Deer VIII & Co. L.P.

SEC source: 0000899243-22-021010 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 69,237,231

F1 · kind: On June 1, 2022 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 referred to collectively, the "Funds") distributed, for no consideration shares 2,222,898 and 1,848,343 shares, respectively (collectively, the "Shares"), of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · kind: (Continued from Footnote 1), All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F1 · shares: On June 1, 2022 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 referred to collectively, the "Funds") distributed, for no consideration shares 2,222,898 and 1,848,343 shares, respectively (collectively, the "Shares"), of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · shares: (Continued from Footnote 1), All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F1 · price: On June 1, 2022 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 referred to collectively, the "Funds") distributed, for no consideration shares 2,222,898 and 1,848,343 shares, respectively (collectively, the "Shares"), of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · price: (Continued from Footnote 1), All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4 · balance_after: As of the date hereof, BVP VIII Inst and BVP VIII own 37,803,531 shares of Common Stock and 31,433,700 shares of Common Stock, respectively.

F3 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer L.P. which is the general partner of each of the Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

F4 · ownership.nature: As of the date hereof, BVP VIII Inst and BVP VIII own 37,803,531 shares of Common Stock and 31,433,700 shares of Common Stock, respectively.

SEC source: 0000899243-22-009727 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 9,304,099

F1 · kind: On March 3, 2022 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 referred to collectively, the "Funds") distributed, for no consideration 355,595 shares and 295,678 shares, respectively (collectively, the "Shares"), of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · kind: (Continued from Footnote 1), All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F1 · shares: On March 3, 2022 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 referred to collectively, the "Funds") distributed, for no consideration 355,595 shares and 295,678 shares, respectively (collectively, the "Shares"), of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · shares: (Continued from Footnote 1), All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F1 · price: On March 3, 2022 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 referred to collectively, the "Funds") distributed, for no consideration 355,595 shares and 295,678 shares, respectively (collectively, the "Shares"), of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · price: (Continued from Footnote 1), All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4 · balance_after: As of the date hereof, BVP VIII Inst and BVP VIII own 5,080,035 shares of Common Stock and 4,224,064 shares of Common Stock, respectively.

F3 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer L.P. which is the general partner of each of the Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

F4 · ownership.nature: As of the date hereof, BVP VIII Inst and BVP VIII own 5,080,035 shares of Common Stock and 4,224,064 shares of Common Stock, respectively.

SEC source: 0000899243-22-009722 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 73,308,472

F1 · kind: On March 3, 2022 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 referred to collectively, the "Funds") distributed, for no consideration 4,445,797 shares and 3,696,685 shares, respectively (collectively, the "Shares"), of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · kind: (Continued from footnote 1) All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F1 · shares: On March 3, 2022 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 referred to collectively, the "Funds") distributed, for no consideration 4,445,797 shares and 3,696,685 shares, respectively (collectively, the "Shares"), of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · shares: (Continued from footnote 1) All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F1 · price: On March 3, 2022 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 referred to collectively, the "Funds") distributed, for no consideration 4,445,797 shares and 3,696,685 shares, respectively (collectively, the "Shares"), of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · price: (Continued from footnote 1) All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4 · balance_after: As of the date hereof, BVP VIII Inst and BVP VIII own 40,026,429 shares of Common Stock and 33,282,043 shares of Common Stock, respectively.

F3 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer L.P. which is the general partner of each of the Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

F4 · ownership.nature: As of the date hereof, BVP VIII Inst and BVP VIII own 40,026,429 shares of Common Stock and 33,282,043 shares of Common Stock, respectively.

SEC source: 0000899243-21-045342 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 9,955,372

F1 · shares: On November 16, 2021, 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") sold 655,200 shares and 544,800 shares of Common Stock of CS Disco, Inc., respectively, in a single execution of $51.00 per share.

F1 · price: On November 16, 2021, 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") sold 655,200 shares and 544,800 shares of Common Stock of CS Disco, Inc., respectively, in a single execution of $51.00 per share.

F2 · balance_after: Following the reported transactions, BVP VIII Inst and BVP VIII own 5,435,631 shares of Common Stock and 4,519,741 shares of Common Stock, respectively.

F2 · ownership.nature: Following the reported transactions, BVP VIII Inst and BVP VIII own 5,435,631 shares of Common Stock and 4,519,741 shares of Common Stock, respectively.

F3 · 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 BVP VIII Inst and BVP VIII. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 Funds.

SEC source: 0000899243-21-045975 · doc4a.xml · derivative · entry 5

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

GoBlue Ventures LLC · CIK 0001889592 · 10% owner

Wahoowa Ventures LLC · CIK 0001889593 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 202,540 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F3 · 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 (a) Bessemer VIII Institutional, which is the sole member of 15 Angels and GoBlue and (b) Bessemer Venture Partners VIII L.P., which is the sole member of Wahoowa. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by Bessemer VIII Institutional, 15 Angels, GoBlue, and Wahoowa and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 interests in Bessemer VIII Institutional, 15 Angels, GoBlue and Wahoowa.

F7 · ownership.nature: Prior to the conversion, Bessemer VIII Institutional, 15 Angels, GoBlue and Wahoowa owned 0 shares of Series B-1 Preferred Stock, 0 shares of Series B-1 Preferred Stock, 110,587 shares of Series B-1 Preferred Stock and 91,953 shares of Series B-1 Preferred Stock, respectively.

SEC source: 0000899243-21-045975 · doc4a.xml · derivative · entry 4

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

GoBlue Ventures LLC · CIK 0001889592 · 10% owner

Wahoowa Ventures LLC · CIK 0001889593 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 524,809 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F3 · 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 (a) Bessemer VIII Institutional, which is the sole member of 15 Angels and GoBlue and (b) Bessemer Venture Partners VIII L.P., which is the sole member of Wahoowa. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by Bessemer VIII Institutional, 15 Angels, GoBlue, and Wahoowa and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 interests in Bessemer VIII Institutional, 15 Angels, GoBlue and Wahoowa.

