SCHEDULE 13G

IBIO INC

Common Stock · CUSIP: 451033708

Event date: 2025-12-10

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• EcoR1 Capital, LLC

  Shares: 2,228,000.00 · Class: 9.9%

• Oleg Nodelman

  Shares: 2,228,000.00 · Class: 9.9%

• EcoR1 Capital Fund Qualified, L.P.

  Shares: 2,091,422.00 · Class: 9.3%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.