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(the \"Company\"), any security holder of the Company., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."}],"balance_after":119552.374,"source":{"system":"sec-edgar","filing":"0001031296-26-000062","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000103129626000062/form4.xml","form_type":"4"}},{"id":869744,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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The satisfaction of the performance goals for the RSUs were certified by the Company's Board of Directors on February 11, 2026, as previously reported on a Form 4 filed on February 13, 2026, and the RSUs, which had remained subject to a continued service requirement, vested on March 1, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents the vesting of performance-adjusted restricted stock units (\"RSUs\"), each of which previously represented a contingent right to receive an RSU award payable 2/3 in shares of common stock of the Company (\"Share-Based RSUs\") and 1/3 in cash (\"Cash-Based RSUs\") following the vesting date. The satisfaction of the performance goals for the RSUs were certified by the Company's Board of Directors on February 11, 2026, as previously reported on a Form 4 filed on February 13, 2026, and the RSUs, which had remained subject to a continued service requirement, vested on March 1, 2026."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":66927.69},"source":{"system":"sec-edgar","filing":"0001031296-26-000056","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000103129626000056/form4.xml","form_type":"4"}},{"id":869742,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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The reporting person is therefore reporting the disposition of 22,344 shares of common stock in exchange for an equal number of shares of phantom stock."}],"balance_after":146352.374,"source":{"system":"sec-edgar","filing":"0001031296-26-000056","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000103129626000056/form4.xml","form_type":"4"}},{"id":869741,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. Jon Taylor","relationship":{"officer":true,"officer_title":"SVP, CFO and Strategy"}}],"security":"Common Stock","published_at":"2026-03-04T02:52:26.000Z","date":"2026-03-01","kind":"exercise","planned":false,"acquired":true,"shares":66927.69,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the vesting of performance-adjusted restricted stock units (\"RSUs\"), each of which previously represented a contingent right to receive an RSU award payable 2/3 in shares of common stock of the Company (\"Share-Based RSUs\") and 1/3 in cash (\"Cash-Based RSUs\") following the vesting date. The satisfaction of the performance goals for the RSUs were certified by the Company's Board of Directors on February 11, 2026, as previously reported on a Form 4 filed on February 13, 2026, and the RSUs, which had remained subject to a continued service requirement, vested on March 1, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The RSUs converted into shares of the Company's common stock on a one-for-one basis under the FirstEnergy Corp. 2020 Incentive Compensation Plan."}],"balance_after":208128.064,"source":{"system":"sec-edgar","filing":"0001031296-26-000056","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000103129626000056/form4.xml","form_type":"4"}},{"id":869737,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. 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The time-based restricted stock units were granted under the Company's 2020 Incentive Compensation Plan and will vest in full on March 1, 2029."}],"balance_after":141200.374,"source":{"system":"sec-edgar","filing":"0001031296-26-000056","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000103129626000056/form4.xml","form_type":"4"}},{"id":905740,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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As a result, these RSUs will vest on March 1, 2026, generally subject to the reporting person's continued service."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Represents performance-adjusted restricted stock units (\"RSUs\") granted March 1, 2023, each of which represents a contingent right to receive an award payable 2/3 in Company common stock and 1/3 in cash following the vesting date. This Form 4 is being filed to report the satisfaction of the performance goals for the RSUs, as certified by the Company's Board of Directors on February 11, 2026. As a result, these RSUs will vest on March 1, 2026, generally subject to the reporting person's continued service."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Represents performance-adjusted restricted stock units (\"RSUs\") granted March 1, 2023, each of which represents a contingent right to receive an award payable 2/3 in Company common stock and 1/3 in cash following the vesting date. This Form 4 is being filed to report the satisfaction of the performance goals for the RSUs, as certified by the Company's Board of Directors on February 11, 2026. As a result, these RSUs will vest on March 1, 2026, generally subject to the reporting person's continued service."}],"balance_after":66347.313,"derivative":{"underlying":"Common Stock","underlying_shares":66347.313},"source":{"system":"sec-edgar","filing":"0001031296-26-000034","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000103129626000034/form4.xml","form_type":"4"}},{"id":1125810,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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This transaction is being reported late due to an inadvertent administrative error and not any error of the Reporting Person."