acquired":false,"shares":2600,"price":380,"value":988000.0,"ownership":{"direct":true},"balance_after":2606,"source":{"system":"sec-edgar","filing":"0001628280-26-043879","document":"wk-form4_1781727028.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1543090/000162828026043879/wk-form4_1781727028.xml","form_type":"4"}},{"id":745772,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":40374,"kind":"person","name":"McFarland Mark Allen","position":1,"cik":"0001720720","reported_name":"McFarland Mark Allen","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-06-08T20:22:19.000Z","date":"2026-06-08","kind":"other","planned":false,"acquired":true,"shares":260335,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"All transactions reported herein reflect shares transferred by the reporting person from his individual name to MCM Living Trust, a revocable trust for which the reporting person is trustee. The transactions constitute a change from direct to indirect beneficial ownership only and do not involve a change in pecuniary interest."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"All transactions reported herein reflect shares transferred by the reporting person from his individual name to MCM Living Trust, a revocable trust for which the reporting person is trustee. The transactions constitute a change from direct to indirect beneficial ownership only and do not involve a change in pecuniary interest."}],"balance_after":260335,"source":{"system":"sec-edgar","filing":"0001628280-26-041583","document":"wk-form4_1780950135.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026041583/wk-form4_1780950135.xml","form_type":"4"}},{"id":745771,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":40374,"kind":"person","name":"McFarland Mark Allen","position":1,"cik":"0001720720","reported_name":"McFarland Mark Allen","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-06-08T20:22:19.000Z","date":"2026-06-08","kind":"other","planned":false,"acquired":false,"shares":260335,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"All transactions reported herein reflect shares transferred by the reporting person from his individual name to MCM Living Trust, a revocable trust for which the reporting person is trustee. The transactions constitute a change from direct to indirect beneficial ownership only and do not involve a change in pecuniary interest."}],"balance_after":117,"source":{"system":"sec-edgar","filing":"0001628280-26-041583","document":"wk-form4_1780950135.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026041583/wk-form4_1780950135.xml","form_type":"4"}},{"id":761270,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":40374,"kind":"person","name":"McFarland Mark Allen","position":1,"cik":"0001720720","reported_name":"McFarland Mark Allen","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"2023 Performance-Based Restricted Stock Units","published_at":"2026-05-27T22:34:26.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":false,"shares":812782,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"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. The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award, plus an additional incentive based on the Company's market capitalization at vesting, as more fully set forth in the applicable award agreement. The number of shares in this row represents the actual level of performance (200%) plus the additional incentive shares described above. The reporting person's PSUs were granted on June 16, 2023 and they vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such PSUs settled in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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. The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award, plus an additional incentive based on the Company's market capitalization at vesting, as more fully set forth in the applicable award agreement. The number of shares in this row represents the actual level of performance (200%) plus the additional incentive shares described above. The reporting person's PSUs were granted on June 16, 2023 and they vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such PSUs settled in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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. The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award, plus an additional incentive based on the Company's market capitalization at vesting, as more fully set forth in the applicable award agreement. The number of shares in this row represents the actual level of performance (200%) plus the additional incentive shares described above. The reporting person's PSUs were granted on June 16, 2023 and they vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such PSUs settled in cash."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":812782},"source":{"system":"sec-edgar","filing":"0001628280-26-038578","document":"wk-form4_1779921263.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038578/wk-form4_1779921263.xml","form_type":"4"}},{"id":761269,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":40374,"kind":"person","name":"McFarland Mark Allen","position":1,"cik":"0001720720","reported_name":"McFarland Mark Allen","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"2023 Restricted Stock Units","published_at":"2026-05-27T22:34:26.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":false,"shares":74381,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan. The reporting person's RSUs were granted on June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan. The reporting person's RSUs were granted on June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan. The reporting person's RSUs were granted on June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":74381},"source":{"system":"sec-edgar","filing":"0001628280-26-038578","document":"wk-form4_1779921263.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038578/wk-form4_1779921263.xml","form_type":"4"}},{"id":761268,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":40374,"kind":"person","name":"McFarland Mark Allen","position":1,"cik":"0001720720","reported_name":"McFarland Mark Allen","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-27T22:34:26.000Z","date":"2026-05-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":139641,"price":324.21,"value":45273008.61,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"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 and PSUs."