X0202 SCHEDULE 13G/A 0000935836-25-000726 0001792126 XXXXXXXX LIVE 2 Common Stock 03/31/2026 0001420720 iBio, Inc. 451033708 600 MADISON AVENUE, Suite 1601 NEW YORK NY 10022-1737 Rule 13d-1(b) Rule 13d-1(c) Logos Global Management LP b DE 0.00 0.00 0.00 0.00 0.00 N 0 IA PN Logos Global Management GP LLC b DE 0.00 0.00 0.00 0.00 0.00 N 0 HC OO Logos Global Master Fund LP b DE 0.00 0.00 0.00 0.00 0.00 N 0 PN Logos GP LLC b DE 0.00 0.00 0.00 0.00 0.00 N 0 HC OO Arsani William b X1 0.00 0.00 0.00 0.00 0.00 N 0 HC IN iBio, Inc. 11750 Sorrento Valley Road, Suite 200, San Diego, CA 92121 Logos Global Management LP ("Logos Global") Logos Global Management GP LLC ("Logos Global GP") Logos Global Master Fund LP ("Global Fund") Logos GP LLC ("Logos GP") Arsani William Logos Global is the investment adviser to investment funds, including Global Fund. Logos Global GP is the general partner of Logos Global. Logos GP is the general partner of Global Fund. Dr. William is a control person of Logos Global, Logos Global GP and Logos GP. The reporting persons are filing this statement jointly but not as members of a group, and they expressly disclaim membership in a group. Each reporting person disclaims beneficial ownership of Common Stock except to the extent of that person's pecuniary interest therein. In addition, the filing of this Schedule 13G on behalf of the Global Fund should not be construed as an admission that it is, and it disclaims that it is, a beneficial owner, as defined in Rule 13d-3 under the Act, of any Common Stock covered by this Schedule 13G. One Letterman Drive, Building C, Suite C3-350, San Francisco, California 94129 See Item 4 of the cover sheet for each reporting person. N IA HC Logos Global: 0 Logos Global GP: 0 Global Fund: 0 Logos GP: 0 Arsani William: 0 Logos Global: 0% Logos Global GP: 0% Global Fund: 0% Logos GP: 0% Arsani William: 0% Logos Global: 0 Logos Global GP: 0 Global Fund: 0 Logos GP: 0 Arsani William: 0 Logos Global: 0 Logos Global GP: 0 Global Fund: 0 Logos GP: 0 Arsani William: 0 Logos Global: 0 Logos Global GP: 0 Global Fund: 0 Logos GP: 0 Arsani William: 0 Logos Global: 0 Logos Global GP: 0 Global Fund: 0 Logos GP: 0 Arsani William: 0 N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. EXHIBIT 99.1-AGREEMENT REGARDING JOINT FILING OF STATEMENT ON SCHEDULE 13D OR 13G Logos Global Management LP /s/ Arsani William 05/15/2026 Logos Global Management GP LLC /s/ Arsani William 05/15/2026 Logos Global Master Fund LP /s/ Arsani William 05/15/2026 Logos GP LLC /s/ Arsani William 05/15/2026 Arsani William /s/ Arsani William 05/15/2026