RCUS

SEC source: 0001209191-18-047133 · doc4.xml · nonDerivative · entry 3

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,923,074

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.75 to $13.25, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-18-047133 · doc4.xml · nonDerivative · entry 2

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,914,142

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.33 to $13.12, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-18-047133 · doc4.xml · nonDerivative · entry 1

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,900,842

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.68, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-18-046476 · doc4.xml · nonDerivative · entry 3

Jaen Juan C. · CIK 0001422996 · Director · President

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 2,744,240

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.61 to $11.86, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-18-046475 · doc4.xml · nonDerivative · entry 3

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,894,673

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.54 to $11.86, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-18-046476 · doc4.xml · nonDerivative · entry 2

Jaen Juan C. · CIK 0001422996 · Director · President

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 2,741,081

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.87 to $12.00, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-18-046475 · doc4.xml · nonDerivative · entry 2

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,891,394

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.86 to $12.00, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-18-046476 · doc4.xml · nonDerivative · entry 1

Jaen Juan C. · CIK 0001422996 · Director · President

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 2,738,502

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.41 to $12.12, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-18-046475 · doc4.xml · nonDerivative · entry 1

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,888,844

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.41 to $12.12, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0000899243-18-016209 · doc4.xml · derivative · entry 1

Jarrett Jennifer · CIK 0001671311 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,114

Underlying: Common Stock · 161,114 shares

Expires 2028-06-07

F1 · derivative.exercise_date: 1/48th of the shares of common stock subject to the option vest on the last day of the calendar month after May 31, 2018, and 1/48th of the shares subject to the option vest on the last day of the 47 calendar months immediately thereafter, subject to the Reporting Person's continued service to the Company.

SEC source: 0000899243-18-008009 · doc4.xml · derivative · entry 2

Hadley Harbor Master Investors (Cayman) II L.P. · CIK 0001703977 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,496,813 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.

F1 · derivative.exercise_price: The Series C Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock reported in the table above reflects a 3.96-for-1 reverse stock split that was effected in connection with the Issuer's initial public offering. The shares had no expiration date.

F1 · derivative.exercise_date: The Series C Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock reported in the table above reflects a 3.96-for-1 reverse stock split that was effected in connection with the Issuer's initial public offering. The shares had no expiration date.

F1 · derivative.expiration_date: The Series C Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock reported in the table above reflects a 3.96-for-1 reverse stock split that was effected in connection with the Issuer's initial public offering. The shares had no expiration date.

SEC source: 0000899243-18-008009 · doc4.xml · nonDerivative · entry 1

Hadley Harbor Master Investors (Cayman) II L.P. · CIK 0001703977 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,496,813

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 · price: The Series C Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock reported in the table above reflects a 3.96-for-1 reverse stock split that was effected in connection with the Issuer's initial public offering. The shares had no expiration date.

F1 · balance_after: The Series C Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering. The Series C Convertible Preferred Stock reported in the table above reflects a 3.96-for-1 reverse stock split that was effected in connection with the Issuer's initial public offering. The shares had no expiration date.

SEC source: 0000899243-18-007987 · doc4.xml · derivative · entry 6

Jaen Juan C. · CIK 0001422996 · Director · President

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 29,936 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F5 · derivative.underlying_shares: Represents shares of Series C Convertible Preferred Stock indirectly owned by the Reporting Person as a result of a trust's purchase of such shares from the Issuer on November 6, 2017 for $11.6915 per share.

SEC source: 0000899243-18-007987 · doc4.xml · derivative · entry 5

Jaen Juan C. · CIK 0001422996 · Director · President

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 125,012 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

SEC source: 0000899243-18-007987 · doc4.xml · derivative · entry 4

Jaen Juan C. · CIK 0001422996 · Director · President

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 2,020,202 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

SEC source: 0000899243-18-007987 · doc4.xml · nonDerivative · entry 2

Jaen Juan C. · CIK 0001422996 · Director · President

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 2,734,240

F3 · shares: Represents shares purchased in the Issuer's initial public offering.