}],"balance_after":260452,"source":{"system":"sec-edgar","filing":"0001628280-26-038578","document":"wk-form4_1779921263.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038578/wk-form4_1779921263.xml","form_type":"4"}},{"id":761267,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":40374,"kind":"person","name":"McFarland Mark Allen","position":1,"cik":"0001720720","reported_name":"McFarland Mark Allen","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-27T22:34:26.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":true,"shares":325113,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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. The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award, plus an additional incentive based on the Company's market capitalization at vesting, as more fully set forth in the applicable award agreement. The number of shares in this row represents the actual level of performance (200%) plus the additional incentive shares described above. The reporting person's PSUs were granted on June 16, 2023 and they vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such PSUs settled in cash."}],"balance_after":400093,"source":{"system":"sec-edgar","filing":"0001628280-26-038578","document":"wk-form4_1779921263.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038578/wk-form4_1779921263.xml","form_type":"4"}},{"id":761266,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":40374,"kind":"person","name":"McFarland Mark Allen","position":1,"cik":"0001720720","reported_name":"McFarland Mark Allen","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-27T22:34:26.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":true,"shares":29752,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan. The reporting person's RSUs were granted on June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash."}],"balance_after":74980,"source":{"system":"sec-edgar","filing":"0001628280-26-038578","document":"wk-form4_1779921263.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038578/wk-form4_1779921263.xml","form_type":"4"}},{"id":762190,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43862,"kind":"person","name":"Berryman Brad","position":1,"cik":"0002028822","reported_name":"Berryman Brad","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"2023 Performance-Based Restricted Stock Units","published_at":"2026-05-27T22:34:05.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":false,"shares":227064,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"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. The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award, plus an additional incentive based on the Company's market capitalization at vesting, as more fully set forth in the applicable award agreement. The number of shares in this row represents the actual level of performance (200%) plus the additional incentive shares described above. The reporting person's PSUs were granted on June 16, 2023 and they vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such PSUs settled in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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. The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award, plus an additional incentive based on the Company's market capitalization at vesting, as more fully set forth in the applicable award agreement. The number of shares in this row represents the actual level of performance (200%) plus the additional incentive shares described above. The reporting person's PSUs were granted on June 16, 2023 and they vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such PSUs settled in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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. The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award, plus an additional incentive based on the Company's market capitalization at vesting, as more fully set forth in the applicable award agreement. The number of shares in this row represents the actual level of performance (200%) plus the additional incentive shares described above. The reporting person's PSUs were granted on June 16, 2023 and they vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such PSUs settled in cash."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":227064},"source":{"system":"sec-edgar","filing":"0001628280-26-038577","document":"wk-form4_1779921238.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/2028822/000162828026038577/wk-form4_1779921238.xml","form_type":"4"}},{"id":762189,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43862,"kind":"person","name":"Berryman Brad","position":1,"cik":"0002028822","reported_name":"Berryman Brad","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"2023 Restricted Stock Units","published_at":"2026-05-27T22:34:05.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":false,"shares":20780,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan. 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The reporting person's RSUs were granted on June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date, with 60% of the after-tax value of such RSUs settled in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan. 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The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award. The number of shares in this row represents the actual level of performance (200%). 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The number of PSUs that vest can range from 0% to 200% of the target number of PSUs subject to the award, plus an additional incentive based on the Company's market capitalization at vesting, as more fully set forth in the applicable award agreement. The number of shares in this row represents the actual level of performance (200%) plus the additional incentive shares described above. 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The reporting person's RSUs were granted on June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":4133},"source":{"system":"sec-edgar","filing":"0001628280-26-038564","document":"wk-form4_1779920960.