Deeter Byron B

SEC source: 0000950170-24-137478 · ownership.xml · derivative · entry 4

Deeter Byron B · CIK 0001506450 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 190,151 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F4 · price: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F4 · derivative.exercise_date: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F4 · derivative.expiration_date: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of the Issuer's Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F3 · ownership.nature: Certain affiliates of the Bessemer Entities own a material interest in Cloud All Star Fund GP, LLC, the general partner of CASF, which has voting and dispositive power with respect to the shares held by CASF. 15 Angels is a subsidiary of Bessemer VIII Institutional. Deer VIII & Co. L.P. ("Deer VIII L.P.") is the general partner of Bessemer VIII and Bessemer Institutional VIII. Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. The Reporting Person is a director of Deer VIII Ltd. and holds voting and dispositive power for the Bessemer Entities. Investment and voting decisions with respect to the securities held by the Bessemer Entities are made by the directors of Deer VIII Ltd. acting as an investment committee. The Reporting Person disclaims beneficial ownership of the shares held by the Bessemer Entities and CASF except to the extent of his pecuniary interest, if any, in such securities through any indirect interest in the Bessemer Entities and CASF.

F7 · ownership.nature: Consists of 103,822 shares of Series D Preferred Stock held by Bessemer Institutional VIII and 86,329 shares of Series D Preferred Stock held by Bessemer VIII.

SEC source: 0000950170-24-137478 · ownership.xml · derivative · entry 3

Deeter Byron B · CIK 0001506450 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 343,744 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F4 · price: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F4 · derivative.exercise_date: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F4 · derivative.expiration_date: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of the Issuer's Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F3 · ownership.nature: Certain affiliates of the Bessemer Entities own a material interest in Cloud All Star Fund GP, LLC, the general partner of CASF, which has voting and dispositive power with respect to the shares held by CASF. 15 Angels is a subsidiary of Bessemer VIII Institutional. Deer VIII & Co. L.P. ("Deer VIII L.P.") is the general partner of Bessemer VIII and Bessemer Institutional VIII. Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. The Reporting Person is a director of Deer VIII Ltd. and holds voting and dispositive power for the Bessemer Entities. Investment and voting decisions with respect to the securities held by the Bessemer Entities are made by the directors of Deer VIII Ltd. acting as an investment committee. The Reporting Person disclaims beneficial ownership of the shares held by the Bessemer Entities and CASF except to the extent of his pecuniary interest, if any, in such securities through any indirect interest in the Bessemer Entities and CASF.

F6 · ownership.nature: Consists of 187,684 shares of Series C Preferred Stock held by Bessemer Institutional VIII and 156,060 shares of Series C Preferred Stock held by Bessemer VIII.

SEC source: 0000950170-24-137478 · ownership.xml · derivative · entry 2

Deeter Byron B · CIK 0001506450 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 8,135,210 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F4 · price: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F4 · derivative.exercise_date: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F4 · derivative.expiration_date: Each share of Series A-3 Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock automatically converted into Common Stock on a 1:1 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series F Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date. Each share of Series G Preferred Stock automatically converted into Common Stock on an approximately 1:1.05 basis immediately prior to the closing of the Issuer's initial public offering of Class A Common Stock and has no expiration date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of the Issuer's Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F3 · ownership.nature: Certain affiliates of the Bessemer Entities own a material interest in Cloud All Star Fund GP, LLC, the general partner of CASF, which has voting and dispositive power with respect to the shares held by CASF. 15 Angels is a subsidiary of Bessemer VIII Institutional. Deer VIII & Co. L.P. ("Deer VIII L.P.") is the general partner of Bessemer VIII and Bessemer Institutional VIII. Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. The Reporting Person is a director of Deer VIII Ltd. and holds voting and dispositive power for the Bessemer Entities. Investment and voting decisions with respect to the securities held by the Bessemer Entities are made by the directors of Deer VIII Ltd. acting as an investment committee. The Reporting Person disclaims beneficial ownership of the shares held by the Bessemer Entities and CASF except to the extent of his pecuniary interest, if any, in such securities through any indirect interest in the Bessemer Entities and CASF.

F5 · ownership.nature: Consists of 4,441,825 shares of Series A-3 Preferred Stock held by Bessemer Institutional VIII and 3,693,385 shares of Series A-3 Preferred Stock held by Bessemer VIII.

SEC source: 0000950170-24-137478 · ownership.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 9,003,571

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 · security: Pursuant to a reclassification exempt under Rule 16b-7, each share of the Issuer's Common Stock was automatically reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock.

F2 · ownership.nature: Consists of 214,268 shares of Class A Common Stock held by 15 Angels II LLC ("15 Angels"), 4,797,611 shares of Class A Common Stock heldy by Bessemer Venture Partners VIII Institutional LP ("Bessemer Institutional VIII"), 3,989,222 shares of Class A Common Stock held by Bessemer Venture Partners VIII, L.P. ("Bessemer VIII" and, together with Bessemer Institutional VIII and 15 Angels, the "Bessemer Entities"), and 2,470 shares of Common Stock held by Cloud All Star Fund, L.P. ("CASF").

F3 · ownership.nature: Certain affiliates of the Bessemer Entities own a material interest in Cloud All Star Fund GP, LLC, the general partner of CASF, which has voting and dispositive power with respect to the shares held by CASF. 15 Angels is a subsidiary of Bessemer VIII Institutional. Deer VIII & Co. L.P. ("Deer VIII L.P.") is the general partner of Bessemer VIII and Bessemer Institutional VIII. Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. The Reporting Person is a director of Deer VIII Ltd. and holds voting and dispositive power for the Bessemer Entities. Investment and voting decisions with respect to the securities held by the Bessemer Entities are made by the directors of Deer VIII Ltd. acting as an investment committee. The Reporting Person disclaims beneficial ownership of the shares held by the Bessemer Entities and CASF except to the extent of his pecuniary interest, if any, in such securities through any indirect interest in the Bessemer Entities and CASF.

