ACHR

SEC source: 0001797669-26-000004 · form4-03102026_120340.xml · nonDerivative · entry 1

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 377,022

F1 · kind: Represents shares of Class A Common Stock sold to satisfy tax withholding obligations incurred in connection with the vesting of restricted stock units, which vesting was separately reported on a Form 4 filed with the U.S. Securities and Exchange Commission on March 3, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.315 to $6.775 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 · balance_after: For clarity, the total reported in Table I after giving effect to the reported transaction has been corrected to reflect one additional share not included in the reporting person's previous Form 4 filed on March 3, 2026, due to administrative error.

SEC source: 0002064297-26-000002 · form4-03102026_120318.xml · nonDerivative · entry 1

Rungta Harsh · CIK 0002064297 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,458

F1 · kind: Represents shares of Class A Common Stock sold to satisfy tax withholding obligations incurred in connection with the vesting of restricted stock units, which vesting was separately reported on a Form 4 filed with the U.S. Securities and Exchange Commission on March 3, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.315 to $6.775 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 · balance_after: The reported total includes 2,569 shares of Class A Common Stock acquired by the reporting person in one or more transactions with the issuer pursuant to its employee stock purchase plan, which transactions are exempt pursuant to Rules 16a3(f)(1)(i)(B) and 16b3(c).

SEC source: 0001882348-26-000006 · form4-03102026_120310.xml · nonDerivative · entry 1

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,345,430

F1 · kind: Represents shares of Class A Common Stock sold to satisfy tax withholding obligations incurred in connection with the vesting of restricted stock units, which vesting was separately reported on a Form 4 filed with the U.S. Securities and Exchange Commission on March 3, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.315 to $6.775 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 · balance_after: For clarity, the total reported in Table I after giving effect to the reported transaction has been corrected to reflect one additional share not included in the reporting person's previous Form 4 filed on March 3, 2026, due to administrative error.

SEC source: 0002036956-26-000004 · form4-03042026_010355.xml · derivative · entry 6

Gupta Priya · CIK 0002036956 · Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,201

Underlying: Class A Common Stock · 10,291 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F5 · derivative.exercise_date: The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2026, and thereafter on May 15, August 15, November 15, and March 1

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002036956-26-000004 · form4-03042026_010355.xml · derivative · entry 5

Gupta Priya · CIK 0002036956 · Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,668

Underlying: Class A Common Stock · 6,524 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F4 · derivative.exercise_date: The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2025, and thereafter on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002036956-26-000004 · form4-03042026_010355.xml · derivative · entry 4

Gupta Priya · CIK 0002036956 · Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,332

Underlying: Class A Common Stock · 3,583 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F2 · derivative.exercise_date: The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2024, and thereafter on August 15, November 15, March 1, and May 15.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002036956-26-000004 · form4-03042026_010355.xml · nonDerivative · entry 3

Gupta Priya · CIK 0002036956 · Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,921

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: 0002036956-26-000004 · form4-03042026_010355.xml · nonDerivative · entry 2

Gupta Priya · CIK 0002036956 · Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,630

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: 0002036956-26-000004 · form4-03042026_010355.xml · nonDerivative · entry 1

Gupta Priya · CIK 0002036956 · Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 165,106

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: 0002016416-26-000003 · form4-03042026_010319.xml · derivative · entry 10

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,802

Underlying: Class A Common Stock · 15,436 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F7 · derivative.exercise_date: The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2026, and thereafter on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002016416-26-000003 · form4-03042026_010319.xml · derivative · entry 9

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,672

Underlying: Class A Common Stock · 26,096 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F6 · derivative.exercise_date: The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2025, and thereafter on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002016416-26-000003 · form4-03042026_010319.xml · derivative · entry 8

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,564

Underlying: Class A Common Stock · 8,945 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F5 · derivative.exercise_date: The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2024, and thereafter on August 15, November 15, March 1, and May 15.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002016416-26-000003 · form4-03042026_010319.xml · derivative · entry 7

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,186

Underlying: Class A Common Stock · 19,796 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F4 · derivative.exercise_date: The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2023, and thereafter on August 15, November 15, March 1, and May 15.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002016416-26-000003 · form4-03042026_010319.xml · derivative · entry 6

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,732

Underlying: Class A Common Stock · 22,866 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F2 · derivative.exercise_date: The award vested or vests as to: (i) 1/4 of the total award on August 15, 2023; and (ii) 1/16 of the total award quarterly thereafter on November 15, March 1, May 15, and August 15.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002016416-26-000003 · form4-03042026_010319.xml · nonDerivative · entry 5

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 176,872

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: 0002016416-26-000003 · form4-03042026_010319.xml · nonDerivative · entry 4

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 161,436

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: 0002016416-26-000003 · form4-03042026_010319.xml · nonDerivative · entry 3

