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Livermore
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iBio, Inc.

IBIO
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001420720

No open-market purchases or sales by iBio, Inc. insiders were filed in the last 90 days; 55 institutions reported holding it in 13F filings for Q2 2026, worth $60.8M in total; no superinvestor holds it.

Holders of 5% or more of IBIO

Holders whose latest Schedule 13D or 13G filing reports 5% or more of iBio, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of IBIO
HolderLatest formStakeChangeFirst filedLatest filingFiling
Cormorant Asset Management, LP13G/A9.99%5.12M shares0.00 ppfrom 9.99%Nov 14, 20253 filingsAug 14, 2026SEC
Affinity Asset Advisors, LLC13G/A9.99%5.07M shares0.00 ppfrom 9.99%Aug 26, 20255 filingsAug 13, 2026SEC
Silverarc Capital Management, LLC13G9.99%2.18M sharesNewNov 14, 20251 filingNov 14, 2025SEC
Adage Capital Management, L.P.13G9.99%2.18M sharesNewNov 13, 20251 filingNov 13, 2025SEC
Sirenia Capital Management LP13G9.90%11.6M sharesNewMay 15, 20261 filingMay 15, 2026SEC
Vestal Point Capital, LP13G/A7.90%4.03M shares−2.00 ppfrom 9.90%Nov 14, 20252 filingsAug 14, 2026SEC
Opaleye Management Inc.13G/A7.60%750.0K shares–Feb 14, 20251 filingFeb 14, 2025SEC
Frazier Life Sciences Public Fund, L.P.13G/A5.70%1.95M shares−3.00 ppfrom 8.70%Dec 16, 20252 filingsMay 12, 2026SEC
Lynx1 Capital Management LP13G5.40%2.81M shares+5.40 ppfrom 0.00%Feb 17, 20262 filingsAug 14, 2026SEC
Integrated Core Strategies (US) LLC13G5.20%1.24M sharesNewJan 22, 20261 filingJan 22, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

