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ITOS

iTeos Therapeutics
ITOS

Delisted

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

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81 hedge funds and large institutions have $1.03B invested in iTeos Therapeutics in 2021 Q1 according to their latest regulatory filings, with 19 funds opening new positions, 35 increasing their positions, 13 reducing their positions, and 9 closing their positions.

New
Increased
Maintained
Reduced
Closed

169% more repeat investments, than reductions

Existing positions increased: 35 | Existing positions reduced: 13

111% more first-time investments, than exits

New positions opened: 19 | Existing positions closed: 9

14% more funds holding

Funds holding: 71 → 81 (+10)

13% more capital invested

Capital invested by funds: $907M → $1.03B (+$121M)

8.97% more ownership

Funds ownership: 76.75% → 85.72% (+9%)

0% more funds holding in top 10

Funds holding in top 10: 4 → 4 (0)

Holders
81
Holders Change
+10
Holders Change %
+14.08%
% of All Funds
1.42%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
19
Increased
35
Reduced
13
Closed
9
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
RI
RTW Investments
New York
+$61M
2
Adage Capital Partners
Adage Capital Partners
Massachusetts
+$33.6M
3
CAC
Cowen and Company
New York
+$21.3M
4
State Street
State Street
Massachusetts
+$18.6M
5
BlackRock
BlackRock
New York
+$16.9M

Top Sellers

Rank Fund Capital Flow
1
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$29.4M
2
ACA
Avoro Capital Advisors
New York
-$15.6M
3
Citadel Advisors
Citadel Advisors
Florida
-$10.3M
4
RSCM
Rock Springs Capital Management
Maryland
-$5.41M
5
LGM
Logos Global Management
California
-$3.38M
Name Holding Trade Value Shares
Change 		Change in
Stake
Daiwa Securities Group
76
Daiwa Securities Group
Japan
$2K – – –
CS
77
Candriam SCA
Luxembourg
$1K +$650 +18 New
AIG
78
American International Group
New York
$393 +$180K +4,990 +77%
ACA
79
Avoro Capital Advisors
New York
– -$15.6M -460,000 Closed
RSCM
80
Rock Springs Capital Management
Maryland
– -$5.41M -159,957 Closed
LGM
81
Logos Global Management
California
– -$3.38M -100,000 Closed
APM
82
Avidity Partners Management
Texas
– -$3.13M -92,574 Closed
Franklin Resources
83
Franklin Resources
California
– -$2.88M -85,000 Closed
MS
84
Maven Securities
Jersey
– -$844K -24,924 Closed
SFI
85
Susquehanna Fundamental Investments
Pennsylvania
– -$336K -9,935 Closed
OQS
86
Occudo Quantitative Strategies
Florida
– -$241K -7,139 Closed
PCM
87
Prelude Capital Management
New York
– -$219K -6,478 Closed
PA
88
Parallel Advisors
California
– +$181 +5 New
PNC Financial Services Group
89
PNC Financial Services Group
Pennsylvania
– +$181 +5 New
SOW
90
State of Wyoming
Wyoming
– +$217 +6 New
1 2 3
4

ITOS Hedge Fund Activity: Q1 2021 in Review

81 of the 5,695 institutional investors tracked by Wall St. Rank reported a position in iTeos Therapeutics (ITOS) for Q1 2021, worth a combined $1.03B — up 13% from $907M a quarter earlier.

Buyers outnumbered sellers: 19 funds opened new ITOS positions and 9 closed out — a net gain of 10 holders — while 35 added to existing stakes and 13 trimmed.

The largest buyer was RTW Investments, adding an estimated $61M. The largest seller was Janus Henderson Group, cutting an estimated $29.4M.

  • 81 institutional investors held iTeos Therapeutics (ITOS) as of Q1 2021, up from 71 in Q4 2020.
  • Funds reported $1.03B of iTeos Therapeutics stock for Q1 2021, up 13% quarter-over-quarter.
  • 19 funds opened new iTeos Therapeutics positions in Q1 2021 and 9 closed out, a net change of +10 holders.
  • The largest iTeos Therapeutics buyer in Q1 2021 was RTW Investments, an estimated $61M added.
  • The largest iTeos Therapeutics seller in Q1 2021 was Janus Henderson Group, an estimated $29.4M sold.

Based on aggregated 13F filings for Q1 2021.