ZM

SEC source: 0001585521-19-000044 · wf-form4_157368674767756.xml · nonDerivative · entry 3

Pelosi Janine · CIK 0001773299 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 299,744

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

SEC source: 0001585521-19-000044 · wf-form4_157368674767756.xml · nonDerivative · entry 2

Pelosi Janine · CIK 0001773299 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,144

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 $68.50 to $69.35. 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: 0001585521-19-000044 · wf-form4_157368674767756.xml · nonDerivative · entry 1

Pelosi Janine · CIK 0001773299 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 312,790

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: 0001585521-19-000042 · wf-form4_157360378929866.xml · derivative · entry 5

Hammonds Kimberly · CIK 0001650280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,125 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 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 IPO.

F3 · 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 IPO.

F3 · 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 IPO.

SEC source: 0001585521-19-000042 · wf-form4_157360378929866.xml · derivative · entry 4

Hammonds Kimberly · CIK 0001650280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,125

Underlying: Class A Common Stock · 3,125 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 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 IPO.

F3 · 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 IPO.

F3 · 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 IPO.

SEC source: 0001585521-19-000042 · wf-form4_157360378929866.xml · derivative · entry 3

Hammonds Kimberly · CIK 0001650280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,375

Underlying: Class B Common Stock · 3,125 shares

Expires 2028-09-28

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

F2 · derivative.exercise_date: 1/48 of the shares subject to the option vests in equal monthly installments commencing one month from September 12, 2018. The shares subject to this option are early exercisable, subject to the Issuer's right to repurchase.

F3 · 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 IPO.

SEC source: 0001585521-19-000042 · wf-form4_157360378929866.xml · nonDerivative · entry 2

Hammonds Kimberly · CIK 0001650280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,797

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

SEC source: 0001585521-19-000042 · wf-form4_157360378929866.xml · nonDerivative · entry 1

Hammonds Kimberly · CIK 0001650280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,922

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: 0001585521-19-000040 · wf-form4_157308270830379.xml · nonDerivative · entry 2

Bawa Aparna · CIK 0001773301 · Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 320,000

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

F5 · price: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.04 to $70.81. 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 · balance_after: The shares were issued pursuant to an option that was early exercised by the Reporting Person, and 255,000 shares are subject to the Issuer's right to repurchase as of the date hereof.

F4 · 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: 0001585521-19-000040 · wf-form4_157308270830379.xml · nonDerivative · entry 1

Bawa Aparna · CIK 0001773301 · Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 322,693

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 $69.025 to $70.02. 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 · balance_after: The shares were issued pursuant to an option that was early exercised by the Reporting Person, and 255,000 shares are subject to the Issuer's right to repurchase as of the date hereof.

F4 · 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: 0001585521-19-000038 · wf-form4_157265210628685.xml · nonDerivative · entry 1

Benhorin Roy · CIK 0001773302 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 380,000

F1 · kind: The sale 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 $70.00 to $70.01. 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: 0001585521-19-000036 · wf-form4_157256465531056.xml · derivative · entry 1

Gassner Peter P · CIK 0001585821 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,461

Underlying: Class A Common Stock · 1,461 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Issuer's Class A Common Stock upon vesting.

F2 · derivative.exercise_date: The Reporting Person received an award of restricted stock units, 1/3 of which will vest on January 29, 2020, 1/3 of which will vest on April 29, 2020, and 1/3 of which will vest on the earlier of (i) July 29, 2020 or (ii) the day immediately preceding the date of the annual meeting of the Issuer's stockholders in 2020.

F2 · derivative.expiration_date: The Reporting Person received an award of restricted stock units, 1/3 of which will vest on January 29, 2020, 1/3 of which will vest on April 29, 2020, and 1/3 of which will vest on the earlier of (i) July 29, 2020 or (ii) the day immediately preceding the date of the annual meeting of the Issuer's stockholders in 2020.

SEC source: 0001585521-19-000034 · wf-form4_157247466087944.xml · derivative · entry 6

Pelosi Janine · CIK 0001773299 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 6,850 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 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 convert automatically 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.

F5 · 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 convert automatically 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.

F5 · 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 convert automatically 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: 0001585521-19-000034 · wf-form4_157247466087944.xml · derivative · entry 5

Pelosi Janine · CIK 0001773299 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,850

Underlying: Class A Common Stock · 6,850 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 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 convert automatically 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.

