Landesberg Stuart

SEC source: 0001841761-26-000100 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,688,908

F1 · price: The transaction was executed in multiple trades in prices ranging from $1.03 to $1.05, inclusive. The price reported in Column 4 above reflects the weighted average purchase price. The Reporting person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares purchased at each respective price within the range set forth in this footnote of this Form 4. CANCEL

SEC source: 0001841761-26-000098 · form4.xml · nonDerivative · entry 2

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,673,735

F1 · price: The transaction was executed in multiple trades in prices ranging from $1.04 to $1.05, inclusive. The price reported in Column 4 above reflects the weighted average purchase price. The Reporting person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares purchased at each respective price within the range set forth in this footnote of this Form 4.

SEC source: 0001841761-26-000098 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,671,851

F1 · price: The transaction was executed in multiple trades in prices ranging from $1.04 to $1.05, inclusive. The price reported in Column 4 above reflects the weighted average purchase price. The Reporting person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares purchased at each respective price within the range set forth in this footnote of this Form 4.

SEC source: 0001841761-26-000096 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,668,908

SEC source: 0001841761-26-000094 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,668,667

F1 · price: The transaction was executed in multiple trades in prices ranging from $1.02 to $1.03, inclusive. The price reported in Column 4 above reflects the weighted average purchase price. The Reporting person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares purchased at each respective price within the range set forth in this footnote of this Form 4.

SEC source: 0001841761-26-000080 · form4.xml · derivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,159

Underlying: Class A Common Stock · 64,159 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F2 · derivative.exercise_date: These RSUs will fully vest on the earlier of May 15, 2027 or the date of the 2027 Annual Meeting of Stockholders.

F3 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001841761-26-000047 · form4.xml · derivative · entry 3

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 59,200 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F3 · derivative.exercise_date: These RSUs will fully vest on the earlier of May 15, 2026 or the date of the 2026 Annual Meeting of Stockholders.

F4 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001841761-26-000047 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,583,447

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001841761-26-000003 · form4.xml · derivative · entry 4

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 45,059 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F4 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001841761-26-000003 · form4.xml · nonDerivative · entry 2

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,524,247

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001841761-26-000003 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,542,713

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001841761-25-000053 · form4.xml · derivative · entry 4

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,059

Underlying: Class A Common Stock · 45,057 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F4 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001841761-25-000053 · form4.xml · nonDerivative · entry 2

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,497,654

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001841761-25-000053 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,513,731

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001127602-25-020742 · form4.xml · derivative · entry 7

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 75,620 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F4 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-25-020742 · form4.xml · derivative · entry 6

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,116

Underlying: Class A Common Stock · 45,057 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F4 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-25-020742 · form4.xml · nonDerivative · entry 4

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,468,674

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001127602-25-020742 · form4.xml · nonDerivative · entry 3

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,495,656

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001127602-25-020742 · form4.xml · nonDerivative · entry 2

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,420,036

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001127602-25-020742 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,436,113

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001127602-25-019116 · form4.xml · derivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,200

Underlying: Class A Common Stock · 59,200 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F2 · derivative.exercise_date: These RSUs will fully vest on the earlier of May 15, 2026 or the date of the 2026 Annual Meeting of Stockholders.

F3 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-25-015565 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,391,056

F1 · price: The transaction was executed in multiple trades in prices ranging from $1.16 to $1.25, inclusive. The price reported in Column 4 above reflects the weighted average purchase price. The Reporting person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares purchased at each respective price within the range set forth in this footnote of this Form 4.

SEC source: 0001127602-25-014794 · form4.xml · derivative · entry 7

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,620

Underlying: Class A Common Stock · 75,615 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F4 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-25-014794 · form4.xml · derivative · entry 6

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,173

Underlying: Class A Common Stock · 45,057 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F4 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-25-014794 · form4.xml · nonDerivative · entry 4

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,376,056

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001127602-25-014794 · form4.xml · nonDerivative · entry 3

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,403,036

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001127602-25-014794 · form4.xml · nonDerivative · entry 2

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,327,421

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001127602-25-014794 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,343,498

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001127602-25-005751 · form4.xml · derivative · entry 13

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,235

Underlying: Class A Common Stock · 75,615 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F7 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-25-005751 · form4.xml · derivative · entry 12

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,230

Underlying: Class A Common Stock · 45,057 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F7 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-25-005751 · form4.xml · derivative · entry 11

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,662 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F6 · derivative.exercise_date: These RSUs shall vest in two equal installments on each of February 15, 2023 and May 15, 2023, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-25-005751 · form4.xml · derivative · entry 10

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 28,042 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F4 · derivative.exercise_date: These RSUs will vest in equal installments on each February 15, May 15, August 15 and November 15 until becoming fully vested on February 15, 2025, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-25-005751 · form4.xml · nonDerivative · entry 8

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,298,441

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001127602-25-005751 · form4.xml · nonDerivative · entry 7

