AMPL

SEC source: 0001562180-25-004003 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,102,414

F1 · kind: Represents shares of the Issuer's Class A Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of the Issuer's Class A Common Stock delivered to the reporting person on May 15, 2025, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 1,509,531 RSUs.

SEC source: 0001104659-25-048478 · tm2515059-1_4seq1.xml · derivative · entry 6

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,685,008 shares

Expires not disclosed

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

F6 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F6 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F6 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Shares are held directly by Benchmark Capital Partners VIII, L.P. ("BCP VIII") for itself and as nominee for Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over the securities. Eric Vishria, a member of the Issuer's board of directors, Matthew R. Cohler, Peter H. Fenton, J. William Gurley, An-Yen Hu, Mitchell H. Lasky and Chetan Puttagunta are the managing members of BCMC VIII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities.

SEC source: 0001104659-25-048478 · tm2515059-1_4seq1.xml · nonDerivative · entry 4

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 329,621

F5 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on December 13, 2024.

F4 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-25-048478 · tm2515059-1_4seq1.xml · nonDerivative · entry 3

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 339,621

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees.

F4 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-25-048478 · tm2515059-1_4seq1.xml · nonDerivative · entry 2

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees.

F2 · ownership.nature: Shares are held directly by Benchmark Capital Partners VIII, L.P. ("BCP VIII") for itself and as nominee for Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over the securities. Eric Vishria, a member of the Issuer's board of directors, Matthew R. Cohler, Peter H. Fenton, J. William Gurley, An-Yen Hu, Mitchell H. Lasky and Chetan Puttagunta are the managing members of BCMC VIII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities.

SEC source: 0001104659-25-048478 · tm2515059-1_4seq1.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,685,008

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: Conversion of a derivative security in accordance with its terms.

F2 · ownership.nature: Shares are held directly by Benchmark Capital Partners VIII, L.P. ("BCP VIII") for itself and as nominee for Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over the securities. Eric Vishria, a member of the Issuer's board of directors, Matthew R. Cohler, Peter H. Fenton, J. William Gurley, An-Yen Hu, Mitchell H. Lasky and Chetan Puttagunta are the managing members of BCMC VIII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities.

SEC source: 0001562180-25-003763 · primarydocument.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 261,859

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on December 13, 2024.

F2 · price: This transaction was executed in multiple trades in prices ranging from $10.00 to $10.27, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F3 · ownership.direct: Shares are held by entities controlled by the reporting person.

SEC source: 0001562180-25-003351 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,236,906

F1 · shares: Each restricted stock unit ("RSU") represents a right to receive one share of the Issuer's Class A Common Stock. The RSUs vest in twelve substantially equal quarterly installments beginning on May 15, 2025, subject to the continued service of the reporting person through each vesting date.

F2 · balance_after: Includes 1,097,907 RSUs.

SEC source: 0001562180-25-003350 · primarydocument.xml · nonDerivative · entry 1

Liu Curtis · CIK 0001883022 · Director · Chief Technology Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 852,878

F1 · shares: Each restricted stock unit ("RSU") represents a right to receive one share of the Issuer's Class A Common Stock. The RSUs vest in twelve substantially equal quarterly installments beginning on May 15, 2025, subject to the continued service of the reporting person through each vesting date.

F2 · balance_after: Consists of 852,878 RSUs.

SEC source: 0001562180-25-003353 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,198,224

F1 · shares: Each restricted stock unit ("RSU") represents a right to receive one share of the Issuer's Class A Common Stock. The RSUs vest in twelve substantially equal quarterly installments beginning on May 15, 2025, subject to the continued service of the reporting person through each vesting date.

F2 · balance_after: Includes 1,698,204 RSUs.

SEC source: 0001562180-25-003076 · primarydocument.xml · nonDerivative · entry 1

Tzuo Tien · CIK 0001735409 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,672

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the"Program") in lieu of retainer fees. Each RSU represents a right to receive one share of Class A Common Stock. Vesting of the RSUs has been deferred pursuant to the terms of the Program.

F2 · balance_after: Includes 44,860 RSUs.

SEC source: 0001562180-25-003077 · primarydocument.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,806

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program") in lieu of retainer fees. Each RSU represents a right to receive one share of Class A Common Stock, with settlement to take place either (i) on a date selected by the reporting person pursuant to the Program or (ii) as otherwise provided by the Program.

SEC source: 0001562180-25-002468 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,076,992

F1 · price: This transaction was executed in multiple trades at prices ranging from $11.27 to $11.52, inclusive. The price reported in Column 4 above reflects the weighted average price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares purchased at each respective price within the range set forth in this footnote.