SEC source: 0000950170-24-071041 · ownership.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,073

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000950170-24-033498 · ownership.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,853

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-23-020662 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,634

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000950170-23-048890 · ownership.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,458

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-23-015573 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,242

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-23-009040 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,906

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-22-039043 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,783

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-22-031533 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,235

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-22-023077 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,240

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-22-011397 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,514

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-21-048804 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,088

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-21-036472 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,829

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs reported vested immediately on the date of grant.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

SEC source: 0000899243-20-015480 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,621

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs shall vest as follows: 100% of the RSUs shall vest on the earlier of June 3, 2021 or the date of the 2021 Annual Stockholder Meeting of the Issuer.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs shall vest as follows: 100% of the RSUs shall vest on the earlier of June 3, 2021 or the date of the 2021 Annual Stockholder Meeting of the Issuer.

F3 · balance_after: Includes (i) 14,123 shares of Class A Common Stock and (ii) 1,498 RSUs previously granted to the Reporting Person, each of which units represents a contingent right to receive one share of Class A Common Stock of Twilio upon vesting.

F1 · ownership.direct: The shares reported in this transaction represent Restricted Stock Units ("RSUs"), each RSU represents the contingent right to receive one share of the Issuer's Class A common stock. The RSUs shall vest as follows: 100% of the RSUs shall vest on the earlier of June 3, 2021 or the date of the 2021 Annual Stockholder Meeting of the Issuer.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F3 · ownership.direct: Includes (i) 14,123 shares of Class A Common Stock and (ii) 1,498 RSUs previously granted to the Reporting Person, each of which units represents a contingent right to receive one share of Class A Common Stock of Twilio upon vesting.

SEC source: 0000899243-19-004329 · doc4.xml · nonDerivative · entry 2

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 316,487

F3 · ownership.nature: These shares are held by the Deeter Trust.

SEC source: 0000899243-19-028297 · doc4.xml · nonDerivative · entry 2

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · shares: On November 26, 2019 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII L.P. ("BVP VIII", and together with BVP VIII Inst, the "BVP VIII Funds") sold 1,678 and 2,018 shares, respectively, of Class A Common Stock of Twilio (the "BVP VIII Fund Shares"). The BVP VIII Fund Shares were sold in multiple executions at a price per share ranging from $103.05 to $103.18, with an average execution price per share of $103.11. Each of the BVP VIII Funds hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions. After the reported transaction, none of the BVP VIII Funds held any shares of Class A Common Stock of the Issuer.

F2 · price: On November 26, 2019 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII L.P. ("BVP VIII", and together with BVP VIII Inst, the "BVP VIII Funds") sold 1,678 and 2,018 shares, respectively, of Class A Common Stock of Twilio (the "BVP VIII Fund Shares"). The BVP VIII Fund Shares were sold in multiple executions at a price per share ranging from $103.05 to $103.18, with an average execution price per share of $103.11. Each of the BVP VIII Funds hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions. After the reported transaction, none of the BVP VIII Funds held any shares of Class A Common Stock of the Issuer.

F2 · acquired: On November 26, 2019 Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII L.P. ("BVP VIII", and together with BVP VIII Inst, the "BVP VIII Funds") sold 1,678 and 2,018 shares, respectively, of Class A Common Stock of Twilio (the "BVP VIII Fund Shares"). The BVP VIII Fund Shares were sold in multiple executions at a price per share ranging from $103.05 to $103.18, with an average execution price per share of $103.11. Each of the BVP VIII Funds hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions. After the reported transaction, none of the BVP VIII Funds held any shares of Class A Common Stock of the Issuer.

F1 · balance_after: On November 26, 2019 Bessemer Venture Partners VII L.P. ("BVP VII"), Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst") BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "BVP VII Funds") sold 2,323, 1,016, 3,920, and 143 shares, respectively, of Class A Common Stock of Twilio (the "BVP VII Fund Shares"). The BVP VII Fund Shares were sold in multiple executions at a price per share ranging from $103.05 to $103.18, with an average execution price per share of $103.11. Each of the BVP VII Funds hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions. After the reported transaction, none of the BVP VII Funds held any shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: Byron Deeter is a director of Twilio and is a director of Deer VIII Ltd. Mr. Deeter also is a director of Deer VII & Co. Ltd. ("Deer VII Ltd."), which is the general partner of Deer VII LP, which is the general partner of the BVP VII Funds (together with Deer VII Ltd. and Deer VII LP, the "BVP VII Entities"). Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio. Mr. Deeter disclaims beneficial ownership of the securities held by the BVP VIII Funds and BVP VII Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII LP, his indirect limited partnership interest in the BVP VIII Funds, his interest in Deer VII Ltd, his interest in Deer VII LP and his indirect limited partnership interest in the BVP VII Funds

F4 · ownership.nature: Deer VII Ltd. and Deer VII LP disclaim beneficial ownership of the securities held by the BVP VII Funds, and this report shall not be deemed an admission that Deer VII Ltd. and Deer VII LP are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the BVP VII Funds.

SEC source: 0000899243-19-028297 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · shares: On November 26, 2019 Bessemer Venture Partners VII L.P. ("BVP VII"), Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst") BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "BVP VII Funds") sold 2,323, 1,016, 3,920, and 143 shares, respectively, of Class A Common Stock of Twilio (the "BVP VII Fund Shares"). The BVP VII Fund Shares were sold in multiple executions at a price per share ranging from $103.05 to $103.18, with an average execution price per share of $103.11. Each of the BVP VII Funds hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions. After the reported transaction, none of the BVP VII Funds held any shares of Class A Common Stock of the Issuer.

F1 · price: On November 26, 2019 Bessemer Venture Partners VII L.P. ("BVP VII"), Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst") BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "BVP VII Funds") sold 2,323, 1,016, 3,920, and 143 shares, respectively, of Class A Common Stock of Twilio (the "BVP VII Fund Shares"). The BVP VII Fund Shares were sold in multiple executions at a price per share ranging from $103.05 to $103.18, with an average execution price per share of $103.11. Each of the BVP VII Funds hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions. After the reported transaction, none of the BVP VII Funds held any shares of Class A Common Stock of the Issuer.

F1 · acquired: On November 26, 2019 Bessemer Venture Partners VII L.P. ("BVP VII"), Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst") BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "BVP VII Funds") sold 2,323, 1,016, 3,920, and 143 shares, respectively, of Class A Common Stock of Twilio (the "BVP VII Fund Shares"). The BVP VII Fund Shares were sold in multiple executions at a price per share ranging from $103.05 to $103.18, with an average execution price per share of $103.11. Each of the BVP VII Funds hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions. After the reported transaction, none of the BVP VII Funds held any shares of Class A Common Stock of the Issuer.

