FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * CAVALIER LYNNETTE M   2. Issuer Name and Ticker or Trading Symbol FIRSTENERGY CORP [FE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Human Resource Officer (Last) (First) (Middle) 76 SOUTH MAIN STREET 3. Date of Earliest Transaction (Month/Day/Year) 02/21/2017 (Street) AKRON, OH 44308 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock               53,158.037 D   Common Stock               713.484 (1) I By Savings Plan

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

RSUP19

(2)

02/21/2017

A

24,348 (3)

03/01/2017

03/01/2017

Common Stock

24,348

$ 0

24,348 (3)

D

Phantom / Retirement

(2)

(4)

(4)

Common Stock

19,452.731

19,452.731 (5)

D

Phantom 3/05d Retirement

(2)

(4)

(4)

Common Stock

5,835.265

5,835.265 (5)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
CAVALIER LYNNETTE M 76 SOUTH MAIN STREET AKRON, OH 44308			Chief Human Resource Officer

Signatures

Jennifer L. Geyer, attorney-in-fact		02/22/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	FE's 401(k) Savings Plan includes a unitized fund invested in FE stock, 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) Plan in this row is an estimate of the number of shares of FE's common stock held in the unitized stock fund and allocated to the reporting person's account as of January 31, 2017.
(2)	1 for 1
(3)	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%.
(4)	This holding reflects phantom stock payable in cash upon retirement or other termination of employment under the FirstEnergy Corp. Executive Deferred Compensation Plan. Each share of phantom stock is the economic equivalent of one share of common stock.
(5)	Includes stock units acquired through dividend reinvestment.
Remarks: Exhibit 24: Power of Attorney (attached)

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