ACMR

SEC source: 0001140361-23-000514 · form4.xml · derivative · entry 1

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,500

Underlying: Class A Common Stock · 22,500 shares

Expires 2032-03-03

F1 · derivative.exercise_date: On March 4, 2022, the reporting person was granted an option to purchase 30,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 31, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 22,500 shares.

F1 · balance_after: On March 4, 2022, the reporting person was granted an option to purchase 30,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 31, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 22,500 shares.

SEC source: 0001140361-23-000515 · form4.xml · derivative · entry 1

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,500

Underlying: Class A Common Stock · 13,500 shares

Expires 2032-03-03

F1 · derivative.exercise_date: On March 4, 2022, the reporting person was granted an option to purchase 30,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 30, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 13,500 shares.

F1 · balance_after: On March 4, 2022, the reporting person was granted an option to purchase 30,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 30, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 13,500 shares.

SEC source: 0001140361-23-007064 · form4.xml · derivative · entry 1

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,000

Underlying: Class A Common Stock · 3,000 shares

Expires 2032-03-03

F1 · shares: This Form 4 amendment has been filed solely to correct the number of derivative securities acquired, the amount of underlying securities, and the number of derivative securities beneficially owned following the reported transaction in connection with a previously issued stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on January 4, 2023 (the "Form 4"). Such numbers were inadvertently stated as 13,500 in the Form 4. Such numbers should have been stated as 3,000 in the Form 4.

F2 · derivative.exercise_date: On March 4, 2022, the reporting person was granted an option to purchase 30,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 30, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 3,000 shares.

F1 · derivative.underlying_shares: This Form 4 amendment has been filed solely to correct the number of derivative securities acquired, the amount of underlying securities, and the number of derivative securities beneficially owned following the reported transaction in connection with a previously issued stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on January 4, 2023 (the "Form 4"). Such numbers were inadvertently stated as 13,500 in the Form 4. Such numbers should have been stated as 3,000 in the Form 4.

F1 · balance_after: This Form 4 amendment has been filed solely to correct the number of derivative securities acquired, the amount of underlying securities, and the number of derivative securities beneficially owned following the reported transaction in connection with a previously issued stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on January 4, 2023 (the "Form 4"). Such numbers were inadvertently stated as 13,500 in the Form 4. Such numbers should have been stated as 3,000 in the Form 4.

F2 · balance_after: On March 4, 2022, the reporting person was granted an option to purchase 30,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 30, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 3,000 shares.

SEC source: 0001140361-22-047729 · form4.xml · derivative · entry 1

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,500

Underlying: Class A Common Stock · 22,500 shares

Expires 2032-03-03

F1 · derivative.exercise_date: On March 4, 2022, the reporting person was granted an option to purchase 60,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 28, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 22,500 shares.

F1 · balance_after: On March 4, 2022, the reporting person was granted an option to purchase 60,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 28, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 22,500 shares.

SEC source: 0001140361-22-044287 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 890,620

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.23 to $8.94, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

SEC source: 0001140361-22-043148 · form4.xml · derivative · entry 3

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 275,001

Underlying: Class A Common Stock · 37,500 shares

Expires 2025-05-01

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 · kind: On November 22, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 2,173 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 21, 2022 of $8.63, and issuing to the reporting person the remaining 35,327 shares of Class A Common Stock.

F2 · derivative.exercise_date: The option is fully vested and exercisable.

SEC source: 0001140361-22-043148 · form4.xml · nonDerivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 925,947

F1 · kind: On November 22, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 2,173 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 21, 2022 of $8.63, and issuing to the reporting person the remaining 35,327 shares of Class A Common Stock.

SEC source: 0001140361-22-043148 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 928,120

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 · kind: On November 22, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 2,173 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 21, 2022 of $8.63, and issuing to the reporting person the remaining 35,327 shares of Class A Common Stock.

SEC source: 0001140361-22-041755 · form4.xml · derivative · entry 3

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 312,501

Underlying: Class A Common Stock · 37,500 shares

Expires 2025-05-01

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 · kind: On November 14, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 1,970 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 11, 2022 of $9.52, and issuing to the reporting person the remaining 35,530 shares of Class A Common Stock.

F2 · derivative.exercise_date: The option is fully vested and exercisable.

SEC source: 0001140361-22-041755 · form4.xml · nonDerivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 890,620

F1 · kind: On November 14, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 1,970 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 11, 2022 of $9.52, and issuing to the reporting person the remaining 35,530 shares of Class A Common Stock.

SEC source: 0001140361-22-041755 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 892,590

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 · kind: On November 14, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 1,970 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 11, 2022 of $9.52, and issuing to the reporting person the remaining 35,530 shares of Class A Common Stock.

SEC source: 0001140361-22-030802 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 855,090

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.88 to $16.32, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

SEC source: 0001140361-22-030526 · form4.xml · nonDerivative · entry 1

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,002

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.34 to $17.69, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

SEC source: 0001140361-22-030318 · form4.xml · derivative · entry 7

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Class A Common Stock · 5,000 shares

Expires 2028-07-31

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.

F3 · kind: On August 17, 2022, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer.

F7 · derivative.exercise_date: The option is fully vested and exercisable.

SEC source: 0001140361-22-030318 · form4.xml · nonDerivative · entry 5

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120,002

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.16 to $18.53, inclusive.

SEC source: 0001140361-22-030318 · form4.xml · nonDerivative · entry 4

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,820

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.13 to $18.06, inclusive.

SEC source: 0001140361-22-030318 · form4.xml · nonDerivative · entry 3

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,002

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.

F3 · kind: On August 17, 2022, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer.

SEC source: 0001140361-22-030318 · form4.xml · derivative · entry 6

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Class A Common Stock · 5,000 shares

Expires 2028-07-31

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 · kind: On August 16, 2022, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer.

