AMPL

SEC source: 0001610717-26-000433 · form4.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,992

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 29,086 RSUs.

SEC source: 0001610717-26-000432 · form4.xml · nonDerivative · entry 1

Tzuo Tien · CIK 0001735409 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,419

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 51,607 RSUs.

SEC source: 0001610717-26-000427 · form4.xml · derivative · entry 3

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 307,157

Underlying: Class A Common Stock · 70,087 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: 0001610717-26-000427 · form4.xml · nonDerivative · entry 2

Skates Spenser · CIK 0001882913 · Director · CEO and President · 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 June 11, 2026.

F3 · price: This transaction was executed in multiple trades at prices ranging from $14.4500 to $14.6700. 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: 0001610717-26-000427 · form4.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 70,087

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: 0001610717-26-000424 · form4.xml · derivative · entry 6

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 377,244

Underlying: Class A Common Stock · 3,539 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: 0001610717-26-000424 · form4.xml · nonDerivative · entry 4

Skates Spenser · CIK 0001882913 · Director · CEO and President · 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 June 11, 2026.

SEC source: 0001610717-26-000424 · form4.xml · nonDerivative · entry 3

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 3,539

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: 0001610717-26-000424 · form4.xml · derivative · entry 5

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 380,783

Underlying: Class A Common Stock · 1,374 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: 0001610717-26-000424 · form4.xml · nonDerivative · entry 2

Skates Spenser · CIK 0001882913 · Director · CEO and President · 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 June 11, 2026.

F3 · price: This transaction was executed in multiple trades at prices ranging from $14.4500 to $14.4700. 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: 0001610717-26-000424 · form4.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 1,374

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: 0001866692-26-000018 · form4.xml · derivative · entry 3

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 382,157

Underlying: Class A Common Stock · 185,000 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: 0001866692-26-000018 · form4.xml · nonDerivative · entry 2

Skates Spenser · CIK 0001882913 · Director · CEO and President · 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 June 11, 2026.

F3 · price: This transaction was executed in multiple trades at prices ranging from $12.0300 to $12.5100. 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: 0001866692-26-000018 · form4.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Spouse

Disclosed balance after: 185,000

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: 0001866692-26-000015 · form4.xml · nonDerivative · entry 1

Crook Nathaniel Glenn · CIK 0002121274 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,622,696

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on June 2, 2026.

F2 · price: This transaction was executed in multiple trades at prices ranging from $12.6150 to $13.5100. 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 1,241,362 restricted stock units.

SEC source: 0001866692-26-000012 · form4.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,231,188

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the Reporting Person.

F2 · balance_after: Includes 1,102,599 RSUs.

SEC source: 0001866692-26-000010 · form4.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,363,338

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the Reporting Person.

F2 · balance_after: Includes 814,949 RSUs.

SEC source: 0001866692-26-000013 · form4.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: 950,316

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the Reporting Person.

F2 · balance_after: Includes 774,628 RSUs.

SEC source: 0001866692-26-000011 · form4.xml · nonDerivative · entry 1

Crook Nathaniel Glenn · CIK 0002121274 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,922,696

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the Reporting Person.

F2 · balance_after: Includes 1,241,362 RSUs.

SEC source: 0001883022-26-000016 · primarydocument.xml · derivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 175,000

Underlying: Class A Common Stock · 175,000 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 the reporting person, (c) the date that is six months following the date on which the reporting person is no longer an employee or director of the Issuer (unless such reporting person 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 trust to the reporting person's spouse. 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 the reporting person, (c) the date that is six months following the date on which the reporting person is no longer an employee or director of the Issuer (unless such reporting person 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 the reporting person, (c) the date that is six months following the date on which the reporting person is no longer an employee or director of the Issuer (unless such reporting person 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: 0001883022-26-000016 · primarydocument.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 7,207,208

Underlying: Class A Common Stock · 175,000 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 the reporting person, (c) the date that is six months following the date on which the reporting person is no longer an employee or director of the Issuer (unless such reporting person 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 trust to the reporting person's spouse. 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 the reporting person, (c) the date that is six months following the date on which the reporting person is no longer an employee or director of the Issuer (unless such reporting person 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 the reporting person, (c) the date that is six months following the date on which the reporting person is no longer an employee or director of the Issuer (unless such reporting person 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).

F3 · ownership.nature: Securities held by a trust over which the reporting person exercises voting and dispositive control.

SEC source: 0001735409-26-000007 · primarydocument.xml · nonDerivative · entry 1

Tzuo Tien · CIK 0001735409 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,601

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 50,789 RSUs.

SEC source: 0001542687-26-000006 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,100

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 28,194 RSUs.

SEC source: 0001744910-26-000004 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 111,462

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 11, 2025.

F2 · price: This transaction was executed in multiple trades in prices ranging from $6.5800 to $6.9400, 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 24,857 RSUs.

SEC source: 0001292272-26-000002 · primarydocument.xml · nonDerivative · entry 1

Whitehurst James M · CIK 0001292272 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 187,201

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 9, 2027 or (ii) immediately before the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 36,214 RSUs.

SEC source: 0001744910-26-000002 · primarydocument.xml · nonDerivative · entry 1

Wong Catherine · CIK 0001744910 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,915

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 9, 2027 or (ii) immediately before the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 24,857 RSUs.

SEC source: 0001542687-26-000004 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 141,441

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 26,535 RSUs.

SEC source: 0001494474-26-000002 · primarydocument.xml · nonDerivative · entry 1

Gill Ronald S · CIK 0001494474 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,535

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 9, 2027 or (ii) immediately before the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board through such vesting date.

