EcoR1 Capital, LLC - 10 Dec 2025 SCHEDULE 13G Report for iBio, Inc. Common Stock (IBIO)

Filing Manager
EcoR1 Capital, LLC
Reporting Manager
EcoR1 Capital, LLC
Security
iBio, Inc. Common Stock
Symbol
IBIO
Shares outstanding
22,505,051 shares
Disclosed Ownership
2,228,000 shares
Ownership
9.9%
Form type
SCHEDULE 13G
Filing time
17 Dec 2025, 17:42:35 UTC
Date of event
10 Dec 2025
SEC
View on sec.gov

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Quoteable Key Fact

"EcoR1 Capital, LLC disclosed 9.9% ownership in iBio, Inc. Common Stock (IBIO) on 10 Dec 2025."

Quick Takeaways

  • EcoR1 Capital, LLC filed SCHEDULE 13G for iBio, Inc. Common Stock (IBIO).
  • Disclosed ownership: 9.9%.
  • Date of event: 10 Dec 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 17 Dec 2025, 17:42.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
EcoR1 Capital, LLC 9.9% 2,228,000 0 2,228,000 /s/ Oleg Nodelman Manager
Oleg Nodelman 9.9% 2,228,000 0 2,228,000 /s/ Oleg Nodelman Reporting person
EcoR1 Capital Fund Qualified, L.P. 9.3% 2,091,422 0 2,091,422 /s/ Oleg Nodelman Manager of the General Partner, EcoR1 Capital, LLC

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