SI

SEC source: 0001641172-25-022246 · ownership.xml · nonDerivative · entry 3

Carusi Michael A · CIK 0001306506 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,666

F4 · shares: Represents an award of restricted stock units ("RSUs"). The RSUs will vest on the earlier of the date of the annual meeting of stockholders to be held in 2026 or August 1, 2026. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and has no expiration date.

SEC source: 0001641172-25-022246 · ownership.xml · nonDerivative · entry 2

Carusi Michael A · CIK 0001306506 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,885,136

F2 · ownership.nature: LSV Associates II, LLC is the general partner of Lightstone Ventures II, L.P. ("LSV II") and Lightstone Ventures II (A), L.P. ("LSV II (A)") and has sole voting and dispositive power with respect to the shares held by LSV II and LSV II (A). The reporting person is a managing director of LSV Associates II, LLC, and shares voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). The reporting person disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

F3 · ownership.nature: Following the transactions reported in this Form 4, (i) 1,781,479 shares of Common Stock are held by LSV II and (ii) 103,657 shares of Common Stock are held by LSV II (A).

SEC source: 0001641172-25-022246 · ownership.xml · nonDerivative · entry 1

Carusi Michael A · CIK 0001306506 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,618,470

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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F2 · ownership.nature: LSV Associates II, LLC is the general partner of Lightstone Ventures II, L.P. ("LSV II") and Lightstone Ventures II (A), L.P. ("LSV II (A)") and has sole voting and dispositive power with respect to the shares held by LSV II and LSV II (A). The reporting person is a managing director of LSV Associates II, LLC, and shares voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). The reporting person disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

F3 · ownership.nature: Following the transactions reported in this Form 4, (i) 1,781,479 shares of Common Stock are held by LSV II and (ii) 103,657 shares of Common Stock are held by LSV II (A).

SEC source: 0001641172-25-022242 · ownership.xml · derivative · entry 6

Ball Robert Joseph · CIK 0002070664 · Director · CEO & EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,676 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022242 · ownership.xml · derivative · entry 5

Ball Robert Joseph · CIK 0002070664 · Director · CEO & EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 37,032 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022242 · ownership.xml · derivative · entry 4

Ball Robert Joseph · CIK 0002070664 · Director · CEO & EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,301 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022242 · ownership.xml · derivative · entry 3

Ball Robert Joseph · CIK 0002070664 · Director · CEO & EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,228 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022242 · ownership.xml · derivative · entry 2

Ball Robert Joseph · CIK 0002070664 · Director · CEO & EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,651 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022242 · ownership.xml · nonDerivative · entry 1

Ball Robert Joseph · CIK 0002070664 · Director · CEO & EXECUTIVE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,259

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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022244 · ownership.xml · nonDerivative · entry 2

Buchholz Richard · CIK 0001737133 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,666

SEC source: 0001641172-25-022244 · ownership.xml · nonDerivative · entry 1

Buchholz Richard · CIK 0001737133 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,666

F1 · shares: Represents an award of restricted stock units ("RSUs"). The RSUs will vest on the earlier of the date of the annual meeting of stockholders to be held in 2026 or August 1, 2026. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and has no expiration date.

SEC source: 0001641172-25-022243 · ownership.xml · derivative · entry 6

Blue David Lawrence · CIK 0002071751 · SEE REMARKS

10b5-1 filing: No plan indicated

Ownership: Indirect · By David Lawrence Blue Living Trust

Disclosed balance after: 0

Underlying: Common Stock · 1,918 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022243 · ownership.xml · derivative · entry 5

Blue David Lawrence · CIK 0002071751 · SEE REMARKS

10b5-1 filing: No plan indicated

Ownership: Indirect · By David Lawrence Blue Living Trust

Disclosed balance after: 0

Underlying: Common Stock · 2,437 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022243 · ownership.xml · derivative · entry 4

Blue David Lawrence · CIK 0002071751 · SEE REMARKS

10b5-1 filing: No plan indicated

Ownership: Indirect · By David Lawrence Blue Living Trust

Disclosed balance after: 0

Underlying: Common Stock · 16,190 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022243 · ownership.xml · derivative · entry 3

Blue David Lawrence · CIK 0002071751 · SEE REMARKS

10b5-1 filing: No plan indicated

Ownership: Indirect · By David Lawrence Blue Living Trust

Disclosed balance after: 0

Underlying: Common Stock · 18,151 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022243 · ownership.xml · derivative · entry 2

Blue David Lawrence · CIK 0002071751 · SEE REMARKS

10b5-1 filing: No plan indicated

Ownership: Indirect · By David Lawrence Blue Living Trust

Disclosed balance after: 0

Underlying: Common Stock · 5,241 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.