F6 · ownership.nature: Prior to the conversion, Bessemer VIII Institutional, 15 Angels, GoBlue and Wahoowa owned 139,362 shares of Series B Preferred Stock, 182,187 shares of Series B Preferred Stock, 47,710 shares of Series B Preferred Stock and 155,550 shares of Series B Preferred Stock, respectively.

SEC source: 0000899243-21-045975 · doc4a.xml · derivative · entry 3

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

GoBlue Ventures LLC · CIK 0001889592 · 10% owner

Wahoowa Ventures LLC · CIK 0001889593 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 744,732 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F3 · 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 (a) Bessemer VIII Institutional, which is the sole member of 15 Angels and GoBlue and (b) Bessemer Venture Partners VIII L.P., which is the sole member of Wahoowa. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by Bessemer VIII Institutional, 15 Angels, GoBlue, and Wahoowa and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 interests in Bessemer VIII Institutional, 15 Angels, GoBlue and Wahoowa.

F5 · ownership.nature: Prior to the conversion, Bessemer VIII Institutional, 15 Angels, GoBlue and Wahoowa owned 264,620 shares of Series A Preferred Stock, 260,080 shares of Series A Preferred Stock, 0 shares of Series A Preferred Stock and 220,032 shares of Series A Preferred Stock, respectively.

SEC source: 0000899243-21-045975 · doc4a.xml · derivative · entry 2

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

GoBlue Ventures LLC · CIK 0001889592 · 10% owner

Wahoowa Ventures LLC · CIK 0001889593 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 161,824 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F3 · 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 (a) Bessemer VIII Institutional, which is the sole member of 15 Angels and GoBlue and (b) Bessemer Venture Partners VIII L.P., which is the sole member of Wahoowa. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by Bessemer VIII Institutional, 15 Angels, GoBlue, and Wahoowa and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 interests in Bessemer VIII Institutional, 15 Angels, GoBlue and Wahoowa.

F4 · ownership.nature: Prior to the conversion Bessemer VIII Institutional, 15 Angels, GoBlue and Wahoowa owned 57,500 shares of Series Seed Preferred Stock, 56,513 shares of Series Seed Preferred Stock, 0 shares of Series Seed Preferred Stock and 47,811 shares of Series Seed Preferred Stock, respectively.

SEC source: 0000899243-21-045975 · doc4a.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

GoBlue Ventures LLC · CIK 0001889592 · 10% owner

Wahoowa Ventures LLC · CIK 0001889593 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 1,633,905

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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F2 · shares: After giving effect to the reported conversion Bessemer Venture Partners VIII Institutional L.P. ("Bessemer VIII Institutional"), 15 Angels II LLC ("15 Angels"), GoBlue Ventures LLC ("GoBlue") and Wahoowa Ventures LLC ("Wahoowa") own 461,482 shares of Common Stock, 498,780 shares of Common Stock, 158,297 shares of Common Stock and 515,346 shares of Common Stock, respectively.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Series Seed Preferred Stock, Series A Preferred Stock, Series B Preferred Stock, and Series B-1 Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock on a 1:1 basis. The Preferred Stock had no expiration date.

F2 · ownership.nature: After giving effect to the reported conversion Bessemer Venture Partners VIII Institutional L.P. ("Bessemer VIII Institutional"), 15 Angels II LLC ("15 Angels"), GoBlue Ventures LLC ("GoBlue") and Wahoowa Ventures LLC ("Wahoowa") own 461,482 shares of Common Stock, 498,780 shares of Common Stock, 158,297 shares of Common Stock and 515,346 shares of Common Stock, respectively.

F3 · 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 (a) Bessemer VIII Institutional, which is the sole member of 15 Angels and GoBlue and (b) Bessemer Venture Partners VIII L.P., which is the sole member of Wahoowa. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by Bessemer VIII Institutional, 15 Angels, GoBlue, and Wahoowa and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 interests in Bessemer VIII Institutional, 15 Angels, GoBlue and Wahoowa.

F8 · ownership.nature: On November 17, 2021, the Reporting Persons mistakenly filed a Form 4 under the incorrect CIK code and incorrectly checked the box stating it is no longer subject to Section 16. This Form 4/A serves to correct that filing.

SEC source: 0000899243-21-044245 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 15,100,687

F1 · shares: On November 8, 2021 Bessemer Venture Partners VIII, L.P. ("BVP VIII") and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") sold 730,940 shares and 879,060 shares, respectively, of Common Stock of Procore Technologies Inc., in a single execution of $93.30 per share.

F1 · price: On November 8, 2021 Bessemer Venture Partners VIII, L.P. ("BVP VIII") and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") sold 730,940 shares and 879,060 shares, respectively, of Common Stock of Procore Technologies Inc., in a single execution of $93.30 per share.

F2 · balance_after: Following the reported transaction, 6,324,133 shares are held by BVP VIII, 7,605,674 shares are held by BVP VIII Inst, 947,724 shares are held by Bessemer Venture Partners PR, L.P. ("BVP PR") and 223,156 shares are held by 15 Angels II LLC ("15 Angels").

F3 · 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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F4 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

SEC source: 0000899243-21-036867 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 11,155,372

F1 · shares: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Common Stock, pursuant to a final prospectus dated September 14, 2021, which offering was consummated on September 17, 2021, the Funds (as defined below) sold an aggregate of 1,870,089 shares of Common Stock. Bessemer Venture Partners VIII Institutional LP ("BVP VIII Inst") sold 1,021,070 shares of Common Stock and Bessemer Venture Partners VIII, LP ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 849,019 shares of Common Stock, each at a sale price of $51.2775.

