ZM

SEC source: 0001585521-23-000242 · wk-form4_1698875434.xml · nonDerivative · entry 2

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,442

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 $59.09 to $60.06. 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.

SEC source: 0001585521-23-000242 · wk-form4_1698875434.xml · nonDerivative · entry 1

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,960

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: 0001585521-23-000240 · wk-form4_1697838462.xml · nonDerivative · entry 1

Bawa Aparna · CIK 0001773301 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,978

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 $62.82 to $63.79. 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.

F3 · ownership.nature: The shares are held of record by Rafik Bawa and Aparna Bawa, as Trustees of the Bawa Family Trust under agreement dated November 12, 2013, for which the Reporting Person and the Reporting Person's spouse serve as trustees.

SEC source: 0001585521-23-000238 · wk-form4_1697578533.xml · derivative · entry 7

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 10,960 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.

F6 · 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.

F6 · 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.

SEC source: 0001585521-23-000238 · wk-form4_1697578533.xml · derivative · entry 6

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,960

Underlying: Class A Common Stock · 10,960 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.

F6 · 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.

F6 · 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.

SEC source: 0001585521-23-000238 · wk-form4_1697578533.xml · derivative · entry 5

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 587,908

Underlying: Class B Common Stock · 10,960 shares

Expires 2028-01-06

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.

F5 · derivative.exercise_date: 1/4 of the shares subject to the option vested on November 6, 2018, and 1/48 of the shares vest monthly thereafter. The shares subject to this option are early exercisable, subject to the Issuer's right to repurchase.

F6 · derivative.underlying: 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.

SEC source: 0001585521-23-000238 · wk-form4_1697578533.xml · nonDerivative · entry 3

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Plan reported

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.

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.18 to $63.58. 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: 0001585521-23-000238 · wk-form4_1697578533.xml · nonDerivative · entry 2

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,600

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 $62.18 to $63.16. 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.

SEC source: 0001585521-23-000238 · wk-form4_1697578533.xml · nonDerivative · entry 1

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,960

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: 0001585521-23-000236 · wk-form4_1697064807.xml · nonDerivative · entry 3

Sankarlingam Velchamy · CIK 0001814012 · Pres. of Engineering & Product

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,942

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

F4 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.858 to $66.825. 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.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · derivative · entry 19

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,208 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.

F16 · 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.

F16 · 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.

F16 · 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.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · derivative · entry 18

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,208

Underlying: Class A Common Stock · 11,208 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.

F16 · 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.

F16 · 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.

F16 · 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.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · derivative · entry 17

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 44,829

Underlying: Class B Common Stock · 11,208 shares

Expires 2028-09-24

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.

F15 · derivative.exercise_date: This option is fully vested.

F16 · derivative.underlying: 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.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 11

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 91,954

F4 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F11 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.03 to $67.52. 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: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 10

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 109,418

F4 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F10 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.02 to $67.00. 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: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 9

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F4 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F9 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.52 to $67.825. 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.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 8

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,208

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

SEC source: 0001585521-23-000228 · wk-form4_1696981008.xml · nonDerivative · entry 3

Crehan Shane · CIK 0001765578 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

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: 0001585521-23-000232 · wk-form4_1697064474.xml · derivative · entry 16

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,208 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.

F16 · 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.

F16 · 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.

F16 · 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.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · derivative · entry 15

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,208

Underlying: Class A Common Stock · 11,208 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.

F16 · 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.

F16 · 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.

F16 · 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.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · derivative · entry 14

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 56,037

Underlying: Class B Common Stock · 11,208 shares

Expires 2028-09-24

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.

F15 · derivative.exercise_date: This option is fully vested.

