iBio
IBIO
52 hedge funds and large institutions have $36.9M invested in iBio in 2026 Q1 according to their latest regulatory filings, with 16 funds opening new positions, 16 increasing their positions, 8 reducing their positions, and 12 closing their positions.
100% more repeat investments, than reductions
Existing positions increased: 16 | Existing positions reduced: 8
33% more first-time investments, than exits
New positions opened: 16 | Existing positions closed: 12
17% more capital invested
Capital invested by funds: $31.6M → $36.9M (+$5.36M)
4% more funds holding
Funds holding: 50 → 52 (+2)
16.42% less ownership
Funds ownership: 72.66% → 56.24% (-16%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$3.6M |
| 2 |
AAA
Affinity Asset Advisors
New York
|
+$2.44M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$2.22M |
| 4 |
Marshall Wace
London,
United Kingdom
|
+$1.16M |
| 5 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$958K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LGM
Logos Global Management
San Francisco,
California
|
-$1.62M |
| 2 |
EC
EcoR1 Capital
San Francisco,
California
|
-$1.5M |
| 3 |
Ameriprise
Minneapolis,
Minnesota
|
-$1.13M |
| 4 |
Renaissance Technologies
New York
|
-$682K |
| 5 |
MIM
Monashee Investment Management
Boston,
Massachusetts
|
-$530K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
SPIA
51
Steward Partners Investment Advisory
New York
| $2 | – | – | – |
|
52
Wells Fargo
San Francisco,
California
| $2 | – | – | – |
|
|
53
Ameriprise
Minneapolis,
Minnesota
| – | -$1.13M | -584,368 | Closed |
|
|
54
Renaissance Technologies
New York
| – | -$682K | -353,339 | Closed |
|
|
MIM
55
Monashee Investment Management
Boston,
Massachusetts
| – | -$530K | -274,862 | Closed |
|
56
Hudson Bay Capital Management
Stamford,
Connecticut
| – | -$467K | -242,076 | Closed |
|
|
JFG
57
Jefferies Financial Group
New York
| – | -$309K | -160,000 | Closed |
|
58
Two Sigma Advisers
New York
| – | -$209K | -108,400 | Closed |
|
59
Jane Street
New York
| – | -$204K | -105,700 | Closed |
|
|
MCIA
60
Mountain Capital Investment Advisors
Westminster,
Colorado
| – | -$142K | -63,000 | Closed |
|
|
PAP
61
Persistent Asset Partners
Hong Kong
| – | -$76.4K | -39,585 | Closed |
|
|
TRCT
62
Tower Research Capital (TRC)
New York
| – | -$2.66K | -1,380 | Closed |
|
|
AAP
63
Arax Advisory Partners
Denver,
Colorado
| – | -$112 | -91 | Closed |
|
64
Barclays
London,
United Kingdom
| – | -$4 | -2 | Closed |
|
IBIO Hedge Fund Activity: Q1 2026 in Review
52 of the 8,130 institutional investors tracked by Wall St. Rank reported a position in iBio (IBIO) for Q1 2026, worth a combined $36.9M — up 17% from $31.6M a quarter earlier.
Buyers outnumbered sellers: 16 funds opened new IBIO positions and 12 closed out — a net gain of 4 holders — while 16 added to existing stakes and 8 trimmed.
The largest buyer was Millennium Management, opening a new position worth an estimated $3.6M. The largest seller was Logos Global Management, cutting an estimated $1.62M.
- 52 institutional investors held iBio (IBIO) as of Q1 2026, up from 50 in Q4 2025.
- Funds reported $36.9M of iBio stock for Q1 2026, up 17% quarter-over-quarter.
- 16 funds opened new iBio positions in Q1 2026 and 12 closed out, a net change of +4 holders.
- The largest iBio buyer in Q1 2026 was Millennium Management, an estimated $3.6M added.
- The largest iBio seller in Q1 2026 was Logos Global Management, an estimated $1.62M sold.
Based on aggregated 13F filings for Q1 2026.