F1 · price: Pursuant to an underwriting agreement and in connection with the registered public offering of shares of the Issuer's Common Stock, pursuant to a final prospectus dated September 14, 2021, which offering was consummated on September 17, 2021, the Funds (as defined below) sold an aggregate of 1,870,089 shares of Common Stock. Bessemer Venture Partners VIII Institutional LP ("BVP VIII Inst") sold 1,021,070 shares of Common Stock and Bessemer Venture Partners VIII, LP ("BVP VIII", and together with BVP VIII Inst, the "Funds") sold 849,019 shares of Common Stock, each at a sale price of $51.2775.

F2 · balance_after: Following the reported transactions, BVP VIII Inst and BVP VIII own 6,090,831 shares of Common Stock and 5,064,541 shares of Common Stock, respectively.

F2 · ownership.nature: Following the reported transactions, BVP VIII Inst and BVP VIII own 6,090,831 shares of Common Stock and 5,064,541 shares of Common Stock, respectively.

F3 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer L.P."), which is the general partner of BVP VIII Inst and BVP. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

SEC source: 0001209191-21-048368 · doc4.xml · derivative · entry 6

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 807,727 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: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

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 BVP VIII Inst and BVP VIII. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 Funds.

F9 · ownership.nature: Prior to the closing, BVP VIII Inst owned 441,019 shares of Series F Preferred Stock and BVP VIII owned 366,708 shares of Series F Preferred Stock.

SEC source: 0001209191-21-048368 · doc4.xml · derivative · entry 5

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,175,825 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: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

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 BVP VIII Inst and BVP VIII. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 Funds.

F8 · ownership.nature: Prior to the closing, BVP VIII Inst owned 642,000 shares of Series E Preferred Stock and BVP VIII owned 533,825 shares of Series E Preferred Stock.

SEC source: 0001209191-21-048368 · doc4.xml · derivative · entry 4

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 2,952,458 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: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

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 BVP VIII Inst and BVP VIII. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 Funds.

F7 · ownership.nature: Prior to the closing, BVP VIII Inst owned 1,612,042 shares of Series D Preferred Stock and BVP VIII owned 1,340,416 shares of Series D Preferred Stock.

SEC source: 0001209191-21-048368 · doc4.xml · derivative · entry 3

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,988,169 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: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

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 BVP VIII Inst and BVP VIII. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 Funds.

F6 · ownership.nature: Prior to the closing, BVP VIII Inst owned 1,085,540 shares of Series C Preferred Stock and BVP VIII owned 902,629 shares of Series C Preferred Stock.

SEC source: 0001209191-21-048368 · doc4.xml · derivative · entry 2

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 5,121,212 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: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.exercise_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F2 · derivative.expiration_date: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

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 BVP VIII Inst and BVP VIII. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 Funds.

F5 · ownership.nature: Prior to the closing, BVP VIII Inst owned 2,796,182 shares of Series B Preferred Stock and BVP VIII owned 2,325,030 shares of Series B Preferred Stock.

SEC source: 0001209191-21-048368 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 13,025,461

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 6,576,783 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and 5,468,608 shares received by Bessemer Venture Partners VIII, L.P. ("BVP VIII", together with BVP VIII Inst referred to collectively, the "Funds") upon conversion of the Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock upon closing of the Issuer's initial public offering.

F2 · price: Each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock was convertible at any time at the option of the holder, without payment of additional consideration, into Common Stock, on a one for one basis, had no expiration date and automatically converted into shares of Common Stock on a one for one basis upon the closing of the Issuer's initial public offering.

F3 · ownership.nature: Following the reported transactions, BVP VIII Inst and BVP VIII own 7,111,901 shares of Common Stock and 5,913,560 shares of Common Stock, respectively.

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 BVP VIII Inst and BVP VIII. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 Funds.

SEC source: 0001209191-21-035977 · doc4.xml · derivative · entry 9

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 396,139 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.

F13 · shares: Prior to the closing, BVP VIII owned 119,898 shares, BVP VIII Inst owned 144,195 shares and 15 Angels owned 132,046 shares of the Series I 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.

F13 · derivative.underlying_shares: Prior to the closing, BVP VIII owned 119,898 shares, BVP VIII Inst owned 144,195 shares and 15 Angels owned 132,046 shares of the Series I Preferred Stock.

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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

F13 · ownership.nature: Prior to the closing, BVP VIII owned 119,898 shares, BVP VIII Inst owned 144,195 shares and 15 Angels owned 132,046 shares of the Series I Preferred Stock.

SEC source: 0001209191-21-035977 · doc4.xml · derivative · entry 8

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 78,388 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.

F12 · shares: Prior to the closing, 15 Angels owned 78,388 shares of the Series H-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.

F12 · derivative.underlying_shares: Prior to the closing, 15 Angels owned 78,388 shares of the Series H-1 Preferred Stock.

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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

F12 · ownership.nature: Prior to the closing, 15 Angels owned 78,388 shares of the Series H-1 Preferred Stock.

SEC source: 0001209191-21-035977 · doc4.xml · derivative · entry 7

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 885,567 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.

F11 · shares: Prior to the closing, BVP VIII owned 349,643 shares and BVP VIII Inst owned 535,924 shares of the Series F 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.

F11 · derivative.underlying_shares: Prior to the closing, BVP VIII owned 349,643 shares and BVP VIII Inst owned 535,924 shares of the Series F Preferred Stock.

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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

F11 · ownership.nature: Prior to the closing, BVP VIII owned 349,643 shares and BVP VIII Inst owned 535,924 shares of the Series F Preferred Stock.

