ZM

SEC source: 0001585521-25-000208 · wk-form4_1765233900.xml · nonDerivative · entry 1

Subotovsky Santiago · CIK 0001773806 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 148,182

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2024

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.36 to $86.34. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · derivative · entry 10

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,179,212

Underlying: Class A Common Stock · 73,378 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.

F9 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · nonDerivative · entry 8

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F8 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.07 to $86.095. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · nonDerivative · entry 7

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F7 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.08 to $86.06. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · nonDerivative · entry 6

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F6 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.07 to $85.055. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · nonDerivative · entry 5

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

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 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · derivative · entry 10

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,032,456

Underlying: Class A Common Stock · 73,378 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.

F9 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · nonDerivative · entry 8

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F8 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.07 to $86.095. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · nonDerivative · entry 7

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 104

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F7 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.08 to $86.06. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · nonDerivative · entry 6

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 70,610

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F6 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.07 to $85.055. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · nonDerivative · entry 5

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 73,378

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 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · derivative · entry 9

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,179,212

Underlying: Class A Common Stock · 73,378 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.

F9 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · nonDerivative · entry 4

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.52 to $86.925. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · nonDerivative · entry 3

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F4 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.535 to $86.51. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · nonDerivative · entry 2

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.52 to $85.51. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000204 · wk-form4_1764882707.xml · nonDerivative · entry 1

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

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 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · derivative · entry 9

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,105,834

Underlying: Class A Common Stock · 73,378 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.

F9 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · nonDerivative · entry 4

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.52 to $86.925. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · nonDerivative · entry 3

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 3,704

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F4 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.535 to $86.51. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · nonDerivative · entry 2

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 33,828

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.52 to $85.51. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000206 · wk-form4a_1764970913.xml · nonDerivative · entry 1

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 73,378

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 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · derivative · entry 10

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,179,212

Underlying: Class A Common Stock · 73,378 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.

F9 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · nonDerivative · entry 8

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F8 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.525 to $81.825. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · nonDerivative · entry 7

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 11,504

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F7 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.525 to $81.52. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · nonDerivative · entry 6

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 73,378

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 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · derivative · entry 9

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,252,590

Underlying: Class A Common Stock · 73,378 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.

F9 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F9 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · nonDerivative · entry 5

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F6 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.99 to $84.16. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · nonDerivative · entry 4

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 567

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $82.99 to $83.98. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · nonDerivative · entry 3

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 34,377

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F4 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.99 to $82.98. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · nonDerivative · entry 2

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 53,463

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.99 to $81.985. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000194 · wk-form4_1763590736.xml · nonDerivative · entry 1

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 73,378

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 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · derivative · entry 11

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,325,968

Underlying: Class A Common Stock · 73,378 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.

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · nonDerivative · entry 9

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F9 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.185 to $85.45. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · nonDerivative · entry 8

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 3,912

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F8 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.18 to $85.175. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · nonDerivative · entry 7

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 30,633

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F7 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.18 to $84.175. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · nonDerivative · entry 6

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 73,378

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 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000192 · wk-form4_1762462918.xml · nonDerivative · entry 3

Subotovsky Santiago · CIK 0001773806 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 150,169

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2024

F4 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.26 to $85.405. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

SEC source: 0001585521-25-000192 · wk-form4_1762462918.xml · nonDerivative · entry 2

Subotovsky Santiago · CIK 0001773806 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 150,265

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2024

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.235 to $85.205. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

SEC source: 0001585521-25-000192 · wk-form4_1762462918.xml · nonDerivative · entry 1

Subotovsky Santiago · CIK 0001773806 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 151,147

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2024

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.23 to $84.225. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · derivative · entry 10

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,399,346

Underlying: Class A Common Stock · 73,378 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.

F10 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · nonDerivative · entry 5

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F6 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.29 to $88.52. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · nonDerivative · entry 4

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 690

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.235 to $88.21. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · nonDerivative · entry 3

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 3,100

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F4 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.23 to $87.225. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · nonDerivative · entry 2

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 30,169

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.23 to $86.225. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000190 · wk-form4_1762389326.xml · nonDerivative · entry 1

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 73,378

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 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000188 · wk-form4_1761344942.xml · derivative · entry 8

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,472,724

Underlying: Class A Common Stock · 73,378 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.

F7 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F7 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F7 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000188 · wk-form4_1761344942.xml · nonDerivative · entry 6

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F6 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.005 to $83.60. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000188 · wk-form4_1761344942.xml · nonDerivative · entry 5

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 31,880

F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 20, 2025.

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $82.005 to $83.00. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff at the Securities and Exchange Commission, upon request, the full information regarding the number of shares sold at each separate price within the ranges set forth above.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000188 · wk-form4_1761344942.xml · nonDerivative · entry 4

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 73,378

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 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.

SEC source: 0001585521-25-000188 · wk-form4_1761344942.xml · derivative · entry 7

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 21,546,102

Underlying: Class A Common Stock · 73,383 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.

F7 · derivative.exercise_price: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F7 · derivative.exercise_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F7 · derivative.expiration_date: Each share of Class B Common Stock is convertible at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon (a) other than Eric S. Yuan, the death of the Reporting Person, or (b) any transfer by the Reporting Person except certain "Permitted Transfers" described in the Issuer's certificate of incorporation. All outstanding shares of Class B Common Stock will convert into shares of Class A Common Stock upon the earliest of (i) six months following the death or incapacity of Mr. Yuan, (ii) six months following the date that Mr. Yuan ceases providing services to the Issuer, (iii) the date specified by the holders of a majority of the shares of Class B Common Stock, and (iv) the 15-year anniversary of the closing of the Issuer's initial public offering.

F1 · ownership.nature: The shares are held of record by Zheng Yuan and Hongyu Zhang, cotrustees of the the 2018 Yuan and Zhang Revocable Trust, for which the Reporting Person and the Reporting Person's spouse serve as cotrustees.