SEC source: 0000899243-18-007987 · doc4.xml · nonDerivative · entry 1

Jaen Juan C. · CIK 0001422996 · Director · President

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 2,667,574

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 · shares: The total represents shares received upon conversion of shares of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

SEC source: 0000899243-18-007986 · doc4.xml · derivative · entry 7

KANEKO YASUNORI · CIK 0001277503 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 2,565 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

SEC source: 0000899243-18-007986 · doc4.xml · derivative · entry 6

KANEKO YASUNORI · CIK 0001277503 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 31,253 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

SEC source: 0000899243-18-007986 · doc4.xml · derivative · entry 5

KANEKO YASUNORI · CIK 0001277503 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Kaneko Investments, LLC

Disclosed balance after: 0

Underlying: Common Stock · 252,524 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

SEC source: 0000899243-18-007986 · doc4.xml · derivative · entry 4

KANEKO YASUNORI · CIK 0001277503 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Kaneko Capital, LLC

Disclosed balance after: 0

Underlying: Common Stock · 505,050 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

SEC source: 0000899243-18-007986 · doc4.xml · nonDerivative · entry 3

KANEKO YASUNORI · CIK 0001277503 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 96,948

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 · shares: The total represents shares received upon conversion of shares of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

SEC source: 0000899243-18-007986 · doc4.xml · nonDerivative · entry 2

KANEKO YASUNORI · CIK 0001277503 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Kaneko Investments, LLC

Disclosed balance after: 252,524

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 · shares: The total represents shares received upon conversion of shares of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

SEC source: 0000899243-18-007986 · doc4.xml · nonDerivative · entry 1

KANEKO YASUNORI · CIK 0001277503 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Kaneko Capital, LLC

Disclosed balance after: 505,050

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 · shares: The total represents shares received upon conversion of shares of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.Q

SEC source: 0000899243-18-007985 · doc4.xml · derivative · entry 6

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 82,966 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F5 · derivative.underlying_shares: Represents shares of Series C Convertible Preferred Stock indirectly owned by the Reporting Person as a result of a trust's purchase of such shares from the Issuer on November 6, 2017 for $11.6915 per share.

SEC source: 0000899243-18-007985 · doc4.xml · derivative · entry 5

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 125,012 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

SEC source: 0000899243-18-007985 · doc4.xml · derivative · entry 4

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 2,267,676 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

SEC source: 0000899243-18-007985 · doc4.xml · nonDerivative · entry 2

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,884,744

F3 · shares: Represents shares purchased in the Issuer's initial public offering.

SEC source: 0000899243-18-007985 · doc4.xml · nonDerivative · entry 1

ROSEN TERRY J · CIK 0001182473 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,818,078

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 · shares: The total represents shares received upon conversion of shares of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

SEC source: 0000899243-18-007983 · doc4.xml · derivative · entry 3

FALBERG KATHRYN E · CIK 0001206977 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Common Stock · 17,106 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.

F2 · derivative.exercise_price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F5 · derivative.underlying_shares: Represents shares of Series C Convertible Preferred Stock indirectly owned by the Reporting Person as a result of a trust's purchase of such shares from the Issuer on November 6, 2017 for $11.6915 per share.

SEC source: 0000899243-18-007983 · doc4.xml · nonDerivative · entry 2

FALBERG KATHRYN E · CIK 0001206977 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,504

F3 · shares: Represents shares purchased in the Issuer's initial public offering.

F4 · balance_after: The total includes 25,252 shares of Common Stock purchased by the Reporting Person on September 21, 2017 for $2.58 per share pursuant to the exercise of an option granted on September 19, 2017 and an additional 25,252 shares of Common Stock purchased on January 25, 2018 for $5.39 per share pursuant to the exercise of a separate option granted on January 4, 2018.

SEC source: 0000899243-18-007983 · doc4.xml · nonDerivative · entry 1

FALBERG KATHRYN E · CIK 0001206977 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 17,106

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 · shares: The total represents shares received upon conversion of shares of Series C Convertible Preferred Stock.