F1 · balance_after: On November 26, 2019 Bessemer Venture Partners VII L.P. ("BVP VII"), Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst") BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "BVP VII Funds") sold 2,323, 1,016, 3,920, and 143 shares, respectively, of Class A Common Stock of Twilio (the "BVP VII Fund Shares"). The BVP VII Fund Shares were sold in multiple executions at a price per share ranging from $103.05 to $103.18, with an average execution price per share of $103.11. Each of the BVP VII Funds hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions. After the reported transaction, none of the BVP VII Funds held any shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: Byron Deeter is a director of Twilio and is a director of Deer VIII Ltd. Mr. Deeter also is a director of Deer VII & Co. Ltd. ("Deer VII Ltd."), which is the general partner of Deer VII LP, which is the general partner of the BVP VII Funds (together with Deer VII Ltd. and Deer VII LP, the "BVP VII Entities"). Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio. Mr. Deeter disclaims beneficial ownership of the securities held by the BVP VIII Funds and BVP VII Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII LP, his indirect limited partnership interest in the BVP VIII Funds, his interest in Deer VII Ltd, his interest in Deer VII LP and his indirect limited partnership interest in the BVP VII Funds

F4 · ownership.nature: Deer VII Ltd. and Deer VII LP disclaim beneficial ownership of the securities held by the BVP VII Funds, and this report shall not be deemed an admission that Deer VII Ltd. and Deer VII LP are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the BVP VII Funds.

SEC source: 0000899243-19-027814 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 472,696

F1 · shares: On November 19, 2019 the Byron B. Deeter and Allison K. Deeter Trustees UTD July 28, 2000 (the "Deeter Trust") sold 30,000 shares of Class A Common Stock of Twilio (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $102.68 to $103.25, with an average execution price per share of $102.91. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F1 · price: On November 19, 2019 the Byron B. Deeter and Allison K. Deeter Trustees UTD July 28, 2000 (the "Deeter Trust") sold 30,000 shares of Class A Common Stock of Twilio (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $102.68 to $103.25, with an average execution price per share of $102.91. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F2 · balance_after: Includes 37,124 shares of Class A Common Stock received by the Deeter Trust in one or more pro rata distributions-in-kind from Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst"), Bessemer Venture Partners VIII L.P. ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), Bessemer Venture Partners VII L.P. ("BVP VII"), Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), 15 Angels LLC ("BVP 15A"), Deer VII & Co. L.P. ("Deer VII LP") and Deer VIII & Co. L.P. ("Deer VIII LP") on August 6, 2019, which distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3 · ownership.nature: These shares are held by the Deeter Trust.

SEC source: 0000899243-19-017698 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,123

F1 · shares: The shares reported in this transaction represent Restricted Stock Units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. The RSUs shall vest as follows: 100% of the RSUs shall vest on the earlier of June 18, 2020 or the date of the 2020 Annual Stockholder Meeting of the Issuer.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · price: The shares reported in this transaction represent Restricted Stock Units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. The RSUs shall vest as follows: 100% of the RSUs shall vest on the earlier of June 18, 2020 or the date of the 2020 Annual Stockholder Meeting of the Issuer.

F1 · balance_after: The shares reported in this transaction represent Restricted Stock Units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. The RSUs shall vest as follows: 100% of the RSUs shall vest on the earlier of June 18, 2020 or the date of the 2020 Annual Stockholder Meeting of the Issuer.

F2 · balance_after: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F3 · balance_after: As of the date of this filing, 483,951 shares of Class B Common Stock are held by Bessemer Venture Partners VII L.P. ("BVP VII"), 211,729 shares of Class B Common Stock are held by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 816,668 shares of Class B Common Stock are held by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 29,977 shares of Class B Common Stock are held by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "BVP VII Funds"). Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F3 · ownership.direct: As of the date of this filing, 483,951 shares of Class B Common Stock are held by Bessemer Venture Partners VII L.P. ("BVP VII"), 211,729 shares of Class B Common Stock are held by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 816,668 shares of Class B Common Stock are held by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), and 29,977 shares of Class B Common Stock are held by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst, and BVP VII SOF, the "BVP VII Funds"). Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date.

F5 · ownership.direct: Byron Deeter is a director of Twilio and is a director of Deer VIII Ltd. Mr. Deeter also is a director of Deer VII & Co. Ltd. ("Deer VII Ltd."), which is the general partner of Deer VII LP, which is the general partner of the BVP VII Funds (together with Deer VII Ltd. and Deer VII LP, the "BVP VII Entities"). Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio. Mr. Deeter disclaims beneficial ownership of the securities held by the BVP VIII Funds and BVP VII Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII LP, his indirect limited partnership interest in the BVP VIII Funds, his interest in Deer VII Ltd, his interest in Deer VII LP or his indirect limited partnership interest in the BVP VII Funds.

F6 · ownership.direct: Deer VII Ltd. and Deer VII LP disclaim beneficial ownership of the securities held by the BVP VII Funds, and this report shall not be deemed an admission that Deer VII Ltd. and Deer VII LP are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the BVP VII Funds.

SEC source: 0000899243-19-004329 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 326,487

F1 · shares: On February 15, 2019 the Byron B. Deeter and Allison K. Deeter Trustees UTD July 28, 2000 (the "Deeter Trust") sold 74,993 shares of Class A Common Stock of Twilio (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $106.19 to $107.01, with an average execution price per share of $106.62. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F1 · price: On February 15, 2019 the Byron B. Deeter and Allison K. Deeter Trustees UTD July 28, 2000 (the "Deeter Trust") sold 74,993 shares of Class A Common Stock of Twilio (the "Shares"). The Shares were sold in multiple executions at a price per share ranging from $106.19 to $107.01, with an average execution price per share of $106.62. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding such individual executions.

F2 · balance_after: Includes 72,305 shares of Class A Common Stock received by the Deeter Trust in one or more pro rata distributions-in-kind from Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst"), Bessemer Venture Partners VIII L.P. ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), Bessemer Venture Partners VII L.P. ("BVP VII"), Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP Special Opportunity Fund VII L.P. ("BVP VII SOF"), 15 Angels LLC ("BVP 15A"), Deer VII & Co. L.P. ("Deer VII LP") and Deer VIII & Co. L.P. ("Deer VIII LP") on February 14, 2019, which distributions were made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3 · ownership.nature: These shares are held by the Deeter Trust.