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,325,870

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001127602-25-005751 · form4.xml · nonDerivative · entry 6

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,250,255

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001127602-25-005751 · form4.xml · nonDerivative · entry 5

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,268,720

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001127602-25-005751 · form4.xml · nonDerivative · entry 4

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,223,663

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001127602-25-005751 · form4.xml · nonDerivative · entry 3

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,225,164

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001127602-25-005751 · form4.xml · nonDerivative · entry 2

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,221,502

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001127602-25-005751 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,232,994

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001841761-26-000056 · form4.xml · derivative · entry 4

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A Common Stock · 12,593 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 · security: These shares of Class B common stock converted into shares of Class A common stock on a 1-for-1 basis as a result of an automatic conversion trigger event. They remain subject to the price conditions as outlined in footnote 1.

F3 · derivative.exercise_price: These shares of Class B common stock converted into shares of Class A common stock on a 1-for-1 basis as a result of an automatic conversion trigger event. They remain subject to the price conditions as outlined in footnote 1.

F6 · shares: Figures reflect a 1-for-5 reverse stock split effected by the Issuer after market close on June 5, 2023.

F8 · shares: This amount reflects an additional 117 Class B Shares that the Reporting Person received in connection with the redistribution of forfeited Class B Shares, pursuant to the terms of the Merger Agreement, to other holders of Class B Shares on a pro rata basis based upon the allocation of Class B Shares as of the closing of the Business Combination. Such pro rata redistribution of Class B Shares is exempt from Section 16 pursuant to Rule 16a-9 under the Securities Exchange Act of 1934.

F3 · derivative.exercise_date: These shares of Class B common stock converted into shares of Class A common stock on a 1-for-1 basis as a result of an automatic conversion trigger event. They remain subject to the price conditions as outlined in footnote 1.

F1 · derivative.expiration_date: This amount consists entirely of Class A Earnout Shares, which are subject to the following Milestones: The "Milestones" are defined in the Merger Agreement as follows: (i) 50% of the Earnout Shares automatically vest if the daily volume weighted average price ("VWAP") of the shares of Class A Common Stock is greater than or equal to $62.50 per share for any 20 trading days within any 30-trading-day period; and (ii) 50% of the Earnout Shares automatically vest if the daily VWAP of the shares of Class A Common Stock is greater than or equal to $75.00 per share for any 20 trading days within any 30-trading-day period, each subject to certain change-of-control provisions. (to be continued)

F2 · derivative.expiration_date: (continued) In addition, any Earnout Shares issued in exchange for Grove RSUs or options are subject to the same vesting terms as the underlying RSUs and options and, if the underlying RSU or option is forfeited, the corresponding Earnout Shares will also be forfeited and distributed to the other holder of Grove securities as if immediately prior to the closing of the Business Combination on a pro rata basis.

F6 · derivative.underlying_shares: Figures reflect a 1-for-5 reverse stock split effected by the Issuer after market close on June 5, 2023.

F4 · ownership.nature: These securities are directly held by The Landesberg Living Trust, dated October 15, 2021, for which the Reporting Person and his spouse serve as co-trustees.

SEC source: 0001841761-26-000056 · form4.xml · derivative · entry 3

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 79,836 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 · security: These shares of Class B common stock converted into shares of Class A common stock on a 1-for-1 basis as a result of an automatic conversion trigger event. They remain subject to the price conditions as outlined in footnote 1.

F3 · derivative.exercise_price: These shares of Class B common stock converted into shares of Class A common stock on a 1-for-1 basis as a result of an automatic conversion trigger event. They remain subject to the price conditions as outlined in footnote 1.

F6 · shares: Figures reflect a 1-for-5 reverse stock split effected by the Issuer after market close on June 5, 2023.

F7 · shares: This amount reflects an additional 745 Class B Shares that the Reporting Person received in connection with the redistribution of forfeited Class B Shares, pursuant to the terms of the Merger Agreement, to other holders of Class B Shares on a pro rata basis based upon the allocation of Class B Shares as of the closing of the Business Combination. Such pro rata redistribution of Class B Shares is exempt from Section 16 pursuant to Rule 16a-9 under the Securities Exchange Act of 1934.

F3 · derivative.exercise_date: These shares of Class B common stock converted into shares of Class A common stock on a 1-for-1 basis as a result of an automatic conversion trigger event. They remain subject to the price conditions as outlined in footnote 1.

F1 · derivative.expiration_date: This amount consists entirely of Class A Earnout Shares, which are subject to the following Milestones: The "Milestones" are defined in the Merger Agreement as follows: (i) 50% of the Earnout Shares automatically vest if the daily volume weighted average price ("VWAP") of the shares of Class A Common Stock is greater than or equal to $62.50 per share for any 20 trading days within any 30-trading-day period; and (ii) 50% of the Earnout Shares automatically vest if the daily VWAP of the shares of Class A Common Stock is greater than or equal to $75.00 per share for any 20 trading days within any 30-trading-day period, each subject to certain change-of-control provisions. (to be continued)

F2 · derivative.expiration_date: (continued) In addition, any Earnout Shares issued in exchange for Grove RSUs or options are subject to the same vesting terms as the underlying RSUs and options and, if the underlying RSU or option is forfeited, the corresponding Earnout Shares will also be forfeited and distributed to the other holder of Grove securities as if immediately prior to the closing of the Business Combination on a pro rata basis.

