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: Thomas Toby L. (Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-01	Common Stock	M	12622	—	Acquired	24792.562	Direct
2025-03-01	Common Stock	F	1567	$38.355	Disposed	23225.562	Direct
2025-03-01	Common Stock	D	10728	$38.355	Disposed	12497.562	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-01	RSU	$	M	12622	Disposed		Common Stock (12622)	Direct
2025-03-01	Phantom 3/25D	$	A	10728	Acquired		Common Stock (10728)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	255.37	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 in shares of common stock of FirstEnergy Corp. (the "Company") ("Share-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 shares withheld to cover tax obligations associated with the vesting of the 20PSUS21 award.

F4: In connection with the vesting of the Share-Settled RSUs on March 1, 2025, the reporting person's receipt of 10,728 shares of the Company's common stock was deferred, resulting in the reporting person receiving instead 10,728 shares of phantom stock pursuant to the Company's deferred compensation plan. The reporting person is therefore reporting the disposition of 10,728 shares of common stock in exchange for an equal number of shares of phantom stock.

F5: 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.

F6: Share-Based RSUs convert into the Company's common stock on a one-for-one basis.

F7: Each share of phantom stock represents a right to receive one share of the Company's common stock.

F8: The phantom stock becomes payable upon the reporting person's death, disability or termination of employment with the Company.