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Who owns iBio (IBIO) stock

56 funds reported iBio (IBIO) shares in their latest 13F filings, worth $62.1M in all. The largest holder is Affinity Asset Advisors, LLC ($7.0M). Last quarter 35 funds added to their stakes and 21 cut them.

Largest holders of IBIO (13F)Largest holders of IBIO (13F)Affinity Asset Advisors, LLC$7.0MCormorant Asset Management, LP$6.2MSilverarc Capital Management, LLC$6.2MVestal Point Capital, LP$4.5MVanguard Capital Management LLC$3.7MFrazier Life Sciences Management,…$3.4MEnsign Peak Advisors$3.2MWoodline Partners LP$3.1MMillennium Management LLC$2.9MCitadel Advisors LLC$2.4M

Largest holders (13F)

FundSharesValueChangeQuarter
Affinity Asset Advisors, LLC4,007,881$7.0Mincrease2026-06-30
Cormorant Asset Management, LP3,570,000$6.2Mnew2026-06-30
Silverarc Capital Management, LLC3,520,490$6.2Mincrease2026-06-30
Vestal Point Capital, LP2,600,000$4.5Mnew2026-06-30
Vanguard Capital Management LLC2,098,151$3.7Mincrease2026-06-30
Frazier Life Sciences Management, L.P.1,953,467$3.4Munchanged2026-06-30
Ensign Peak Advisors1,832,457$3.2Mnew2026-06-30
Woodline Partners LP1,776,547$3.1Mnew2026-06-30
Millennium Management LLC1,651,473$2.9Mincrease2026-06-30
Citadel Advisors LLC1,384,029$2.4Mincrease2026-06-30
Balyasny Asset Management L.P.1,170,893$2.0Mincrease2026-06-30
Bank of America1,121,492$2.0Mincrease2026-06-30
Vanguard Group883,149$1.7Mincrease2025-12-31
Ikarian Capital, LLC957,062$1.7Munchanged2026-06-30
Sio Capital Management, LLC904,268$1.6Munchanged2026-06-30

iBio's latest quarter

iBio, Q1 FY26: revenue $100K, net loss $5.7M, operating cash flow −$5.7M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most IBIO stock?

By the latest 13F filings: Affinity Asset Advisors, LLC ($7.0M); Cormorant Asset Management, LP ($6.2M); Silverarc Capital Management, LLC ($6.2M); Vestal Point Capital, LP ($4.5M); Vanguard Capital Management LLC ($3.7M).

What is the short interest in IBIO?

3,732,883 shares were sold short at the 2026-10-15 settlement, -11.17% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.