Sec Form 4 Filing - THRC Holdings, LP @ U.S. WELL SERVICES, INC. - 2021-06-30

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 THRC Holdings, LP 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) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 17018 INTERSTATE 20 3. Date of Earliest Transaction (MM/DD/YY) 06/30/2021 (Street) CISCO, TX76437 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 Class A Common Stock ( 1 ) 06/30/2021 P 200,909 A $ 1 200,909 D

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 16.0% Convertible Senior Secured PIK ( 1 ) ( 2 ) ( 3 ) 07/01/2021 S 06/24/2021 ( 2 ) Class A Common Stock 12,755,102 ( 4 ) ( 3 ) $ 12,500,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other THRC Holdings, LP 17018 INTERSTATE 20 CISCO, TX76437 X THRC Management, LLC 17018 INTERSTATE 20 CISCO, TX76437 X Wilks Dan H. 17018 INTERSTATE 20 CISCO, TX76437 X Wilks Staci 17018 INTERSTATE 20 CISCO, TX76437 X Signatures /s/ Matthew Wilks, as attorney-in-fact 07/06/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )THRC Holdings LP ("Holdings"), a Texas limited partnership, directly holds the securities of the Issuer. THRC Management, LLC ("Management") a Texas limited liability company, as General Partner of Holdings, has exclusive voting and investment power over the shares of Issuer's Common Stock held by Holdings, and therefore, may be deemed to beneficially own such shares. Dan H. Wilks, as sole Manager of Management, together with his spouse, Staci Wilks, who share the same household, may be deemed to exercise voting and investment power over the securities directly owned by Holdings, and therefore, may be deemed to beneficially own such shares. Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of its respective pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4. ( 2 )As reported on the Form 3 previously filed by the Reporting Persons, Holdings purchased an aggregate of $25,000,000 in principal amount of 16.0% Convertible Senior Secured (Third Lien) PIK Notes of the Issuer (the "Notes"), that are convertible into shares of Class A Common Stock, pursuant to the Note Purchase Agreement, dated June 24, 2021, by and among the Issuer, Holdings and the other purchasers party thereto (the "Note Purchase Agreement"). The Notes are convertible by Holdings at any time prior to the payment in full of all outstanding principle and interest due under the Notes. ( 3 )All or any portion of the Notes may be converted at the election of the holder thereof at any time into a number of shares Class A Common Stock, determined by dividing (a) the outstanding balance of the principal amount of the Notes being converted (together with the accrued but unpaid interest thereon) as of the applicable conversion date, by (b) a conversion price of $0.98, which such conversion price is subject to certain anti-dilution adjustments in accordance with its terms. ( 4 )This number represents the number of shares of Class A Common Stock issuable upon conversion of the Notes if the holder thereof elects to convert the Notes based on the principal amount of the Notes and the conversion price applicable to the Notes.

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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