SEC source: 0001209191-21-035977 · doc4.xml · derivative · entry 6

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,809,425 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 owned 714,403 shares and BVP VIII Inst owned 1,095,022 shares of the Series E 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 owned 714,403 shares and BVP VIII Inst owned 1,095,022 shares of the Series E Preferred Stock.

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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

F10 · ownership.nature: Prior to the closing, BVP VIII owned 714,403 shares and BVP VIII Inst owned 1,095,022 shares of the Series E Preferred Stock.

SEC source: 0001209191-21-035977 · doc4.xml · derivative · entry 5

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 11,876,509 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 owned 5,551,416 shares and BVP VIII Inst owned 6,325,093 shares 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.

F9 · derivative.underlying_shares: Prior to the closing, BVP VIII owned 5,551,416 shares and BVP VIII Inst owned 6,325,093 shares of the Series D Preferred Stock.

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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

F9 · ownership.nature: Prior to the closing, BVP VIII owned 5,551,416 shares and BVP VIII Inst owned 6,325,093 shares of the Series D Preferred Stock.

SEC source: 0001209191-21-035977 · doc4.xml · derivative · entry 4

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 133,980 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 owned 60,827 shares and BVP VIII Inst owned 73,153 shares 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.

F8 · derivative.underlying_shares: Prior to the closing, BVP VIII owned 60,827 shares and BVP VIII Inst owned 73,153 shares of the Series C Preferred Stock.

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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

F8 · ownership.nature: Prior to the closing, BVP VIII owned 60,827 shares and BVP VIII Inst owned 73,153 shares of the Series C Preferred Stock.

SEC source: 0001209191-21-035977 · doc4.xml · derivative · entry 3

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 347,754 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 owned 81,097 shares, BVP VIII Inst owned 97,530 shares and BVP PR owned 169,127 shares 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.

F7 · derivative.underlying_shares: Prior to the closing, BVP VIII owned 81,097 shares, BVP VIII Inst owned 97,530 shares and BVP PR owned 169,127 shares of the Series B Preferred Stock.

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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

F7 · ownership.nature: Prior to the closing, BVP VIII owned 81,097 shares, BVP VIII Inst owned 97,530 shares and BVP PR owned 169,127 shares of the Series B Preferred Stock.

SEC source: 0001209191-21-035977 · doc4.xml · derivative · entry 2

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 580,456 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 owned 176,125 shares, BVP VIII Inst owned 211,816 shares and BVP PR owned 192,515 shares 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 owned 176,125 shares, BVP VIII Inst owned 211,816 shares and BVP PR owned 192,515 shares of the Series A Preferred Stock.

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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

F6 · ownership.nature: Prior to the closing, BVP VIII owned 176,125 shares, BVP VIII Inst owned 211,816 shares and BVP PR owned 192,515 shares of the Series A Preferred Stock.

SEC source: 0001209191-21-035977 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Bessemer Venture Partners PR, L.P. · CIK 0001819753 · 10% owner

15 Angels II LLC · CIK 0001713257 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 16,710,687

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 7,053,409 shares received by Bessemer Venture Partners VIII, L.P. ("BVP VIII"), 8,482,733 shares received by Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst"), 361,642 shares received by Bessemer Venture Partners PR, L.P. ("BVP PR") and 210,434 shares received by 15 Angels II LLC ("15 Angels") upon conversion of the Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock, Series H-1 Preferred Stock and Series I 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 · ownership.nature: Following the reported transaction, 7,055,073 shares are held by BVP VIII, 8,484,734 shares are held by BVP VIII Inst, 947,724 shares are held by BVP PR and 223,156 shares are held by 15 Angels.

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 BVP VIII, BVP Inst. and 15 Angels. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by BVP VIII, BVP VIII Inst and 15 Angels, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 BVP VIII, BVP VIII Inst and 15 Angels.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of BVP PR. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by BVP PR, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. 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 interest in BVP PR.

SEC source: 0000899243-20-005645 · doc4.xml · derivative · entry 3

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,419,184 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 without payment or consideration and has no expiration date.

F3 · shares: Represents 644,307 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 774,877 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst.

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 without payment or consideration and has no expiration date.

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 without payment or consideration 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 without payment or consideration and has no expiration date.

F3 · derivative.underlying_shares: Represents 644,307 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 774,877 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd") is the general partner of Deer VIII & Co. L.P. ("Deer VII LP" and, together with the BVP VIII Funds and Deer VIII Ltd, the "BVP Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd and Deer VIII LP disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd and Deer VIII 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 VIII Funds.

SEC source: 0000899243-20-005645 · doc4.xml · nonDerivative · entry 2

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F2 · shares: On February 20,2020, Bessemer Venture Partners VIII L.P. ("BVP VIII") sold 644,307 shares of Class A Common Stock and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst" and together with BVP VIII, the "BVP VIII Funds") sold 774,877 shares of Class A Common Stock, each at a single execution price of $3.25 per share of Class A Common Stock.

F3 · ownership.nature: Represents 644,307 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 774,877 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd") is the general partner of Deer VIII & Co. L.P. ("Deer VII LP" and, together with the BVP VIII Funds and Deer VIII Ltd, the "BVP Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd and Deer VIII LP disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd and Deer VIII 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 VIII Funds.

SEC source: 0000899243-20-005645 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 1,419,184

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 without payment or consideration and has no expiration date.

F3 · shares: Represents 644,307 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 774,877 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst.

F3 · balance_after: Represents 644,307 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 774,877 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst.

F3 · ownership.nature: Represents 644,307 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 774,877 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd") is the general partner of Deer VIII & Co. L.P. ("Deer VII LP" and, together with the BVP VIII Funds and Deer VIII Ltd, the "BVP Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd and Deer VIII LP disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd and Deer VIII 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 VIII Funds.