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) 58,657 RSUs.

SEC source: 0001610717-26-000214 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,806

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 9, 2027 or (ii) immediately before the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's continued service on the Board through such vesting date.

F2 · balance_after: Includes 24,857 RSUs.

SEC source: 0001883022-26-000014 · primarydocument.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,004,779

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 26, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $8.0000 to $8.0600. 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 880,520 restricted stock units.

SEC source: 0001610717-26-000228 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,004,194

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 26, 2025.

F2 · shares: This Form 4/A is being filed solely to correct the number of shares reported as sold on June 1, 2026 and the total number of shares owned following the transaction. Due to a broker administrative error, 585 fewer shares were sold than were required pursuant to the Reporting Person's Rule 10b5-1 trading plan. The error was corrected through the broker's error account, with the broker crediting the Reporting Person for the additional 585 shares at the applicable June 1, 2026 sale price and absorbing the cost of the correction. No additional open-market sale was effected in connection with the correction.

F3 · price: This transaction was executed in multiple trades at prices ranging from $8.0000 to $8.0600. 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.

F4 · balance_after: Includes 880,520 restricted stock units.

SEC source: 0001882913-26-000004 · primarydocument.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,283,557

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the Reporting Person.

F2 · balance_after: Includes 1,212,859 RSUs.

SEC source: 0002032390-26-000006 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,436,152

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the Reporting Person.

F2 · balance_after: Includes 958,054 RSUs.

F3 · balance_after: Includes 2,500 shares acquired under the Issuer's employee stock purchase plan on May 14, 2026.

SEC source: 0001883022-26-000012 · 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: 1,026,980

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the Reporting Person.

F2 · balance_after: Includes 880,520 RSUs.

SEC source: 0002121274-26-000004 · primarydocument.xml · nonDerivative · entry 1

Crook Nathaniel Glenn · CIK 0002121274 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,032,064

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the Reporting Person.

F2 · balance_after: Includes 1,471,366 RSUs.

F3 · balance_after: Includes 2,330 shares acquired under the Issuer's employee stock purchase plan on May 14, 2026.

SEC source: 0001883022-26-000010 · primarydocument.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,067,259

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 26, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $8.0000 to $8.2200. 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 986,412 restricted stock units.

SEC source: 0001882913-26-000002 · primarydocument.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · CEO and President · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,323,119

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, 2026, subject to the continued service of the Reporting Person through each vesting date.

F2 · balance_after: Includes 1,323,119 RSUs.

SEC source: 0002032390-26-000004 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,498,524

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, 2026, subject to the continued service of the reporting person through each vesting date.

F2 · balance_after: Includes 1,101,159 RSUs.

SEC source: 0001883022-26-000008 · 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: 1,084,845

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, 2026, subject to the continued service of the reporting person through each vesting date.

F2 · balance_after: Includes 986,412 RSUs.

F3 · balance_after: The Form 4s filed by the reporting person on March 9, 2026 and March 10, 2026 understated the reporting person's beneficial ownership by 63,262 shares. The correct number of shares beneficially owned following the transaction on April 15, 2026 is reflected herein.

SEC source: 0002121274-26-000002 · primarydocument.xml · nonDerivative · entry 2

Crook Nathaniel Glenn · CIK 0002121274 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,131,026

F3 · shares: Each 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, 2026, subject to the continued service of the reporting person through each vesting date.

F4 · balance_after: Includes 1,701,371 RSUs.

SEC source: 0002121274-26-000002 · primarydocument.xml · nonDerivative · entry 1

Crook Nathaniel Glenn · CIK 0002121274 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,156,096

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 four substantially equal quarterly installments beginning on May 15, 2026, subject to the continued service of the reporting person through each vesting date.

F2 · balance_after: Includes 726,441 restricted stock units.

SEC source: 0001542687-26-000002 · primarydocument.xml · nonDerivative · entry 1

Schultz Erica · CIK 0001542687 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,584

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 16,584 RSUs.

SEC source: 0001735409-26-000005 · primarydocument.xml · nonDerivative · entry 1

Tzuo Tien · CIK 0001735409 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,080

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 49,268 RSUs.

SEC source: 0001883022-26-000006 · primarydocument.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 603,756

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on November 26, 2025.

F2 · price: This transaction was executed in multiple trades at prices ranging from $8.00 to $8.04. 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 568,585 restricted stock units.

SEC source: 0001883022-26-000005 · primarydocument.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 636,957

F1 · shares: The sales reported were effected pursuant to a 10b5-1 trading plan adopted by the reporting person on November 26, 2025.

F2 · price: This transaction was executed in multiple trades in prices ranging from $8.00 to $8.02, 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 568,585 restricted stock units.

SEC source: 0002032390-26-000002 · primarydocument.xml · nonDerivative · entry 1

Casey Andrew · CIK 0002032390 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,066,770

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 669,405 RSUs.

SEC source: 0001883022-26-000002 · 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: 730,280

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 568,585 RSUs.

SEC source: 0001728084-26-000002 · primarydocument.xml · nonDerivative · entry 1

HANSEN THOMAS NEERGAARD · CIK 0001728084 · President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,845,845

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, 2026, from the vesting of restricted stock units ("RSUs"), and does not represent a sale by the reporting person.

F2 · balance_after: Includes 960,020 RSUs.

SEC source: 0001735409-26-000003 · primarydocument.xml · nonDerivative · entry 1

Tzuo Tien · CIK 0001735409 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,542

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 47,730 RSUs.

SEC source: 0001882913-25-000007 · 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: 567,157

Underlying: Class A Common Stock · 100 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).