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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.

New
Increased
Maintained
Reduced
Closed

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%)

Holders
52
Holders Change
+2
Holders Change %
+4%
% of All Funds
0.64%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
16
Increased
16
Reduced
8
Closed
12
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
+$3.6M
2
AAA
Affinity Asset Advisors
New York
+$2.44M
3
Citadel Advisors
Citadel Advisors
Florida
+$2.22M
4
Marshall Wace
Marshall Wace
United Kingdom
+$1.16M
5
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$958K

Top Sellers

Rank Fund Capital Flow
1
LGM
Logos Global Management
California
-$1.62M
2
EC
EcoR1 Capital
California
-$1.5M
3
Ameriprise
Ameriprise
Minnesota
-$1.13M
4
Renaissance Technologies
Renaissance Technologies
New York
-$682K
5
MIM
Monashee Investment Management
Massachusetts
-$530K
Name Holding Trade Value Shares
Change 		Change in
Stake
AAA
1
Affinity Asset Advisors
New York
$5.9M +$2.44M +1,050,000 +51%
FLSM
2
Frazier Life Sciences Management
California
$3.71M – – –
EC
3
EcoR1 Capital
California
$3.01M -$1.5M -645,000 -29%
Millennium Management
4
Millennium Management
New York
$2.94M +$3.6M +1,549,850 New
LGM
5
Logos Global Management
California
$2.47M -$1.62M -700,000 -35%
VCM
6
Vanguard Capital Management
Pennsylvania
$2.07M +$2.53M +1,088,299 New
Balyasny Asset Management
7
Balyasny Asset Management
Illinois
$1.92M -$198K -85,224 -8%
IC
8
Ikarian Capital
Texas
$1.82M – – –
Citadel Advisors
9
Citadel Advisors
Florida
$1.82M +$2.22M +956,429 New
SCM
10
Sio Capital Management
New York
$1.72M +$381K +164,268 +22%
Marshall Wace
11
Marshall Wace
United Kingdom
$1.18M +$1.16M +499,316 +412%
ACM
12
ADAR1 Capital Management
Texas
$893K +$149K +64,347 +16%
Susquehanna International Group
13
Susquehanna International Group
Pennsylvania
$784K +$958K +412,725 New
Two Sigma Investments
14
Two Sigma Investments
New York
$777K -$110K -47,475 -10%
Walleye Capital
15
Walleye Capital
New York
$738K +$441K +190,179 +96%
Geode Capital Management
16
Geode Capital Management
Massachusetts
$737K +$383K +164,957 +74%
NCM
17
Noesis Capital Mangement
Florida
$592K +$203K +87,300 +39%
Bank of America
18
Bank of America
North Carolina
$552K +$405K +174,620 +151%
BFM
19
Boothbay Fund Management
New York
$483K – – –
SCM
20
Silverarc Capital Management
Massachusetts
$429K +$278K +120,000 +113%
VFT
21
Vanguard Fiduciary Trust
Pennsylvania
$390K +$476K +205,015 New
Goldman Sachs
22
Goldman Sachs
New York
$380K +$465K +200,212 New
DCM
23
DAFNA Capital Management
California
$368K +$449K +193,638 New
State Street
24
State Street
Massachusetts
$268K +$158K +68,300 +94%
BlackRock
25
BlackRock
New York
$249K +$205K +88,488 +207%
1
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IBIO Hedge Fund Activity: Q1 2026 in Review

52 of the 8,128 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.