Flynn James E bought PBLS

Footnotes

Each share of Series A Preferred Stock automatically converted into approximately 0.7406 shares of the Issuer's voting common stock upon the closing of the Issuer's initial public offering (on an adjusted basis after giving effect to the 1-for-1.5389 reverse split of the Issuer's common stock effected by the Issuer on June 3, 2026).; This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt III, L.P. is the general partner of Deerfield Private Design Fund III, L.P. ("Fund III"). Deerfield Mgmt HIF, L.P. is the general partner of Deerfield Healthcare Innovations Fund, L.P. ("Deerfield Innovations" and together with Fund III, the "Funds"). Deerfield Management Company, L.P. is the investment manager of the Funds.; In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by each Fund is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.