F16 · derivative.underlying: 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.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 7

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 113,227

F4 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F8 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.69 to $64.80. 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: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 6

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 114,148

F4 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F7 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.68 to $64.67. 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: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 5

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F4 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F6 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.80 to $66.11. 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: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 4

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,794

F4 · 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 $64.80 to $65.78. 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: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 3

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,208

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

SEC source: 0001585521-23-000236 · wk-form4_1697064807.xml · derivative · entry 10

Sankarlingam Velchamy · CIK 0001814012 · Pres. of Engineering & Product

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 45,832

Underlying: Class A Common Stock · 22,916 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.

F5 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F8 · derivative.exercise_date: The Reporting Person received an award of restricted stock units on April 6, 2023, which will vest in equal quarterly installments over one year.

F8 · derivative.expiration_date: The Reporting Person received an award of restricted stock units on April 6, 2023, which will vest in equal quarterly installments over one year.

SEC source: 0001585521-23-000236 · wk-form4_1697064807.xml · derivative · entry 9

Sankarlingam Velchamy · CIK 0001814012 · Pres. of Engineering & Product

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,855

Underlying: Class A Common Stock · 8,427 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.

F5 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F7 · derivative.exercise_date: The reporting person received an award of restricted stock units on April 8, 2022, which will vest in equal quarterly installments over two years.

F7 · derivative.expiration_date: The reporting person received an award of restricted stock units on April 8, 2022, which will vest in equal quarterly installments over two years.

SEC source: 0001585521-23-000236 · wk-form4_1697064807.xml · derivative · entry 8

Sankarlingam Velchamy · CIK 0001814012 · Pres. of Engineering & Product

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,983

Underlying: Class A Common Stock · 6,327 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.

F5 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F6 · derivative.exercise_date: The reporting person received an award of restricted stock units, 1/4 of which will vest on July 8, 2021 and the remaining units will vest in equal quarterly installments thereafter, subject to the Reporting Person's continuous Service (as defined in the Issuer's 2019 Equity Incentive Plan) on each such vesting date. The restricted stock units are subject to accelerated vesting in the event of termination of employment by the Reporting Person under certain circumstances in connection with a change in control of the Issuer.

F6 · derivative.expiration_date: The reporting person received an award of restricted stock units, 1/4 of which will vest on July 8, 2021 and the remaining units will vest in equal quarterly installments thereafter, subject to the Reporting Person's continuous Service (as defined in the Issuer's 2019 Equity Incentive Plan) on each such vesting date. The restricted stock units are subject to accelerated vesting in the event of termination of employment by the Reporting Person under certain circumstances in connection with a change in control of the Issuer.

SEC source: 0001585521-23-000236 · wk-form4_1697064807.xml · nonDerivative · entry 2

Sankarlingam Velchamy · CIK 0001814012 · Pres. of Engineering & Product

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 76,854

F1 · shares: Shares withheld by Issuer to satisfy the tax withholding obligation in connection with the vesting of Restricted Stock Units.

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.965 to $63.967. 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: 0001585521-23-000236 · wk-form4_1697064807.xml · nonDerivative · entry 1

Sankarlingam Velchamy · CIK 0001814012 · Pres. of Engineering & Product

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 95,976

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: 0001585521-23-000230 · wk-form4_1697064334.xml · derivative · entry 4

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 161,054

Underlying: Class A Common Stock · 14,641 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.

F3 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F5 · derivative.exercise_date: The Reporting Person received an award of restricted stock units on July 11, 2023 which will vest in equal quarterly installments over three years.

F5 · derivative.expiration_date: The Reporting Person received an award of restricted stock units on July 11, 2023 which will vest in equal quarterly installments over three years.

SEC source: 0001585521-23-000230 · wk-form4_1697064334.xml · derivative · entry 3

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 204,336

Underlying: Class A Common Stock · 18,576 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.

F3 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F4 · derivative.exercise_date: The reporting person received an award of restricted stock units on July 8, 2022, which will vest in equal quarterly installments over four years.

F4 · derivative.expiration_date: The reporting person received an award of restricted stock units on July 8, 2022, which will vest in equal quarterly installments over four years.