SEC source: 0000899243-19-028296 · doc4.xml · nonDerivative · entry 2

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · Director

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · Director

Deer VIII & Co. L.P. · CIK 0001559306 · Director

Deer VIII & Co. Ltd. · CIK 0001559311 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F6 · shares: On November 26, 2019 BVP VIII and BVP VIII Inst sold 1,678 and 2,018 shares, respectively of Class A Common Stock of Twilio (the "Sold Shares"). The Sold 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.

F6 · price: On November 26, 2019 BVP VIII and BVP VIII Inst sold 1,678 and 2,018 shares, respectively of Class A Common Stock of Twilio (the "Sold Shares"). The Sold 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.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. and (Deer VIII L.P., Deer VIII Ltd. and the BVP VIII Funds are collectively referred to as the "BVP VIII Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 VIII Funds.

F5 · 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 & Co. L.P. ("Deer VII L.P."), which is the general partner of Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP VII Special Opportunity Fund L.P. ("BVP VII SOF") and Bessemer Venture Partners VII L.P. ("BVP VII" and together with BVP VII Inst, BVP VII SOF and 15 Angels LLC, a wholly-owned subsidiary of BVP VII, collectively, the "BVP VII Funds" and, together with Deer VII Ltd. and Deer VII L.P., 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.

SEC source: 0000899243-19-028296 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · Director

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · Director

Deer VIII & Co. L.P. · CIK 0001559306 · Director

Deer VIII & Co. Ltd. · CIK 0001559311 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,696

F1 · kind: 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") distributed, for no consideration, 208,152, and 173,079 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · kind: (continued from footnote 1) All of the aforementioned 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.

F1 · 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") distributed, for no consideration, 208,152, and 173,079 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · shares: (continued from footnote 1) All of the aforementioned 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.

F1 · 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") distributed, for no consideration, 208,152, and 173,079 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · price: (continued from footnote 1) All of the aforementioned 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 · balance_after: After the distribution, 1,678 shares of Class A Common Stock were held by BVP VIII, and 2,018 shares of Class A Common Stock were held by BVP VIII Inst.

F3 · ownership.nature: After the distribution, 1,678 shares of Class A Common Stock were held by BVP VIII, and 2,018 shares of Class A Common Stock were held by BVP VIII Inst.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. and (Deer VIII L.P., Deer VIII Ltd. and the BVP VIII Funds are collectively referred to as the "BVP VIII Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 VIII Funds.

F5 · 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 & Co. L.P. ("Deer VII L.P."), which is the general partner of Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP VII Special Opportunity Fund L.P. ("BVP VII SOF") and Bessemer Venture Partners VII L.P. ("BVP VII" and together with BVP VII Inst, BVP VII SOF and 15 Angels LLC, a wholly-owned subsidiary of BVP VII, collectively, the "BVP VII Funds" and, together with Deer VII Ltd. and Deer VII L.P., 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.

SEC source: 0000899243-19-025455 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 7,355,002

F1 · kind: On October 8, 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") distributed, for no consideration, 446,203, and 371,019 shares (collectively, the "Shares"), respectively, of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · kind: (continued from footnote 1) All of the aforementioned 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.

F1 · shares: On October 8, 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") distributed, for no consideration, 446,203, and 371,019 shares (collectively, the "Shares"), respectively, of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · shares: (continued from footnote 1) All of the aforementioned 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.

F1 · price: On October 8, 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") distributed, for no consideration, 446,203, and 371,019 shares (collectively, the "Shares"), respectively, of Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · price: (continued from footnote 1) All of the aforementioned 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 · balance_after: After the distribution, 3,339,170 shares of Common Stock are held by BVP VIII, and 4,015,832 shares of Common Stock are held by BVP VIII Inst.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII L.P., which is the general partner of BVP VIII Inst and BVP VIII. Each of Deer Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

SEC source: 0000899243-19-021403 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · Director

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · Director

Deer VIII & Co. L.P. · CIK 0001559306 · Director

Deer VIII & Co. Ltd. · CIK 0001559311 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 384,927

F1 · kind: On August 6, 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") distributed, for no consideration, 210,170, and 174,757 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · kind: (Continued from Footnote 1) All of the aforementioned 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.

F1 · shares: On August 6, 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") distributed, for no consideration, 210,170, and 174,757 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · shares: (Continued from Footnote 1) All of the aforementioned 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.

F1 · price: On August 6, 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") distributed, for no consideration, 210,170, and 174,757 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · price: (Continued from Footnote 1) All of the aforementioned 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 · balance_after: After the distribution, 174,757 shares of Class A Common Stock are held by BVP VIII, and 210,170 shares of Class A Common Stock are held by BVP VIII Inst.

F3 · ownership.nature: After the distribution, 174,757 shares of Class A Common Stock are held by BVP VIII, and 210,170 shares of Class A Common Stock are held by BVP VIII Inst.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. and (Deer VIII L.P., Deer VIII Ltd. and the BVP VIII Funds are collectively referred to as the "BVP VIII Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 VIII Funds.

F5 · 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 & Co. L.P. ("Deer VII L.P."), which is the general partner of Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP VII Special Opportunity Fund L.P. ("BVP VII SOF") and Bessemer Venture Partners VII L.P. ("BVP VII"). Each of BVP VII Inst, BVP VII SOF, BVP VII and 15 Angels LLC, a wholly-owned subsidiary of BVP VII Inst (collectively, the "BVP VII Funds" and, together with Deer VII Ltd. and Deer VII L.P., the "BVP VII Entities"), beneficially owns shares of Twilio's Class B Common Stock. Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio.

