ACMR

SEC source: 0001140361-23-042794 · form4.xml · nonDerivative · entry 1

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,900

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.

SEC source: 0001140361-23-041326 · form4.xml · derivative · entry 6

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 141,165

Underlying: Class A Common Stock · 8,835 shares

Expires 2028-01-24

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 · derivative.exercise_date: The option was fully vested and exercisable.

SEC source: 0001140361-23-041326 · form4.xml · derivative · entry 5

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 50,001 shares

Expires 2026-12-27

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 · derivative.exercise_date: The option was fully vested and exercisable.

SEC source: 0001140361-23-041326 · form4.xml · derivative · entry 4

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 46,164 shares

Expires 2026-12-27

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 · derivative.exercise_date: The option was fully vested and exercisable.

SEC source: 0001140361-23-041326 · form4.xml · nonDerivative · entry 3

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

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 $15.00 to $15.01, 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 footnote (2) to this Form 4.

SEC source: 0001140361-23-041326 · form4.xml · nonDerivative · entry 2

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,000

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.

SEC source: 0001140361-23-041326 · form4.xml · nonDerivative · entry 1

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,165

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.

SEC source: 0001140361-23-041193 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

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 $13.59 to $14.00, 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: 0001140361-23-039745 · form4.xml · derivative · entry 1

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Class A Common Stock · 100,000 shares

Expires 2033-08-09

F1 · derivative.exercise_date: The option will vest and become exercisable as to 25,000 shares on August 10, 2024 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: 0001140361-23-039741 · form4.xml · derivative · entry 2

Liu Tracy · CIK 0001721299 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2033-08-09

F2 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2024 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-23-039741 · form4.xml · derivative · entry 1

Liu Tracy · CIK 0001721299 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2033-08-09

F1 · derivative.exercise_date: The option will vest and become exercisable as to 7,500 shares on August 10, 2024 and the remaining 22,500 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: 0001140361-23-039740 · form4.xml · derivative · entry 1

Hu Chenming · CIK 0001316320 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2033-08-09

F1 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2024 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-23-039746 · form4.xml · derivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2033-08-09

F2 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2024 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-23-039746 · form4.xml · derivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2033-08-09

F1 · derivative.exercise_date: The option will vest and become exercisable as to 7,500 shares on August 10, 2024 and the remaining 22,500 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: 0001140361-23-039744 · form4.xml · derivative · entry 1

Wang David H · CIK 0001721580 · Director · See remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,080,000

Underlying: Class A Common Stock · 1,080,000 shares

Expires 2033-08-09

F1 · derivative.exercise_date: The option will vest and become exercisable as to 270,000 shares on August 10, 2024 and the remaining 810,000 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: 0001140361-23-039743 · form4.xml · derivative · entry 1

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Class A Common Stock · 100,000 shares

Expires 2033-08-09

F1 · derivative.exercise_date: The option will vest and become exercisable as to 25,000 shares on August 10, 2024 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: 0001140361-23-039742 · form4.xml · derivative · entry 1

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 300,000

Underlying: Class A Common Stock · 300,000 shares

Expires 2033-08-09

F1 · derivative.exercise_date: The option will vest and become exercisable as to 75,000 shares on August 10, 2024 and the remaining 225,000 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: 0001140361-23-039739 · form4.xml · derivative · entry 1

Xing Xiao · CIK 0001937836 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2033-08-09

F1 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2024 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-23-040763 · form4.xml · derivative · entry 1

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Class A Common Stock · 100,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F2 · derivative.exercise_date: The option will vest and become exercisable as to 25,000 shares on August 10, 2024 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: 0001140361-23-040766 · form4.xml · derivative · entry 2

Liu Tracy · CIK 0001721299 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F3 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2024 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-23-040766 · form4.xml · derivative · entry 1

Liu Tracy · CIK 0001721299 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F2 · derivative.exercise_date: The option will vest and become exercisable as to 7,500 shares on August 10, 2024 and the remaining 22,500 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: 0001140361-23-040765 · form4.xml · derivative · entry 1

Hu Chenming · CIK 0001316320 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F2 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2024 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-23-040770 · form4.xml · derivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F3 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2024 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-23-040770 · form4.xml · derivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F2 · derivative.exercise_date: The option will vest and become exercisable as to 7,500 shares on August 10, 2024 and the remaining 22,500 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: 0001140361-23-040769 · form4.xml · derivative · entry 1

Wang David H · CIK 0001721580 · Director · See remarks · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,080,000

Underlying: Class A Common Stock · 1,080,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F2 · derivative.exercise_date: The option will vest and become exercisable as to 270,000 shares on August 10, 2024 and the remaining 810,000 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: 0001140361-23-040768 · form4.xml · derivative · entry 1

McKechnie Mark · CIK 0001775007 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 300,000

Underlying: Class A Common Stock · 300,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F2 · derivative.exercise_date: The option will vest and become exercisable as to 75,000 shares on August 10, 2024 and the remaining 225,000 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: 0001140361-23-040767 · form4.xml · derivative · entry 1

Xing Xiao · CIK 0001937836 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Class A Common Stock · 24,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F2 · derivative.exercise_date: The option will vest and become exercisable immediately prior to the 2024 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.

