ITOS

iTeos Therapeutics
ITOS

Overview Fund Activity
Delisted

ITOS was delisted on the 28th of August, 2025.

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83 hedge funds and large institutions have $754M invested in iTeos Therapeutics in 2021 Q2 according to their latest regulatory filings, with 22 funds opening new positions, 30 increasing their positions, 23 reducing their positions, and 20 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
83
Holders Change
+2
Holders Change %
+2.47%
% of All Funds
1.45%
Holding in Top 10
3
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-25%
% of All Funds
0.05%
New
22
Increased
30
Reduced
23
Closed
20
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
EC
1
EcoR1 Capital
California
$26.6M
2
CS
2
Candriam SCA
Luxembourg
$13M
3
Citadel Advisors
3
Citadel Advisors
Florida
$25.5M
4
Citigroup
4
Citigroup
New York
$11.1M
5
TCM
5
Tang Capital Management
California
$5.63M

Top Sellers

1
Adage Capital Partners
1
Adage Capital Partners
Massachusetts
$1.46M
2
RI
2
RTW Investments
New York
$44M
3
CAC
3
Cowen and Company
New York
$0
4
ABG
4
Ally Bridge Group
New York
$0
5
State Street
5
State Street
Massachusetts
$8.16M
Name Holding Trade Value Shares
Change 		Shares
Change %
RCM
1
RA Capital Management
Massachusetts
$113M +$26 +1 +0%
BC
2
Boxer Capital
California
$111M – – –
MAM
3
MPM Asset Management
Massachusetts
$94M -$1.05M -40,876 -1%
MB
4
MPM BioImpact
Massachusetts
$60M -$435K -16,976 -0.7%
RI
5
RTW Investments
New York
$44M -$26.8M -1,046,206 -38%
BlackRock
6
BlackRock
New York
$38.9M -$425K -16,584 -1%
AllianceBernstein
7
AllianceBernstein
Tennessee
$34.8M +$4.75M +185,077 +16%
Janus Henderson Group
8
Janus Henderson Group
United Kingdom
$27.1M -$2.99M -116,663 -10%
EC
9
EcoR1 Capital
California
$26.6M +$19.9M +775,864 +298%
Citadel Advisors
10
Citadel Advisors
Florida
$25.5M +$12.4M +483,398 +95%
AG
11
Artal Group
Luxembourg
$25.5M -$2.56M -100,000 -9%
Fidelity Investments
12
Fidelity Investments
Massachusetts
$20.8M -$239K -9,300 -1%
Vanguard Group
13
Vanguard Group
Pennsylvania
$13.2M -$4.59M -178,776 -26%
CS
14
Candriam SCA
Luxembourg
$13M +$13M +504,872 +2,804,844%
Citigroup
15
Citigroup
New York
$11.1M +$10.2M +397,181 +1,125%
State Street
16
State Street
Massachusetts
$8.16M -$9.87M -384,841 -55%
CAM
17
Cormorant Asset Management
Massachusetts
$7.4M -$299K -11,670 -4%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$7.28M +$220K +8,569 +3%
Wellington Management Group
19
Wellington Management Group
Massachusetts
$5.73M +$4.4M +171,700 +333%
TCM
20
Tang Capital Management
California
$5.63M +$5.63M +219,396 New
MWNA
21
Marshall Wace North America
New York
$5.42M +$5.42M +211,095 New
Axa
22
Axa
France
$5.35M +$2.17M +84,686 +68%
Northern Trust
23
Northern Trust
Illinois
$4.43M -$516K -20,106 -10%
BBA
24
Baker Bros. Advisors
New York
$3.86M – – –
Marshall Wace
25
Marshall Wace
United Kingdom
$3.67M +$3.67M +142,929 New
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