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,340

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: 0002016416-26-000003 · form4-03042026_010319.xml · nonDerivative · entry 2

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,395

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: 0002016416-26-000003 · form4-03042026_010319.xml · nonDerivative · entry 1

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,599

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: 0001797669-26-000003 · form4-03042026_010300.xml · derivative · entry 10

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 141,502

Underlying: Class A Common Stock · 12,863 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F7 · derivative.exercise_date: The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2026, and thereafter on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001797669-26-000003 · form4-03042026_010300.xml · derivative · entry 9

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,672

Underlying: Class A Common Stock · 26,096 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F6 · derivative.exercise_date: The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2025, and thereafter on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001797669-26-000003 · form4-03042026_010300.xml · derivative · entry 8

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,710

Underlying: Class A Common Stock · 5,963 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F5 · derivative.exercise_date: The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2024, and thereafter on August 15, November 15, March 1, and May 15.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001797669-26-000003 · form4-03042026_010300.xml · derivative · entry 7

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,186

Underlying: Class A Common Stock · 19,796 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F4 · derivative.exercise_date: The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2023 and thereafter on August 15, November 15, March 1, and May 15.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001797669-26-000003 · form4-03042026_010300.xml · derivative · entry 6

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,457

Underlying: Class A Common Stock · 32,457 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F2 · derivative.exercise_date: The award vested or vests as to: (i) 1/4 of the total award on May 15, 2023; and (ii) 1/16 of the total award quarterly thereafter on August 15, November 15, March 1, and May 15.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001797669-26-000003 · form4-03042026_010300.xml · nonDerivative · entry 5

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 431,807

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: 0001797669-26-000003 · form4-03042026_010300.xml · nonDerivative · entry 4

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 418,944

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: 0001797669-26-000003 · form4-03042026_010300.xml · nonDerivative · entry 3

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 392,848

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: 0001797669-26-000003 · form4-03042026_010300.xml · nonDerivative · entry 2

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 386,885

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: 0001797669-26-000003 · form4-03042026_010300.xml · nonDerivative · entry 1

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 367,089

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: 0002064297-26-000001 · form4-03042026_010330.xml · derivative · entry 2

Rungta Harsh · CIK 0002064297 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 174,026

Underlying: Class A Common Stock · 85,715 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F2 · derivative.exercise_date: The award vested or vests as to: (i) 1/3 of the total award on March 1, 2026; and (ii) 1/12 of the total award quarterly thereafter on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002064297-26-000001 · form4-03042026_010330.xml · nonDerivative · entry 1

Rungta Harsh · CIK 0002064297 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,715

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: 0001882348-26-000005 · form4-03042026_010304.xml · derivative · entry 8

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,901

Underlying: Class A Common Stock · 7,718 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F6 · derivative.exercise_date: The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2026, and thereafter on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001882348-26-000005 · form4-03042026_010304.xml · derivative · entry 7

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,277

Underlying: Class A Common Stock · 7,612 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F5 · derivative.exercise_date: The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2025, and thereafter on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001882348-26-000005 · form4-03042026_010304.xml · derivative · entry 6

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,564

Underlying: Class A Common Stock · 8,945 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F4 · derivative.exercise_date: The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2024, and thereafter on August 15, November 15, March 1, and May 15.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001882348-26-000005 · form4-03042026_010304.xml · derivative · entry 5

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 718,750

Underlying: Class A Common Stock · 143,750 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

F2 · derivative.exercise_date: The award vested or vests as to: (i) 1/4 of the total award on May 15, 2024; and (ii) 1/16 of the total award quarterly thereafter on March 1, May 15, August 15, and November 15.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001882348-26-000005 · form4-03042026_010304.xml · nonDerivative · entry 4

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,440,154

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: 0001882348-26-000005 · form4-03042026_010304.xml · nonDerivative · entry 3

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,432,436

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: 0001882348-26-000005 · form4-03042026_010304.xml · nonDerivative · entry 2

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,424,824

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: 0001882348-26-000005 · form4-03042026_010304.xml · nonDerivative · entry 1

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,415,879

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: 0002036956-26-000003 · form4-02122026_010238.xml · derivative · entry 1

Gupta Priya · CIK 0002036956 · Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,492

Underlying: Class A Common Stock · 123,492 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the Issuer.

F2 · derivative.exercise_date: The award shall vest as to 1/12 of the total award, with the first tranche vesting on March 1, 2026, and thereafter quarterly on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0002016416-26-000002 · form4-02122026_010255.xml · derivative · entry 1

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 185,238

Underlying: Class A Common Stock · 185,238 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the Issuer.

F2 · derivative.exercise_date: The award shall vest as to 1/12 of the total award, with the first tranche vesting on March 1, 2026, and thereafter quarterly on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001797669-26-000002 · form4-02122026_010252.xml · derivative · entry 1

Perkins Tosha · CIK 0001797669 · CHIEF ADMINISTRATIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 154,365

Underlying: Class A Common Stock · 154,365 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the Issuer.

