WHD

SEC source: 0001699136-22-000086 · wf-form4_165299460060000.xml · nonDerivative · entry 2

Bender Joel · CIK 0001701689 · Director · Senior VP & COO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,657,768

F1 · kind: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F1 · price: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

SEC source: 0001699136-22-000087 · wf-form4_165299462367136.xml · derivative · entry 4

Bender Scott · CIK 0001701688 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,657,768

Underlying: Class A Common Stock · 13,613 shares

Expires not disclosed

F3 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F4 · derivative.exercise_price: 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.

F5 · kind: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F5 · price: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F4 · derivative.exercise_date: 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.

F5 · derivative.expiration_date: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

F5 · ownership.nature: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

SEC source: 0001699136-22-000087 · wf-form4_165299462367136.xml · nonDerivative · entry 2

Bender Scott · CIK 0001701688 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,657,768

F1 · kind: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F1 · price: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

SEC source: 0001699136-22-000088 · wf-form4_165299466146444.xml · derivative · entry 3

Cactus WH Enterprises, LLC · CIK 0001701768 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,671,381

Underlying: Class A Common Stock · 89,960 shares

Expires not disclosed

F2 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F3 · derivative.exercise_price: 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.

F4 · kind: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Units to such members.

F4 · price: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Units to such members.

F3 · derivative.exercise_date: 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.

F4 · derivative.expiration_date: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Units to such members.

SEC source: 0001699136-22-000088 · wf-form4_165299466146444.xml · nonDerivative · entry 1

Cactus WH Enterprises, LLC · CIK 0001701768 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,671,381

F1 · kind: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Class B Common Stock to such members.

F1 · price: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Class B Common Stock to such members.

SEC source: 0001699136-22-000096 · wf-form4_165299513637192.xml · derivative · entry 5

MCGOVERN MICHAEL Y · CIK 0001259039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 24,024 shares

Expires not disclosed

F2 · security: "Units" mean ownership interests in Cactus LLC. The Company is the sole managing member of Cactus LLC.

F3 · derivative.exercise_price: The Cactus Wellhead LLC Agreement 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.

F4 · derivative.exercise_price: 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.

F1 · kind: On May 17, 2022, the Reporting Person redeemed 24,024 units representing limited liability interests ("Units") in Cactus Wellhead, LLC ("Cactus LLC") pursuant to the First Amended and Restated Limited Liability Company Operating Agreement of Cactus LLC (the "Cactus Wellhead LLC Agreement"). In connection with this redemption, Cactus LLC cancelled 24,024 Units, and Cactus, Inc (the "Company) cancelled a corresponding number of shares of its Class B Common Stock and issued to the Reporting Person 24,024 shares of Class A Common Stock.

F1 · price: On May 17, 2022, the Reporting Person redeemed 24,024 units representing limited liability interests ("Units") in Cactus Wellhead, LLC ("Cactus LLC") pursuant to the First Amended and Restated Limited Liability Company Operating Agreement of Cactus LLC (the "Cactus Wellhead LLC Agreement"). In connection with this redemption, Cactus LLC cancelled 24,024 Units, and Cactus, Inc (the "Company) cancelled a corresponding number of shares of its Class B Common Stock and issued to the Reporting Person 24,024 shares of Class A Common Stock.

F3 · derivative.exercise_date: The Cactus Wellhead LLC Agreement 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.

F4 · derivative.exercise_date: 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.

F3 · derivative.expiration_date: The Cactus Wellhead LLC Agreement 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.

F4 · derivative.expiration_date: 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.

SEC source: 0001699136-22-000096 · wf-form4_165299513637192.xml · nonDerivative · entry 3

MCGOVERN MICHAEL Y · CIK 0001259039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,300

SEC source: 0001699136-22-000096 · wf-form4_165299513637192.xml · nonDerivative · entry 2

MCGOVERN MICHAEL Y · CIK 0001259039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,399

F1 · kind: On May 17, 2022, the Reporting Person redeemed 24,024 units representing limited liability interests ("Units") in Cactus Wellhead, LLC ("Cactus LLC") pursuant to the First Amended and Restated Limited Liability Company Operating Agreement of Cactus LLC (the "Cactus Wellhead LLC Agreement"). In connection with this redemption, Cactus LLC cancelled 24,024 Units, and Cactus, Inc (the "Company) cancelled a corresponding number of shares of its Class B Common Stock and issued to the Reporting Person 24,024 shares of Class A Common Stock.