SEC source: 0001209191-19-007458 · doc4.xml · nonDerivative · entry 2

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F1 · price: Disposed of pursuant to the Agreement and Plan of Merger and Reorganization dated as of October 15, 2018, as amended on December 18, 2018 (the "Merger Agreement", and the transactions contemplated therein, the "Merger"), by and among the Issuer, Twilio Inc. ("Twilio") and Topaz Merger Subsidiary, Inc., whereby each share of Issuer common stock was canceled in exchange for 0.485 of a share of Twilio Class A Common Stock, with fractional shares being paid in cash.

F4 · price: Represents 3,466,721 and 2,882,587 shares disposed of by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII L.P. ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), respectively, pursuant to the Merger Agreement. At the effective time of the Merger, such shares converted into a right to receive 1,681,359 and 1,398,054 shares of Class A Common Stock of Twilio, respectively.

F4 · ownership.nature: Represents 3,466,721 and 2,882,587 shares disposed of by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII L.P. ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), respectively, pursuant to the Merger Agreement. At the effective time of the Merger, such shares converted into a right to receive 1,681,359 and 1,398,054 shares of Class A Common Stock of Twilio, respectively.

F5 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer VIII L.P."), which is the general partner of the BVP VIII Funds. Mr. Deeter is a director of Deer VIII Ltd. Mr. Deeter disclaims beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII L.P., and his indirect limited partnership interest in the BVP VIII Funds.

SEC source: 0001209191-19-007458 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · price: Disposed of pursuant to the Agreement and Plan of Merger and Reorganization dated as of October 15, 2018, as amended on December 18, 2018 (the "Merger Agreement", and the transactions contemplated therein, the "Merger"), by and among the Issuer, Twilio Inc. ("Twilio") and Topaz Merger Subsidiary, Inc., whereby each share of Issuer common stock was canceled in exchange for 0.485 of a share of Twilio Class A Common Stock, with fractional shares being paid in cash.

F2 · price: Includes 5,651 restricted stock units (each, an "RSU") held by the Reporting Person that at the effective time of the Merger were cancelled and converted into a right to receive 2,740 fully-vested shares of Twilio Class A Common Stock. Also includes 38,368 shares of Issuer common stock previously received by the Reporting Person from the BVP VIII Funds (as defined below) pursuant to one or more pro-rata distributions made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3 · price: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to RSU shares or any proceeds from the sale thereof.

SEC source: 0000899243-19-002691 · doc4.xml · nonDerivative · entry 2

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,079,413

F4 · shares: Represents 1,681,359 and 1,398,054 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII .L.P ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), respectively, pursuant to the Merger Agreement.

F4 · price: Represents 1,681,359 and 1,398,054 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII .L.P ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), respectively, pursuant to the Merger Agreement.

F4 · ownership.nature: Represents 1,681,359 and 1,398,054 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII .L.P ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), respectively, pursuant to the Merger Agreement.

F5 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer VIII L.P."), which is the general partner of the BVP VIII Funds. Mr. Deeter is a director of Deer VIII Ltd. Mr. Deeter disclaims beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII L.P., and his indirect limited partnership interest in the BVP VIII Funds.

SEC source: 0000899243-19-002691 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,248

F1 · shares: Pursuant to the Agreement and Plan of Merger and Reorganization, dated October 15, 2018, by and between Twilio Inc. ("Twilio"), SendGrid, Inc. ("SendGrid") and Topaz Merger Subsidiary, Inc., as amended on December 13, 2018 (the "Merger Agreement"), (i) each share of common stock of SendGrid was canceled and automatically converted into 0.485 shares of Class A Common Stock of Twilio, with fractional shares being paid in cash as provided in the Merger Agreement, and (ii) each restricted stock unit ("RSU") representing a share of SendGrid common stock was cancelled and automatically converted into 0.485 fully-vested shares of Class A Common Stock of Twilio, rounded down to the nearest whole share.

F2 · shares: (Continued from footnote 1) Mr. Deeter held 5,651 SendGrid RSUs that pursuant to the Merger Agreement converted into 2,740 fully-vested shares of Class A Common Stock of Twilio. Mr. Deeter also held 38,368 shares of common stock of SendGrid that pursuant to the Merger Agreement converted into 18,608 shares of Class A Common Stock of Twilio.

F1 · price: Pursuant to the Agreement and Plan of Merger and Reorganization, dated October 15, 2018, by and between Twilio Inc. ("Twilio"), SendGrid, Inc. ("SendGrid") and Topaz Merger Subsidiary, Inc., as amended on December 13, 2018 (the "Merger Agreement"), (i) each share of common stock of SendGrid was canceled and automatically converted into 0.485 shares of Class A Common Stock of Twilio, with fractional shares being paid in cash as provided in the Merger Agreement, and (ii) each restricted stock unit ("RSU") representing a share of SendGrid common stock was cancelled and automatically converted into 0.485 fully-vested shares of Class A Common Stock of Twilio, rounded down to the nearest whole share.

F2 · price: (Continued from footnote 1) Mr. Deeter held 5,651 SendGrid RSUs that pursuant to the Merger Agreement converted into 2,740 fully-vested shares of Class A Common Stock of Twilio. Mr. Deeter also held 38,368 shares of common stock of SendGrid that pursuant to the Merger Agreement converted into 18,608 shares of Class A Common Stock of Twilio.

F3 · balance_after: Includes (i) 6,005 shares of Class A Common Stock and (ii) 3,895 restricted stock units previously granted to Mr. Deeter, each of which units represents a contingent right to receive one share of Class A Common Stock of Twilio upon vesting.

SEC source: 0000899243-19-004327 · doc4a.xml · nonDerivative · entry 3

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 329,175

F5 · shares: The Byron B. Deeter and Allison K. Deeter Trustees UTD July 28, 2000 held 38,368 shares of common stock of SendGrid that pursuant to the Merger Agreement converted into 18,608 shares of Class A Common Stock of Twilio.

F7 · shares: This form is being amended to reflect the indirect ownership of the 38,368 shares of common stock of SendGrid held by the Byron B. Deeter and Allison K. Deeter Trustees UTD July 28, 2000 that pursuant to the Merger Agreement converted into 18,608 shares of Class A Common Stock of Twilio.

