Sec Form 5 Filing - Bender Joel @ Cactus, Inc. - 2020-12-31

FORM 5 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 Bender Joel 2. Issuer Name and Ticker or Trading Symbol Cactus, Inc. [ WHD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) Senior VP & COO (Last) (First) (Middle) 920 MEMORIAL CITY WAY, SUITE 300 3. Date of Earliest Transaction (MM/DD/YY) 12/31/2020 (Street) HOUSTON, TX77024 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 Class B Common Stock 10/31/2020 G V 0 ( 1 ) D $ 0 17,631,734 I See Footnote ( 2 )

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 Units ( 1 ) ( 3 ) 10/31/2020 G V 0 ( 1 ) ( 3 ) ( 3 ) Class A Common Stock 0 ( 1 ) ( 3 ) $ 0 17,631,734 I See Footnote ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Bender Joel 920 MEMORIAL CITY WAY, SUITE 300 HOUSTON, TX77024 X X Senior VP & COO Signatures /s/ Joel Bender, by David Isaac as Attorney-in-Fact 02/16/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On October 31, 2020, the Reporting Person gifted non-voting shares in an entity through which he and a member of his immediate family indirectly beneficially owns shares of Class B Common Stock of the Issuer and units representing limited liability company interests ("Units") in Cactus Wellhead, LLC ("Cactus LLC"), an entity in which the Issuer is the sole managing member, to trusts established for the benefit of the reporting person's children. The reported transactions did not transfer voting or investment power over the Class B Common Stock or Units, and therefore, the number of shares of Class B Common Stock and Units deemed beneficially owned by the Reporting Person remains unchanged. ( 2 )The securities reported herein are directly owned by Cactus WH Enterprises, LLC ("Cactus Enterprises"). By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Reporting Person may be deemed to have an indirect pecuniary interest in the securities held directly by Cactus Enterprises through his ownership interest in Cactus Enterprises. In accordance with Instruction 4(b)(iv), the entire amount of the securities held by Cactus Enterprises is reported herein. The Reporting Person disclaims beneficial ownership of any securities that he does not directly own, except to the extent of his indirect pecuniary interest therein. This report shall not be deemed an admission that the Reporting Person is a member of a group or the beneficial owner of any securities not directly owned by the Reporting Person. ( 3 )The first amended and restated limited liability company operating agreement of Cactus LLC provides the holders of Units with certain rights to cause Cactus LLC to acquire all or at least a minimum portion of their Units for, at Cactus LLC's election, (x) shares of Class A Common Stock at a redemption ratio of one share of Class A Common Stock for each Unit redeemed, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions, or (y) an equivalent amount of cash.

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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