F1 · price: On May 17, 2022, the Reporting Person redeemed 24,024 units representing limited liability interests ("Units") in Cactus Wellhead, LLC ("Cactus LLC") pursuant to the First Amended and Restated Limited Liability Company Operating Agreement of Cactus LLC (the "Cactus Wellhead LLC Agreement"). In connection with this redemption, Cactus LLC cancelled 24,024 Units, and Cactus, Inc (the "Company) cancelled a corresponding number of shares of its Class B Common Stock and issued to the Reporting Person 24,024 shares of Class A Common Stock.

SEC source: 0001699136-22-000096 · wf-form4_165299513637192.xml · nonDerivative · entry 1

MCGOVERN MICHAEL Y · CIK 0001259039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · price: On May 17, 2022, the Reporting Person redeemed 24,024 units representing limited liability interests ("Units") in Cactus Wellhead, LLC ("Cactus LLC") pursuant to the First Amended and Restated Limited Liability Company Operating Agreement of Cactus LLC (the "Cactus Wellhead LLC Agreement"). In connection with this redemption, Cactus LLC cancelled 24,024 Units, and Cactus, Inc (the "Company) cancelled a corresponding number of shares of its Class B Common Stock and issued to the Reporting Person 24,024 shares of Class A Common Stock.

SEC source: 0001699136-22-000086 · wf-form4_165299460060000.xml · derivative · entry 5

Bender Joel · CIK 0001701689 · Director · Senior VP & COO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,671,381

Underlying: Class A Common Stock · 89,960 shares

Expires not disclosed

F3 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F4 · derivative.exercise_price: 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.

F5 · kind: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F5 · price: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F4 · derivative.exercise_date: 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.

F5 · derivative.expiration_date: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

F5 · ownership.nature: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

SEC source: 0001699136-22-000086 · wf-form4_165299460060000.xml · nonDerivative · entry 3

Bender Joel · CIK 0001701689 · Director · Senior VP & COO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 799,724

SEC source: 0001699136-22-000086 · wf-form4_165299460060000.xml · nonDerivative · entry 1

Bender Joel · CIK 0001701689 · Director · Senior VP & COO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,671,381

F1 · kind: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F1 · price: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

SEC source: 0001699136-22-000087 · wf-form4_165299462367136.xml · derivative · entry 3

Bender Scott · CIK 0001701688 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,671,381

Underlying: Class A Common Stock · 89,960 shares

Expires not disclosed

F3 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F4 · derivative.exercise_price: 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.

F5 · kind: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F5 · price: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F4 · derivative.exercise_date: 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.

F5 · derivative.expiration_date: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

F5 · ownership.nature: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

SEC source: 0001699136-22-000087 · wf-form4_165299462367136.xml · nonDerivative · entry 1

Bender Scott · CIK 0001701688 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,671,381

F1 · kind: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F1 · price: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

SEC source: 0001699136-22-000082 · wf-form4_165291286096360.xml · nonDerivative · entry 1

Semple Alan · CIK 0001701710 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,035

SEC source: 0001699136-22-000064 · wf-form4_164884830119301.xml · derivative · entry 2

Cactus WH Enterprises, LLC · CIK 0001701768 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,761,341

Underlying: Class A Common Stock · 253,622 shares

Expires not disclosed

F2 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F3 · derivative.exercise_price: 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.

F4 · kind: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Units to such members.

F4 · price: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Units to such members.

F3 · derivative.exercise_date: 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.

F4 · derivative.expiration_date: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Units to such members.

SEC source: 0001699136-22-000064 · wf-form4_164884830119301.xml · nonDerivative · entry 1

Cactus WH Enterprises, LLC · CIK 0001701768 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,761,341

F1 · kind: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Class B Common Stock to such members.

F1 · price: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Class B Common Stock to such members.