F5 · 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 convert automatically 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.

F5 · 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 convert automatically 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: 0001585521-19-000034 · wf-form4_157247466087944.xml · derivative · entry 4

Pelosi Janine · CIK 0001773299 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 443,150

Underlying: Class B Common Stock · 6,850 shares

Expires 2028-09-06

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.

F4 · derivative.exercise_date: 1/48 of the shares subject to the option vests in equal monthly installments commencing one month from July 11, 2018.

SEC source: 0001585521-19-000034 · wf-form4_157247466087944.xml · nonDerivative · entry 3

Pelosi Janine · CIK 0001773299 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 305,940

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 $63.67 to $64.15. 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: 0001585521-19-000034 · wf-form4_157247466087944.xml · nonDerivative · entry 2

Pelosi Janine · CIK 0001773299 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 311,664

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 $62.31 to $63.14. 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: 0001585521-19-000034 · wf-form4_157247466087944.xml · nonDerivative · entry 1

Pelosi Janine · CIK 0001773299 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 318,986

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: 0001585521-19-000032 · wf-form4_157196240373229.xml · nonDerivative · entry 1

Bawa Aparna · CIK 0001773301 · Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 340,000

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 $63.6150 to $64.2000. 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 · balance_after: The shares were issued pursuant to an option that was early exercised by the Reporting Person, and 262,500 shares are subject to the Issuer's right to repurchase as of the date hereof.

F4 · 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: 0001585521-19-000030 · wf-form4_157178171005743.xml · derivative · entry 7

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 11,067 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_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.

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: 0001585521-19-000030 · wf-form4_157178171005743.xml · derivative · entry 6

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,067

Underlying: Class A Common Stock · 11,067 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_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.

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: 0001585521-19-000030 · wf-form4_157178171005743.xml · derivative · entry 5

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 995,447

Underlying: Class B Common Stock · 11,067 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: 0001585521-19-000030 · wf-form4_157178171005743.xml · nonDerivative · entry 3

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Not disclosed

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 $65.83 to $66.71. 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: 0001585521-19-000030 · wf-form4_157178171005743.xml · nonDerivative · entry 2

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,670

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 $64.82 to $65.82. 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: 0001585521-19-000030 · wf-form4_157178171005743.xml · nonDerivative · entry 1

Steckelberg Kelly · CIK 0001364713 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,067

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: 0000899243-19-025725 · doc4.xml · derivative · entry 12

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, LP

Disclosed balance after: 1,102,049

Underlying: Class A Common Stock · 122,450 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 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.

F5 · 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.

F5 · 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.

F3 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · derivative · entry 11

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, LP

Disclosed balance after: 16,934,791

Underlying: Class A Common Stock · 1,881,643 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 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.

F5 · 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.

F5 · 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.

F3 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · derivative · entry 10

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 72,184

Underlying: Class A Common Stock · 8,021 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 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.

F5 · 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.

F5 · 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: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · derivative · entry 9

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 5,823,417

Underlying: Class A Common Stock · 647,046 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 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.

F5 · 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.

F5 · 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: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · nonDerivative · entry 8

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, LP

Disclosed balance after: 0

F4 · kind: Represents a pro rata distribution of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F3 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · nonDerivative · entry 7

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, LP

Disclosed balance after: 0

F4 · kind: Represents a pro rata distribution of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F3 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · nonDerivative · entry 6

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 0

F4 · kind: Represents a pro rata distribution of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F1 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · nonDerivative · entry 5

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 0

F4 · kind: Represents a pro rata distribution of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F1 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · nonDerivative · entry 4

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, LP

Disclosed balance after: 122,450

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 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · nonDerivative · entry 3

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, LP

Disclosed balance after: 1,881,643

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 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · nonDerivative · entry 2

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 8,021

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: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025725 · doc4.xml · nonDerivative · entry 1

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH VII PRINCIPALS FUND, L.P. · CIK 0001656513 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 647,046

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: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · derivative · entry 12

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, LP

Disclosed balance after: 1,102,049

Underlying: Class A Common Stock · 122,450 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 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.

F5 · 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.

F5 · 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.

F3 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · derivative · entry 11

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, LP

Disclosed balance after: 16,934,791

Underlying: Class A Common Stock · 1,881,643 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 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.