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2029043/000162828026038564/wk-form4_1779920960.xml","form_type":"4"}},{"id":762193,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43863,"kind":"person","name":"Hyde Karen T","position":1,"cik":"0002029043","reported_name":"Hyde Karen T","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-27T22:29:24.000Z","date":"2026-05-22","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":1530,"price":324.21,"value":496041.3,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents a portion of the RSUs that vested on May 17, 2026 (1,530 of which were cash settled in an amount approximately equivalent to taxes associated with such vesting)."}],"balance_after":5206,"source":{"system":"sec-edgar","filing":"0001628280-26-038564","document":"wk-form4_1779920960.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2029043/000162828026038564/wk-form4_1779920960.xml","form_type":"4"}},{"id":762192,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43863,"kind":"person","name":"Hyde Karen T","position":1,"cik":"0002029043","reported_name":"Hyde Karen T","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-27T22:29:24.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":true,"shares":4133,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."}],"balance_after":6736,"source":{"system":"sec-edgar","filing":"0001628280-26-038564","document":"wk-form4_1779920960.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2029043/000162828026038564/wk-form4_1779920960.xml","form_type":"4"}},{"id":761251,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":25870,"kind":"person","name":"Nigro Joseph","position":1,"cik":"0001740087","reported_name":"Nigro Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"2023 Restricted Stock Units","published_at":"2026-05-27T22:28:53.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":false,"shares":4133,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":4133},"source":{"system":"sec-edgar","filing":"0001628280-26-038563","document":"wk-form4_1779920929.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038563/wk-form4_1779920929.xml","form_type":"4"}},{"id":761250,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":25870,"kind":"person","name":"Nigro Joseph","position":1,"cik":"0001740087","reported_name":"Nigro Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-27T22:28:53.000Z","date":"2026-05-22","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":1530,"price":324.21,"value":496041.3,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents a portion of the RSUs that vested on May 17, 2026 (1,530 of which were cash settled in an amount approximately equivalent to taxes associated with such vesting)."}],"balance_after":5206,"source":{"system":"sec-edgar","filing":"0001628280-26-038563","document":"wk-form4_1779920929.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038563/wk-form4_1779920929.xml","form_type":"4"}},{"id":761249,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":25870,"kind":"person","name":"Nigro Joseph","position":1,"cik":"0001740087","reported_name":"Nigro Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-27T22:28:53.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":true,"shares":4133,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."}],"balance_after":6736,"source":{"system":"sec-edgar","filing":"0001628280-26-038563","document":"wk-form4_1779920929.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038563/wk-form4_1779920929.xml","form_type":"4"}},{"id":761255,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":34508,"kind":"person","name":"Schwartzstein Christine Benson","position":1,"cik":"0001995618","reported_name":"Schwartzstein Christine Benson","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"2023 Restricted Stock Units","published_at":"2026-05-27T22:28:17.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":false,"shares":4133,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":4133},"source":{"system":"sec-edgar","filing":"0001628280-26-038562","document":"wk-form4_1779920894.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038562/wk-form4_1779920894.xml","form_type":"4"}},{"id":761254,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":34508,"kind":"person","name":"Schwartzstein Christine Benson","position":1,"cik":"0001995618","reported_name":"Schwartzstein Christine Benson","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-27T22:28:17.000Z","date":"2026-05-22","kind":"exercise","planned":false,"acquired":true,"shares":4133,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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 June 16, 2023 and the final installment of the reporting person's RSUs vested on May 17, 2026, the third anniversary of the vesting commencement date."}],"balance_after":6736,"source":{"system":"sec-edgar","filing":"0001628280-26-038562","document":"wk-form4_1779920894.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026038562/wk-form4_1779920894.xml","form_type":"4"}},{"id":874737,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43857,"kind":"person","name":"Muller Cole","position":1,"cik":"0002028529","reported_name":"Muller Cole","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:48:38.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":25934,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 10,374 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 15,560 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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 10,374 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 15,560 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."}],"balance_after":25934,"derivative":{"underlying":"Common Stock","underlying_shares":25934},"source":{"system":"sec-edgar","filing":"0001628280-26-013417","document":"wk-form4_1772491715.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028529/000162828026013417/wk-form4_1772491715.xml","form_type":"4"}},{"id":874736,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43857,"kind":"person","name":"Muller Cole","position":1,"cik":"0002028529","reported_name":"Muller Cole","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:48:38.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":5557,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents 2,222 RSUs that will vest on February 25, 2027, 2,223 RSUs that will vest on February 25, 2028 and 1,112 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents 2,222 RSUs that will vest on February 25, 2027, 2,223 RSUs that will vest on February 25, 2028 and 1,112 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."