F2 · balance_after: Includes 937,993 restricted stock units.

SEC source: 0001562180-25-002333 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 91,169

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of restricted stock units ("RSUs"), pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 10, 2024.

F2 · price: This transaction was executed in multiple trades in prices ranging from $11.8400 to $12.1600, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F3 · balance_after: Includes 26,707 RSUs.

SEC source: 0001104659-25-017506 · tm257673-1_4seq1.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 286,859

F1 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 1, 2024.

F2 · price: This transaction was executed in multiple trades in prices ranging from $12.47 to $13.43, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F3 · ownership.direct: Shares are held by entities controlled by the reporting person.

SEC source: 0000950170-25-026797 · ownership.xml · nonDerivative · entry 1

Tzuo Tien · CIK 0001735409 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,274

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program"). Each RSU represents a right to receive one share of Class A Common Stock. Vesting of the RSUs has been deferred pursuant to the terms of the Program.

F2 · balance_after: Includes 44,462 RSUs.

SEC source: 0001104659-25-016600 · tm257400-1_4seq1.xml · derivative · entry 5

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,685,008

Underlying: Class A Common Stock · 1,000,000 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.

F5 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F5 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F5 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Shares are held directly by Benchmark Capital Partners VIII, L.P. ("BCP VIII") for itself and as nominee for Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over the securities. Eric Vishria, a member of the Issuer's board of directors, Matthew R. Cohler, Peter H. Fenton, J. William Gurley, An-Yen Hu, Mitchell H. Lasky, Chetan Puttagunta and Sarah E. Tavel are the managing members of BCMC VIII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities.

SEC source: 0001104659-25-016600 · tm257400-1_4seq1.xml · nonDerivative · entry 3

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 321,859

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees.

F4 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-25-016600 · tm257400-1_4seq1.xml · nonDerivative · entry 2

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees.

F2 · ownership.nature: Shares are held directly by Benchmark Capital Partners VIII, L.P. ("BCP VIII") for itself and as nominee for Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over the securities. Eric Vishria, a member of the Issuer's board of directors, Matthew R. Cohler, Peter H. Fenton, J. William Gurley, An-Yen Hu, Mitchell H. Lasky, Chetan Puttagunta and Sarah E. Tavel are the managing members of BCMC VIII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities.

SEC source: 0001104659-25-016600 · tm257400-1_4seq1.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,000,000

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: Conversion of a derivative security in accordance with its terms.

F2 · ownership.nature: Shares are held directly by Benchmark Capital Partners VIII, L.P. ("BCP VIII") for itself and as nominee for Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over the securities. Eric Vishria, a member of the Issuer's board of directors, Matthew R. Cohler, Peter H. Fenton, J. William Gurley, An-Yen Hu, Mitchell H. Lasky, Chetan Puttagunta and Sarah E. Tavel are the managing members of BCMC VIII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities.

SEC source: 0001562180-25-001239 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,055,992

F1 · kind: Represents shares of the Issuer's Class A Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of the Issuer's Class A Common Stock delivered to the reporting person on February 15, 2025, from the vesting of RSUs, and does not represent a sale by the reporting person.

F2 · balance_after: Includes 937,993 RSUs.

SEC source: 0001562180-25-001240 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,633,193

F1 · kind: Represents shares of the Issuer's Class A Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of the Issuer's Class A Common Stock delivered to the reporting person on February 15, 2025, from the vesting of RSUs, and does not represent a sale by the reporting person.

F2 · balance_after: Includes 1,133,173 RSUs.

SEC source: 0001562180-25-000671 · primarydocument.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 276,208

F1 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 1, 2024.

F2 · ownership.direct: Shares are held by entities controlled by the reporting person.

SEC source: 0001562180-25-000248 · primarydocument.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,163

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program") in lieu of retainer fees. Each RSU represents a right to receive one share of Class A Common Stock, with settlement to take place either (i) on a date selected by the reporting person pursuant to the Program or (ii) as otherwise provided by the Program.

SEC source: 0001562180-24-008423 · primarydocument.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 279,771

F1 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 1, 2024.

F2 · price: This transaction was executed in multiple trades in prices ranging from $12.0000 to $12.1200, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F3 · ownership.direct: Shares are held by entities controlled by the reporting person.

SEC source: 0001562180-24-007802 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 94,684

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of restricted stock units ("RSUs"), pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 21, 2023.

F2 · price: This transaction was executed in multiple trades in prices ranging from $9.4200 to $9.8100, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F3 · balance_after: Includes 34,519 RSUs.