SEC source: 0000899243-19-012593 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · Director

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · Director

Deer VIII & Co. L.P. · CIK 0001559306 · Director

Deer VIII & Co. Ltd. · CIK 0001559311 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 769,854

F1 · kind: On May 3, 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") distributed, for no consideration, 420,339, and 349,514 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · kind: (Continued from Footnote 1) All of the aforementioned 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.

F1 · shares: On May 3, 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") distributed, for no consideration, 420,339, and 349,514 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · shares: (Continued from Footnote 1) All of the aforementioned 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.

F1 · price: On May 3, 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") distributed, for no consideration, 420,339, and 349,514 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · price: (Continued from Footnote 1) All of the aforementioned 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 · balance_after: After the distribution, 349,514 shares of Class A Common Stock are held by BVP VIII, and 420,340 shares of Class A Common Stock are held by BVP VIII Inst.

F3 · ownership.nature: After the distribution, 349,514 shares of Class A Common Stock are held by BVP VIII, and 420,340 shares of Class A Common Stock are held by BVP VIII Inst.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. and (Deer VIII L.P., Deer VIII Ltd. and the BVP VIII Funds are collectively referred to as the "BVP VIII Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 VIII Funds.

F5 · 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 & Co. L.P. ("Deer VII L.P."), which is the general partner of Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP VII Special Opportunity Fund L.P. ("BVP VII SOF") and Bessemer Venture Partners VII L.P. ("BVP VII"). Each of BVP VII Inst, BVP VII SOF, BVP VII and 15 Angels LLC, a wholly-owned subsidiary of BVP VII Inst (collectively, the "BVP VII Funds" and, together with Deer VII Ltd. and Deer VII L.P., the "BVP VII Entities"), beneficially owns shares of Twilio's Class B Common Stock. Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio.

SEC source: 0000899243-19-010654 · doc4.xml · derivative · entry 5

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 169,903 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 92,767 shares and 77,136 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.

F8 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 92,767 shares and 77,136 shares, respectively, of the Series D Preferred Stock.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer L.P."), which is the general partner of BVP VIII Inst and BVP VIII. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

F8 · ownership.nature: Prior to the closing, BVP VIII Inst and BVP VIII owned 92,767 shares and 77,136 shares, respectively, of the Series D Preferred Stock.

SEC source: 0000899243-19-010654 · doc4.xml · derivative · entry 4

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 95,544 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 52,168 shares and 43,376 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.

F7 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 52,168 shares and 43,376 shares, respectively, of the Series C Preferred Stock.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer L.P."), which is the general partner of BVP VIII Inst and BVP VIII. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

F7 · ownership.nature: Prior to the closing, BVP VIII Inst and BVP VIII owned 52,168 shares and 43,376 shares, respectively, of the Series C Preferred Stock.

SEC source: 0000899243-19-010654 · doc4.xml · derivative · entry 3

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 6,957,266 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 3,798,666 shares and 3,158,600 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.

F6 · derivative.underlying_shares: Prior to the closing, BVP VIII Inst and BVP VIII owned 3,798,666 shares and 3,158,600 shares, respectively, of the Series B Preferred Stock.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer L.P."), which is the general partner of BVP VIII Inst and BVP VIII. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

F6 · ownership.nature: Prior to the closing, BVP VIII Inst and BVP VIII owned 3,798,666 shares and 3,158,600 shares, respectively, of the Series B Preferred Stock.

SEC source: 0000899243-19-010654 · doc4.xml · nonDerivative · entry 2

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 8,172,224

F5 · shares: On April 15, 2019, BVP VIII Inst and BVP VIII purchased 163,800 shares and 136,200 shares, respectively, in the Issuer's initial public offering. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,462,035 and 3,710,189 shares, respectively, of Common Stock.

F5 · balance_after: On April 15, 2019, BVP VIII Inst and BVP VIII purchased 163,800 shares and 136,200 shares, respectively, in the Issuer's initial public offering. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,462,035 and 3,710,189 shares, respectively, of Common Stock.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer L.P."), which is the general partner of BVP VIII Inst and BVP VIII. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

F5 · ownership.nature: On April 15, 2019, BVP VIII Inst and BVP VIII purchased 163,800 shares and 136,200 shares, respectively, in the Issuer's initial public offering. Following the reported transaction, BVP VIII Inst and BVP VIII own 4,462,035 and 3,710,189 shares, respectively, of Common Stock.

SEC source: 0000899243-19-010654 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 7,872,224

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 the total 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") upon conversion of the Series B Preferred Stock, Series C Preferred Stock, 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 4,298,235 and 3,573,989 shares of Common Stock, respectively.

F3 · ownership.nature: Following the reported transaction, BVP VIII Inst and BVP VIII owned 4,298,235 and 3,573,989 shares of Common Stock, respectively.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer L.P."), which is the general partner of BVP VIII Inst and BVP VIII. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

SEC source: 0000899243-19-006705 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · Director

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · Director

Deer VIII & Co. L.P. · CIK 0001559306 · Director

Deer VIII & Co. Ltd. · CIK 0001559311 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 1,539,707

F1 · kind: On March 5, 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") distributed, for no consideration, 420,340, and 349,513 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · kind: (Continued from Footnote 1) All of the aforementioned 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.

F1 · shares: On March 5, 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") distributed, for no consideration, 420,340, and 349,513 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · shares: (Continued from Footnote 1) All of the aforementioned 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.

F1 · price: On March 5, 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") distributed, for no consideration, 420,340, and 349,513 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · price: (Continued from Footnote 1) All of the aforementioned 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 · balance_after: After the distribution, 699,028 shares of Class A Common Stock are held by BVP VIII, and 840,679 shares of Class A Common Stock are held by BVP VIII Inst.

