Dinur Arnon

SEC source: 0001628280-26-056314 · wk-form4_1786568110.xml · nonDerivative · entry 2

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,214

SEC source: 0001628280-26-056314 · wk-form4_1786568110.xml · nonDerivative · entry 1

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,214

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 27

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North II Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 3,837 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 26

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North VII LP

Disclosed balance after: 0

Underlying: Common Stock · 659,229 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 25

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV III Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 161,493 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 24

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North II Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 80,747 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 23

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 485,756 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 22

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV III Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 4,956 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 21

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North II Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 2,477 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 20

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV III Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 284,980 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 19

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North II Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 171,536 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 18

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV III Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 32,647 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 17

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV III Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 114,975 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 16

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North II Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 911,435 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · derivative · entry 15

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North II Limited Partnership

Disclosed balance after: 0

Underlying: Common Stock · 3,038,251 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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 14

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV Limited Partnership

Disclosed balance after: 485,756

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 13

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV III Limited Partnership

Disclosed balance after: 573,801

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 12

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North II Limited Partnership

Disclosed balance after: 4,368,121

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 11

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North VII LP

Disclosed balance after: 815,479

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 10

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,434

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F5 · shares: Includes 5,434 restricted stock units ("RSUs"), which vest over a period of 15 months following the grant date of September 11, 2025, with 80% of the award vesting on the one-year anniversary of the grant date and the remaining portion vesting on the 15-month anniversary of the grant date. Each RSU represents a contingent right to receive one share of Class A Common Stock.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 9

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV Limited Partnership

Disclosed balance after: 0

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 8

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV III Limited Partnership

Disclosed balance after: 0

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 7

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North II Limited Partnership

Disclosed balance after: 0

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 6

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North VII LP

Disclosed balance after: 0

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 5

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F4 · kind: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

F4 · price: (cont'd from Footnote 3) The Reporting Person is the Partner of each of the foregoing entities and exercises voting and investment power over the securities held by each of the foregoing entities. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 4

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV Limited Partnership

Disclosed balance after: 485,756

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 3

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North FXV III Limited Partnership

Disclosed balance after: 573,801

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 2

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North II Limited Partnership

Disclosed balance after: 4,368,121

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-25-000009 · wk-form4_1757985634.xml · nonDerivative · entry 1

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By 83North VII LP

Disclosed balance after: 815,479

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: Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO Closing"), each share of Series A, B, C, D, E, F and G-1 Preferred Stock was automatically converted into Common Stock on a 1:1 basis.

F2 · ownership.nature: Immediately prior to the IPO Closing, each share of Common Stock was automatically reclassified into one share of Class A Common Stock pursuant to a reclassification exempt under Rule 16b-7.

F3 · ownership.nature: Each of 83North II Manager, Ltd. ("83North II Manager"), the ultimate general partner of 83North II Limited Partnership ("83North II"), and 83North II G.P., L.P., the general partner of 83North II, have combined voting and investment power over the shares held by 83North II. Each of 83North 2019 Manager, Ltd., the ultimate general partner of 83North FXV Limited Partnership ("83North FXV"), and 83North 2019 G.P. L.P., the general partner of 83North FXV, have combined voting and investment power over the shares held by 83North FXV. Each of 83North FXV Manager, Ltd. ("83North FXV Manager"), the ultimate general partner of 83North VII LP ("83North VII") and 83North FXV III Limited Partnership ("83North FXV III"), and 83North FXV III G.P. L.P., the general partner of 83North FXV III and 83North VII, have combined voting and investment power over the shares held by 83North FXV III and 83North VII. (cont'd in Footnote 4)

SEC source: 0001863955-24-000002 · wk-form4_1718663465.xml · derivative · entry 4

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,387

Underlying: Class A Common Stock · 38,387 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit is convertible into one share of Class A Common Stock.

F5 · derivative.exercise_date: All of the shares vest in full on the earlier of (i) June 13, 2025 or (ii) the Issuer's next annual meeting of stockholders; provided, however, that all vesting will cease if the Reporting Person ceases to provide services to the Issuer, unless the Issuer's Board of Directors determines otherwise prior to the cessation of such services.

F5 · derivative.expiration_date: All of the shares vest in full on the earlier of (i) June 13, 2025 or (ii) the Issuer's next annual meeting of stockholders; provided, however, that all vesting will cease if the Reporting Person ceases to provide services to the Issuer, unless the Issuer's Board of Directors determines otherwise prior to the cessation of such services.

SEC source: 0001863955-24-000002 · wk-form4_1718663465.xml · derivative · entry 3

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 40,241 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 is convertible into one share of Class A Common Stock.

F1 · kind: Transaction exempt from Section 16(b) of the Securities Exchange Act of 1934 (the "Act") pursuant to Rule 16b-6(b) promulgated under the Act.

F4 · derivative.exercise_date: Restricted stock units granted on June 22, 2023, the date of the Issuer's 2023 Annual Meeting of Stockholders, that vested in full on June 13, 2024, the date of the Issuer's 2024 Annual Meeting of Stockholders.

F4 · derivative.expiration_date: Restricted stock units granted on June 22, 2023, the date of the Issuer's 2023 Annual Meeting of Stockholders, that vested in full on June 13, 2024, the date of the Issuer's 2024 Annual Meeting of Stockholders.

SEC source: 0001863955-24-000002 · wk-form4_1718663465.xml · nonDerivative · entry 2

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,826

F2 · kind: Represents shares that have been withheld by the Issuer to satisfy tax withholding and remittance obligations in connection with the net settlement of vested restricted stock units and not a market transaction. Transaction exempt from Section 16(b) of the Act pursuant to Rule 16b-3(e) promulgated under the Act.

SEC source: 0001863955-24-000002 · wk-form4_1718663465.xml · nonDerivative · entry 1

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,241

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

F1 · kind: Transaction exempt from Section 16(b) of the Securities Exchange Act of 1934 (the "Act") pursuant to Rule 16b-6(b) promulgated under the Act.

F1 · price: Transaction exempt from Section 16(b) of the Securities Exchange Act of 1934 (the "Act") pursuant to Rule 16b-6(b) promulgated under the Act.

SEC source: 0001863955-23-000002 · wk-form4_1687816649.xml · derivative · entry 1

Dinur Arnon · CIK 0001863955 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,241

Underlying: Class A Common Stock · 40,241 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit is convertible into one share of Class A Common Stock.

F2 · derivative.exercise_date: All of the shares vest in full on the earlier of (i) June 22, 2024 or (ii) the Issuer's next annual meeting of stockholders; provided, however, that all vesting will cease if the Reporting Person ceases to provide services to the Issuer, unless the Issuer's Board of Directors determines otherwise prior to the cessation of such services.

F2 · derivative.expiration_date: All of the shares vest in full on the earlier of (i) June 22, 2024 or (ii) the Issuer's next annual meeting of stockholders; provided, however, that all vesting will cease if the Reporting Person ceases to provide services to the Issuer, unless the Issuer's Board of Directors determines otherwise prior to the cessation of such services.