WHD

SEC source: 0001699136-21-000057 · wf-form4_161559186661709.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,504

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

SEC source: 0001699136-21-000057 · wf-form4_161559186661709.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,769

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: 0001699136-21-000035 · wf-form4_161469323470149.xml · nonDerivative · entry 4

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,772

SEC source: 0001699136-21-000035 · wf-form4_161469323470149.xml · nonDerivative · entry 3

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,272

SEC source: 0001699136-21-000035 · wf-form4_161469323470149.xml · nonDerivative · entry 2

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,772

SEC source: 0001699136-21-000035 · wf-form4_161469323470149.xml · nonDerivative · entry 1

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,772

SEC source: 0001699136-21-000016 · wf-form4_161291302268648.xml · derivative · entry 2

Semple Alan · CIK 0001701710 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,321

Underlying: Class A Common Stock · 21,930 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 February 7, 2018, the reporting person was granted a total of 71,054 restricted stock units, 5,264 of which vested on the first anniversary of the grant date and 65,790 of which vest in three equal annual installments beginning on the first anniversary of the grant date.

F2 · derivative.expiration_date: On February 7, 2018, the reporting person was granted a total of 71,054 restricted stock units, 5,264 of which vested on the first anniversary of the grant date and 65,790 of which vest in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-21-000016 · wf-form4_161291302268648.xml · nonDerivative · entry 1

Semple Alan · CIK 0001701710 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,599

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: 0001699136-21-000018 · wf-form4_161291320862561.xml · derivative · entry 2

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,321

Underlying: Class A Common Stock · 21,930 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 February 7, 2018, the reporting person was granted a total of 71,054 restricted stock units, 5,264 of which vested on the first anniversary of the grant date and 65,790 of which vest in three equal annual installments beginning on the first anniversary of the grant date.

F2 · derivative.expiration_date: On February 7, 2018, the reporting person was granted a total of 71,054 restricted stock units, 5,264 of which vested on the first anniversary of the grant date and 65,790 of which vest in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-21-000018 · wf-form4_161291320862561.xml · nonDerivative · entry 1

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,772

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: 0001699136-21-000014 · wf-form4_161291288066139.xml · derivative · entry 3

Bender Steven · CIK 0001701687 · VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,986

Underlying: Class A Common Stock · 10,526 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 February 7, 2018, the reporting person was granted 31,579 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On February 7, 2018, the reporting person was granted 31,579 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-21-000014 · wf-form4_161291288066139.xml · nonDerivative · entry 2

Bender Steven · CIK 0001701687 · VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,401

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

SEC source: 0001699136-21-000014 · wf-form4_161291288066139.xml · nonDerivative · entry 1

Bender Steven · CIK 0001701687 · VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,188

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: 0001699136-21-000012 · wf-form4_161291262134050.xml · derivative · entry 3

Tadlock Stephen · CIK 0001710396 · VP, CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,240

Underlying: Class A Common Stock · 32,895 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 February 7, 2018, the reporting person was granted 98,685 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On February 7, 2018, the reporting person was granted 98,685 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-21-000012 · wf-form4_161291262134050.xml · nonDerivative · entry 2

Tadlock Stephen · CIK 0001710396 · VP, CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,865

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

SEC source: 0001699136-21-000012 · wf-form4_161291262134050.xml · nonDerivative · entry 1

Tadlock Stephen · CIK 0001710396 · VP, CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,088

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: 0001699136-21-000010 · wf-form4_161291249114139.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,664

Underlying: Class A Common Stock · 17,544 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 February 7, 2018, the reporting person was granted 52,632 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On February 7, 2018, the reporting person was granted 52,632 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-21-000010 · wf-form4_161291249114139.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,390

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

SEC source: 0001699136-21-000010 · wf-form4_161291249114139.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,899

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: 0001699136-21-000008 · wf-form4_161291232970604.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,664

Underlying: Class A Common Stock · 17,544 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 February 7, 2018, the reporting person was granted 52,632 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On February 7, 2018, the reporting person was granted 52,632 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-21-000008 · wf-form4_161291232970604.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,936

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

SEC source: 0001699136-21-000008 · wf-form4_161291232970604.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,796

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: 0001699136-21-000002 · wf-form4_161222269506633.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 · 3,361 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 January 30, 2020 the reporting person was granted 3,361 restricted stock units, vesting on the first anniversary of the grant date.

F2 · derivative.expiration_date: On January 30, 2020 the reporting person was granted 3,361 restricted stock units, vesting on the first anniversary of the grant date.

