NMRA

SEC source: 0000899243-23-019274 · doc4.xml · nonDerivative · entry 4

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Partners XII, LLC · CIK 0001979548 · 10% owner

ARCH Venture Partners XII, L.P. · CIK 0001979765 · 10% owner

ARCH Venture Fund XII, L.P. · CIK 0001906837 · 10% owner

CRANDELL KEITH · CIK 0001219039 · 10% owner

GILLIS STEVEN · CIK 0001229592 · 10% owner

NELSEN ROBERT · CIK 0001219042 · 10% owner

BYBEE CLINTON · CIK 0001219043 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund X Overage, L.P.

Disclosed balance after: 11,886,758

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

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F5 · ownership.nature: Represents shares held directly by ARCH Venture Fund X Overage, L.P. (ARCH X Overage). ARCH Venture Partners X Overage, L.P. (AVP X Overage LP) is the sole general partner of ARCH X Overage.

F6 · ownership.nature: ARCH Venture Partners X, LLC (AVP X LLC) is the sole general partner of each of AVP X LP and AVP X Overage LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP X LLC (the AVP X Committee Members). AVP X LLC may be deemed to beneficially own the shares held by ARCH X and ARCH X Overage, and each of the AVP X Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH X and ARCH X Overage. Each of AVP X LP, AVP X Overage LP, AVP X LLC and the AVP X Committee Members disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019274 · doc4.xml · nonDerivative · entry 3

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Partners XII, LLC · CIK 0001979548 · 10% owner

ARCH Venture Partners XII, L.P. · CIK 0001979765 · 10% owner

ARCH Venture Fund XII, L.P. · CIK 0001906837 · 10% owner

CRANDELL KEITH · CIK 0001219039 · 10% owner

GILLIS STEVEN · CIK 0001229592 · 10% owner

NELSEN ROBERT · CIK 0001219042 · 10% owner

BYBEE CLINTON · CIK 0001219043 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund X, L.P.

Disclosed balance after: 12,205,379

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

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F4 · ownership.nature: Represents shares held directly by ARCH Venture Fund X, L.P. (ARCH X). ARCH Venture Partners X, L.P. (AVP X LP) is the sole general partner of ARCH X.

F6 · ownership.nature: ARCH Venture Partners X, LLC (AVP X LLC) is the sole general partner of each of AVP X LP and AVP X Overage LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP X LLC (the AVP X Committee Members). AVP X LLC may be deemed to beneficially own the shares held by ARCH X and ARCH X Overage, and each of the AVP X Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH X and ARCH X Overage. Each of AVP X LP, AVP X Overage LP, AVP X LLC and the AVP X Committee Members disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019274 · doc4.xml · nonDerivative · entry 2

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Partners XII, LLC · CIK 0001979548 · 10% owner

ARCH Venture Partners XII, L.P. · CIK 0001979765 · 10% owner

ARCH Venture Fund XII, L.P. · CIK 0001906837 · 10% owner

CRANDELL KEITH · CIK 0001219039 · 10% owner

GILLIS STEVEN · CIK 0001229592 · 10% owner

NELSEN ROBERT · CIK 0001219042 · 10% owner

BYBEE CLINTON · CIK 0001219043 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund VIII Overage, L.P.

Disclosed balance after: 1,144,973

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

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Represents shares held directly by ARCH Venture Fund VIII Overage, L.P. (ARCH VIII Overage). ARCH Venture Partners VIII, LLC (AVP VIII LLC) is the general partner of ARCH VIII Overage. Clinton Bybee, Keith Crandell and Robert Nelsen are the managing directors of AVP VIII LLC (the AVP VIII LLC Managing Directors). AVP VIII LLC may be deemed to beneficially own the shares held by ARCH VIII Overage, and each of the AVP VIII LLC Managing Directors may be deemed to share the power to direct the disposition and vote of the shares held by ARCH VIII Overage. Each of AVP VIII LLC and the AVP VIII LLC Managing Directors disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019274 · doc4.xml · nonDerivative · entry 1

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Partners XII, LLC · CIK 0001979548 · 10% owner

ARCH Venture Partners XII, L.P. · CIK 0001979765 · 10% owner

ARCH Venture Fund XII, L.P. · CIK 0001906837 · 10% owner

CRANDELL KEITH · CIK 0001219039 · 10% owner

GILLIS STEVEN · CIK 0001229592 · 10% owner

NELSEN ROBERT · CIK 0001219042 · 10% owner

BYBEE CLINTON · CIK 0001219043 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund VII, L.P.

