Sec Form 4/A Filing - Charletta Diana M @ Equitrans Midstream Corp - 2018-11-12

FORM 4/A 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 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 Charletta Diana M 2. Issuer Name and Ticker or Trading Symbol Equitrans Midstream Corp [ ETRN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President and COO (Last) (First) (Middle) 2200 ENERGY DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 11/12/2018 (Street) CANONSBURG, PA15317 4. If Amendment, Date Original Filed (MM/DD/YY) 11/14/2018 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Restricted Stock Units ( 1 ) 11/12/2018 A( 2 ) 547 ( 3 ) ( 4 ) ( 4 ) Common Stock 547 $ 0 547 I By Spouse Restricted Stock Units ( 1 ) 11/12/2018 A( 2 ) 726 ( 3 ) ( 5 ) ( 5 ) Common Stock 726 $ 0 726 I By Spouse Restricted Stock Units ( 1 ) 11/12/2018 A( 2 ) 586 ( 3 ) ( 6 ) ( 6 ) Common Stock 586 $ 0 586 I By Spouse

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Charletta Diana M 2200 ENERGY DRIVE CANONSBURG, PA15317 President and COO Signatures /s/ Tobin M. Nelson, Attorney-in-Fact for Diana M. Charletta 01/07/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each restricted stock unit represents a contingent right to receive in cash the economic equivalent of one share of Equitrans Midstream Corporation (ETRN) common stock. ( 2 )In connection with the spin-off of ETRN from EQT Corporation (EQT) on November 12, 2018, for each EQT restricted stock unit held by the spouse of the Reporting Person immediately prior to the spin-off, the spouse received 0.8 ETRN restricted stock units pursuant to the Employee Matters Agreement between ETRN and EQT. ( 3 )These shares held by the Reporting Person's spouse were inadvertently omitted from the Reporting Person's original Form 4. ( 4 )Restricted stock units vest 100% on January 1, 2020, which is the third anniversary of the original grant date of the corresponding award from EQT. ( 5 )Restricted stock units vest 100% in the first quarter of 2019. These restricted stock units correspond to confirmed performance awards under EQT's 2017 Value Driver Award Program. ( 6 )Restricted stock units vest 100% on January 1, 2021, which is the third anniversary of the original grant date of the corresponding award from EQT.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

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