F2 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

SEC source: 0001720702-18-000002 · primary_doc.xml · derivative · entry 8

COLUMN GROUP II, LP · CIK 0001600420 · 10% owner

Column Group II GP, LP · CIK 0001645333 · 10% owner

Ponoi Management, LLC · CIK 0001720702 · 10% owner

PONOI CAPITAL, LP · CIK 0001707230 · 10% owner

GOEDDEL DAVID V · CIK 0001182464 · 10% owner

Svennilson Peter · CIK 0001606074 · 10% owner

Kutzkey Tim · CIK 0001614186 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 470,427 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F3 · ownership.direct: The securities are directly held by Ponoi Capital, LP ("Ponoi LP") and indirectly held by Ponoi Management, LLC ("Ponoi LLC") the general partner of Ponoi LP. Ponoi LLC has voting and dispositive power with respect to these shares. The individual managing partners of Ponoi LLC are Peter Svennilson, David Goeddel and Tim Kutzkey, who may be deemed to have shared voting, investment and dispositive power with respect to these shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares.

SEC source: 0001720702-18-000002 · primary_doc.xml · derivative · entry 7

COLUMN GROUP II, LP · CIK 0001600420 · 10% owner

Column Group II GP, LP · CIK 0001645333 · 10% owner

Ponoi Management, LLC · CIK 0001720702 · 10% owner

PONOI CAPITAL, LP · CIK 0001707230 · 10% owner

GOEDDEL DAVID V · CIK 0001182464 · 10% owner

Svennilson Peter · CIK 0001606074 · 10% owner

Kutzkey Tim · CIK 0001614186 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,070,423 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.

F1 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F2 · ownership.direct: The securities are directly held by The Column Group II, LP ("TCG II") and indirectly held by The Column Group II GP, LP ("TCG II GP") the general partner of TCG II. TCG II GP has voting and dispositive power with respect to these shares. The individual managing partners of TCG II GP are Peter Svennilson and David Goeddel, who may be deemed to have shared voting, investment and dispositive power with respect to these shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares

SEC source: 0001720702-18-000002 · primary_doc.xml · derivative · entry 6

COLUMN GROUP II, LP · CIK 0001600420 · 10% owner

Column Group II GP, LP · CIK 0001645333 · 10% owner

Ponoi Management, LLC · CIK 0001720702 · 10% owner

PONOI CAPITAL, LP · CIK 0001707230 · 10% owner

GOEDDEL DAVID V · CIK 0001182464 · 10% owner

Svennilson Peter · CIK 0001606074 · 10% owner

Kutzkey Tim · CIK 0001614186 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,642,763 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.

F1 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F2 · ownership.direct: The securities are directly held by The Column Group II, LP ("TCG II") and indirectly held by The Column Group II GP, LP ("TCG II GP") the general partner of TCG II. TCG II GP has voting and dispositive power with respect to these shares. The individual managing partners of TCG II GP are Peter Svennilson and David Goeddel, who may be deemed to have shared voting, investment and dispositive power with respect to these shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares

SEC source: 0001720702-18-000002 · primary_doc.xml · derivative · entry 5

COLUMN GROUP II, LP · CIK 0001600420 · 10% owner

Column Group II GP, LP · CIK 0001645333 · 10% owner

Ponoi Management, LLC · CIK 0001720702 · 10% owner

PONOI CAPITAL, LP · CIK 0001707230 · 10% owner

GOEDDEL DAVID V · CIK 0001182464 · 10% owner

Svennilson Peter · CIK 0001606074 · 10% owner

Kutzkey Tim · CIK 0001614186 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,767,676 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.

F1 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F2 · ownership.direct: The securities are directly held by The Column Group II, LP ("TCG II") and indirectly held by The Column Group II GP, LP ("TCG II GP") the general partner of TCG II. TCG II GP has voting and dispositive power with respect to these shares. The individual managing partners of TCG II GP are Peter Svennilson and David Goeddel, who may be deemed to have shared voting, investment and dispositive power with respect to these shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares

SEC source: 0001720702-18-000002 · primary_doc.xml · nonDerivative · entry 4

COLUMN GROUP II, LP · CIK 0001600420 · 10% owner

Column Group II GP, LP · CIK 0001645333 · 10% owner

Ponoi Management, LLC · CIK 0001720702 · 10% owner

PONOI CAPITAL, LP · CIK 0001707230 · 10% owner

GOEDDEL DAVID V · CIK 0001182464 · 10% owner

Svennilson Peter · CIK 0001606074 · 10% owner

Kutzkey Tim · CIK 0001614186 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 470,427

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 · price: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F3 · ownership.direct: The securities are directly held by Ponoi Capital, LP ("Ponoi LP") and indirectly held by Ponoi Management, LLC ("Ponoi LLC") the general partner of Ponoi LP. Ponoi LLC has voting and dispositive power with respect to these shares. The individual managing partners of Ponoi LLC are Peter Svennilson, David Goeddel and Tim Kutzkey, who may be deemed to have shared voting, investment and dispositive power with respect to these shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares.