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Balance includes dividends accrued on time-based equity awards."}],"balance_after":129314.528,"source":{"system":"sec-edgar","filing":"0001127602-25-016652","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000112760225016652/form4.xml","form_type":"4"}},{"id":1154102,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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The satisfaction of the performance goals for the RSUs were certified by the Company's Board of Directors on February 5, 2025, as previously reported on a Form 4 filed on February 7, 2025, and the RSUs, which had remained subject to a continued service requirement, vested on March 1, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents the vesting of performance-adjusted restricted stock units (\"RSUs\"), each of which previously represented a contingent right to receive an RSU award payable 2/3 in shares of common stock of FirstEnergy Corp. (the \"Company\") (\"Share-Based RSUs\") and 1/3 in cash (\"Cash-Based RSUs\") following the vesting date. The satisfaction of the performance goals for the RSUs were certified by the Company's Board of Directors on February 5, 2025, as previously reported on a Form 4 filed on February 7, 2025, and the RSUs, which had remained subject to a continued service requirement, vested on March 1, 2025."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":41105.846},"source":{"system":"sec-edgar","filing":"0001127602-25-008125","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000112760225008125/form4.xml","form_type":"4"}},{"id":1230933,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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The reporting person is therefore reporting the disposition of 13,730 shares of common stock in exchange for an equal number of shares of phantom stock."}],"balance_after":111919.008,"source":{"system":"sec-edgar","filing":"0001127602-25-008125","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000112760225008125/form4.xml","form_type":"4"}},{"id":1230932,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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The RSUP19 award was previously granted for $0.00 consideration under the FirstEnergy Corp. 2007 Incentive Plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The amount listed in Table II represents the vesting of the RSUP19 award. The award vested on March 1, 2017. The shares coded \"F\" were automatically withheld to cover income tax obligations associated with the payout. Amounts also include dividend reinvestment."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The amount listed in Table II represents the vesting of the RSUP19 award. The award vested on March 1, 2017. The shares coded \"F\" were automatically withheld to cover income tax obligations associated with the payout. Amounts also include dividend reinvestment."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":14358.16},"source":{"system":"sec-edgar","filing":"0001127602-17-010228","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000112760217010228/form4.xml","form_type":"4"}},{"id":4405274,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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Amounts also include dividend reinvestment."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Balance includes shares acquired through dividend reinvestment."}],"balance_after":7632.876,"source":{"system":"sec-edgar","filing":"0001127602-17-010228","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000112760217010228/form4.xml","form_type":"4"}},{"id":4405273,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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The phantom stock becomes payable in cash upon retirement or other termination of employment under arrangements approved by the Compensation Committee."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Balance includes shares acquired through dividend reinvestment."}],"balance_after":8293.352,"source":{"system":"sec-edgar","filing":"0001127602-17-010228","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000112760217010228/form4.xml","form_type":"4"}},{"id":4405272,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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The RSUP19 award was previously granted for $0.00 consideration under the FirstEnergy Corp. 2007 Incentive Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Balance includes shares acquired through dividend reinvestment."}],"balance_after":21991.036,"source":{"system":"sec-edgar","filing":"0001127602-17-010228","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000112760217010228/form4.xml","form_type":"4"}},{"id":4414756,"issuer":{"id":3171,"kind":"organization","name":"FIRSTENERGY CORP","symbol":"FE"},"owners":[{"id":61346,"kind":"person","name":"K. Jon Taylor","position":1,"cik":"0001575883","reported_name":"K. 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Performance targets were achieved, so the award will be paid out at a performance rate of 162%."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"The Board approved the performance results for the performance-adjusted restricted stock unit grant (RSUP19), and this award will vest on March 1, 2017. Performance targets were achieved, so the award will be paid out at a performance rate of 162%."}],"balance_after":14197,"derivative":{"exercise_date":"2017-03-01","expiration_date":"2017-03-01","underlying":"Common Stock","underlying_shares":14197},"source":{"system":"sec-edgar","filing":"0001127602-17-007693","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1031296/000112760217007693/form4.xml","form_type":"4"}}]}