SEC source: 0001699136-22-000063 · wf-form4_164884828182079.xml · derivative · entry 2

Bender Scott · CIK 0001701688 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,761,341

Underlying: Class A Common Stock · 253,622 shares

Expires not disclosed

F3 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F4 · derivative.exercise_price: 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.

F5 · kind: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F5 · price: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F4 · derivative.exercise_date: 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.

F5 · derivative.expiration_date: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

F5 · ownership.nature: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

SEC source: 0001699136-22-000063 · wf-form4_164884828182079.xml · nonDerivative · entry 1

Bender Scott · CIK 0001701688 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,761,341

F1 · kind: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F1 · price: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

SEC source: 0001699136-22-000062 · wf-form4_164884825378447.xml · derivative · entry 2

Bender Joel · CIK 0001701689 · Director · Senior VP & COO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,761,341

Underlying: Class A Common Stock · 253,622 shares

Expires not disclosed

F3 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F4 · derivative.exercise_price: 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.

F5 · kind: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F5 · price: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F4 · derivative.exercise_date: 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.

F5 · derivative.expiration_date: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

F5 · ownership.nature: In connection with certain redemptions of ownership interests in Cactus Enterprises by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Units to such members. The Reporting Person did not participate in the redemptions, and no Units were distributed to the Reporting Person or any entities controlled by the Reporting Person.

SEC source: 0001699136-22-000062 · wf-form4_164884825378447.xml · nonDerivative · entry 1

Bender Joel · CIK 0001701689 · Director · Senior VP & COO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,761,341

F1 · kind: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F1 · price: In connection with certain redemptions of ownership interests in Cactus WH Enterprises, LLC ("Cactus Enterprises") by certain of Cactus Enterprises' members pursuant to the first amended and restated limited liability company agreement of Cactus Enterprises, Cactus Enterprises distributed Class B Common Stock to such members. The Reporting Person did not participate in the redemptions, and no shares of Class B Common Stock were distributed to the Reporting Person or any entities controlled by the Reporting Person.

F2 · ownership.nature: 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.

SEC source: 0001699136-22-000050 · wf-form4_164738964870861.xml · nonDerivative · entry 7

Bender Joel · CIK 0001701689 · Director · Senior VP & COO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 814,875

SEC source: 0001699136-22-000051 · wf-form4_164738967193244.xml · nonDerivative · entry 7

Bender Scott · CIK 0001701688 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 817,480

SEC source: 0001699136-22-000052 · wf-form4_164738969862725.xml · nonDerivative · entry 6

Bender Steven · CIK 0001701687 · VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,879

SEC source: 0001699136-22-000050 · wf-form4_164738964870861.xml · nonDerivative · entry 6

Bender Joel · CIK 0001701689 · Director · Senior VP & COO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 831,143

SEC source: 0001699136-22-000051 · wf-form4_164738967193244.xml · nonDerivative · entry 6

Bender Scott · CIK 0001701688 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 833,748

SEC source: 0001699136-22-000052 · wf-form4_164738969862725.xml · nonDerivative · entry 5

Bender Steven · CIK 0001701687 · VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,687

SEC source: 0001699136-22-000040 · wf-form4_164738932311015.xml · derivative · entry 3

ODONNELL JOHN A · CIK 0001173592 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,938

Underlying: Class A Common Stock · 1,938 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F3 · derivative.exercise_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000040 · wf-form4_164738932311015.xml · derivative · entry 2

ODONNELL JOHN A · CIK 0001173592 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,115 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F2 · derivative.exercise_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000040 · wf-form4_164738932311015.xml · nonDerivative · entry 1

ODONNELL JOHN A · CIK 0001173592 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,375

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

SEC source: 0001699136-22-000038 · wf-form4_164738927317079.xml · derivative · entry 3

Law Melissa · CIK 0001801828 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,938

Underlying: Class A Common Stock · 1,938 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F3 · derivative.exercise_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000038 · wf-form4_164738927317079.xml · derivative · entry 2

Law Melissa · CIK 0001801828 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,115 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F2 · derivative.exercise_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000038 · wf-form4_164738927317079.xml · nonDerivative · entry 1

Law Melissa · CIK 0001801828 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,476

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

SEC source: 0001699136-22-000043 · wf-form4_164738941642553.xml · derivative · entry 3

