Ownership Submission
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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Mikkelsen Eileen
  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)
VP, Rates & Regulatory Affairs
(Last)
(First)
(Middle)
76 S. MAIN ST.
3. Date of Earliest Transaction (Month/Day/Year)
03/01/2019
(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 03/01/2019   M   617.358 (1) A (2) 17,188.592 (3) D  
Common Stock 03/01/2019   D   617.358 (1) D $ 40.73 16,571.234 (3) D  
Common Stock 03/01/2019   M   2,101 (4) A (2) 18,672.234 (3) D  
Common Stock 03/01/2019   F   638 (4) D $ 40.73 18,034.234 (3) D  
Common Stock 03/01/2019   M   187.571 (5) A (6) 18,221.805 (3) D  
Common Stock 03/01/2019   D   26.571 (7) D $ 40.9 18,195.234 (3) D  
Common Stock 03/01/2019   F   42 (5) D $ 40.9 18,153.234 (3) D  
Common Stock               2,929.402 (8) I By Savings Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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
RSUC16 (6) 03/01/2019   M     617.358   (1)   (1) Common Stock 617.358 (2) 0 D  
RSUS16 (6) 03/01/2019   M     2,101   (4)   (4) Common Stock 2,101 (2) 0 D  
Phantom 3/16D (6) 03/01/2019   M     187.571 03/01/2019 03/01/2019 Common Stock 187.571 (6) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Mikkelsen Eileen
76 S. MAIN ST.
AKRON, OH 44308
      VP, Rates & Regulatory Affairs  

Signatures

 Daniel M. Dunlap, attorney-in-fact   03/05/2019
**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) Represents the vesting of the RSUC16 award. The award vested on March 1, 2019. Amounts also include dividend reinvestment.
(2) 1 for 1. The RSUS16 and RSUC16 awards were previously granted for $0.00 under the FirstEnergy Corp. 2015 Incentive Compensation Plan.
(3) Balance includes restricted stock and shares acquired through dividend reinvestment.
(4) Represents the vesting of the RSUS16 award. The award vested on March 1, 2019. The shares coded "F" were automatically withheld to cover tax obligations associated with the payout. Amounts also include dividend reinvestment.
(5) These transactions reflect the conversion of stock originally deferred for three years and dividend equivalents accrued during that time, and credited to the FirstEnergy Corp. Amended and Restated Executive Deferred Compensation Plan's Phantom 3/16D account, to directly-held common stock. The shares coded as "F" were automatically withheld to cover tax obligations.
(6) 1 for 1
(7) Dividend equivalents that accrue after January 1, 2014 on shares held in the Phantom 3/16D account are paid in cash under the terms of the FirstEnergy Corp. Amended and Restated Executive Deferred Compensation Plan.
(8) 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, 2019.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.