F7 · derivative.exercise_date: The option is fully vested and exercisable.

SEC source: 0001140361-22-030318 · form4.xml · nonDerivative · entry 2

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 130,002

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.27 to $19.54, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4), (5) and (6) to this Form 4.

SEC source: 0001140361-22-030318 · form4.xml · nonDerivative · entry 1

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,002

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 · kind: On August 16, 2022, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer.

SEC source: 0001140361-22-030151 · form4.xml · derivative · entry 4

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 350,001

Underlying: Class A Common Stock · 37,500 shares

Expires 2025-05-01

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 · kind: On August 15, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 963 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on August 12, 2022 of $19.49, and issuing to the reporting person the remaining 36,537 shares of Class A Common Stock.

F3 · derivative.exercise_date: The option is fully vested and exercisable.

SEC source: 0001140361-22-030151 · form4.xml · nonDerivative · entry 3

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 891,627

F2 · kind: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.03 to $19.60, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

SEC source: 0001140361-22-030151 · form4.xml · nonDerivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 928,146

F1 · kind: On August 15, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 963 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on August 12, 2022 of $19.49, and issuing to the reporting person the remaining 36,537 shares of Class A Common Stock.

SEC source: 0001140361-22-030151 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 929,109

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 · kind: On August 15, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 963 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on August 12, 2022 of $19.49, and issuing to the reporting person the remaining 36,537 shares of Class A Common Stock.

SEC source: 0001140361-22-029903 · form4.xml · derivative · entry 1

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Class A Common Stock · 100,000 shares

Expires 2032-08-11

F1 · derivative.exercise_date: The option will vest and become exercisable as to 25,000 shares on August 12, 2023 and the remaining 75,000 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

SEC source: 0001140361-22-029103 · form4.xml · derivative · entry 3

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 387,501

Underlying: Class A Common Stock · 37,500 shares

Expires 2025-05-01

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.

F2 · kind: The option is fully vested and exercisable.

F2 · derivative.exercise_date: The option is fully vested and exercisable.

SEC source: 0001140361-22-029103 · form4.xml · nonDerivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 891,609

F1 · kind: On August 8, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 981 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on August 5, 2022 of $19.13, and issuing to the reporting person the remaining 36,519 shares of Class A Common Stock.

SEC source: 0001140361-22-029103 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 892,590

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 · kind: On August 8, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 981 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on August 5, 2022 of $19.13, and issuing to the reporting person the remaining 36,519 shares of Class A Common Stock.

SEC source: 0001140361-22-025086 · form4.xml · derivative · entry 1

Liu Tracy · CIK 0001721299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2032-06-29

F1 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2023 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-22-025087 · form4.xml · derivative · entry 1

Hu Chenming · CIK 0001316320 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2032-06-29

F1 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2023 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-22-025084 · form4.xml · derivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2032-06-29

F1 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2023 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-22-025950 · form4.xml · derivative · entry 1

Xing Xiao · CIK 0001937836 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2032-06-29

F1 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2023 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-23-029035 · form4.xml · derivative · entry 4

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,500

Underlying: Class A Common Stock · 22,500 shares

Expires 2028-07-31

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 · kind: On June 6, 2023, the reporting person exercised a previously issued stock option to purchase 22,500 shares of Class A Common Stock of the Issuer.

F4 · derivative.exercise_date: The option is fully vested and exercisable.

SEC source: 0001140361-22-021397 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 855,090

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001140361-22-020150 · form4.xml · derivative · entry 3

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,001

Underlying: Class A Common Stock · 37,500 shares

Expires 2025-05-01

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.

F2 · kind: The option is fully vested and exercisable.

F2 · derivative.exercise_date: The option is fully vested and exercisable.

SEC source: 0001140361-22-020150 · form4.xml · nonDerivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 891,240

F1 · kind: On May 18, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 1,350 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on March 17, 2022 of $13.89, and issuing to the reporting person the remaining 36,150 shares of Class A Common Stock.

SEC source: 0001140361-22-020150 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 892,590

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 · kind: On May 18, 2022, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 1,350 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on March 17, 2022 of $13.89, and issuing to the reporting person the remaining 36,150 shares of Class A Common Stock.

SEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 10

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300

F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 9

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 678

F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 8

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,077

F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.98 to $67.60, inclusive.

SEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 7

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,477

F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.22 to $65.69, inclusive.

SEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 6

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,065

F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.13 to $64.98, inclusive.

SEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 5

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,100

F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.01 to $63.96, inclusive.

SEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 4

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,800

F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.26 to $62.00, inclusive.

SEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 3

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,200

F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.06 to $61.01, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3), (4), (5) and (6) to this Form 4.

SEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 2

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,300

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.

F2 · kind: On March 10, 2022, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer.

SEC source: 0001140361-22-009176 · form4.xml · derivative · entry 5

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 231

Underlying: Class A Common Stock · 231 shares

Expires 2025-05-01

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 · kind: On March 9, 2022, the reporting person exercised a previously issued stock option to purchase 12,269 shares of Class A Common Stock of the Issuer.

F6 · derivative.exercise_date: The option vested and became exercisable as to 41,666 shares on May 1, 2016 and the remaining 125,001 shares vested and became exercisable in equal monthly installments over the following 36 months.

SEC source: 0001140361-22-009176 · form4.xml · nonDerivative · entry 4

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297,299

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $82.54 to $82.83, inclusive.

SEC source: 0001140361-22-009176 · form4.xml · nonDerivative · entry 3

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,299

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.49 to $82.49, inclusive.

SEC source: 0001140361-22-009176 · form4.xml · nonDerivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 308,368

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.99 to $80.82, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3), (4), (5) and (6) to this Form 4.