FIRSTENERGY CORP — Director's Dealing 2025

Mar 5, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FIRSTENERGY CORP (FE)
CIK: 0001031296
Period of Report: 2025-03-01

Reporting Person: K. Jon Taylor (SVP, CFO and Strategy)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-01	Common Stock	M	41105.846	—	Acquired	136737.854	Direct
2025-03-01	Common Stock	A	13967	—	Acquired	150704.854	Direct
2025-03-01	Common Stock	F	11409	$38.355	Disposed	139295.854	Direct
2025-03-01	Common Stock	D	13646.846	$38.355	Disposed	125649.008	Direct
2025-03-01	Common Stock	D	13730	$38.355	Disposed	111919.008	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-01	RSU	$	M	41105.846	Disposed		Common Stock (41105.846)	Direct
2025-03-01	Phantom 3/25D	$	A	13730	Acquired		Common Stock (13730)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5008.243	Indirect

Footnotes

F1: 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.

F2: 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.

F3: Represents the vesting of a time-based restricted stock award granted to the reporting person on March 1, 2023, which vested 25% on March 1, 2025.

F4: Represents shares of common stock of the Company withheld to cover tax obligations associated with the vesting of the RSUs and restricted stock award described in footnotes 1 and 3, respectively, which transaction is exempt under Rule 16b-3.

F5: On March 1, 2025, the Cash-Based RSUs were settled based on an average of the Company's high and low stock price, net of applicable tax withholding obligations

F6: In connection with the vesting of the Share-Settled RSUs on March 1, 2025, the reporting person's receipt of 13,730 shares of the Company's common stock was deferred, resulting in the reporting person receiving instead 13,730 shares of phantom stock pursuant to the Company's deferred compensation plan. 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.

F7: The Company's 401(k) Savings Plan includes a unitized fund invested in shares of common stock of the Company, in which the reporting person may invest, and includes dividend reinvestment and company match features. The number of shares reported as indirectly held in the 401(K) Savings Plan in this row is an estimate of the number of shares of the Company's common stock held in the unitized stock fund since the reporting person's last filed Form 4 and as allocated to the reporting person's account as of February 28, 2025.

F8: Share-Based RSUs convert into the Company's common stock on a one-for-one basis.

F9: Each share of phantom stock represents a right to receive one share of the Company's common stock.

F10: The phantom stock becomes payable upon the reporting person's death, disability or termination of employment with the Company.