iBio, Inc. (IBIO)
Nasdaq: IBIO · Pharmaceutical Preparations · New York, NY · filing with the SEC since 2008
Who owns iBio, Inc.
As filed with the SECHolders of 5% or more
11
Cormorant Asset Management, LP holds 9.99% of Common Stock, $0.001 par value per share, as its SCHEDULE 13G/A filed Aug 14, 2026 says.
Directors and officers
11
report now, of 27 people on the record since 2008. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 11 named at left.
Holders of 5% or moreshare of the class, as filed
Cormorant Asset Management, LP
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock, $0.001 par value per share · 9.99% in May 15, 2026
Affinity Asset Advisors, LLC
SCHEDULE 13G/A · filed Aug 13, 2026 · Common Stock, par value $0.001 per share · 9.99% in May 14, 2026
SilverArc Capital Management, LLC
SCHEDULE 13G · filed Nov 14, 2025 · Class A Common Stock
Adage Capital Management, L.P.
SCHEDULE 13G · filed Nov 13, 2025 · Common Stock, par value $0.001 per share
Sirenia Capital Management LP
SCHEDULE 13G · filed May 15, 2026 · Common Stock, par value $0.001 per share
Coastlands Capital LP
SCHEDULE 13G · filed Oct 14, 2026 · Common Stock, par value $0.001 per share
Vestal Point Capital, LP
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock, par value $0.001 per share · 9.9% in Nov 14, 2025
Opaleye Management, Inc.
SCHEDULE 13G/A · filed Feb 14, 2025 · Common Stock, par value $0.001 per share
Frazier Life Sciences Public Fund, L.P.
SCHEDULE 13G/A · filed May 12, 2026 · Common Stock, $0.001 par value per share · 8.7% in Dec 16, 2025
Lynx1 Capital Management LP
SCHEDULE 13G · filed Aug 14, 2026 · Common Stock, $0.001 par value per share · 0% in Feb 17, 2026
Integrated Core Strategies (US) LLC
SCHEDULE 13G · filed Jan 22, 2026 · Common Stock, par value $0.001 per share
Ikarian Capital, LLC
SCHEDULE 13G/A · filed Nov 14, 2025 · Common Stock · reported falling below 5%
EcoR1 Capital, LLC
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock · reported falling below 5%, from 9.9% in Dec 17, 2025
ADAR1 Capital Management, LLC
SCHEDULE 13G/A · filed Feb 17, 2026 · Common Stock, par value $0.001 per share · reported falling below 5%, from 9.9% in Aug 14, 2025
Patrick J. Crutcher
SCHEDULE 13G/A · filed Jul 30, 2025 · Common Stock · reported falling below 5%, from 7% in Jan 30, 2025
Sabby Management, LLC
SCHEDULE 13G/A · filed Jan 3, 2025 · Common Stock · reported falling below 5%
Logos Global Management LP
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock · reported falling below 5%, from 4.6% in Feb 17, 2026
Point72 Asset Management, L.P.
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock, par value $0.001 per share · reported falling below 5%, from 9.9% in Aug 25, 2025
What IBIO reports owning in othersstakes of 5% or more, and other ties
1 subsidiary in 1 country, from the list filed with the 10-K filed Sep 20, 2024.
Insider tradesForm 4
0sales
4purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$100,000bought, in dollars
Open-market trades on Form 4 from Oct 15, 2025 to Oct 15, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 15, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window3 of 30 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Banjak Marc | Chief Legal Officer | 0 | $0 | 0 | 2 | $0 |
| Brenner Martin | Chief Executive Officer and Chief Scientific Officer | 0 | $0 | 0 | 1 | $0 |
| Duran Felipe | Chief Financial Officer | 0 | $0 | 0 | 1 | $100,000 |