Disclosed balance after: 684,167

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

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Represents shares held directly by ARCH Venture Fund VII, L.P. (ARCH VII). ARCH Venture Partners VII, L.P. (AVP VII LP) is the sole general partner of ARCH VII, and ARCH Venture Partners VII, LLC (AVP VII LLC) is the sole general partner of AVP VII LP. Clinton Bybee, Keith Crandell and Robert Nelsen are the managing directors of AVP VII LLC (AVP VII LLC Managing Directors). AVP VII LP and AVP VII LLC may be deemed to beneficially own the shares held by ARCH VII, and each of the AVP VII LLC Managing Directors may be deemed to share the power to direct the disposition and vote of the shares held by ARCH VII. Each of AVP VII LP, AVP VII LLC and the AVP VII LLC Managing Directors disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · derivative · entry 11

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund XII, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 2,124,143 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F7 · ownership.nature: Represents shares held directly by ARCH Venture Fund XII, L.P. (ARCH XII). ARCH Venture Partners XII, L.P. (AVP XII LP) is the general partner of ARCH XII. ARCH Venture Partners XII, LLC (AVP XII LLC) is the general partner of AVP XII LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP XII LLC (the AVP XII LLC Committee Members). Each of AVP XII LP and AVP XII LLC may be deemed to beneficially own the shares held by ARCH XII, and each of the AVP XII LLC Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH XII. Each of AVP XII LP, AVP XII LLC and the AVP XII LLC Committee Members disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · derivative · entry 10

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund X Overage, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 6,576,400 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F5 · ownership.nature: Represents shares held directly by ARCH Venture Fund X Overage, L.P. (ARCH X Overage). ARCH Venture Partners X Overage, L.P. (AVP X Overage LP) is the sole general partner of ARCH X Overage.

F6 · ownership.nature: ARCH Venture Partners X, LLC (AVP X LLC) is the sole general partner of each of AVP X LP and AVP X Overage LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP X LLC (the AVP X Committee Members). AVP X LLC may be deemed to beneficially own the shares held by ARCH X and ARCH X Overage, and each of the AVP X Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH X and ARCH X Overage. Each of AVP X LP, AVP X Overage LP, AVP X LLC and the AVP X Committee Members disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · derivative · entry 9

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 6,895,021 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F4 · ownership.nature: Represents shares held directly by ARCH Venture Fund X, L.P. (ARCH X). ARCH Venture Partners X, L.P. (AVP X LP) is the sole general partner of ARCH X.

F6 · ownership.nature: ARCH Venture Partners X, LLC (AVP X LLC) is the sole general partner of each of AVP X LP and AVP X Overage LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP X LLC (the AVP X Committee Members). AVP X LLC may be deemed to beneficially own the shares held by ARCH X and ARCH X Overage, and each of the AVP X Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH X and ARCH X Overage. Each of AVP X LP, AVP X Overage LP, AVP X LLC and the AVP X Committee Members disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · derivative · entry 8

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund VIII Overage, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,144,973 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Represents shares held directly by ARCH Venture Fund VIII Overage, L.P. (ARCH VIII Overage). ARCH Venture Partners VIII, LLC (AVP VIII LLC) is the general partner of ARCH VIII Overage. Clinton Bybee, Keith Crandell and Robert Nelsen are the managing directors of AVP VIII LLC (the AVP VIII LLC Managing Directors). AVP VIII LLC may be deemed to beneficially own the shares held by ARCH VIII Overage, and each of the AVP VIII LLC Managing Directors may be deemed to share the power to direct the disposition and vote of the shares held by ARCH VIII Overage. Each of AVP VIII LLC and the AVP VIII LLC Managing Directors disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · derivative · entry 7

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund VII, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 684,167 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Represents shares held directly by ARCH Venture Fund VII, L.P. (ARCH VII). ARCH Venture Partners VII, L.P. (AVP VII LP) is the sole general partner of ARCH VII, and ARCH Venture Partners VII, LLC (AVP VII LLC) is the sole general partner of AVP VII LP. Clinton Bybee, Keith Crandell and Robert Nelsen are the managing directors of AVP VII LLC (AVP VII LLC Managing Directors). AVP VII LP and AVP VII LLC may be deemed to beneficially own the shares held by ARCH VII, and each of the AVP VII LLC Managing Directors may be deemed to share the power to direct the disposition and vote of the shares held by ARCH VII. Each of AVP VII LP, AVP VII LLC and the AVP VII LLC Managing Directors disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · nonDerivative · entry 6

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund XII, L.P.