34 Schedule 13D and 13G filings on iBio, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on IBIO
Filed (ET)FilerFormStakeChangeEvent dateFiling
Aug 14, 20264:31 PM ETLynx1 Capital Management LPand 1 other13G5.40%2.81M shares+5.40 ppfrom 0.00%Jun 30, 2026SEC
Aug 14, 20264:05 PM ETVestal Point Capital, LPand 1 other13G/A7.90%4.03M shares−2.00 ppfrom 9.90%Jun 30, 2026SEC
Aug 14, 20262:03 PM ETCormorant Asset Management, LPand 1 other13G/A9.99%5.12M shares0.00 ppfrom 9.99%Jun 30, 2026SEC
Aug 13, 20264:05 PM ETAffinity Asset Advisors, LLCand 1 other13G/A9.99%5.07M shares0.00 ppfrom 9.99%Jun 30, 2026SEC
May 15, 20266:42 PM ETLogos Global Management LPand 4 others13G/A0.00%0 shares−4.60 ppfrom 4.60%Below 5%Mar 31, 2026SEC
May 15, 20264:19 PM ETPoint72 Asset Management, L.P.and 2 others13G/A0.00%0 shares−9.90 ppfrom 9.90%Below 5%Mar 31, 2026SEC
May 15, 20262:26 PM ETEcoR1 Capital, LLCand 2 others13G/A4.60%1.58M shares−5.30 ppfrom 9.90%Below 5%Mar 31, 2026SEC
May 15, 20261:22 PM ETCormorant Asset Management, LPand 1 other13G/A9.99%3.83M shares0.00 ppfrom 9.99%Mar 31, 2026SEC
May 15, 20268:16 AM ETSirenia Capital Management LPand 1 other13G9.90%11.6M sharesNewMar 31, 2026SEC
May 14, 20264:11 PM ETAffinity Asset Advisors, LLCand 1 other13G/A9.99%3.49M shares0.00 ppfrom 9.99%Mar 31, 2026SEC
May 12, 20264:31 PM ETFrazier Life Sciences Public Fund, L.P.and 8 others13G/A5.70%1.95M shares−3.00 ppfrom 8.70%Mar 31, 2026SEC
Feb 17, 20266:20 PM ETADAR1 Capital Management, LLCand 3 others13G/A4.40%1.35M shares−5.50 ppfrom 9.90%Below 5%Dec 31, 2025SEC
Feb 17, 20266:19 PM ETLogos Global Management LPand 4 others13G/A4.60%1.50M shares−4.30 ppfrom 8.90%Below 5%Dec 31, 2025SEC
Feb 17, 20261:46 PM ETLynx1 Capital Management LPand 1 other13G/A0.00%0 shares–Below 5%Dec 31, 2025SEC
Jan 29, 20269:29 PM ETAffinity Asset Advisors, LLCand 1 other13G/A9.99%2.40M shares0.00 ppfrom 9.99%Jan 22, 2026SEC
Jan 22, 20265:02 PM ETIntegrated Core Strategies (US) LLCand 3 others13G5.20%1.24M sharesNewJan 15, 2026SEC
Dec 19, 20254:45 PM ETLogos Global Management LPand 4 others13G8.90%2.00M sharesNewDec 12, 2025SEC
Dec 17, 20255:42 PM ETEcoR1 Capital, LLCand 2 others13G9.90%2.23M sharesNewDec 10, 2025SEC
Dec 16, 20254:39 PM ETFrazier Life Sciences Public Fund, L.P.and 2 others13G8.70%1.95M sharesNewDec 9, 2025SEC
Dec 3, 20253:19 PM ETAffinity Asset Advisors, LLCand 1 other13G/A9.99%2.18M shares0.00 ppfrom 9.99%Aug 19, 2025SEC
Nov 14, 20256:28 PM ETIkarian Capital, LLCand 1 other13G/A4.99%1.15M shares–Below 5%Sep 30, 2025SEC
Nov 14, 20254:05 PM ETVestal Point Capital, LPand 1 other13G9.90%4.28M sharesNewSep 30, 2025SEC
Nov 14, 20251:11 PM ETSilverarc Capital Management, LLCand 2 others13G9.99%2.18M sharesNewSep 30, 2025SEC
Nov 14, 20251:07 PM ETCormorant Asset Management, LPand 1 other13G9.99%2.25M sharesNewSep 30, 2025SEC
Nov 13, 20259:17 AM ETAdage Capital Management, L.P.and 2 others13G9.99%2.18M sharesNewSep 30, 2025SEC
Aug 26, 20254:47 PM ETAffinity Asset Advisors, LLCand 1 other13G9.99%4.28M sharesNewAug 19, 2025SEC
Aug 25, 20255:20 PM ETPoint72 Asset Management, L.P.and 2 others13G9.90%14.3M sharesNewAug 22, 2025SEC
Aug 14, 20259:13 PM ETADAR1 Capital Management, LLCand 2 others13G/A9.90%1.79M shares−0.09 ppfrom 9.99%Jun 30, 2025SEC
Jul 30, 20258:40 AM ETCrutcher Patrick J13G/A3.10%847.0K shares−3.90 ppfrom 7.00%Below 5%Jun 30, 2025SEC
Feb 14, 20259:10 PM ETADAR1 Capital Management, LLCand 2 others13G/A9.99%1.10M shares–Dec 31, 2024SEC
Feb 14, 20256:42 AM ETOpaleye Management Inc.13G/A7.60%750.0K shares–Dec 31, 2024SEC
Jan 30, 20256:38 PM ETCrutcher Patrick J13G/A7.00%696.7K shares−0.20 ppfrom 7.20%Jan 28, 2025SEC
Jan 29, 20257:33 PM ETCrutcher Patrick J13G7.20%714.7K sharesNewJan 28, 2025SEC
Jan 3, 20255:19 PM ETSabby Management, LLCand 2 others13G/A0.20%19.3K shares–Below 5%Dec 31, 2024SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell iBio, Inc. shares.

No Form 144 notices for iBio, Inc. are on file.