SEC source: 0001562180-24-007799 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,091,740

F1 · kind: Represents shares of the Issuer's Class A Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of the Issuer's Class A Common Stock delivered to the reporting person on November 15, 2024, from the vesting of RSUs, and does not represent a sale by the reporting person.

F2 · balance_after: Includes 1,031,793 RSUs.

SEC source: 0001562180-24-007797 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,693,208

F1 · kind: Represents shares of the Issuer's Class A Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of the Issuer's Class A Common Stock delivered to the reporting person on November 15, 2024, from the vesting of RSUs, and does not represent a sale by the reporting person.

F2 · balance_after: Includes 1,344,588 RSUs.

SEC source: 0001562180-24-007695 · primarydocument.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 286,208

F1 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 1, 2024.

F2 · price: This transaction was executed in multiple trades in prices ranging from $10.0000 to $10.3300, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F3 · ownership.direct: Shares are held by entities controlled by the reporting person.

SEC source: 0001562180-24-007274 · primarydocument.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,480

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program") in lieu of retainer fees. Each RSU represents a right to receive one share of Class A Common Stock, with settlement to take place either (i) on a date selected by the reporting person pursuant to the Program or (ii) as otherwise provided by the Program.

SEC source: 0001562180-24-006847 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,125,592

F1 · shares: Each restricted stock unit ("RSU") represents a right to receive one share of the Issuer's Class A Common Stock. The RSUs vest in twelve substantially equal quarterly installments beginning on November 15, 2024, subject to the continued service of the reporting person through each vesting date.

F2 · balance_after: Consists of 1,125,592 RSUs.

SEC source: 0001562180-24-006385 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,199

F1 · shares: Shares sold to satisfy tax obligations in connection with the vesting of restricted stock units ("RSUs"), pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 21, 2023.

F2 · price: This transaction was executed in multiple trades in prices ranging from $8.4000 to $8.6200, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F3 · balance_after: Includes 42,332 RSUs.

SEC source: 0001562180-24-006313 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,764,965

F1 · shares: Represents shares of the Issuer's Class A Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of the Issuer's Class A Common Stock delivered to the reporting person on August 15, 2024, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 1,486,174 RSUs.

SEC source: 0001610717-24-000393 · form4.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,626

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program") in lieu of retainer fees. Each RSU represents a right to receive one share of Class A Common Stock, with settlement to take place either (i) on a date selected by the reporting person pursuant to the Program or (ii) as otherwise provided by the Program.

SEC source: 0001562180-24-005039 · primarydocument.xml · nonDerivative · entry 1

Gill Ronald S · CIK 0001494474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,772

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program"). Each RSU represents a right to receive one share of Class A Common Stock. Vesting of the RSUs has been deferred pursuant to the terms of the Program.

F2 · balance_after: Includes (i) 13,729 shares of Class A Common Stock received in a pro rata in-kind distribution exempt from reporting pursuant to Rule 16a-9 and (ii) 18,894 RSUs.

SEC source: 0001562180-24-005038 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,714

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program"). Each RSU represents a right to receive one share of Class A Common Stock. The RSUs will vest in full on the earlier of (i) June 11, 2025 or (ii) immediately before the Issuer's 2025 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 50,144 RSUs.

SEC source: 0001562180-24-005037 · primarydocument.xml · nonDerivative · entry 1

Steele Elisa · CIK 0001596281 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,690

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program"). Each RSU represents a right to receive one share of Class A Common Stock. The RSUs will vest in full on the earlier of (i) June 11, 2025 or (ii) immediately before the Issuer's 2025 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 21,690 RSUs.

SEC source: 0001562180-24-005036 · primarydocument.xml · nonDerivative · entry 1

Whitehurst James M · CIK 0001292272 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,438

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program"). Each RSU represents a right to receive one share of Class A Common Stock. The RSUs will vest in full on the earlier of (i) June 11, 2025 or (ii) immediately before the Issuer's 2025 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 61,501 RSUs.

SEC source: 0001562180-24-005035 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,894

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program"). Each RSU represents a right to receive one share of Class A Common Stock. The RSUs will vest in full on the earlier of (i) June 11, 2025 or (ii) immediately before the Issuer's 2025 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 18,894 RSUs.

SEC source: 0001610717-24-000325 · form4.xml · nonDerivative · entry 1

Grady Patrick W · CIK 0001700423 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,043

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program. Each RSU represents a right to receive one share of Class A Common Stock. The RSUs will vest in full on the earlier of (i) June 11, 2025 or (ii) immediately before the Issuer's 2025 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board through such vesting date.