Disclosed balance after: 3,624,143

F7 · ownership.nature: Represents shares held directly by ARCH Venture Fund XII, L.P. (ARCH XII). ARCH Venture Partners XII, L.P. (AVP XII LP) is the general partner of ARCH XII. ARCH Venture Partners XII, LLC (AVP XII LLC) is the general partner of AVP XII LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP XII LLC (the AVP XII LLC Committee Members). Each of AVP XII LP and AVP XII LLC may be deemed to beneficially own the shares held by ARCH XII, and each of the AVP XII LLC Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH XII. Each of AVP XII LP, AVP XII LLC and the AVP XII LLC Committee Members disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · nonDerivative · entry 5

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund XII, L.P.

Disclosed balance after: 2,124,143

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

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F7 · ownership.nature: Represents shares held directly by ARCH Venture Fund XII, L.P. (ARCH XII). ARCH Venture Partners XII, L.P. (AVP XII LP) is the general partner of ARCH XII. ARCH Venture Partners XII, LLC (AVP XII LLC) is the general partner of AVP XII LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP XII LLC (the AVP XII LLC Committee Members). Each of AVP XII LP and AVP XII LLC may be deemed to beneficially own the shares held by ARCH XII, and each of the AVP XII LLC Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH XII. Each of AVP XII LP, AVP XII LLC and the AVP XII LLC Committee Members disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · nonDerivative · entry 4

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund X Overage, L.P.

Disclosed balance after: 11,886,758

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

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F5 · ownership.nature: Represents shares held directly by ARCH Venture Fund X Overage, L.P. (ARCH X Overage). ARCH Venture Partners X Overage, L.P. (AVP X Overage LP) is the sole general partner of ARCH X Overage.

F6 · ownership.nature: ARCH Venture Partners X, LLC (AVP X LLC) is the sole general partner of each of AVP X LP and AVP X Overage LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP X LLC (the AVP X Committee Members). AVP X LLC may be deemed to beneficially own the shares held by ARCH X and ARCH X Overage, and each of the AVP X Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH X and ARCH X Overage. Each of AVP X LP, AVP X Overage LP, AVP X LLC and the AVP X Committee Members disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · nonDerivative · entry 3

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund X, L.P.

Disclosed balance after: 12,205,379

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

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F4 · ownership.nature: Represents shares held directly by ARCH Venture Fund X, L.P. (ARCH X). ARCH Venture Partners X, L.P. (AVP X LP) is the sole general partner of ARCH X.

F6 · ownership.nature: ARCH Venture Partners X, LLC (AVP X LLC) is the sole general partner of each of AVP X LP and AVP X Overage LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen comprise the investment committee of AVP X LLC (the AVP X Committee Members). AVP X LLC may be deemed to beneficially own the shares held by ARCH X and ARCH X Overage, and each of the AVP X Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH X and ARCH X Overage. Each of AVP X LP, AVP X Overage LP, AVP X LLC and the AVP X Committee Members disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · nonDerivative · entry 2

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund VIII Overage, L.P.

Disclosed balance after: 1,144,973

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

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Represents shares held directly by ARCH Venture Fund VIII Overage, L.P. (ARCH VIII Overage). ARCH Venture Partners VIII, LLC (AVP VIII LLC) is the general partner of ARCH VIII Overage. Clinton Bybee, Keith Crandell and Robert Nelsen are the managing directors of AVP VIII LLC (the AVP VIII LLC Managing Directors). AVP VIII LLC may be deemed to beneficially own the shares held by ARCH VIII Overage, and each of the AVP VIII LLC Managing Directors may be deemed to share the power to direct the disposition and vote of the shares held by ARCH VIII Overage. Each of AVP VIII LLC and the AVP VIII LLC Managing Directors disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.