SEC source: 0001720702-18-000002 · primary_doc.xml · nonDerivative · entry 3

COLUMN GROUP II, LP · CIK 0001600420 · 10% owner

Column Group II GP, LP · CIK 0001645333 · 10% owner

Ponoi Management, LLC · CIK 0001720702 · 10% owner

PONOI CAPITAL, LP · CIK 0001707230 · 10% owner

GOEDDEL DAVID V · CIK 0001182464 · 10% owner

Svennilson Peter · CIK 0001606074 · 10% owner

Kutzkey Tim · CIK 0001614186 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,070,423

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 · price: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F2 · ownership.direct: The securities are directly held by The Column Group II, LP ("TCG II") and indirectly held by The Column Group II GP, LP ("TCG II GP") the general partner of TCG II. TCG II GP has voting and dispositive power with respect to these shares. The individual managing partners of TCG II GP are Peter Svennilson and David Goeddel, who may be deemed to have shared voting, investment and dispositive power with respect to these shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares

SEC source: 0001720702-18-000002 · primary_doc.xml · nonDerivative · entry 2

COLUMN GROUP II, LP · CIK 0001600420 · 10% owner

Column Group II GP, LP · CIK 0001645333 · 10% owner

Ponoi Management, LLC · CIK 0001720702 · 10% owner

PONOI CAPITAL, LP · CIK 0001707230 · 10% owner

GOEDDEL DAVID V · CIK 0001182464 · 10% owner

Svennilson Peter · CIK 0001606074 · 10% owner

Kutzkey Tim · CIK 0001614186 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,642,763

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 · price: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F2 · ownership.direct: The securities are directly held by The Column Group II, LP ("TCG II") and indirectly held by The Column Group II GP, LP ("TCG II GP") the general partner of TCG II. TCG II GP has voting and dispositive power with respect to these shares. The individual managing partners of TCG II GP are Peter Svennilson and David Goeddel, who may be deemed to have shared voting, investment and dispositive power with respect to these shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares

SEC source: 0001720702-18-000002 · primary_doc.xml · nonDerivative · entry 1

COLUMN GROUP II, LP · CIK 0001600420 · 10% owner

Column Group II GP, LP · CIK 0001645333 · 10% owner

Ponoi Management, LLC · CIK 0001720702 · 10% owner

PONOI CAPITAL, LP · CIK 0001707230 · 10% owner

GOEDDEL DAVID V · CIK 0001182464 · 10% owner

Svennilson Peter · CIK 0001606074 · 10% owner

Kutzkey Tim · CIK 0001614186 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,767,676

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 · price: Immediately prior to the closing of the Issuer's initial public offering of its common stock, each share of Series A, Series B and Series C preferred stock automatically converted into one share of common stock. The Series A, Series B and Series C preferred stock had no expiration date.

F2 · ownership.direct: The securities are directly held by The Column Group II, LP ("TCG II") and indirectly held by The Column Group II GP, LP ("TCG II GP") the general partner of TCG II. TCG II GP has voting and dispositive power with respect to these shares. The individual managing partners of TCG II GP are Peter Svennilson and David Goeddel, who may be deemed to have shared voting, investment and dispositive power with respect to these shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares

SEC source: 0000899243-18-007988 · doc4.xml · derivative · entry 2

GV 2017 GP, L.L.C. · CIK 0001733338 · 10% owner

GV 2017 GP, L.P. · CIK 0001733339 · 10% owner

GV 2017, L.P. · CIK 0001733340 · 10% owner

Alphabet Inc. · CIK 0001652044 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By GV 2017, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,924,474 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: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F3 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F3 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F3 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · ownership.nature: The reported security is directly held by GV 2017, L.P. GV 2017 GP, L.P., the general partner of GV 2017, L.P., GV 2017 GP, L.L.C., the general partner of GV 2017 GP, L.P., Alphabet Holdings LLC, the sole member of GV 2017 GP, L.L.C., XXVI Holdings Inc., the managing member of Alphabet Holdings LLC, and Alphabet Inc., the sole stockholder of XXVI Holdings Inc., may each be deemed to have sole power to vote or dispose of these shares. Each of GV 2017 GP, L.P., GV 2017 GP, L.L.C., Alphabet Holdings LLC, XXVI Holdings Inc. and Alphabet Inc. disclaim beneficial ownership of the shares except to the extent of any pecuniary interest therein.