F1 · price: Pursuant to the Agreement and Plan of Merger and Reorganization, dated October 15, 2018, by and between Twilio Inc. ("Twilio"), SendGrid, Inc. ("SendGrid") and Topaz Merger Subsidiary, Inc., as amended on December 13, 2018 (the "Merger Agreement"), (i) each share of common stock of SendGrid was canceled and automatically converted into 0.485 shares of Class A Common Stock of Twilio, with fractional shares being paid in cash as provided in the Merger Agreement, and (ii) each restricted stock unit ("RSU") representing a share of SendGrid common stock was cancelled and automatically converted into 0.485 fully-vested shares of Class A Common Stock of Twilio, rounded down to the nearest whole share. Mr. Deeter held 5,651 SendGrid RSUs that pursuant to the Merger Agreement converted into 2,740 fully-vested shares of Class A Common Stock of Twilio.

F6 · ownership.nature: These shares are held by the Byron B. Deeter and Allison K. Deeter Trustees UTD July 28, 2000.

SEC source: 0000899243-19-004327 · doc4a.xml · nonDerivative · entry 2

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,079,413

F3 · shares: Represents 1,681,359 and 1,398,054 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII .L.P ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), respectively, pursuant to the Merger Agreement.

F3 · price: Represents 1,681,359 and 1,398,054 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII .L.P ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), respectively, pursuant to the Merger Agreement.

F3 · ownership.nature: Represents 1,681,359 and 1,398,054 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII .L.P ("BVP VIII" and together with BVP VIII Inst, the "BVP VIII Funds"), respectively, pursuant to the Merger Agreement.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer VIII L.P."), which is the general partner of the BVP VIII Funds. Mr. Deeter is a director of Deer VIII Ltd. Mr. Deeter disclaims beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII L.P., and his indirect limited partnership interest in the BVP VIII Funds.

SEC source: 0000899243-19-004327 · doc4a.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,640

F1 · shares: Pursuant to the Agreement and Plan of Merger and Reorganization, dated October 15, 2018, by and between Twilio Inc. ("Twilio"), SendGrid, Inc. ("SendGrid") and Topaz Merger Subsidiary, Inc., as amended on December 13, 2018 (the "Merger Agreement"), (i) each share of common stock of SendGrid was canceled and automatically converted into 0.485 shares of Class A Common Stock of Twilio, with fractional shares being paid in cash as provided in the Merger Agreement, and (ii) each restricted stock unit ("RSU") representing a share of SendGrid common stock was cancelled and automatically converted into 0.485 fully-vested shares of Class A Common Stock of Twilio, rounded down to the nearest whole share. Mr. Deeter held 5,651 SendGrid RSUs that pursuant to the Merger Agreement converted into 2,740 fully-vested shares of Class A Common Stock of Twilio.

F7 · shares: This form is being amended to reflect the indirect ownership of the 38,368 shares of common stock of SendGrid held by the Byron B. Deeter and Allison K. Deeter Trustees UTD July 28, 2000 that pursuant to the Merger Agreement converted into 18,608 shares of Class A Common Stock of Twilio.

F1 · price: Pursuant to the Agreement and Plan of Merger and Reorganization, dated October 15, 2018, by and between Twilio Inc. ("Twilio"), SendGrid, Inc. ("SendGrid") and Topaz Merger Subsidiary, Inc., as amended on December 13, 2018 (the "Merger Agreement"), (i) each share of common stock of SendGrid was canceled and automatically converted into 0.485 shares of Class A Common Stock of Twilio, with fractional shares being paid in cash as provided in the Merger Agreement, and (ii) each restricted stock unit ("RSU") representing a share of SendGrid common stock was cancelled and automatically converted into 0.485 fully-vested shares of Class A Common Stock of Twilio, rounded down to the nearest whole share. Mr. Deeter held 5,651 SendGrid RSUs that pursuant to the Merger Agreement converted into 2,740 fully-vested shares of Class A Common Stock of Twilio.

F2 · balance_after: Includes (i) 6,005 shares of Class A Common Stock and (ii) 3,895 restricted stock units previously granted to Mr. Deeter, each of which units represents a contingent right to receive one share of Class A Common Stock of Twilio upon vesting.

SEC source: 0000899243-18-017029 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,900

F1 · shares: The security represents restricted stock units ("RSUs") granted to the Reporting Person. Each RSU represents a contingent right to receive one share of Class A Common Stock of the Issuer. 100% of the RSUs will vest on the earlier of June 14, 2019 or the date of the Issuer's 2019 Annual Stockholder Meeting, subject to the Reporting Person's continued service as a director of the Issuer as of the applicable vesting date.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · balance_after: The security represents restricted stock units ("RSUs") granted to the Reporting Person. Each RSU represents a contingent right to receive one share of Class A Common Stock of the Issuer. 100% of the RSUs will vest on the earlier of June 14, 2019 or the date of the Issuer's 2019 Annual Stockholder Meeting, subject to the Reporting Person's continued service as a director of the Issuer as of the applicable vesting date.

F3 · balance_after: As of the date of this filing, in addition to the reported shares, 1,935,805 Class B Common shares are held by Bessemer Venture Partners VII L.P. ("BVP VII"), 846,915 Class B Common shares are held by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 3,266,672 Class B Common shares are held by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF") and 119,911 Class B Common shares are held by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst and BVP VII SOF, the "Funds"). Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date. Mr. Deeter is a director of Deer VII & Co. Ltd. ("Deer VII Ltd"), the general partner of Deer VII & Co. L.P. ("Deer VII LP"), the general partner of each of the Funds.

F4 · balance_after: (continued from footnote 3) Mr. Deeter disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VII Ltd, his interest in Deer VII LP, and his indirect limited partnership interest in the Funds.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F3 · ownership.direct: As of the date of this filing, in addition to the reported shares, 1,935,805 Class B Common shares are held by Bessemer Venture Partners VII L.P. ("BVP VII"), 846,915 Class B Common shares are held by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 3,266,672 Class B Common shares are held by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF") and 119,911 Class B Common shares are held by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst and BVP VII SOF, the "Funds"). Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date. Mr. Deeter is a director of Deer VII & Co. Ltd. ("Deer VII Ltd"), the general partner of Deer VII & Co. L.P. ("Deer VII LP"), the general partner of each of the Funds.