F1 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022243 · ownership.xml · nonDerivative · entry 1

Blue David Lawrence · CIK 0002071751 · SEE REMARKS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,937

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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022251 · ownership.xml · derivative · entry 3

Sidow Kevin K. · CIK 0002072468 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,344 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022251 · ownership.xml · nonDerivative · entry 2

Sidow Kevin K. · CIK 0002072468 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,010

F2 · shares: Represents an award of restricted stock units ("RSUs"). The RSUs will vest on the earlier of the date of the annual meeting of stockholders to be held in 2026 or August 1, 2026. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and has no expiration date.

SEC source: 0001641172-25-022251 · ownership.xml · nonDerivative · entry 1

Sidow Kevin K. · CIK 0002072468 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,344

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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022249 · ownership.xml · derivative · entry 5

Pardo Geoffrey B · CIK 0001753143 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 537,326 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F2 · ownership.nature: Held directly by Cooperatieve Gilde Healthcare V U.A. ("Gilde"). Gilde Healthcare V Management B.V. is the managing director of Gilde and has sole voting and dispositive power with respect to the shares held by Gilde. Gilde Healthcare V Management B.V. is owned by Gilde Healthcare Holding B.V. and managed by Edwin de Graaf and Pieter van der Meer. Geoff Pardo is a partner at Gilde and may be deemed to share voting and dispositive power with respect to the shares held of record by Gilde. Mr. Pardo disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

SEC source: 0001641172-25-022249 · ownership.xml · derivative · entry 4

Pardo Geoffrey B · CIK 0001753143 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,743,156 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F2 · ownership.nature: Held directly by Cooperatieve Gilde Healthcare V U.A. ("Gilde"). Gilde Healthcare V Management B.V. is the managing director of Gilde and has sole voting and dispositive power with respect to the shares held by Gilde. Gilde Healthcare V Management B.V. is owned by Gilde Healthcare Holding B.V. and managed by Edwin de Graaf and Pieter van der Meer. Geoff Pardo is a partner at Gilde and may be deemed to share voting and dispositive power with respect to the shares held of record by Gilde. Mr. Pardo disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

SEC source: 0001641172-25-022249 · ownership.xml · nonDerivative · entry 3

Pardo Geoffrey B · CIK 0001753143 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,666

F3 · shares: Represents an award of restricted stock units ("RSUs"). The RSUs will vest on the earlier of the date of the annual meeting of stockholders to be held in 2026 or August 1, 2026. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and has no expiration date.

SEC source: 0001641172-25-022249 · ownership.xml · nonDerivative · entry 2

Pardo Geoffrey B · CIK 0001753143 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,380,482

F2 · ownership.nature: Held directly by Cooperatieve Gilde Healthcare V U.A. ("Gilde"). Gilde Healthcare V Management B.V. is the managing director of Gilde and has sole voting and dispositive power with respect to the shares held by Gilde. Gilde Healthcare V Management B.V. is owned by Gilde Healthcare Holding B.V. and managed by Edwin de Graaf and Pieter van der Meer. Geoff Pardo is a partner at Gilde and may be deemed to share voting and dispositive power with respect to the shares held of record by Gilde. Mr. Pardo disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

SEC source: 0001641172-25-022249 · ownership.xml · nonDerivative · entry 1

Pardo Geoffrey B · CIK 0001753143 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,280,482

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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F2 · ownership.nature: Held directly by Cooperatieve Gilde Healthcare V U.A. ("Gilde"). Gilde Healthcare V Management B.V. is the managing director of Gilde and has sole voting and dispositive power with respect to the shares held by Gilde. Gilde Healthcare V Management B.V. is owned by Gilde Healthcare Holding B.V. and managed by Edwin de Graaf and Pieter van der Meer. Geoff Pardo is a partner at Gilde and may be deemed to share voting and dispositive power with respect to the shares held of record by Gilde. Mr. Pardo disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

SEC source: 0001641172-25-022248 · ownership.xml · derivative · entry 4

Ahearn Matthew Fraser · CIK 0002070582 · Director · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,436 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022248 · ownership.xml · derivative · entry 3

Ahearn Matthew Fraser · CIK 0002070582 · Director · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 42,667 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022248 · ownership.xml · derivative · entry 2

Ahearn Matthew Fraser · CIK 0002070582 · Director · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 13,139 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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

SEC source: 0001641172-25-022248 · ownership.xml · nonDerivative · entry 1

Ahearn Matthew Fraser · CIK 0002070582 · Director · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,035

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 closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.