SEC source: 0000899243-18-007988 · doc4.xml · nonDerivative · entry 1

GV 2017 GP, L.L.C. · CIK 0001733338 · 10% owner

GV 2017 GP, L.P. · CIK 0001733339 · 10% owner

GV 2017, L.P. · CIK 0001733340 · 10% owner

Alphabet Inc. · CIK 0001652044 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By GV 2017, L.P.

Disclosed balance after: 1,924,474

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 · shares: The total represents shares received upon conversion of shares of Series C Convertible Preferred Stock.

F3 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · ownership.nature: The reported security is directly held by GV 2017, L.P. GV 2017 GP, L.P., the general partner of GV 2017, L.P., GV 2017 GP, L.L.C., the general partner of GV 2017 GP, L.P., Alphabet Holdings LLC, the sole member of GV 2017 GP, L.L.C., XXVI Holdings Inc., the managing member of Alphabet Holdings LLC, and Alphabet Inc., the sole stockholder of XXVI Holdings Inc., may each be deemed to have sole power to vote or dispose of these shares. Each of GV 2017 GP, L.P., GV 2017 GP, L.L.C., Alphabet Holdings LLC, XXVI Holdings Inc. and Alphabet Inc. disclaim beneficial ownership of the shares except to the extent of any pecuniary interest therein.

SEC source: 0000899243-18-007990 · doc4.xml · derivative · entry 2

GV 2016 GP, L.L.C. · CIK 0001722201 · 10% owner

GV 2016 GP, L.P. · CIK 0001722204 · 10% owner

GV 2016, L.P. · CIK 0001721789 · 10% owner

Alphabet Inc. · CIK 0001652044 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By GV 2016, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 3,125,312 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: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F3 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F3 · derivative.exercise_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F3 · derivative.expiration_date: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · ownership.nature: The reported security is directly held by GV 2016, L.P. GV 2016 GP, L.P., the general partner of GV 2016, L.P., GV 2016 GP, L.L.C., the general partner of GV 2016 GP, L.P., Alphabet Holdings LLC, the sole member of GV 2016 GP, L.L.C., XXVI Holdings Inc., the managing member of Alphabet Holdings LLC, and Alphabet Inc., the sole stockholder of XXVI Holdings Inc., may each be deemed to have sole power to vote or dispose of these shares. Each of GV 2016 GP, L.P., GV 2016 GP, L.L.C., Alphabet Holdings LLC, XXVI Holdings Inc. and Alphabet Inc. disclaim beneficial ownership of the shares except to the extent of any pecuniary interest therein.

SEC source: 0000899243-18-007990 · doc4.xml · nonDerivative · entry 1

GV 2016 GP, L.L.C. · CIK 0001722201 · 10% owner

GV 2016 GP, L.P. · CIK 0001722204 · 10% owner

GV 2016, L.P. · CIK 0001721789 · 10% owner

Alphabet Inc. · CIK 0001652044 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By GV 2016, L.P.

Disclosed balance after: 3,125,312

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 · shares: The total represents shares received upon conversion of shares of Series B Convertible Preferred Stock.

F3 · price: The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date.

F2 · ownership.nature: The reported security is directly held by GV 2016, L.P. GV 2016 GP, L.P., the general partner of GV 2016, L.P., GV 2016 GP, L.L.C., the general partner of GV 2016 GP, L.P., Alphabet Holdings LLC, the sole member of GV 2016 GP, L.L.C., XXVI Holdings Inc., the managing member of Alphabet Holdings LLC, and Alphabet Inc., the sole stockholder of XXVI Holdings Inc., may each be deemed to have sole power to vote or dispose of these shares. Each of GV 2016 GP, L.P., GV 2016 GP, L.L.C., Alphabet Holdings LLC, XXVI Holdings Inc. and Alphabet Inc. disclaim beneficial ownership of the shares except to the extent of any pecuniary interest therein.