ITOS

iTeos Therapeutics
ITOS

Overview Fund Activity
Delisted

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

Back to rankings

118 hedge funds and large institutions have $1.55B invested in iTeos Therapeutics in 2021 Q4 according to their latest regulatory filings, with 46 funds opening new positions, 37 increasing their positions, 24 reducing their positions, and 4 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
118
Holders Change
+41
Holders Change %
+53.25%
% of All Funds
1.82%
Holding in Top 10
7
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+75%
% of All Funds
0.11%
New
46
Increased
37
Reduced
24
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
OCA
1
Octagon Capital Advisors
New York
$21M
2
Vanguard Group
2
Vanguard Group
Pennsylvania
$49.4M
3
State Street
3
State Street
Massachusetts
$35.5M
4
CS
4
Candriam SCA
Luxembourg
$35.3M
5
Millennium Management
5
Millennium Management
New York
$10.6M

Top Sellers

1
AG
1
Artal Group
Luxembourg
$25.3M
2
MAM
2
MPM Asset Management
Massachusetts
$134M
3
MB
3
MPM BioImpact
Massachusetts
$85.9M
4
Citigroup
4
Citigroup
New York
$9.71M
5
SAM
5
Sectoral Asset Management
Quebec, Canada
$3.73M
Name Holding Trade Value Shares
Change 		Shares
Change %
RCM
1
RA Capital Management
Massachusetts
$206M – – –
BC
2
Boxer Capital
California
$202M – – –
MAM
3
MPM Asset Management
Massachusetts
$134M -$18.9M -405,241 -12%
RI
4
RTW Investments
New York
$110M – – –
MB
5
MPM BioImpact
Massachusetts
$85.9M -$12.2M -262,365 -12%
BlackRock
6
BlackRock
New York
$75.1M +$2.56M +54,992 +4%
AllianceBernstein
7
AllianceBernstein
Tennessee
$60.8M -$1.39M -29,868 -2%
EC
8
EcoR1 Capital
California
$60.7M – – –
RCMNY
9
Rubric Capital Management (New York)
New York
$54.6M +$8.55M +183,637 +19%
Vanguard Group
10
Vanguard Group
Pennsylvania
$49.4M +$20.6M +441,779 +71%
Citadel Advisors
11
Citadel Advisors
Florida
$46.5M +$1.1M +23,523 +2%
TCM
12
Tang Capital Management
California
$43.7M +$1.75M +37,500 +4%
Fidelity Investments
13
Fidelity Investments
Massachusetts
$37M -$447K -9,600 -1%
State Street
14
State Street
Massachusetts
$35.5M +$20.5M +441,244 +137%
CS
15
Candriam SCA
Luxembourg
$35.3M +$10.8M +232,083 +44%
AG
16
Artal Group
Luxembourg
$25.3M -$21M -450,000 -45%
OCA
17
Octagon Capital Advisors
New York
$21M +$21M +450,776 New
Geode Capital Management
18
Geode Capital Management
Massachusetts
$17.4M +$1.23M +26,425 +8%
Millennium Management
19
Millennium Management
New York
$10.6M +$10.6M +227,436 New
Axa
20
Axa
France
$10.2M +$122K +2,614 +1%
Marshall Wace
21
Marshall Wace
United Kingdom
$10.1M +$7.46M +160,265 +283%
Citigroup
22
Citigroup
New York
$9.71M -$9.54M -204,972 -50%
Two Sigma Investments
23
Two Sigma Investments
New York
$9.66M +$1.84M +39,613 +24%
Northern Trust
24
Northern Trust
Illinois
$8.64M +$428K +9,188 +5%
Two Sigma Advisers
25
Two Sigma Advisers
New York
$8.38M +$2.91M +62,400 +53%
1
2 3 4 5