SEC source: 0000899243-23-019273 · doc4.xml · nonDerivative · entry 1

ARCH Venture Partners X, LLC · CIK 0001769012 · 10% owner

ARCH Venture Fund X, L.P. · CIK 0001757011 · 10% owner

ARCH Venture Partners X, L.P. · CIK 0001782583 · 10% owner

ARCH Venture Fund X Overage, L.P. · CIK 0001757017 · 10% owner

ARCH Venture Partners X Overage, L.P. · CIK 0001768905 · 10% owner

ARCH Venture Partners VII, LLC · CIK 0001544443 · 10% owner

ARCH Venture Partners VII, L.P. · CIK 0001544444 · 10% owner

ARCH Venture Fund VII, L.P. · CIK 0001402439 · 10% owner

ARCH Venture Partners VIII, LLC · CIK 0001616165 · 10% owner

ARCH Venture Fund VIII Overage, L.P. · CIK 0001617237 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By ARCH Venture Fund VII, L.P.

Disclosed balance after: 684,167

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

F1 · price: The shares of Series A-1 Preferred Stock, Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Represents shares held directly by ARCH Venture Fund VII, L.P. (ARCH VII). ARCH Venture Partners VII, L.P. (AVP VII LP) is the sole general partner of ARCH VII, and ARCH Venture Partners VII, LLC (AVP VII LLC) is the sole general partner of AVP VII LP. Clinton Bybee, Keith Crandell and Robert Nelsen are the managing directors of AVP VII LLC (AVP VII LLC Managing Directors). AVP VII LP and AVP VII LLC may be deemed to beneficially own the shares held by ARCH VII, and each of the AVP VII LLC Managing Directors may be deemed to share the power to direct the disposition and vote of the shares held by ARCH VII. Each of AVP VII LP, AVP VII LLC and the AVP VII LLC Managing Directors disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.

SEC source: 0001209191-23-050240 · doc4.xml · derivative · entry 9

FMR LLC · CIK 0000315066 · See Remark 1

10b5-1 filing: No plan indicated

Ownership: Indirect · FBRI LLC

Disclosed balance after: 0

Underlying: Common Stock · 88,289 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: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · price: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · derivative.exercise_date: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · derivative.expiration_date: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

SEC source: 0001209191-23-050240 · doc4.xml · derivative · entry 8

FMR LLC · CIK 0000315066 · See Remark 1

10b5-1 filing: No plan indicated

Ownership: Indirect · F-Prime Capital Partners Life Sciences Fund VII LP

Disclosed balance after: 0

Underlying: Common Stock · 84,965 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: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · price: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · derivative.exercise_date: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · derivative.expiration_date: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

SEC source: 0001209191-23-050240 · doc4.xml · derivative · entry 7

FMR LLC · CIK 0000315066 · See Remark 1

10b5-1 filing: No plan indicated

Ownership: Indirect · F-Prime Capital Partners Life Sciences Fund VII LP

Disclosed balance after: 0

Underlying: Common Stock · 3,475,646 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: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · price: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · derivative.exercise_date: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · derivative.expiration_date: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

SEC source: 0001209191-23-050240 · doc4.xml · derivative · entry 6

FMR LLC · CIK 0000315066 · See Remark 1

10b5-1 filing: No plan indicated

Ownership: Indirect · F-Prime Inc.

Disclosed balance after: 0

Underlying: Common Stock · 63,724 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: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · price: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · derivative.exercise_date: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

F1 · derivative.expiration_date: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

SEC source: 0001209191-23-050240 · doc4.xml · nonDerivative · entry 5

FMR LLC · CIK 0000315066 · See Remark 1

10b5-1 filing: No plan indicated

Ownership: Indirect · FBRI LLC

Disclosed balance after: 88,289

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: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

SEC source: 0001209191-23-050240 · doc4.xml · nonDerivative · entry 4

FMR LLC · CIK 0000315066 · See Remark 1

10b5-1 filing: No plan indicated

Ownership: Indirect · F-Prime Inc.