F3 · ownership.nature: After the distribution, 699,028 shares of Class A Common Stock are held by BVP VIII, and 840,679 shares of Class A Common Stock are held by BVP VIII Inst.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. and (Deer VIII L.P., Deer VIII Ltd. and the BVP VIII Funds are collectively referred to as the "BVP VIII Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 VIII Funds.

F5 · 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 & Co. L.P. ("Deer VII L.P."), which is the general partner of Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP VII Special Opportunity Fund L.P. ("BVP VII SOF") and Bessemer Venture Partners VII L.P. ("BVP VII"). Each of BVP VII Inst, BVP VII SOF, BVP VII and 15 Angels LLC, a wholly-owned subsidiary of BVP VII Inst (collectively, the "BVP VII Funds" and, together with Deer VII Ltd. and Deer VII L.P., the "BVP VII Entities"), beneficially owns shares of Twilio's Class B Common Stock. Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio.

SEC source: 0000899243-19-005317 · doc4.xml · derivative · entry 3

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 21,287,771

Underlying: Class A Common Stock · 15,000,000 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 without payment or consideration and has no expiration date.

F3 · shares: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of 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 without payment or consideration and has no expiration date.

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 without payment or consideration 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 without payment or consideration and has no expiration date.

F3 · derivative.underlying_shares: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of Class A Common Stock.

F5 · balance_after: After the foregoing conversion, BVP VIII and BVP VIII Inst own 9,664,606 shares and 11,623,165 shares, respectively, of Class B Common Stock.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd") is the general partner of Deer VIII & Co. L.P. ("Deer VII LP" and, together with the BVP VIII Funds and Deer VIII Ltd, the "BVP Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd and Deer VIII LP disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd and Deer VIII 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 VIII Funds.

SEC source: 0000899243-19-005317 · doc4.xml · nonDerivative · entry 2

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F2 · shares: On February 26, 2019, Bessemer Venture Partners VIII L.P. ("BVP VIII") sold 6,809,971 shares of Class A Common Stock and Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst" and together with BVP VIII, the "BVP VIII Funds") sold 8,190,029 shares of Class A Common Stock, each at a single execution price of $1.15 per share of Class A Common Stock.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd") is the general partner of Deer VIII & Co. L.P. ("Deer VII LP" and, together with the BVP VIII Funds and Deer VIII Ltd, the "BVP Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd and Deer VIII LP disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd and Deer VIII 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 VIII Funds.

SEC source: 0000899243-19-005317 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 15,000,000

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 without payment or consideration and has no expiration date.

F3 · shares: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of 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 without payment or consideration and has no expiration date.

F3 · balance_after: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of Class A Common Stock.

F3 · ownership.nature: Represents 6,809,971 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII and 8,190,029 shares converted from Class B Common Stock to Class A Common Stock by BVP VIII Inst. After the foregoing conversion, BVP VIII and BVP VIII Inst own 6,809,971 shares and 8,190,029 shares, respectively, of Class A Common Stock.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd") is the general partner of Deer VIII & Co. L.P. ("Deer VII LP" and, together with the BVP VIII Funds and Deer VIII Ltd, the "BVP Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd and Deer VIII LP disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd and Deer VIII 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 VIII Funds.

SEC source: 0000899243-19-004143 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · Director

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · Director

Deer VIII & Co. L.P. · CIK 0001559306 · Director

Deer VIII & Co. Ltd. · CIK 0001559311 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,309,560

F1 · kind: On February 14, 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") distributed, for no consideration, 420,340, and 349,513 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · kind: (Continued from Footnote 1) All of the aforementioned 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.

F1 · shares: On February 14, 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") distributed, for no consideration, 420,340, and 349,513 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · shares: (Continued from Footnote 1) All of the aforementioned 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.

F1 · price: On February 14, 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") distributed, for no consideration, 420,340, and 349,513 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer VIII L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares. Finally, on the same date, Deer VIII L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares.

F2 · price: (Continued from Footnote 1) All of the aforementioned 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 · balance_after: After the distribution, 1,048,541 shares of Class A Common Stock are held by BVP VIII, and 1,261,019 shares of Class A Common Stock are held by BVP VIII Inst.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII L.P. and (Deer VIII L.P., Deer VIII Ltd. and the BVP VIII Funds are collectively referred to as the "BVP VIII Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 VIII Funds.

F5 · 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 & Co. L.P. ("Deer VII L.P."), which is the general partner of Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP VII Special Opportunity Fund L.P. ("BVP VII SOF") and Bessemer Venture Partners VII L.P. ("BVP VII"). Each of BVP VII Inst, BVP VII SOF, BVP VII and 15 Angels LLC, a wholly-owned subsidiary of BVP VII Inst (collectively, the "BVP VII Funds" and, together with Deer VII Ltd. and Deer VII L.P., the "BVP VII Entities"), beneficially owns shares of Twilio's Class B Common Stock. Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio.

SEC source: 0001209191-19-007517 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · kind: Disposed of pursuant to the Agreement and Plan of Merger and Reorganization dated as of October 15, 2018, as amended on December 13, 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 · kind: Immediately prior to the effective time of the Merger, 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"), owned 3,466,721 and 2,882,587 shares, respectively, of the Issuer's Common Stock.

F1 · price: Disposed of pursuant to the Agreement and Plan of Merger and Reorganization dated as of October 15, 2018, as amended on December 13, 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: Immediately prior to the effective time of the Merger, 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"), owned 3,466,721 and 2,882,587 shares, respectively, of the Issuer's Common Stock.

F3 · 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 BVP VIII Inst and BVP VIII. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 VIII Funds.