SEC source: 0001699136-21-000002 · wf-form4_161222269506633.xml · nonDerivative · entry 1

Law Melissa · CIK 0001801828 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,361

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: 0001699136-20-000064 · wf-form4_160859172099178.xml · derivative · entry 3

Anderson Donna L · CIK 0001326634 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,024

Underlying: Class A Common Stock · 2,212 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 December 20, 2019, the reporting person was granted 6,635 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On December 20, 2019, the reporting person was granted 6,635 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001699136-20-000064 · wf-form4_160859172099178.xml · nonDerivative · entry 2

Anderson Donna L · CIK 0001326634 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,496

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

SEC source: 0001699136-20-000064 · wf-form4_160859172099178.xml · nonDerivative · entry 1

Anderson Donna L · CIK 0001326634 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,212

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: 0001699136-20-000061 · wf-form4_160807174951850.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,631,734

Underlying: Class A Common Stock · 50,000 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: 0001699136-20-000061 · wf-form4_160807174951850.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,631,734

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: 0001699136-20-000062 · wf-form4_160807182365153.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 17,631,734

Underlying: Class A Common Stock · 50,000 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: 0001699136-20-000062 · wf-form4_160807182365153.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: 17,631,734

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: 0001699136-20-000060 · wf-form4_160807168013376.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 17,631,734

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

F6 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F7 · 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 (the "Redemption Right"). The Reporting Person exercised his Redemption Right with respect to Units owned by him.

F8 · 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. 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.

F3 · kind: 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.

F9 · price: The Units were redeemed for Class A Common Stock on December 11, 2020.

F7 · 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 (the "Redemption Right"). The Reporting Person exercised his Redemption Right with respect to Units owned by him.

F8 · 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. 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.

F7 · derivative.expiration_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 (the "Redemption Right"). The Reporting Person exercised his Redemption Right with respect to Units owned by him.

F8 · 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. 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.

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.

F4 · ownership.nature: Following the transaction reported herein, the Reporting Person is deemed to beneficially own 17,631,734 shares of Class B Common Stock and 17,631,734 Units owned by Cactus Enterprises.

SEC source: 0001699136-20-000060 · wf-form4_160807168013376.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 17,681,734

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

F6 · security: "Units" mean ownership interests in Cactus Wellhead, LLC ("Cactus LLC"). The Issuer is the sole managing member of Cactus LLC.

F7 · 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 (the "Redemption Right"). The Reporting Person exercised his Redemption Right with respect to Units owned by him.

F8 · 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. 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.

F1 · kind: 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.

F9 · price: The Units were redeemed for Class A Common Stock on December 11, 2020.

F7 · 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 (the "Redemption Right"). The Reporting Person exercised his Redemption Right with respect to Units owned by him.

F8 · 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. 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.

F7 · derivative.expiration_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 (the "Redemption Right"). The Reporting Person exercised his Redemption Right with respect to Units owned by him.

F8 · 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. 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.

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: 0001699136-20-000060 · wf-form4_160807168013376.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,252

SEC source: 0001699136-20-000060 · wf-form4_160807168013376.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,252

F5 · kind: In connection with the redemption of Units, as described below, SJB BIC LP acquired 50,000 shares of Class A Common Stock.

F5 · price: In connection with the redemption of Units, as described below, SJB BIC LP acquired 50,000 shares of Class A Common Stock.

SEC source: 0001699136-20-000060 · wf-form4_160807168013376.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: 17,631,734

F1 · kind: 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.

F3 · price: 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.

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.

F4 · ownership.nature: Following the transaction reported herein, the Reporting Person is deemed to beneficially own 17,631,734 shares of Class B Common Stock and 17,631,734 Units owned by Cactus Enterprises.

SEC source: 0001699136-20-000060 · wf-form4_160807168013376.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: 17,681,734

F1 · kind: 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.

F1 · price: 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.

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: 0001699136-20-000056 · wf-form4_160763945209741.xml · nonDerivative · entry 4

Tadlock Stephen · CIK 0001710396 · VP, CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,193

SEC source: 0001699136-20-000056 · wf-form4_160763945209741.xml · nonDerivative · entry 3

Tadlock Stephen · CIK 0001710396 · VP, CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,693

SEC source: 0001699136-20-000056 · wf-form4_160763945209741.xml · nonDerivative · entry 2

Tadlock Stephen · CIK 0001710396 · VP, CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,193

SEC source: 0001699136-20-000052 · wf-form4_160755257002058.xml · nonDerivative · entry 6

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,842

SEC source: 0001699136-20-000052 · wf-form4_160755257002058.xml · nonDerivative · entry 5

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,842

SEC source: 0001699136-20-000052 · wf-form4_160755257002058.xml · nonDerivative · entry 4

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,842

SEC source: 0001699136-20-000052 · wf-form4_160755257002058.xml · nonDerivative · entry 3

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,842

SEC source: 0001699136-20-000054 · wf-form4_160755273210455.xml · nonDerivative · entry 1

Isaac David John · CIK 0001754023 · GC and VP of Administration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,091

SEC source: 0001699136-20-000056 · wf-form4_160763945209741.xml · nonDerivative · entry 1

Tadlock Stephen · CIK 0001710396 · VP, CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,693

SEC source: 0001699136-20-000052 · wf-form4_160755257002058.xml · nonDerivative · entry 2

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,842

SEC source: 0001699136-20-000052 · wf-form4_160755257002058.xml · nonDerivative · entry 1

Rosenthal Gary L · CIK 0001198825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,842

SEC source: 0001699136-20-000050 · wf-form4_160617278789452.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,681,734

Underlying: Class A Common Stock · 37,328 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: 0001699136-20-000050 · wf-form4_160617278789452.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,681,734

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.