F6 · derivative.underlying_shares: Figures reflect a 1-for-5 reverse stock split effected by the Issuer after market close on June 5, 2023.

SEC source: 0001841761-26-000056 · form4.xml · nonDerivative · entry 2

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,663,283

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

F1 · shares: This amount consists entirely of Class A Earnout Shares, which are subject to the following Milestones: The "Milestones" are defined in the Merger Agreement as follows: (i) 50% of the Earnout Shares automatically vest if the daily volume weighted average price ("VWAP") of the shares of Class A Common Stock is greater than or equal to $62.50 per share for any 20 trading days within any 30-trading-day period; and (ii) 50% of the Earnout Shares automatically vest if the daily VWAP of the shares of Class A Common Stock is greater than or equal to $75.00 per share for any 20 trading days within any 30-trading-day period, each subject to certain change-of-control provisions. (to be continued)

F2 · shares: (continued) In addition, any Earnout Shares issued in exchange for Grove RSUs or options are subject to the same vesting terms as the underlying RSUs and options and, if the underlying RSU or option is forfeited, the corresponding Earnout Shares will also be forfeited and distributed to the other holder of Grove securities as if immediately prior to the closing of the Business Combination on a pro rata basis.

F3 · price: These shares of Class B common stock converted into shares of Class A common stock on a 1-for-1 basis as a result of an automatic conversion trigger event. They remain subject to the price conditions as outlined in footnote 1.

F5 · balance_after: The balance is the reporting person's current balance as of 06/02/2026.

SEC source: 0001841761-26-000056 · form4.xml · nonDerivative · entry 1

Landesberg Stuart · CIK 0001930721 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 136,151

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

F1 · shares: This amount consists entirely of Class A Earnout Shares, which are subject to the following Milestones: The "Milestones" are defined in the Merger Agreement as follows: (i) 50% of the Earnout Shares automatically vest if the daily volume weighted average price ("VWAP") of the shares of Class A Common Stock is greater than or equal to $62.50 per share for any 20 trading days within any 30-trading-day period; and (ii) 50% of the Earnout Shares automatically vest if the daily VWAP of the shares of Class A Common Stock is greater than or equal to $75.00 per share for any 20 trading days within any 30-trading-day period, each subject to certain change-of-control provisions. (to be continued)

F2 · shares: (continued) In addition, any Earnout Shares issued in exchange for Grove RSUs or options are subject to the same vesting terms as the underlying RSUs and options and, if the underlying RSU or option is forfeited, the corresponding Earnout Shares will also be forfeited and distributed to the other holder of Grove securities as if immediately prior to the closing of the Business Combination on a pro rata basis.

F3 · price: These shares of Class B common stock converted into shares of Class A common stock on a 1-for-1 basis as a result of an automatic conversion trigger event. They remain subject to the price conditions as outlined in footnote 1.

F4 · ownership.nature: These securities are directly held by The Landesberg Living Trust, dated October 15, 2021, for which the Reporting Person and his spouse serve as co-trustees.

SEC source: 0001127602-24-027673 · form4.xml · derivative · entry 10

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 226,850

Underlying: Class A Common Stock · 75,615 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F6 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-24-027673 · form4.xml · derivative · entry 9

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 225,287

Underlying: Class A Common Stock · 45,057 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F6 · derivative.exercise_date: These RSUs will vest in twelve equal installments on each February 15th, May 15th, August 15th and November 15th of each year (provided, that if such date occurs on a weekend or federal holiday, vesting shall occur on the next business day) beginning on May 15, 2023, with accelerated vesting following a change in control if the Reporting Person's services are terminated by the Issuer without cause or the Reporting Person resigns for good reason.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-24-027673 · form4.xml · derivative · entry 8

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,042

Underlying: Class A Common Stock · 31,702 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 ("RSU") represents a contingent right to receive one share of class A Common Stock

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

F4 · derivative.exercise_date: These RSUs will vest in equal installments on each February 15, May 15, August 15 and November 15 until becoming fully vested on February 15, 2025, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

F5 · derivative.expiration_date: The RSUs have no expiration date.

SEC source: 0001127602-24-027673 · form4.xml · nonDerivative · entry 6

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,204,952

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.

SEC source: 0001127602-24-027673 · form4.xml · nonDerivative · entry 5

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,243,274

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of class A Common Stock

SEC source: 0001127602-24-027673 · form4.xml · nonDerivative · entry 4

Landesberg Stuart · CIK 0001930721 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,167,659

F2 · shares: These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock award. The amount retained by the Company was not in excess of the amount of the tax liability.