Sec Form 4 Filing - Bender Scott @ Cactus, Inc. - 2021-05-25

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 Bender Scott 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) President and CEO (Last) (First) (Middle) 920 MEMORIAL CITY WAY, SUITE 300 3. Date of Earliest Transaction (MM/DD/YY) 05/25/2021 (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 05/25/2021 A( 1 ) 50,000 A 15,326,801 I See Footnote ( 2 ) Class B Common Stock 05/25/2021 J( 1 ) 50,000 D 15,276,801 I See Footnote ( 2 ) ( 4 ) Class A Common Stock 05/25/2021 J( 5 ) 50,000 A 120,464 D Class A Common Stock 05/26/2021 S 50,000 D $ 34.3468 70,464 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 Units ( 6 ) ( 7 ) ( 8 ) 05/25/2021 A( 1 ) 50,000 ( 7 )( 8 ) ( 7 )( 8 ) Class A Common Stock 50,000 ( 9 ) 15,326,801 I See Footnote ( 2 ) Units ( 6 ) ( 7 ) ( 8 ) 05/25/2021 J( 3 ) 50,000 ( 7 )( 8 ) ( 7 )( 8 ) Class A Common Stock 50,000 ( 9 ) 15,276,801 I See Footnote ( 2 ) ( 4 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Bender Scott 920 MEMORIAL CITY WAY, SUITE 300 HOUSTON, TX77024 X X President and CEO Signatures /s/ Scott Bender, by David Isaac as Attorney-in-Fact 05/27/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )SJB BIC LP, a Texas limited partnership controlled by the Reporting Person, redeemed a portion of its ownership interest in Cactus WH Enterprises, LLC ("Cactus Enterprises") pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises. In connection with the redemption of interest in Cactus Enterprises, Cactus Enterprises distributed to SJB BIC LP, 50,000 Units (as defined below) and a corresponding number of shares of Class B Common Stock of the Issuer. ( 2 )The securities reported herein are directly owned by 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 )In connection with the redemption of Units, as described below, SJB BIC LP disposed of a corresponding number of shares of Class B Common Stock, which shares were cancelled by the Issuer. ( 4 )Following the transaction reported herein, the Reporting Person is deemed to beneficially own 15,276,801 shares of Class B Common Stock and 15,276,801 Units owned by Cactus Enterprises. ( 5 )In connection with the redemption of Units, as described below, SJB BIC LP acquired 50,000 shares of Class A Common Stock. ( 6 )"Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC. ( 7 )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 (the "Redemption Right"). The Reporting Person exercised his Redemption Right with respect to Units owned by him. ( 8 )Upon the exercise of the Redemption Right, the Issuer (instead of Cactus LLC) has the right to acquire each tendered Unit directly from the exchanging Unit holder for, at its 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. The Issuer exercised its Call Right and acquired the tendered Units (and a corresponding number of shares of Class B Common Stock) in return for Shares of Class A Common Stock. ( 9 )The Units were redeemed for Class A Common Stock on May 25, 2021.

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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