SEC source: 0001585521-23-000230 · wk-form4_1697064334.xml · nonDerivative · entry 2

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 71,085

F2 · shares: Shares withheld by Issuer to satisfy the tax withholding obligation in connection with the vesting of Restricted Stock Units.

F1 · ownership.nature: The shares are held of record by Kelly Steckelberg Trust dated July 29, 2006, for which the Reporting Person serves as trustee.

SEC source: 0001585521-23-000230 · wk-form4_1697064334.xml · nonDerivative · entry 1

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 85,047

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 Kelly Steckelberg Trust dated July 29, 2006, for which the Reporting Person serves as trustee.

SEC source: 0001585521-23-000234 · wk-form4_1697064658.xml · derivative · entry 6

Bawa Aparna · CIK 0001773301 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,719

Underlying: Class A Common Stock · 9,429 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.

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F8 · derivative.exercise_date: The Reporting Person received an award of restricted stock units on July 11, 2023 which will vest in equal quarterly installments over three years.

F8 · derivative.expiration_date: The Reporting Person received an award of restricted stock units on July 11, 2023 which will vest in equal quarterly installments over three years.

SEC source: 0001585521-23-000234 · wk-form4_1697064658.xml · derivative · entry 5

Bawa Aparna · CIK 0001773301 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,153

Underlying: Class A Common Stock · 8,577 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.

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F7 · derivative.exercise_date: The Reporting Person received an award of restricted stock units on April 6, 2023, which will vest in equal quarterly installments over one year beginning July 8, 2023.

F7 · derivative.expiration_date: The Reporting Person received an award of restricted stock units on April 6, 2023, which will vest in equal quarterly installments over one year beginning July 8, 2023.

SEC source: 0001585521-23-000234 · wk-form4_1697064658.xml · derivative · entry 4

Bawa Aparna · CIK 0001773301 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,592

Underlying: Class A Common Stock · 11,963 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.

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F6 · derivative.exercise_date: The reporting person received an award of restricted stock units on July 8, 2022, which will vest in equal quarterly installments over four years.

F6 · derivative.expiration_date: The reporting person received an award of restricted stock units on July 8, 2022, which will vest in equal quarterly installments over four years.

SEC source: 0001585521-23-000234 · wk-form4_1697064658.xml · derivative · entry 3

Bawa Aparna · CIK 0001773301 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,939

Underlying: Class A Common Stock · 4,469 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.

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F5 · derivative.exercise_date: The Reporting Person received an award of restricted stock units on April 8, 2022, which will vest in equal quarterly installments over two years.

F5 · derivative.expiration_date: The Reporting Person received an award of restricted stock units on April 8, 2022, which will vest in equal quarterly installments over two years.

SEC source: 0001585521-23-000234 · wk-form4_1697064658.xml · nonDerivative · entry 2

Bawa Aparna · CIK 0001773301 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 18,935

F2 · shares: Shares withheld by Issuer to satisfy the tax withholding obligation in connection with the vesting of Restricted Stock Units.

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.9647 to $63.9655. 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 Rafik Bawa and Aparna Bawa, as Trustees of the Bawa Family Trust under agreement dated November 12, 2013, for which the Reporting Person and the Reporting Person's spouse serve as trustees.

SEC source: 0001585521-23-000234 · wk-form4_1697064658.xml · nonDerivative · entry 1

Bawa Aparna · CIK 0001773301 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 36,416

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 Rafik Bawa and Aparna Bawa, as Trustees of the Bawa Family Trust under agreement dated November 12, 2013, for which the Reporting Person and the Reporting Person's spouse serve as trustees.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · derivative · entry 13

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 331,899

Underlying: Class A Common Stock · 30,172 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.

F12 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F14 · derivative.exercise_date: The Reporting Person received an award of restricted stock units on July 11, 2023 which will vest in equal quarterly installments over three years.

F14 · derivative.expiration_date: The Reporting Person received an award of restricted stock units on July 11, 2023 which will vest in equal quarterly installments over three years.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · derivative · entry 12

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 421,094

Underlying: Class A Common Stock · 38,281 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.

