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IO Biotech
IOBT

Overview Fund Activity

21 hedge funds and large institutions have $20.8M invested in IO Biotech in 2025 Q1 according to their latest regulatory filings, with 1 funds opening new positions, 3 increasing their positions, 8 reducing their positions, and 6 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
21
Holders Change
-5
Holders Change %
-19.23%
% of All Funds
0.29%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.01%
New
1
Increased
3
Reduced
8
Closed
6
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Jane Street
Jane Street
New York
+$25.9K
2
XT
XTX Topco
Cayman Islands
+$24.5K
3
SAM
Sectoral Asset Management
Quebec, Canada
+$21.8K
4
Renaissance Technologies
Renaissance Technologies
New York
+$8.28K

Top Sellers

1
Citadel Advisors
Citadel Advisors
Florida
-$245K
2
BCM
Bridgeway Capital Management
Texas
-$108K
3
Morgan Stanley
Morgan Stanley
New York
-$76K
4
DIG
Dauntless Investment Group
New Hampshire
-$72.2K
5
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
-$55K
Name Holding Trade Value Shares
Change 		Shares
Change %
VC
1
Vivo Capital
California
$6.73M – – –
NHAS
2
Novo Holdings A/S
Denmark
$3.66M – – –
PHS
3
PFM Health Sciences
California
$2.55M – – –
Marshall Wace
4
Marshall Wace
United Kingdom
$2.29M – – –
Bank of America
5
Bank of America
North Carolina
$1.8M – – –
PBPIA
6
Pivotal bioVenture Partners Investment Advisor
California
$942K – – –
Morgan Stanley
7
Morgan Stanley
New York
$861K -$76K -69,714 -8%
DIG
8
Dauntless Investment Group
New Hampshire
$743K -$72.2K -66,200 -9%
LCM
9
Landscape Capital Management
New Jersey
$436K -$45.7K -41,962 -9%
SCM
10
Soleus Capital Management
Connecticut
$210K – – –
Renaissance Technologies
11
Renaissance Technologies
New York
$138K +$8.28K +7,600 +6%
SAM
12
Sectoral Asset Management
Quebec, Canada
$104K +$21.8K +20,000 +27%
BCM
13
Bridgeway Capital Management
Texas
$81.8K -$108K -99,000 -57%
XT
14
XTX Topco
Cayman Islands
$55K +$24.5K +22,446 +80%
Citadel Advisors
15
Citadel Advisors
Florida
$49.7K -$245K -224,949 -83%
Geode Capital Management
16
Geode Capital Management
Massachusetts
$36.3K – – –
Acadian Asset Management
17
Acadian Asset Management
Massachusetts
$33K -$31.9K -29,792 -49%
Jane Street
18
Jane Street
New York
$25.9K +$25.9K +23,717 New
Vontobel Holding
19
Vontobel Holding
Switzerland
$21.8K -$13.8K -12,638 -39%
UBS Group
20
UBS Group
Switzerland
$13.5K -$37.8K -34,675 -74%
SS
21
SBI Securities
Japan
$142 – – –
Royal Bank of Canada
22
Royal Bank of Canada
Ontario, Canada
– -$55K -60,000 Closed
Wealth Enhancement Advisory Services
23
Wealth Enhancement Advisory Services
Minnesota
– -$18.4K -20,000 Closed
PAS
24
PKS Advisory Services
New York
– -$14.7K -16,000 Closed
HF
25
HRT Financial
New York
– -$11K -12,689 Closed
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