SEC source: 0001610717-24-000324 · form4.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,767

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program. Each RSU represents a right to receive one share of Class A Common Stock. The RSUs will vest in full on the earlier of (i) June 11, 2025 or (ii) immediately before the Issuer's 2025 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

SEC source: 0001562180-24-004232 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 82,820

F1 · kind: Shares sold to satisfy tax obligations in connection with the vesting of restricted stock units ("RSUs"), pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 21, 2023.

F2 · price: This transaction was executed in multiple trades in prices ranging from $9.0200 to $9.2700, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F3 · balance_after: Includes 31,250 RSUs.

SEC source: 0001562180-24-004171 · primarydocument.xml · nonDerivative · entry 1

Harms Christopher · CIK 0001720216 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 833,853

F1 · shares: Represents shares of the Issuer's Class A Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of the Issuer's Class A Common Stock delivered to the reporting person on May 15, 2024, from the vesting of RSUs, and does not represent a sale by the reporting person.

F2 · balance_after: Includes 691,846 RSUs.

SEC source: 0001562180-24-004170 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,836,722

F1 · shares: Represents shares of the Issuer's Class A Common Stock withheld by the Issuer solely to satisfy tax withholding obligations in connection with the net issuance of shares of the Issuer's Class A Common Stock delivered to the reporting person on May 15, 2024, from the vesting of RSUs, and does not represent a sale by the reporting person.

F2 · balance_after: Includes 1,557,931 RSUs.

SEC source: 0001562180-24-003428 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,905,802

F1 · shares: Each restricted stock unit ("RSU") represents a right to receive one share of the Issuer's Class A Common Stock. The RSUs vest in twelve substantially equal quarterly installments beginning on February 15, 2024, subject to the continued service of the reporting person through each vesting date.

F2 · balance_after: Includes 1,699,516 RSUs.

SEC source: 0001562180-24-003427 · primarydocument.xml · nonDerivative · entry 1

Harms Christopher · CIK 0001720216 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 865,917

F1 · shares: Each restricted stock unit ("RSU") represents a right to receive one share of the Issuer's Class A Common Stock. The RSUs vest in twelve substantially equal quarterly installments beginning on February 15, 2024, subject to the continued service of the reporting person through each vesting date.

F2 · balance_after: Includes 764,294 RSUs.

SEC source: 0000950170-24-042961 · ownership.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,873

F1 · shares: Represents restricted stock units ("RSUs") that were granted pursuant to the Issuer's Non-Employee Director Compensation Program (the "Program") in lieu of retainer fees. Each RSU represents a right to receive one share of Class A Common Stock, with settlement to take place either (i) on a date selected by the reporting person pursuant to the Program or (ii) as otherwise provided by the Program.

F2 · balance_after: Includes 17,930 RSUs, of which 17,206 were granted pursuant to the Program and will vest in full on the earlier of (i) June 8, 2024 or (ii) immediately before the Issuer's 2024 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

SEC source: 0001104659-24-028696 · tm247519-1_4seq1.xml · derivative · entry 5

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,685,008

Underlying: Class A Common Stock · 1,000,000 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.

F6 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F6 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F6 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Shares are held directly by Benchmark Capital Partners VIII, L.P. ("BCP VIII") for itself and as nominee for Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over the securities. Eric Vishria, a member of the Issuer's board of directors, Matthew R. Cohler, Peter H. Fenton, J. William Gurley, An-Yen Hu, Mitchell H. Lasky, Chetan Puttagunta and Sarah E. Tavel are the managing members of BCMC VIII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities.

SEC source: 0001104659-24-028696 · tm247519-1_4seq1.xml · nonDerivative · entry 3

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 311,208

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees.

F4 · ownership.nature: Shares are held by entities controlled by the reporting person.

SEC source: 0001104659-24-028696 · tm247519-1_4seq1.xml · nonDerivative · entry 2

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

F3 · kind: Represents a pro-rata, in-kind distribution by BCP VIII and its affiliated funds, not for additional consideration, to its partners, including BCMC VIII and its respective members and assignees.

F2 · ownership.nature: Shares are held directly by Benchmark Capital Partners VIII, L.P. ("BCP VIII") for itself and as nominee for Benchmark Founders' Fund VIII, L.P. ("BFF VIII") and Benchmark Founders' Fund VIII-B, L.P. ("BFF VIII-B"). Benchmark Capital Management Co. VIII, L.L.C. ("BCMC VIII"), the general partner of BCP VIII, BFF VIII and BFF VIII-B, may be deemed to have sole voting and dispositive power over the securities. Eric Vishria, a member of the Issuer's board of directors, Matthew R. Cohler, Peter H. Fenton, J. William Gurley, An-Yen Hu, Mitchell H. Lasky, Chetan Puttagunta and Sarah E. Tavel are the managing members of BCMC VIII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities.