Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Voting Common Stock^F1,F2,F3,F4	Jun 11, 2026	C	6,556,740	—	A	6,556,740	I	See footnotes
Voting Common Stock^F1,F2,F3,F5	Jun 11, 2026	C	1,187,881	—	A	1,187,881	I	See footnotes
Voting Common Stock^F3,F4	Jun 11, 2026	P	19,728,353	$20.00	A	26,285,093	I	See footnotes
Voting Common Stock^F3,F5	Jun 11, 2026	P	1,460,397	$20.00	A	2,648,278	I	See footnotes

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	D/I
Series E Preferred Stock^F1,F3,F4	—	Jun 11, 2026	C	642,250	D	—	—	Voting Common Stock	419,006	I
Series E Preferred Stock^F1,F3,F5	—	Jun 11, 2026	C	160,562	D	—	—	Voting Common Stock	104,751	I
Series F Preferred Stock^F2,F3,F4	—	Jun 11, 2026	C	9,445,363	D	—	—	Voting Common Stock	6,137,734	I
Series F Preferred Stock^F2,F3,F5	—	Jun 11, 2026	C	1,666,829	D	—	—	Voting Common Stock	1,083,130	I

Explanation of responses

F1Each share of Series E Preferred Stock automatically converted into Voting Common Stock on a 1 to 0.6524 basis immediately prior to the closing of the IPO and without payment of consideration. The Series E Preferred Stock has no expiration date.
F2Each share of Series F Preferred Stock automatically converted into shares of Voting Common Stock on a 1 to 0.6498 basis immediately prior to the closing of the IPO and without payment of consideration. The Series F Preferred Stock has no expiration date.
F3RA Capital Management, L.P. (the "Adviser") is the investment manager for RA Capital Healthcare Fund, L.P. (the "Fund") and RA Capital Nexus Fund III, L.P. (the "Nexus Fund III"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. Each of the Adviser, the Adviser GP, the Fund, the Nexus Fund III, Dr. Kolchinsky and Mr. Shah disclaims beneficial ownership of any of the reported securities, except to the extent of its or his respective pecuniary interest therein.
F4Held directly by the Fund.
F5Held directly by Nexus Fund III.

Dr. Jake Simson, a Partner of the Adviser, serves on the Issuer's board of directors.