Sec Form 4 Filing - MATLIN DAVID J @ U.S. WELL SERVICES, INC. - 2020-06-19

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 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 MATLIN DAVID J 2. Issuer Name and Ticker or Trading Symbol U.S. WELL SERVICES, INC. [ USWS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1360 POST OAK BOULEVARD, SUITE 1800 3. Date of Earliest Transaction (MM/DD/YY) 06/19/2020 (Street) HOUSTON, TX77056 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Series B Redeemable Convertible Preferred Stock ( 1 ) 06/19/2020 S( 2 ) 200 ( 3 ) ( 4 ) Class A Common Stock ( 5 ) ( 1 ) 1,678 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other MATLIN DAVID J 1360 POST OAK BOULEVARD, SUITE 1800 HOUSTON, TX77056 X X Signatures /s/ David J. Matlin 06/23/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each share (a "Series B Preferred Share") of Series B Redeemable Convertible Preferred Stock, par value $0.0001 per share (the "Series B Preferred Stock"), is convertible into a number of shares of Class A Common Stock equal to (i) the Liquidation Preference (as defined in the Certificate of Designations of the Series B Preferred Stock (the "Certificate of Designations")) as of the date of conversion divided by (ii) the then applicable Conversion Price (as defined in the Certificate of Designations). The Liquidation Preference was approximately $1,017.75 as of June 19, 2020 and June 23, 2020 and is subject to increase as provided in the Certificate of Designations if the Issuer does not pay quarterly dividends on the Series B Preferred Stock in cash. The Conversion Price is initially $0.308 and is subject to adjustment in certain circumstances as provided in the Certificate of Designations. ( 2 )On June 19, 2020, the Reporting Person sold 200 Series B Preferred Shares in a privately negotiated transaction for an aggregate sales price of $200,000 in cash. ( 3 )Subject to the terms and conditions of the Certificate of Designations, the Reporting Person may, at his option at any time, convert all or a portion of the Series B Preferred Shares into shares of Class A Common Stock. ( 4 )The Series B Preferred Shares do not have an expiration date, provided that in certain circumstances on or after April 1, 2023, the Issuer may, at its option, convert all or a portion of the Series B Preferred Shares at the same conversion rate described in (1) above. In addition, at any time on or after October 1, 2021, the Issuer may, at its option, redeem all or a portion of the Series B Preferred Shares at a redemption price equal to the then applicable Liquidation Preference described in (1) above, provided that the Reporting Person may, at his option, convert his shares as described above within five business days of receipt of the notice of redemption. ( 5 )The number of shares of Class A Common Stock into which the Series B Preferred Shares are convertible is calculated as described in (1) above. Based upon the Liquidation Preference and Conversion Price specified in (1) above, 5,544,774 shares of Class A Common Stock were issuable as of June 19, 2020 and June 23, 2020 upon conversion of the 1,678 Series B Preferred Shares held by the Reporting Person.

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).

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