F2 · derivative.exercise_date: The award shall vest as to 1/12 of the total award, with the first tranche vesting on March 1, 2026, and thereafter quarterly on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001882348-26-000004 · form4-02122026_010251.xml · derivative · entry 1

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,619

Underlying: Class A Common Stock · 92,619 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the Issuer.

F2 · derivative.exercise_date: The award shall vest as to 1/12 of the total award, with the first tranche vesting on March 1, 2026, and thereafter quarterly on May 15, August 15, November 15, and March 1.

F3 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001882604-26-000003 · form4-01102026_010134.xml · derivative · entry 1

Goldstein Adam D · CIK 0001882604 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,300

Underlying: Class A Common Stock · 131,300 shares

Expires not disclosed

F1 · security: The transaction represents the certification of achievement of the first of three tranches of a performance-based restricted stock unit award granted to the reporting person by the Issuer's compensation committee on December 18, 2024 (the "2024 PRSU Award"). Vesting of each tranche of the 2024 PRSU Award is based on relative total stockholder return and is subject to the reporting person's continued service through the certification date of achievement of the relevant tranche.

F2 · derivative.exercise_price: Each deferred restricted stock unit represents a right to receive one share of the Issuer's Class A Common Stock at the end of the deferral period (which is described in footnote 3 below).

F3 · derivative.exercise_date: The deferred restricted stock units reported herein are fully vested and shall be settled for shares of the Issuer's Class A Common Stock at the end of the deferral period during calendar year 2029, on a date to be determined by the Issuer. Notwithstanding the aforementioned deferral period, deferred restricted stock units will automatically settle earlier upon the earliest to occur of: (i) the reporting person's death, disability (as defined under the Issuer's 2021 Amended and Restated Equity Incentive Plan (the "Plan")), or separation from service with the Issuer; (ii) a Change in Control (as defined under the Plan); or (iii) the occurrence of an "unforeseeable emergency" (as defined under Section 409A of the Internal Revenue Code).

F4 · derivative.expiration_date: Since the first tranche of this award has been certified as achieved, the deferred restricted stock units reported herein as awarded pursuant to the first tranche are not subject to expiration. The two remaining tranches of the 2024 PRSU Award may expire if the relevant performance criteria are not achieved within the applicable performance period for such tranche. The performance period for the second and third tranches ends on December 18, 2026 and 2027, respectively.

SEC source: 0001882348-26-000002 · form4-01072026_010136.xml · nonDerivative · entry 1

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,272,129

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 28, 2025, and amended on September 29, 2025.

SEC source: 0002036956-25-000004 · form4-11192025_011110.xml · nonDerivative · entry 3

Gupta Priya · CIK 0002036956 · Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 161,523

F1 · kind: Represents shares of Class A Common Stock of the issuer sold to satisfy the reporting person's tax withholding obligations, which were incurred in connection with the vesting of restricted stock units. In accordance with company policy, shares are automatically sold to cover such obligations.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.245 to $7.87, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0002016416-25-000002 · form4-11192025_011155.xml · nonDerivative · entry 5

Lentell Eric · CIK 0002016416 · Chief Legal & Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,733

F1 · kind: Represents shares of Class A Common Stock of the issuer sold to satisfy the reporting person's tax withholding obligations, which were incurred in connection with the vesting of restricted stock units. In accordance with company policy, shares are automatically sold to cover such obligations.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.245 to $7.87, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001797669-25-000004 · form4-11192025_011139.xml · nonDerivative · entry 5

Perkins Tosha · CIK 0001797669 · CHIEF PEOPLE PARTNERSHIPS OFF.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 334,632

F1 · kind: Represents shares of Class A Common Stock of the issuer sold to satisfy the reporting person's tax withholding obligations, which were incurred in connection with the vesting of restricted stock units. In accordance with company policy, shares are automatically sold to cover such obligations.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.245 to $7.87, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001882348-25-000003 · form4-11192025_011104.xml · nonDerivative · entry 4

Muniz Thomas Paul · CIK 0001882348 · CHIEF TECHNOLOGY OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,397,129

F1 · kind: Represents shares of Class A Common Stock of the issuer sold to satisfy the reporting person's tax withholding obligations, which were incurred in connection with the vesting of restricted stock units. In accordance with company policy, shares are automatically sold to cover such obligations.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.245 to $7.87, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0002036956-25-000004 · form4-11192025_011110.xml · derivative · entry 5

Gupta Priya · CIK 0002036956 · Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,192

Underlying: Class A Common Stock · 6,524 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.

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the Issuer.

F6 · derivative.exercise_date: The award vested or vests as to 1/12 of the total award beginning on March 1, 2025, and thereafter quarterly on May 15th, August 15th, November 15th, and March 1st.

F5 · derivative.expiration_date: These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.