Disclosed balance after: 63,724

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: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

SEC source: 0001209191-23-050240 · doc4.xml · nonDerivative · entry 3

FMR LLC · CIK 0000315066 · See Remark 1

10b5-1 filing: No plan indicated

Ownership: Indirect · F-Prime Capital Partners Life Sciences Fund VII LP

Disclosed balance after: 5,472,340

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

F1 · price: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

SEC source: 0001209191-23-050240 · doc4.xml · nonDerivative · entry 2

FMR LLC · CIK 0000315066 · See Remark 1

10b5-1 filing: No plan indicated

Ownership: Indirect · F-Prime Capital Partners Life Sciences Fund VII LP

Disclosed balance after: 5,387,375

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: On September 19, 2023, in connection with the completion of the issuer's initial public offering, each share of Series A-2 and B Preferred Shares converted on a 1-for-1 basis into shares of Common Stock.

SEC source: 0001610717-23-000289 · form4.xml · derivative · entry 4

AMGEN INC · CIK 0000318154 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 849,657 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · price: The shares of Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The shares of Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The shares of Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

SEC source: 0001610717-23-000289 · form4.xml · derivative · entry 3

AMGEN INC · CIK 0000318154 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 32,754,291 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · price: The shares of Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: The shares of Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: The shares of Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

SEC source: 0001610717-23-000289 · form4.xml · nonDerivative · entry 2

AMGEN INC · CIK 0000318154 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,368,653

SEC source: 0001610717-23-000289 · form4.xml · nonDerivative · entry 1

AMGEN INC · CIK 0000318154 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,603,948

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

F1 · price: The shares of Series A-2 Preferred Stock and Series B Preferred Stock of the Issuer automatically converted on a 1-for-1 basis into Common Stock of the Issuer immediately prior to the closing of the Issuer's initial public offering.

SEC source: 0001610717-23-000286 · form4.xml · derivative · entry 2

Lenz Robert A. · CIK 0001992908 · Head of R&D

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 502,934

Underlying: Common Stock · 502,934 shares

Expires 2033-09-13

F2 · derivative.exercise_date: 25% of the shares subject to the option vest on the first anniversary measured from September 11, 2023 (the "Vesting Commencement Date"), and 1/48th of the total number of shares vest monthly thereafter, such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date.

SEC source: 0001610717-23-000286 · form4.xml · nonDerivative · entry 1

Lenz Robert A. · CIK 0001992908 · Head of R&D

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 352,941

F1 · shares: Constitute restricted stock units ("RSUs") for which the Reporting Person is entitled to receive one (1) share of Common Stock for each RSU upon vesting. 1/4th of the RSUs vest annually on September 11 of each year, with the first 1/4th vesting on September 11, 2024.

SEC source: 0001610717-23-000285 · form4.xml · derivative · entry 1

Piacquad David · CIK 0001602343 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,455

Underlying: Common Stock · 46,455 shares

Expires 2033-09-13

F1 · derivative.exercise_date: 1/36th of the shares subject to the option vest on each monthly anniversary measured from September 8, 2023 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested and exercisable on the third anniversary of the Vesting Commencement Date.

SEC source: 0001610717-23-000284 · form4.xml · derivative · entry 1

Burow Kristina · CIK 0001569248 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,455

Underlying: Common Stock · 46,455 shares

Expires 2033-09-13

F1 · derivative.exercise_date: 1/36th of the shares subject to the option vest on each monthly anniversary measured from September 14, 2023 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested and exercisable on the third anniversary of the Vesting Commencement Date.

SEC source: 0001610717-23-000282 · form4.xml · derivative · entry 1

Fust Matthew K · CIK 0001397266 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,802

Underlying: Common Stock · 27,802 shares

Expires 2033-09-13

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest and become exercisable on the date of the 2024 Annual Meeting, subject to the Reporting Person continuing in service on the Board through such vesting date.

SEC source: 0001610717-23-000283 · form4.xml · derivative · entry 1

Halawa Alaa · CIK 0001992622 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,455

Underlying: Common Stock · 46,455 shares

Expires 2033-09-13

F1 · derivative.exercise_date: 1/36th of the shares subject to the option vest on each monthly anniversary measured from September 14, 2023 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested and exercisable on the third anniversary of the Vesting Commencement Date.

SEC source: 0001610717-23-000281 · form4.xml · derivative · entry 1

Ho Maykin · CIK 0001646395 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,802

Underlying: Common Stock · 27,802 shares

Expires 2033-09-13

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest and become exercisable on the date of the 2024 Annual Meeting, subject to the Reporting Person continuing in service on the Board through such vesting date.