AMPL

SEC source: 0001882913-25-000007 · primarydocument.xml · nonDerivative · entry 2

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 0

F2 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person's spouse on August 8, 2025.

SEC source: 0001882913-25-000007 · primarydocument.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 100

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

F1 · price: The 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

SEC source: 0001882913-25-000005 · primarydocument.xml · derivative · entry 3

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 567,257

Underlying: Class A Common Stock · 42,743 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

F1 · kind: 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

SEC source: 0001882913-25-000005 · primarydocument.xml · nonDerivative · entry 2

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 0

F2 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person's spouse on August 8, 2025.

F3 · price: This transaction was executed in multiple trades at prices ranging from $12.0000 to $12.0400. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001882913-25-000005 · primarydocument.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 42,743

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

F1 · price: The 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

SEC source: 0001542687-25-000011 · primarydocument.xml · derivative · entry 3

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 49,500

Underlying: Class A Common Stock · 10,000 shares

Expires 2030-12-15

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

F4 · derivative.exercise_date: The option is early exercisable. 1/48th of the shares subject to the option vest on each monthly anniversary measured from December 10, 2020 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001542687-25-000011 · primarydocument.xml · nonDerivative · entry 2

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 114,906

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 12, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $10.7200 to $11.1900. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 14,906 RSUs.

SEC source: 0001542687-25-000011 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 124,906

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

SEC source: 0001542687-25-000009 · primarydocument.xml · derivative · entry 3

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,500

Underlying: Class A Common Stock · 10,000 shares

Expires 2030-12-15

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

F3 · derivative.exercise_date: The option is early exercisable. 1/48th of the shares subject to the option vest on each monthly anniversary measured from December 10, 2020 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001542687-25-000009 · primarydocument.xml · nonDerivative · entry 2

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 107,406

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 12, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $9.5000 to $10.5800. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001542687-25-000009 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,406

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

SEC source: 0002032390-25-000006 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,106,208

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, 2025, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 1,140,440 RSUs.

SEC source: 0001883022-25-000003 · 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: 756,952

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, 2025, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 639,658 RSUs.

SEC source: 0001728084-25-000003 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,914,987

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, 2025, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 1,140,440 RSUs.

SEC source: 0001882913-25-000003 · primarydocument.xml · derivative · entry 3

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 610,000

Underlying: Class A Common Stock · 400,000 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: 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

F1 · kind: 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

SEC source: 0001882913-25-000003 · primarydocument.xml · nonDerivative · entry 2

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 0

F2 · kind: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person's spouse on August 8, 2025.

F3 · price: This transaction was executed in multiple trades at prices ranging from $10.5500 to $11.2700. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001882913-25-000003 · primarydocument.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 400,000

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 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

SEC source: 0002032390-25-000004 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,160,608

F1 · price: This transaction was executed in multiple trades at prices ranging from $9.90 to $10.07, 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 883,657 RSUs.

F3 · balance_after: Includes 2,500 shares acquired under the Issuer's employee stock purchase plan on May 14, 2025.

SEC source: 0001542687-25-000007 · primarydocument.xml · derivative · entry 3

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,500

Underlying: Class A Common Stock · 10,000 shares

Expires 2030-12-15

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

F3 · derivative.exercise_date: The option is early exercisable. 1/48th of the shares subject to the option vest on each monthly anniversary measured from December 10, 2020 (the"Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001542687-25-000007 · primarydocument.xml · nonDerivative · entry 2

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 107,406

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 12, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $10.0200 to $10.2900. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001542687-25-000007 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,406

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

SEC source: 0001735409-25-000005 · primarydocument.xml · nonDerivative · entry 1

Tzuo Tien · CIK 0001735409 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,543

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. Issuance of the RSU shares has been deferred pursuant to the terms of the Program.

F2 · balance_after: Includes 46,731 RSUs.

SEC source: 0001542687-25-000005 · primarydocument.xml · derivative · entry 3

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,500

Underlying: Class A Common Stock · 10,000 shares

Expires 2030-12-15

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

F3 · derivative.exercise_date: The option is early exercisable. 1/48th of the shares subject to the option vest on each monthly anniversary measured from December 10, 2020 (the"Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001542687-25-000005 · primarydocument.xml · nonDerivative · entry 2

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 107,406

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 12, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $10.8500 to $11.3100. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001542687-25-000005 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 117,406

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

SEC source: 0001562180-25-005898 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,128,108

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 August 15, 2025, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 883,657 RSUs.

SEC source: 0001562180-25-005897 · 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: 793,044

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 August 15, 2025, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 710,732 RSUs.