SEC source: 0000899243-19-002687 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · Director

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · Director

Deer VIII & Co. L.P. · CIK 0001559306 · Director

Deer VIII & Co. Ltd. · CIK 0001559311 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,079,413

F1 · kind: Acquired 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", and the transactions contemplated therein, the "Merger"), whereby 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. 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"), owned 3,466,721 and 2,882,587 shares, respectively, of SendGrid's Common Stock, which converted in the Merger into 1,681,359 and 1,398,054 shares, respectively, of Twilio's Class A Common Stock.

F3 · kind: 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 & Co. L.P. ("Deer VII L.P."), which is the general partner of Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP VII Special Opportunity Fund L.P. ("BVP VII SOF") and Bessemer Venture Partners VII L.P. ("BVP VII"). Each of BVP VII Inst, BVP VII SOF, BVP VII and 15 Angels LLC, a wholly-owned subsidiary of BVP VII Inst (collectively, the "BVP VII Funds" and, together with Deer VII Ltd. and Deer VII L.P., the "BVP VII Entities"), beneficially owns shares of Twilio's Class B Common Stock. Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio.

F1 · price: Acquired 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", and the transactions contemplated therein, the "Merger"), whereby 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. 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"), owned 3,466,721 and 2,882,587 shares, respectively, of SendGrid's Common Stock, which converted in the Merger into 1,681,359 and 1,398,054 shares, respectively, of Twilio's Class A Common Stock.

F1 · ownership.nature: Acquired 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", and the transactions contemplated therein, the "Merger"), whereby 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. 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"), owned 3,466,721 and 2,882,587 shares, respectively, of SendGrid's Common Stock, which converted in the Merger into 1,681,359 and 1,398,054 shares, respectively, of Twilio's Class A Common Stock.

F2 · ownership.nature: Deer VIII & Co. Ltd. ("Deer VIII Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer VIII L.P." and, together with Deer VIII Ltd. and the BVP VIII Funds, the "BVP VIII Entities"), which is the general partner of the BVP VIII Funds. Deer VIII Ltd. and Deer VIII L.P. disclaim beneficial ownership of the securities held by the BVP VIII Funds, and this report shall not be deemed an admission that Deer VIII Ltd. and Deer VIII L.P. 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 VIII Funds.

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 & Co. L.P. ("Deer VII L.P."), which is the general partner of Bessemer Venture Partners VII Institutional L.P. ("BVP VII Inst"), BVP VII Special Opportunity Fund L.P. ("BVP VII SOF") and Bessemer Venture Partners VII L.P. ("BVP VII"). Each of BVP VII Inst, BVP VII SOF, BVP VII and 15 Angels LLC, a wholly-owned subsidiary of BVP VII Inst (collectively, the "BVP VII Funds" and, together with Deer VII Ltd. and Deer VII L.P., the "BVP VII Entities"), beneficially owns shares of Twilio's Class B Common Stock. Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio.

SEC source: 0000899243-18-016294 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 6,349,308

F1 · kind: On June 8, 2018, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII L.P. ("BVP VIII") distributed, for no consideration, 866,680 and 720,647 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares.

F2 · kind: (Continued from Footnote 1) Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares. All of the aforementioned 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.

F1 · shares: On June 8, 2018, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII L.P. ("BVP VIII") distributed, for no consideration, 866,680 and 720,647 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares.

F2 · shares: (Continued from Footnote 1) Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares. All of the aforementioned 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.

F1 · price: On June 8, 2018, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII L.P. ("BVP VIII") distributed, for no consideration, 866,680 and 720,647 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares.

F2 · price: (Continued from Footnote 1) Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares. All of the aforementioned 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 · balance_after: Following the reported transaction, BVP VIII Inst and BVP VIII owned 3,466,721 and 2,882,587 shares of Class A Common Stock, respectively.

F1 · ownership.nature: On June 8, 2018, Bessemer Venture Partners VIII Institutional L.P. ("BVP VIII Inst") and Bessemer Venture Partners VIII L.P. ("BVP VIII") distributed, for no consideration, 866,680 and 720,647 shares (collectively, the "Shares"), respectively, of Class A Common Stock to their limited partners and to Deer VIII & Co. L.P. ("Deer L.P."), representing each such partner's pro rata interest in such Shares. On the same date, one or more of such limited partner(s) distributed, for no consideration, the Shares to certain of its or their members in an amount equal to each such member's or members' respective pro rata interests in the Shares.

F2 · ownership.nature: (Continued from Footnote 1) Finally, on the same date, Deer L.P. distributed, for no consideration, the Shares it received from the distributions to its partners in an amount equal to each such partner's pro rata interest in the Shares. All of the aforementioned 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.

F4 · ownership.nature: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer L.P., which is the general partner of BVP VIII Inst and BVP VIII. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 Funds.

SEC source: 0000899243-17-026850 · doc4.xml · derivative · entry 7

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 372,427 shares

Expires not disclosed

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

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: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer L.P."), which is the general partner of BVP VIII Inst and BVP VIII. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 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: 0000899243-17-026850 · doc4.xml · derivative · entry 6

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 1,306,620 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: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer L.P."), which is the general partner of BVP VIII Inst and BVP VIII. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 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: 0000899243-17-026850 · doc4.xml · derivative · entry 5

Bessemer Venture Partners VIII L.P. · CIK 0001508900 · 10% owner

Bessemer Venture Partners VIII Institutional L.P. · CIK 0001508902 · 10% owner

Deer VIII & Co. L.P. · CIK 0001559306 · 10% owner

Deer VIII & Co. Ltd. · CIK 0001559311 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 4,772,724 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: Deer VIII & Co. Ltd. ("Deer Ltd.") is the general partner of Deer VIII & Co. L.P. ("Deer L.P."), which is the general partner of BVP VIII Inst and BVP VIII. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. 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 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.