F4 · ownership.direct: (continued from footnote 3) Mr. Deeter disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VII Ltd, his interest in Deer VII LP, and his indirect limited partnership interest in the Funds.

SEC source: 0001209191-18-035130 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,651

F1 · shares: Automatic non-discretionary grant to the Reporting Person of a restricted stock unit ("RSU") under the Issuer's 2017 Equity Incentive Plan (the "Plan") in accordance with the Issuer's non-employee director compensation policy. One hundred percent (100%) of the shares subject to the RSU shall vest on next annual meeting of the Issuer's stockholders following the date of grant, subject to the Reporting Person's continued service on such vesting date.

F2 · shares: This filing relates to the grant of RSUs to the Reporting Person pursuant to the Plan, which plan is described in the Issuer's Registration Statement on Form S-1 (333-224121) declared effective by the Securities and Exchange Commission on April 5, 2018. All of the RSU shares are subject to a lock-up agreement between the Reporting Person and certain underwriters.

SEC source: 0001209191-17-061530 · doc4.xml · derivative · entry 7

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 0 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 Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F10 · shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 203,345 shares and 169,082 shares, respectively, of the Series D Preferred Stock.

F2 · derivative.exercise_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.underlying_shares: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F10 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 203,345 shares and 169,082 shares, respectively, of the Series D Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII Co. Ltd., which is the general partner of Deer VIII Co. L.P, which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VIII Co. Ltd., his interest in Deer VIII Co. L.P. and his indirect limited partnership interest in the Funds.

F10 · ownership.nature: Prior to the closing, BVP VIII Inst and BVP VIII owned 203,345 shares and 169,082 shares, respectively, of the Series D Preferred Stock.

SEC source: 0001209191-17-061530 · doc4.xml · derivative · entry 6

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 0 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 Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F9 · shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 713,414 shares and 593,206 shares, respectively, of the Series C Preferred Stock.

F2 · derivative.exercise_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.underlying_shares: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F9 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 713,414 shares and 593,206 shares, respectively, of the Series C Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII Co. Ltd., which is the general partner of Deer VIII Co. L.P, which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VIII Co. Ltd., his interest in Deer VIII Co. L.P. and his indirect limited partnership interest in the Funds.

F9 · ownership.nature: Prior to the closing, BVP VIII Inst and BVP VIII owned 713,414 shares and 593,206 shares, respectively, of the Series C Preferred Stock.

SEC source: 0001209191-17-061530 · doc4.xml · derivative · entry 5

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 0 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 Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F8 · shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 2,605,907 shares and 2,166,817 shares, respectively, of the Series B Preferred Stock.

F2 · derivative.exercise_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.underlying_shares: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F8 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 2,605,907 shares and 2,166,817 shares, respectively, of the Series B Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII Co. Ltd., which is the general partner of Deer VIII Co. L.P, which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VIII Co. Ltd., his interest in Deer VIII Co. L.P. and his indirect limited partnership interest in the Funds.

F8 · ownership.nature: Prior to the closing, BVP VIII Inst and BVP VIII owned 2,605,907 shares and 2,166,817 shares, respectively, of the Series B Preferred Stock.

SEC source: 0001209191-17-061530 · doc4.xml · derivative · entry 4

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 0 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 Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F7 · shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 8,918 shares and 7,415 shares, respectively, of the Series A-1 Preferred Stock.

F2 · derivative.exercise_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.underlying_shares: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F7 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 8,918 shares and 7,415 shares, respectively, of the Series A-1 Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII Co. Ltd., which is the general partner of Deer VIII Co. L.P, which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VIII Co. Ltd., his interest in Deer VIII Co. L.P. and his indirect limited partnership interest in the Funds.

F7 · ownership.nature: Prior to the closing, BVP VIII Inst and BVP VIII owned 8,918 shares and 7,415 shares, respectively, of the Series A-1 Preferred Stock.

SEC source: 0001209191-17-061530 · doc4.xml · derivative · entry 3

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 0 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 Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F6 · shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 25,722 shares and 21,389 shares, respectively, of the Series A Preferred Stock.

F2 · derivative.exercise_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F2 · derivative.underlying_shares: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F6 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 25,722 shares and 21,389 shares, respectively, of the Series A Preferred Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII Co. Ltd., which is the general partner of Deer VIII Co. L.P, which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VIII Co. Ltd., his interest in Deer VIII Co. L.P. and his indirect limited partnership interest in the Funds.

F6 · ownership.nature: Prior to the closing, BVP VIII Inst and BVP VIII owned 25,722 shares and 21,389 shares, respectively, of the Series A Preferred Stock.

SEC source: 0001209191-17-061530 · doc4.xml · nonDerivative · entry 2

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · shares: On November 17, 2017, BVP VIII Inst and BVP VIII purchased 341,250 shares and 283,750 shares, respectively, in the Issuer's initial public offering at a price per share of $16.00. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,333,401 and 3,603,234 shares, respectively, of Common Stock.

F5 · price: On November 17, 2017, BVP VIII Inst and BVP VIII purchased 341,250 shares and 283,750 shares, respectively, in the Issuer's initial public offering at a price per share of $16.00. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,333,401 and 3,603,234 shares, respectively, of Common Stock.

F5 · balance_after: On November 17, 2017, BVP VIII Inst and BVP VIII purchased 341,250 shares and 283,750 shares, respectively, in the Issuer's initial public offering at a price per share of $16.00. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,333,401 and 3,603,234 shares, respectively, of Common Stock.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII Co. Ltd., which is the general partner of Deer VIII Co. L.P, which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VIII Co. Ltd., his interest in Deer VIII Co. L.P. and his indirect limited partnership interest in the Funds.

F5 · ownership.nature: On November 17, 2017, BVP VIII Inst and BVP VIII purchased 341,250 shares and 283,750 shares, respectively, in the Issuer's initial public offering at a price per share of $16.00. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,333,401 and 3,603,234 shares, respectively, of Common Stock.

SEC source: 0001209191-17-061530 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

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

F1 · shares: Represents 3,557,306 shares and 2,957,909 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds"), respectively, upon conversion of the Series A Preferred Stock, Series A-1 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, and Series D Preferred Stock (collectively the "Preferred Stock") upon closing of the Issuer's initial public offering.

F2 · price: The Preferred Stock converted into Common Stock on a one-for-one basis upon the closing of the Issuer's initial public offering without payment of consideration. The Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock had no expiration date.

F3 · balance_after: Following the reported transaction, BVP VIII Inst and BVP VIII owned 3,992,151 and 3,319,484 shares of Common Stock, respectively.

F3 · ownership.nature: Following the reported transaction, BVP VIII Inst and BVP VIII owned 3,992,151 and 3,319,484 shares of Common Stock, respectively.

F4 · ownership.nature: The Reporting Person is a director of Deer VIII Co. Ltd., which is the general partner of Deer VIII Co. L.P, which is the general partner of each of the Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VIII Co. Ltd., his interest in Deer VIII Co. L.P. and his indirect limited partnership interest in the Funds.

SEC source: 0000899243-17-016411 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,005

F1 · shares: The security represents restricted stock units ("RSUs") granted to the Reporting Person. Each RSU represents a contingent right to receive one share of Class A Common Stock of the issuer. 100% of the RSUs will vest on the earlier of June 12, 2018 or the date of the Issuer's 2018 Annual Stockholder Meeting, subject to the Reporting Person's continued service as a director of the issuer as of the applicable vesting date.

F2 · shares: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F1 · balance_after: The security represents restricted stock units ("RSUs") granted to the Reporting Person. Each RSU represents a contingent right to receive one share of Class A Common Stock of the issuer. 100% of the RSUs will vest on the earlier of June 12, 2018 or the date of the Issuer's 2018 Annual Stockholder Meeting, subject to the Reporting Person's continued service as a director of the issuer as of the applicable vesting date.

F3 · balance_after: As of the date of this filing, in addition to the reported shares, 3,548,975 Class B Common shares are held by Bessemer Venture Partners VII L.P. ("BVP VII"), 1,552,677 Class B Common shares are held by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 5,988,900 Class B Common shares are held by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF") and 219,837 Class B Common shares are held by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst and BVP VII SOF, the "Funds"). Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date. Mr. Deeter is a director of Deer VII & Co. Ltd. ("Deer VII Ltd"), the general partner of Deer VII & Co. L.P. ("Deer VII LP"), the general partner of each of the Funds.

F4 · balance_after: (Continued from Footnote 3) Mr. Deeter disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VII Ltd, his interest in Deer VII LP, and his indirect limited partnership interest in the Funds.

F2 · ownership.direct: The Reporting Person has agreed to assign to Deer Management Co. LLC the right to any shares issuable pursuant to this grant or any proceeds from the sale thereof.

F3 · ownership.direct: As of the date of this filing, in addition to the reported shares, 3,548,975 Class B Common shares are held by Bessemer Venture Partners VII L.P. ("BVP VII"), 1,552,677 Class B Common shares are held by Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), 5,988,900 Class B Common shares are held by BVP Special Opportunity Fund VII L.P. ("BVP VII SOF") and 219,837 Class B Common shares are held by 15 Angels LLC ("BVP 15A" and together with BVP VII, BVP VII Inst and BVP VII SOF, the "Funds"). Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date. Mr. Deeter is a director of Deer VII & Co. Ltd. ("Deer VII Ltd"), the general partner of Deer VII & Co. L.P. ("Deer VII LP"), the general partner of each of the Funds.

F4 · ownership.direct: (Continued from Footnote 3) Mr. Deeter disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VII Ltd, his interest in Deer VII LP, and his indirect limited partnership interest in the Funds.

SEC source: 0000899243-16-032419 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · shares: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated October 20, 2016, which offering was consummated on October 26, 2016, the Funds (as defined below) sold an aggregate of 3,084,651 shares of Class A Common Stock. Bessemer Venture Partners VII Institutional LP ("BVP VII Inst") sold 423,457 shares of Class A Common Stock, Bessemer Venture Partners VII, LP ("BVP VII") sold 967,902 shares of Class A Common Stock, BVP VII Special Opportunity Fund LP ("BVP VII SOF") sold 1,633,337 shares of Class A Common Stock, and 15 Angels, LLC ("15 Angels" and, together with BVP VII SOF, BVP VII Inst and BVP VII, the "Funds") sold 59,955 shares of Class A Common Stock, each at a sale price of $38.60.

F1 · price: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated October 20, 2016, which offering was consummated on October 26, 2016, the Funds (as defined below) sold an aggregate of 3,084,651 shares of Class A Common Stock. Bessemer Venture Partners VII Institutional LP ("BVP VII Inst") sold 423,457 shares of Class A Common Stock, Bessemer Venture Partners VII, LP ("BVP VII") sold 967,902 shares of Class A Common Stock, BVP VII Special Opportunity Fund LP ("BVP VII SOF") sold 1,633,337 shares of Class A Common Stock, and 15 Angels, LLC ("15 Angels" and, together with BVP VII SOF, BVP VII Inst and BVP VII, the "Funds") sold 59,955 shares of Class A Common Stock, each at a sale price of $38.60.

F2 · ownership.nature: The Reporting Person is a director of Deer VII & Co. Ltd., which is the general partner of Deer VII & Co. L.P., which is the general partner of BVP VII Inst, BVP VII and BVP VII SOF. 15 Angels is a wholly-owned subsidiary of BVP VII Inst. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VII & Co. Ltd., his interest in Deer VII & Co. L.P. and his indirect limited partnership interest in the Funds.

SEC source: 0000899243-16-032237 · doc4.xml · derivative · entry 2

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 0 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: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3 · shares: In connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated October 20, 2016, which offering is expected to be consummated on or about October 26, 2016, BVP VII Inst converted 423,457 shares of Class B Common Stock into Class A Common Stock, BVP VII converted 967,902 shares of Class B Common Stock into Class A Common Stock, BVP VII SOF converted 1,633,337 shares of Class B Common Stock into Class A Common Stock, and 15 Angels converted 59,955 shares of Class B Common Stock into Class A Common Stock.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F4 · balance_after: After the reported transaction, BVP VII Inst owned 2,399,591 shares of the Class B Common Stock, BVP VII owned 5,484,781 shares of Class B Common Stock, BVP VII SOF owned 9,255,574 shares of Class B Common Stock, and 15 Angels owned 339,747 shares of Class B Common Stock.

F2 · ownership.nature: The Reporting Person is a director of Deer VII & Co. Ltd., which is the general partner of Deer VII & Co. L.P., which is the general partner of Bessemer Venture Partners VII Institutional LP ("BVP VII Inst"), Bessemer Venture Partners VII, LP ("BVP VII") and BVP VII Special Opportunity Fund LP ("BVP VII SOF"). 15 Angels, LLC ("15 Angels" and, together with BVP VII SOF, BVP VII Inst and BVP VII, the "Funds") is a wholly-owned subsidiary of BVP VII Inst. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VII & Co. Ltd., his interest in Deer VII & Co. L.P. and his indirect limited partnership interest in the Funds.

SEC source: 0000899243-16-032237 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

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

F1 · kind: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3 · shares: In connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated October 20, 2016, which offering is expected to be consummated on or about October 26, 2016, BVP VII Inst converted 423,457 shares of Class B Common Stock into Class A Common Stock, BVP VII converted 967,902 shares of Class B Common Stock into Class A Common Stock, BVP VII SOF converted 1,633,337 shares of Class B Common Stock into Class A Common Stock, and 15 Angels converted 59,955 shares of Class B Common Stock into Class A Common Stock.

F1 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3 · balance_after: In connection with the registered public offering of shares of the Issuer's Class A Common Stock, pursuant to a final prospectus dated October 20, 2016, which offering is expected to be consummated on or about October 26, 2016, BVP VII Inst converted 423,457 shares of Class B Common Stock into Class A Common Stock, BVP VII converted 967,902 shares of Class B Common Stock into Class A Common Stock, BVP VII SOF converted 1,633,337 shares of Class B Common Stock into Class A Common Stock, and 15 Angels converted 59,955 shares of Class B Common Stock into Class A Common Stock.

F2 · ownership.nature: The Reporting Person is a director of Deer VII & Co. Ltd., which is the general partner of Deer VII & Co. L.P., which is the general partner of Bessemer Venture Partners VII Institutional LP ("BVP VII Inst"), Bessemer Venture Partners VII, LP ("BVP VII") and BVP VII Special Opportunity Fund LP ("BVP VII SOF"). 15 Angels, LLC ("15 Angels" and, together with BVP VII SOF, BVP VII Inst and BVP VII, the "Funds") is a wholly-owned subsidiary of BVP VII Inst. The Reporting Person disclaims beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in the securities by virtue of his interest in Deer VII & Co. Ltd., his interest in Deer VII & Co. L.P. and his indirect limited partnership interest in the Funds.

SEC source: 0000899243-16-029293 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F1 · shares: On September 15, 2016, Bessemer Venture Partners VIII L.P. ("BVP VIII") and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst" and together with BVP VIII, the "Funds") sold 84,748 and 101,921 shares, respectively, of Common Stock of the Issuer at a sale price of $23.00 per share.

F1 · price: On September 15, 2016, Bessemer Venture Partners VIII L.P. ("BVP VIII") and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst" and together with BVP VIII, the "Funds") sold 84,748 and 101,921 shares, respectively, of Common Stock of the Issuer at a sale price of $23.00 per share.

F2 · balance_after: After the above transaction, BVP VIII owned 330,644 shares and BVP VIII Inst owned 397,648 shares.

F2 · ownership.nature: After the above transaction, BVP VIII owned 330,644 shares and BVP VIII Inst owned 397,648 shares.

F3 · ownership.nature: Mr. Deeter is a director of Deer VIII & Co. Ltd. ("Deer VIII Ltd"), the general partner of Deer VIII & Co. L.P. ("Deer VII LP"), the general partner of the Funds. Mr. Deeter disclaims beneficial ownership of the securities sold by the Funds, and this report shall not be deemed an admission that he is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII LP, and his indirect limited partnership interest in the Funds.

SEC source: 0000899243-16-028828 · doc4.xml · nonDerivative · entry 2

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F4 · shares: On September 12, 2016, BVP VIII and BVP VIII Inst sold 16,040 and 19,291 shares, respectively, of Common Stock of the Issuer at a weighted average sale price of $ 23.92890 per share.

F4 · price: On September 12, 2016, BVP VIII and BVP VIII Inst sold 16,040 and 19,291 shares, respectively, of Common Stock of the Issuer at a weighted average sale price of $ 23.92890 per share.

F5 · balance_after: After the above transaction, BVP VIII owned 415,392 shares and BVP VIII Inst owned 499,569 shares.

F5 · ownership.nature: After the above transaction, BVP VIII owned 415,392 shares and BVP VIII Inst owned 499,569 shares.

F3 · ownership.nature: Mr. Deeter is a director of Deer VIII & Co. Ltd. ("Deer VIII Ltd"), the general partner of Deer VIII & Co. L.P. ("Deer VII LP"), the general partner of the Funds. Mr. Deeter disclaims beneficial ownership of the securities sold by the Funds, and this report shall not be deemed an admission that he is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII LP, and his indirect limited partnership interest in the Funds.

SEC source: 0000899243-16-028828 · doc4.xml · nonDerivative · entry 1

Deeter Byron B · CIK 0001506450 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F1 · shares: On September 8, 2016, Bessemer Venture Partners VIII L.P. ("BVP VIII") and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst" and together with BVP VIII, the "Funds") sold 4,635 and 5,575 shares, respectively, of Common Stock of the Issuer at a weighted average sale price of $24.09930 per share.

F1 · price: On September 8, 2016, Bessemer Venture Partners VIII L.P. ("BVP VIII") and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst" and together with BVP VIII, the "Funds") sold 4,635 and 5,575 shares, respectively, of Common Stock of the Issuer at a weighted average sale price of $24.09930 per share.

F2 · balance_after: After the above transaction, BVP VIII owned 431,432 shares and BVP VIII Inst owned 518,860 shares.

F2 · ownership.nature: After the above transaction, BVP VIII owned 431,432 shares and BVP VIII Inst owned 518,860 shares.

F3 · ownership.nature: Mr. Deeter is a director of Deer VIII & Co. Ltd. ("Deer VIII Ltd"), the general partner of Deer VIII & Co. L.P. ("Deer VII LP"), the general partner of the Funds. Mr. Deeter disclaims beneficial ownership of the securities sold by the Funds, and this report shall not be deemed an admission that he is the beneficial owner of such securities, except to the extent of his pecuniary interest, if any, in such securities by virtue of his interest in Deer VIII Ltd, his interest in Deer VIII LP, and his indirect limited partnership interest in the Funds.