F5 · 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.

F5 · 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.

F3 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · derivative · entry 10

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 72,184

Underlying: Class A Common Stock · 8,021 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 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.

F5 · 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.

F5 · 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: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · derivative · entry 9

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 5,823,417

Underlying: Class A Common Stock · 647,046 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 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.

F5 · 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.

F5 · 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: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · nonDerivative · entry 8

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, LP

Disclosed balance after: 0

F4 · kind: Represents a pro rata distribution of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F3 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · nonDerivative · entry 7

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, LP

Disclosed balance after: 0

F4 · kind: Represents a pro rata distribution of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F3 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · nonDerivative · entry 6

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 0

F4 · kind: Represents a pro rata distribution of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F1 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · nonDerivative · entry 5

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 0

F4 · kind: Represents a pro rata distribution of Class A Common Stock of the Issuer to partners or members for no consideration and includes subsequent distributions by general partners or managing members to their respective partners or members.

F1 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · nonDerivative · entry 4

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, LP

Disclosed balance after: 122,450

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 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · nonDerivative · entry 3

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth Fund VII, LP

Disclosed balance after: 1,881,643

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 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · nonDerivative · entry 2

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth II Principals Fund, L.P.

Disclosed balance after: 8,021

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: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025723 · doc4.xml · nonDerivative · entry 1

SC US (TTGP), LTD. · CIK 0001607841 · 10% owner

LEONE DOUGLAS M · CIK 0001195580 · 10% owner

Abramson Michael Saul · CIK 0001766513 · 10% owner

SC Global Growth II Management, L.P. · CIK 0001743989 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH FUND II, L.P. · CIK 0001656515 · 10% owner

SEQUOIA CAPITAL GLOBAL GROWTH II PRINCIPALS FUND, L.P. · CIK 0001656516 · 10% owner

SCGF V Management, L.P. · CIK 0001552459 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND V, L.P. · CIK 0001528109 · 10% owner

SC U.S. Growth VII Management, L.P. · CIK 0001742978 · 10% owner

SEQUOIA CAPITAL U.S. GROWTH FUND VII, L.P. · CIK 0001656511 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital Global Growth Fund II, L.P.

Disclosed balance after: 647,046

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: SC US (TTGP), Ltd. is the general partner of SC Global Growth II Management, L.P., which is the general partner of each of Sequoia Capital Global Growth Fund II, L.P. and Sequoia Capital Global Growth II Principals Fund, L.P. or collectively, the SC GGFII Funds. As a result, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds. In addition, the directors and stockholders of SC US (TTGP), Ltd. who exercise voting and investment discretion with respect to the SC GGFII Funds are Messrs. Douglas M. Leone and Michael Abramson. As a result, and by virtue of the relationships described in this footnote, each such person may be deemed to share voting and dispositive power with respect to the shares held by the SC GGFII Funds.

F2 · ownership.nature: (Continued from footnote 1) Each of Messrs. Douglas M. Leone and Michael Abramson, SC US (TTGP), Ltd. and SC Global Growth II Management, L.P. disclaims beneficial ownership of the securities held by the SC GGFII Funds except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000899243-19-025722 · doc4.xml · derivative · entry 13

Eschenbach Carl M. · CIK 0001409324 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · Sequoia Capital U.S. Growth VII Principals Fund, LP

Disclosed balance after: 1,102,049

Underlying: Class A Common Stock · 122,450 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.

F8 · 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.

F8 · 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.

F8 · 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.

F4 · ownership.nature: SC US (TTGP), Ltd. is the general partner of SC U.S. Growth VII Management, L.P., which is the general partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund, LP or collectively, the SC US GFVII Funds. As a result, SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. may be deemed to share voting and dispositive power with respect to the shares held by the SC US GFVII Funds. Each of SC US (TTGP), Ltd. and SC U.S. Growth VII Management, L.P. disclaims beneficial ownership of the securities held by the SC US GFVII Funds except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

F5 · ownership.nature: The Reporting Person is a managing member of SC U.S. Growth VII Management, L.P. SC U.S. Growth VII Management, L.P. is the partner of each of Sequoia Capital U.S. Growth Fund VII, LP and Sequoia Capital U.S. Growth VII Principals Fund. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or any other purpose.