SEC source: 0001562180-25-005899 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,006,605

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 August 15, 2025, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 1,320,859 RSUs.

SEC source: 0001562180-25-005896 · primarydocument.xml · derivative · entry 3

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 89,500

Underlying: Class A Common Stock · 7,500 shares

Expires 2030-12-15

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

F3 · derivative.exercise_date: The option is early exercisable. 1/48th of the shares subject to the option vest on each monthly anniversary measured from December 10, 2020 (the"Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested on the fourth anniversary of the VestingCommencement Date.

SEC source: 0001562180-25-005896 · primarydocument.xml · nonDerivative · entry 2

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 107,406

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on March 12, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $11.3800 to $11.5400. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-25-005896 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 114,906

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

SEC source: 0001610717-25-000291 · form4.xml · derivative · entry 2

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 1,010,000

Underlying: Class A Common Stock · 1,010,000 shares

Expires not disclosed

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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 · kind: This transaction involved a gift of securities by the reporting person to his wife. This is not a market transaction, thus no price has been reported. No value was received for the gifted shares.

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

SEC source: 0001610717-25-000291 · form4.xml · derivative · entry 1

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,342,146

Underlying: Class A Common Stock · 1,010,000 shares

Expires not disclosed

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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 · kind: This transaction involved a gift of securities by the reporting person to his wife. This is not a market transaction, thus no price has been reported. No value was received for the gifted shares.

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

F1 · 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, (b) the death or incapacity of Mr. Skates, (c) the date that is six months following the date on which Mr. Skates is no longer an employee or director of the Issuer (unless Mr. Skates has rejoined the Issuer during such six-month period) or (d) 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).

SEC source: 0001562180-25-005458 · primarydocument.xml · derivative · entry 5

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,000

Underlying: Class A Common Stock · 7,500 shares

Expires 2030-12-15

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

F3 · derivative.exercise_date: The option is early exercisable. 1/48th of the shares subject to the option vest on each monthly anniversary measured from December 10, 2020 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001562180-25-005458 · primarydocument.xml · nonDerivative · entry 3

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 107,406

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on March 12, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $12.41 to $12.81. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-25-005458 · primarydocument.xml · nonDerivative · entry 2

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 114,906

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

SEC source: 0001562180-25-005351 · primarydocument.xml · nonDerivative · entry 1

Tzuo Tien · CIK 0001735409 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,566

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 45,754 RSUs.

SEC source: 0001562180-25-004863 · primarydocument.xml · nonDerivative · entry 1

Vishria Eric · CIK 0001617474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,712

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 12, 2026 or (ii) immediately before the Issuer's 2026 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 14,906 RSUs.

SEC source: 0000950170-25-086864 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,949

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 (ii) June 12, 2026 or immediately before the Issuer's 2026 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 14,906 RSUs.

SEC source: 0001562180-25-004858 · primarydocument.xml · nonDerivative · entry 1

Gill Ronald S · CIK 0001494474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,678

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 12, 2026 or (ii) immediately before the Issuer's 2026 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 14,906 RSUs.

SEC source: 0001562180-25-004857 · primarydocument.xml · nonDerivative · entry 1

Whitehurst James M · CIK 0001292272 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162,344

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 12, 2026 or (ii) immediately before the Issuer's 2026 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 26,263 RSUs.

SEC source: 0001562180-25-004856 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,406

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 12, 2026 or (ii) immediately before the Issuer's 2026 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 14,906 RSUs.

SEC source: 0001562180-25-004855 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,058

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 12, 2026 or (ii) immediately before the Issuer's 2026 annual meeting of stockholders, subject to the reporting person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 14,906 RSUs.

SEC source: 0001562180-25-004823 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 92,500

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on March 12, 2025.

F2 · price: This transaction was executed in multiple trades in prices ranging from $12.3000 to $12.6800, 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.

SEC source: 0001562180-25-004822 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,152

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 $12.3000 to $12.6900, 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.

SEC source: 0001562180-25-005458 · primarydocument.xml · derivative · entry 4

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 104,500

Underlying: Class A Common Stock · 7,500 shares

Expires 2030-12-15

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

F3 · derivative.exercise_date: The option is early exercisable. 1/48th of the shares subject to the option vest on each monthly anniversary measured from December 10, 2020 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001562180-25-005458 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 100,000

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.

SEC source: 0001562180-25-004067 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 87,654

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 $11.5900 to $11.8900, 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 18,894 RSUs.

SEC source: 0001562180-25-004002 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,182,507

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 990,782 RSUs.

SEC source: 0001562180-25-004004 · 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: 827,345

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 781,805 RSUs.