}],"balance_after":5557,"derivative":{"underlying":"Common Stock","underlying_shares":5557},"source":{"system":"sec-edgar","filing":"0001628280-26-013417","document":"wk-form4_1772491715.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028529/000162828026013417/wk-form4_1772491715.xml","form_type":"4"}},{"id":873881,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43796,"kind":"person","name":"Olagues Darren J","position":1,"cik":"0001408305","reported_name":"Olagues Darren J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Development Officer"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:48:32.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":16096,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"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."}],"balance_after":16096,"derivative":{"underlying":"Common Stock","underlying_shares":16096},"source":{"system":"sec-edgar","filing":"0001628280-26-013416","document":"wk-form4_1772491709.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1408305/000162828026013416/wk-form4_1772491709.xml","form_type":"4"}},{"id":873880,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43796,"kind":"person","name":"Olagues Darren J","position":1,"cik":"0001408305","reported_name":"Olagues Darren J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Development Officer"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:48:32.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":3450,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"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."}],"balance_after":3450,"derivative":{"underlying":"Common Stock","underlying_shares":3450},"source":{"system":"sec-edgar","filing":"0001628280-26-013416","document":"wk-form4_1772491709.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1408305/000162828026013416/wk-form4_1772491709.xml","form_type":"4"}},{"id":874739,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43858,"kind":"person","name":"Morice Christopher E","position":1,"cik":"0002028530","reported_name":"Morice Christopher E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:48:26.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":16096,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."}],"balance_after":16096,"derivative":{"underlying":"Common Stock","underlying_shares":16096},"source":{"system":"sec-edgar","filing":"0001628280-26-013415","document":"wk-form4_1772491704.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028530/000162828026013415/wk-form4_1772491704.xml","form_type":"4"}},{"id":874738,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43858,"kind":"person","name":"Morice Christopher E","position":1,"cik":"0002028530","reported_name":"Morice Christopher E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Commercial Officer"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:48:26.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":3450,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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."}],"balance_after":3450,"derivative":{"underlying":"Common Stock","underlying_shares":3450},"source":{"system":"sec-edgar","filing":"0001628280-26-013415","document":"wk-form4_1772491704.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028530/000162828026013415/wk-form4_1772491704.xml","form_type":"4"}},{"id":873507,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43741,"kind":"person","name":"SCHAEFER STEPHEN","position":1,"cik":"0001955735","reported_name":"SCHAEFER STEPHEN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:48:20.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":1118,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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, 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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."}],"balance_after":1118,"derivative":{"underlying":"Common Stock","underlying_shares":1118},"source":{"system":"sec-edgar","filing":"0001628280-26-013414","document":"wk-form4_1772491698.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026013414/wk-form4_1772491698.xml","form_type":"4"}},{"id":873506,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":40374,"kind":"person","name":"McFarland Mark Allen","position":1,"cik":"0001720720","reported_name":"McFarland Mark Allen","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:48:15.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":58420,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 23,368 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 35,052 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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 23,368 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 35,052 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."}],"balance_after":58420,"derivative":{"underlying":"Common Stock","underlying_shares":58420},"source":{"system":"sec-edgar","filing":"0001628280-26-013413","document":"wk-form4_1772491692.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026013413/wk-form4_1772491692.xml","form_type":"4"}},{"id":873505,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":40374,"kind":"person","name":"McFarland Mark Allen","position":1,"cik":"0001720720","reported_name":"McFarland Mark Allen","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:48:15.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":12519,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Represents 5,007 RSUs that will vest on February 25, 2027, 5,008 RSUs that will vest on February 25, 2028 and 2,504 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Represents 5,007 RSUs that will vest on February 25, 2027, 5,008 RSUs that will vest on February 25, 2028 and 2,504 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."}],"balance_after":12519,"derivative":{"underlying":"Common Stock","underlying_shares":12519},"source":{"system":"sec-edgar","filing":"0001628280-26-013413","document":"wk-form4_1772491692.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026013413/wk-form4_1772491692.xml","form_type":"4"}},{"id":874743,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43860,"kind":"person","name":"Wright Andrew M","position":1,"cik":"0002028524","reported_name":"Wright Andrew M","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Administrative Officer"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:48:09.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":16096,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"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."}],"balance_after":16096,"derivative":{"underlying":"Common Stock","underlying_shares":16096},"source":{"system":"sec-edgar","filing":"0001628280-26-013412","document":"wk-form4_1772491686.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2028524/000162828026013412/wk-form4_1772491686.xml","form_type":"4"}},{"id":874742,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43860,"kind":"person","name":"Wright Andrew M","position":1,"cik":"0002028524","reported_name":"Wright Andrew M","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Administrative Officer"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:48:09.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":3450,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"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."}],"balance_after":3450,"derivative":{"underlying":"Common Stock","underlying_shares":3450},"source":{"system":"sec-edgar","filing":"0001628280-26-013412","document":"wk-form4_1772491686.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028524/000162828026013412/wk-form4_1772491686.xml","form_type":"4"}},{"id":874745,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43861,"kind":"person","name":"Lebsack Dale E Jr.","position":1,"cik":"0002028467","reported_name":"Lebsack Dale E Jr.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Asset Dev. Officer"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:48:03.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":16096,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"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."}],"balance_after":16096,"derivative":{"underlying":"Common Stock","underlying_shares":16096},"source":{"system":"sec-edgar","filing":"0001628280-26-013411","document":"wk-form4_1772491680.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2028467/000162828026013411/wk-form4_1772491680.xml","form_type":"4"}},{"id":874744,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43861,"kind":"person","name":"Lebsack Dale E Jr.","position":1,"cik":"0002028467","reported_name":"Lebsack Dale E Jr.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Asset Dev. Officer"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:48:03.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":3450,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"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."}],"balance_after":3450,"derivative":{"underlying":"Common Stock","underlying_shares":3450},"source":{"system":"sec-edgar","filing":"0001628280-26-013411","document":"wk-form4_1772491680.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028467/000162828026013411/wk-form4_1772491680.xml","form_type":"4"}},{"id":874748,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43863,"kind":"person","name":"Hyde Karen T","position":1,"cik":"0002029043","reported_name":"Hyde Karen T","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:47:55.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":448,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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, 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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."}],"balance_after":448,"derivative":{"underlying":"Common Stock","underlying_shares":448},"source":{"system":"sec-edgar","filing":"0001628280-26-013410","document":"wk-form4_1772491672.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2029043/000162828026013410/wk-form4_1772491672.xml","form_type":"4"}},{"id":874741,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43859,"kind":"person","name":"Plagens Anthony J","position":1,"cik":"0002028528","reported_name":"Plagens Anthony J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Chief Accounting Officer"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:47:47.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":4400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 1,760 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 2,640 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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 1,760 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 2,640 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."}],"balance_after":4400,"derivative":{"underlying":"Common Stock","underlying_shares":4400},"source":{"system":"sec-edgar","filing":"0001628280-26-013409","document":"wk-form4_1772491664.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028528/000162828026013409/wk-form4_1772491664.xml","form_type":"4"}},{"id":874740,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43859,"kind":"person","name":"Plagens Anthony J","position":1,"cik":"0002028528","reported_name":"Plagens Anthony J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Chief Accounting Officer"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:47:47.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":1467,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents 586 RSUs that will vest on February 25, 2027, 587 RSUs that will vest on February 25, 2028 and 294 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents 586 RSUs that will vest on February 25, 2027, 587 RSUs that will vest on February 25, 2028 and 294 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."}],"balance_after":1467,"derivative":{"underlying":"Common Stock","underlying_shares":1467},"source":{"system":"sec-edgar","filing":"0001628280-26-013409","document":"wk-form4_1772491664.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028528/000162828026013409/wk-form4_1772491664.xml","form_type":"4"}},{"id":873504,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43742,"kind":"person","name":"Casulli Edward T.","position":1,"cik":"0002102527","reported_name":"Casulli Edward T.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Chief Nuclear Officer"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:47:40.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":10730,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 4,292 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 6,438 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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 4,292 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 6,438 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."}],"balance_after":10730,"derivative":{"underlying":"Common Stock","underlying_shares":10730},"source":{"system":"sec-edgar","filing":"0001628280-26-013408","document":"wk-form4_1772491656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026013408/wk-form4_1772491656.xml","form_type":"4"}},{"id":873503,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43742,"kind":"person","name":"Casulli Edward T.","position":1,"cik":"0002102527","reported_name":"Casulli Edward T.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Chief Nuclear Officer"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:47:40.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":3577,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents 1,430 RSUs that will vest on February 25, 2027, 1,431 RSUs that will vest on February 25, 2028 and 716 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents 1,430 RSUs that will vest on February 25, 2027, 1,431 RSUs that will vest on February 25, 2028 and 716 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."}],"balance_after":3577,"derivative":{"underlying":"Common Stock","underlying_shares":3577},"source":{"system":"sec-edgar","filing":"0001628280-26-013408","document":"wk-form4_1772491656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026013408/wk-form4_1772491656.xml","form_type":"4"}},{"id":873502,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":34508,"kind":"person","name":"Schwartzstein Christine Benson","position":1,"cik":"0001995618","reported_name":"Schwartzstein Christine Benson","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:47:31.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":448,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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, 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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."}],"balance_after":448,"derivative":{"underlying":"Common Stock","underlying_shares":448},"source":{"system":"sec-edgar","filing":"0001628280-26-013407","document":"wk-form4_1772491648.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026013407/wk-form4_1772491648.xml","form_type":"4"}},{"id":874747,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43862,"kind":"person","name":"Berryman Brad","position":1,"cik":"0002028822","reported_name":"Berryman Brad","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:47:22.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":16096,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."}],"balance_after":16096,"derivative":{"underlying":"Common Stock","underlying_shares":16096},"source":{"system":"sec-edgar","filing":"0001628280-26-013406","document":"wk-form4_1772491639.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028822/000162828026013406/wk-form4_1772491639.xml","form_type":"4"}},{"id":874746,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":43862,"kind":"person","name":"Berryman Brad","position":1,"cik":"0002028822","reported_name":"Berryman Brad","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:47:22.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":3450,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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 (the \"Committee\") pursuant to the terms of the Plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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."}],"balance_after":3450,"derivative":{"underlying":"Common Stock","underlying_shares":3450},"source":{"system":"sec-edgar","filing":"0001628280-26-013406","document":"wk-form4_1772491639.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028822/000162828026013406/wk-form4_1772491639.xml","form_type":"4"}},{"id":873583,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":37146,"kind":"person","name":"ABBAS GIZMAN I","position":1,"cik":"0001543090","reported_name":"ABBAS GIZMAN I","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:47:14.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":448,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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, 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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."}],"balance_after":448,"derivative":{"underlying":"Common Stock","underlying_shares":448},"source":{"system":"sec-edgar","filing":"0001628280-26-013405","document":"wk-form4_1772491631.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1543090/000162828026013405/wk-form4_1772491631.xml","form_type":"4"}},{"id":873501,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":20140,"kind":"person","name":"Horton Anthony R","position":1,"cik":"0001699604","reported_name":"Horton Anthony R","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:47:06.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":448,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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, 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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."}],"balance_after":448,"derivative":{"underlying":"Common Stock","underlying_shares":448},"source":{"system":"sec-edgar","filing":"0001628280-26-013403","document":"wk-form4_1772491622.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026013403/wk-form4_1772491622.xml","form_type":"4"}},{"id":873499,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":25870,"kind":"person","name":"Nigro Joseph","position":1,"cik":"0001740087","reported_name":"Nigro Joseph","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:46:58.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":448,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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, 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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents RSUs that, subject to the reporting person's continued service, will vest on February 25, 2027."}],"balance_after":448,"derivative":{"underlying":"Common Stock","underlying_shares":448},"source":{"system":"sec-edgar","filing":"0001628280-26-013402","document":"wk-form4_1772491614.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1622536/000162828026013402/wk-form4_1772491614.xml","form_type":"4"}},{"id":874264,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":30326,"kind":"person","name":"Nutt Terry L","position":1,"cik":"0001707031","reported_name":"Nutt Terry L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"2026 Performance-Based Restricted Stock Units","published_at":"2026-03-02T22:46:49.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":33086,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 13,234 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 19,852 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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Represents PSUs that will vest subject to the reporting person's (i) continued service and (ii) achievement of applicable performance goals. 13,234 of the PSUs will be eligible to vest based on performance as of February 25, 2028 and 19,852 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."}],"balance_after":33086,"derivative":{"underlying":"Common Stock","underlying_shares":33086},"source":{"system":"sec-edgar","filing":"0001628280-26-013401","document":"wk-form4_1772491606.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1707031/000162828026013401/wk-form4_1772491606.xml","form_type":"4"}},{"id":874263,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":30326,"kind":"person","name":"Nutt Terry L","position":1,"cik":"0001707031","reported_name":"Nutt Terry L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"2026 Restricted Stock Units","published_at":"2026-03-02T22:46:49.000Z","date":"2026-02-26","kind":"grant","planned":false,"acquired":true,"shares":7090,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Represents 2,836 RSUs that will vest on February 25, 2027, 2,836 RSUs that will vest on February 25, 2028 and 1,418 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Represents 2,836 RSUs that will vest on February 25, 2027, 2,836 RSUs that will vest on February 25, 2028 and 1,418 RSUs that will vest on February 25, 2029, in each case subject to the reporting person's continued service."}],"balance_after":7090,"derivative":{"underlying":"Common Stock","underlying_shares":7090},"source":{"system":"sec-edgar","filing":"0001628280-26-013401","document":"wk-form4_1772491606.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1707031/000162828026013401/wk-form4_1772491606.xml","form_type":"4"}},{"id":1084062,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":30326,"kind":"person","name":"Nutt Terry L","position":1,"cik":"0001707031","reported_name":"Nutt Terry L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CFO"}}],"security":"2023 Restricted Stock Units","published_at":"2025-07-21T20:02:45.000Z","date":"2025-07-18","kind":"exercise","planned":false,"acquired":false,"shares":20779,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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,\npar 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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Represents 20,779 RSUs that vested on July 10, 2025 and 20,780 RSUs that, subject to the reporting person's continued service, will vest on July 10, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Represents 20,779 RSUs that vested on July 10, 2025 and 20,780 RSUs that, subject to the reporting person's continued service, will vest on July 10, 2026."}],"balance_after":20780,"derivative":{"underlying":"Common Stock","underlying_shares":20779},"source":{"system":"sec-edgar","filing":"0001628280-25-035436","document":"wk-form4_1753128161.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1707031/000162828025035436/wk-form4_1753128161.xml","form_type":"4"}},{"id":1084061,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":30326,"kind":"person","name":"Nutt Terry L","position":1,"cik":"0001707031","reported_name":"Nutt Terry L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CFO"}}],"security":"Common Stock","published_at":"2025-07-21T20:02:45.000Z","date":"2025-07-18","kind":"tax_withholding","planned":false,"acquired":false,"shares":8177,"price":267.62,"value":2188328.74,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"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\nvesting of the RSUs."}],"balance_after":12602,"source":{"system":"sec-edgar","filing":"0001628280-25-035436","document":"wk-form4_1753128161.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1707031/000162828025035436/wk-form4_1753128161.xml","form_type":"4"}},{"id":1084060,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":30326,"kind":"person","name":"Nutt Terry L","position":1,"cik":"0001707031","reported_name":"Nutt Terry L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CFO"}}],"security":"Common Stock","published_at":"2025-07-21T20:02:45.000Z","date":"2025-07-18","kind":"exercise","planned":false,"acquired":true,"shares":20779,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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,\npar 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."}],"balance_after":20779,"source":{"system":"sec-edgar","filing":"0001628280-25-035436","document":"wk-form4_1753128161.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1707031/000162828025035436/wk-form4_1753128161.xml","form_type":"4"}},{"id":1099432,"issuer":{"id":3381,"kind":"organization","name":"Talen Energy Corp"},"owners":[{"id":77986,"kind":"person","name":"Wander John C","position":1,"cik":"0002028525","reported_name":"Wander John C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Gen. Counsel & Corp. Secretary"}}],"security":"2023 Restricted Stock Units","published_at":"2025-06-30T20:13:35.000Z","date":"2025-06-27","kind":"exercise","planned":false,"acquired":false,"shares":20779,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Represents 20,779 RSUs that vested on June 19, 2025 and 20,780 RSUs that, subject to the reporting person's continued service, will vest on June 19, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Represents 20,779 RSUs that vested on June 19, 2025 and 20,780 RSUs that, subject to the reporting person's continued service, will vest on June 19, 2026."}],"balance_after":20780,"derivative":{"underlying":"Common Stock","underlying_shares":20779},"source":{"system":"sec-edgar","filing":"0001628280-25-033500","document":"wk-form4_1751314408.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2028525/000162828025033500/wk-form4_1751314408.xml","form_type":"4"}}],"next_cursor":"2025-06-30T20:13:35.000000Z,1099432"}