F12 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F13 · derivative.exercise_date: The reporting person received an award of restricted stock units on July 8, 2022, which will vest in equal quarterly installments over four years.

F13 · derivative.expiration_date: The reporting person received an award of restricted stock units on July 8, 2022, which will vest in equal quarterly installments over four years.

SEC source: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 2

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 115,648

F2 · shares: Shares withheld by Issuer to satisfy the tax withholding obligation in connection with the vesting of Restricted Stock Units.

F3 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.969 to $63.9693. 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: 0001585521-23-000232 · wk-form4_1697064474.xml · nonDerivative · entry 1

Yuan Eric S. · CIK 0001773298 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 150,390

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: 0001585521-23-000228 · wk-form4_1696981008.xml · derivative · entry 6

Crehan Shane · CIK 0001765578 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,936

Underlying: Class A Common Stock · 3,984 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.

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F7 · derivative.exercise_date: The Reporting Person received an award of restricted stock units on October 7, 2022, which will vest in equal quarterly installments over two years.

F7 · derivative.expiration_date: The Reporting Person received an award of restricted stock units on October 7, 2022, which will vest in equal quarterly installments over two years.

SEC source: 0001585521-23-000228 · wk-form4_1696981008.xml · derivative · entry 5

Crehan Shane · CIK 0001765578 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 744

Underlying: Class A Common Stock · 186 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.

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F6 · derivative.exercise_date: The Reporting Person received an award of restricted stock units on October 8, 2021, 1/12 of which vests on January 5, 2022 and the remaining units vesting in equal quarterly installments over the next 11 quarters subject to the Reporting Person's continuous service as of such vesting date. The restricted stock units are subject to accelerated vesting in the event of termination of employment by theReporting Person under certain circumstances in connection with a change in control of the Issuer.

F6 · derivative.expiration_date: The Reporting Person received an award of restricted stock units on October 8, 2021, 1/12 of which vests on January 5, 2022 and the remaining units vesting in equal quarterly installments over the next 11 quarters subject to the Reporting Person's continuous service as of such vesting date. The restricted stock units are subject to accelerated vesting in the event of termination of employment by theReporting Person under certain circumstances in connection with a change in control of the Issuer.

SEC source: 0001585521-23-000228 · wk-form4_1696981008.xml · derivative · entry 4

Crehan Shane · CIK 0001765578 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,762

Underlying: Class A Common Stock · 691 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.

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock.

F5 · derivative.exercise_date: The Reporting Person received an award of restricted stock units, 1/4 of which will vest on October 5, 2021 and the remaining units will vest in equal quarterly installments thereafter, subject to the Reporting Person's continuous service (as defined in the Issuer's 2019 Equity Incentive Plan) on each such vesting date. The restricted stock units are subject to accelerated vesting in the event of termination of employment by the Reporting Person under certain circumstances in connection with a change in control of the Issuer.

F5 · derivative.expiration_date: The Reporting Person received an award of restricted stock units, 1/4 of which will vest on October 5, 2021 and the remaining units will vest in equal quarterly installments thereafter, subject to the Reporting Person's continuous service (as defined in the Issuer's 2019 Equity Incentive Plan) on each such vesting date. The restricted stock units are subject to accelerated vesting in the event of termination of employment by the Reporting Person under certain circumstances in connection with a change in control of the Issuer.

SEC source: 0001585521-23-000228 · wk-form4_1696981008.xml · nonDerivative · entry 2

Crehan Shane · CIK 0001765578 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,367

F1 · shares: Shares withheld by Issuer to satisfy the tax withholding obligation in connection with the vesting of Restricted Stock Units.

F2 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.902 to $63.9036. 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: 0001585521-23-000228 · wk-form4_1696981008.xml · nonDerivative · entry 1

Crehan Shane · CIK 0001765578 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,861

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.