Semple Alan · CIK 0001701710 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,938

Underlying: Class A Common Stock · 1,938 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F3 · derivative.exercise_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000043 · wf-form4_164738941642553.xml · derivative · entry 2

Semple Alan · CIK 0001701710 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,115 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F2 · derivative.exercise_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000043 · wf-form4_164738941642553.xml · nonDerivative · entry 1

Semple Alan · CIK 0001701710 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,035

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

SEC source: 0001699136-22-000053 · wf-form4_164738971992060.xml · derivative · entry 2

Cactus WH Enterprises, LLC · CIK 0001701768 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,014,963

Underlying: Class A Common Stock · 1,000,000 shares

Expires not disclosed

F2 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F3 · derivative.exercise_price: 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.

F4 · kind: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Units to such members.

F4 · price: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Units to such members.

F3 · derivative.exercise_date: 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.

F4 · derivative.expiration_date: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Units to such members.

SEC source: 0001699136-22-000053 · wf-form4_164738971992060.xml · nonDerivative · entry 1

Cactus WH Enterprises, LLC · CIK 0001701768 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,014,963

F1 · kind: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Class B Common Stock to such members.

F1 · price: In connection with certain redemptions of ownership interests in the Reporting Entity by certain of the Reporting Entity's members pursuant to the first amended and restated limited liability company agreement of the Reporting Entity, the Reporting Entity distributed Class B Common Stock to such members.

SEC source: 0001699136-22-000045 · wf-form4_164738945767328.xml · derivative · entry 1

Tombar Tymothi O. · CIK 0001469057 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,450

Underlying: Class A Common Stock · 1,938 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F2 · derivative.exercise_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000039 · wf-form4_164738929666151.xml · derivative · entry 3

MCGOVERN MICHAEL Y · CIK 0001259039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,938

Underlying: Class A Common Stock · 1,938 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F3 · derivative.exercise_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000039 · wf-form4_164738929666151.xml · derivative · entry 2

MCGOVERN MICHAEL Y · CIK 0001259039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,115 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F2 · derivative.exercise_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000039 · wf-form4_164738929666151.xml · nonDerivative · entry 1

MCGOVERN MICHAEL Y · CIK 0001259039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,375

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

SEC source: 0001699136-22-000041 · wf-form4_164738934832337.xml · derivative · entry 3

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,938

Underlying: Class A Common Stock · 1,938 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F3 · derivative.exercise_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On March 11, 2022, the reporting person was granted 1,938 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000041 · wf-form4_164738934832337.xml · derivative · entry 2

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,115 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F2 · derivative.exercise_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On March 11, 2021, the reporting person was granted 3,115 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-22-000041 · wf-form4_164738934832337.xml · nonDerivative · entry 1

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,208

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

SEC source: 0001699136-22-000033 · wf-form4_164738915705394.xml · derivative · entry 7

Anderson Donna L · CIK 0001326634 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,789

Underlying: Class A Common Stock · 2,907 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F5 · derivative.exercise_date: On March 11, 2022, the reporting person was granted 2,907 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F5 · derivative.expiration_date: On March 11, 2022, the reporting person was granted 2,907 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-22-000033 · wf-form4_164738915705394.xml · derivative · entry 6

Anderson Donna L · CIK 0001326634 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,882

Underlying: Class A Common Stock · 1,402 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F4 · derivative.exercise_date: On March 11, 2021, the reporting person was granted 4,205 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On March 11, 2021, the reporting person was granted 4,205 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-22-000033 · wf-form4_164738915705394.xml · derivative · entry 5

Anderson Donna L · CIK 0001326634 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,284

Underlying: Class A Common Stock · 1,867 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

F3 · derivative.exercise_date: On March 11, 2020, the reporting person was granted 5,601 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On March 11, 2020, the reporting person was granted 5,601 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-22-000033 · wf-form4_164738915705394.xml · nonDerivative · entry 4

Anderson Donna L · CIK 0001326634 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,906

F2 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted restricted stock units.

SEC source: 0001699136-22-000033 · wf-form4_164738915705394.xml · nonDerivative · entry 3

Anderson Donna L · CIK 0001326634 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,455

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.