SEC source: 0001140361-23-040764 · form4.xml · derivative · entry 1

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Class A Common Stock · 100,000 shares

Expires 2033-08-09

F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.

F2 · derivative.exercise_date: The option will vest and become exercisable as to 25,000 shares on August 10, 2024 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: 0001140361-23-033166 · form4.xml · derivative · entry 3

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 22,500 shares

Expires 2028-01-24

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 · derivative.exercise_date: The option was fully vested and exercisable.

F3 · balance_after: Due to an administrative error, the reporting person's previous Form 4 filed on March 13, 2023 reflected an incorrect amount of zero for number of derivative securities beneficially owned following reported transaction(s) in Column 9 rather than 22,500. This filing corrects that error.

SEC source: 0001140361-23-033166 · form4.xml · nonDerivative · entry 2

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,001

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: 0001140361-23-033166 · form4.xml · nonDerivative · entry 1

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,501

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.

SEC source: 0001140361-23-029035 · form4.xml · derivative · entry 5

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,500

Underlying: Class A Common Stock · 16,500 shares

Expires 2029-08-03

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 June 6, 2023, the reporting person exercised a previously issued stock option to purchase 16,500 shares of Class A Common Stock of the Issuer.

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

SEC source: 0001140361-23-029035 · form4.xml · nonDerivative · entry 3

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,002

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: 0001140361-23-029035 · form4.xml · nonDerivative · entry 2

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 149,002

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.

F2 · kind: On June 6, 2023, the reporting person exercised a previously issued stock option to purchase 16,500 shares of Class A Common Stock of the Issuer.

SEC source: 0001140361-23-029035 · form4.xml · nonDerivative · entry 1

Cheav Sotheara · CIK 0001721279 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,502

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.

SEC source: 0001140361-23-028430 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 887,188

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 $9.71 to $10.26, 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: 0001140361-23-026456 · form4.xml · derivative · entry 3

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,001

Underlying: Class A Common Stock · 37,500 shares

Expires 2025-04-30

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 22, 2023, 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 1,928 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 May 19, 2023 of $9.73, and issuing to the reporting person the remaining 35,572 shares of Class A Common Stock.

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

SEC source: 0001140361-23-026456 · form4.xml · nonDerivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 924,688

F1 · kind: On May 22, 2023, 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 1,928 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 May 19, 2023 of $9.73, and issuing to the reporting person the remaining 35,572 shares of Class A Common Stock.

SEC source: 0001140361-23-026456 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 926,616

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 22, 2023, 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 1,928 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 May 19, 2023 of $9.73, and issuing to the reporting person the remaining 35,572 shares of Class A Common Stock.

SEC source: 0001140361-23-012644 · form4.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 889,116

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 $11.81 to $12.25, 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: 0001140361-23-011466 · form4.xml · derivative · entry 3

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 237,501

Underlying: Class A Common Stock · 37,500 shares

Expires 2025-04-30

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, 2023, 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 1,504 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 8, 2023 of $12.47, and issuing to the reporting person the remaining 35,996 shares of Class A Common Stock.

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

SEC source: 0001140361-23-011466 · form4.xml · nonDerivative · entry 2

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 926,616

F1 · kind: On March 9, 2023, 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 1,504 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 8, 2023 of $12.47, and issuing to the reporting person the remaining 35,996 shares of Class A Common Stock.

SEC source: 0001140361-23-011466 · 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 March 9, 2023, 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 1,504 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 8, 2023 of $12.47, and issuing to the reporting person the remaining 35,996 shares of Class A Common Stock.

SEC source: 0001140361-23-011465 · form4.xml · derivative · entry 6

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 22,500 shares

Expires 2028-01-24

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.

F6 · derivative.exercise_date: The option was fully vested and exercisable.

SEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 5

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,001

F1 · 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 $12.50 to $12.59, inclusive.

SEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 4

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,111

F1 · 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 $12.40 to $12.50, inclusive.

SEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 3

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,255

F1 · 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 $12.29 to $12.39, inclusive.

SEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 2

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,801

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 $12.18 to $12.26, 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 (2) through (5) to this Form 4.

SEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 1

Feng Lisa · CIK 0001779777 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,501

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.

SEC source: 0001140361-23-007065 · form4.xml · derivative · entry 1

Wang Jian · CIK 0001721620 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Class A Common Stock · 15,000 shares

Expires 2032-03-03

F1 · derivative.exercise_date: On March 4, 2022, the reporting person was granted an option to purchase 75,000 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 February 12, 2023, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 15,000 shares.

F1 · balance_after: On March 4, 2022, the reporting person was granted an option to purchase 75,000 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 February 12, 2023, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 15,000 shares.