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Werewolf Therapeutics
HOWL

48 hedge funds and large institutions have $11.7M invested in Werewolf Therapeutics in 2026 Q1 according to their latest regulatory filings, with 10 funds opening new positions, 9 increasing their positions, 12 reducing their positions, and 12 closing their positions.

New
Increased
Maintained
Reduced
Closed

25% more capital invested

Capital invested by funds: $9.34M → $11.7M (+$2.32M)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

1.51% less ownership

Funds ownership: 30.36% → 28.84% (-1.5%)

6% less funds holding

Funds holding: 51 → 48 (-3)

17% less first-time investments, than exits

New positions opened: 10 | Existing positions closed: 12

25% less repeat investments, than reductions

Existing positions increased: 9 | Existing positions reduced: 12

Holders
48
Holders Change
-3
Holders Change %
-5.88%
% of All Funds
0.59%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
10
Increased
9
Reduced
12
Closed
12
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
SCM
Squadron Capital Management
Illinois
+$386K
2
Geode Capital Management
Geode Capital Management
Massachusetts
+$36.7K
3
XT
XTX Topco
Cayman Islands
+$34.9K
4
VA
Verdad Advisers
Massachusetts
+$20.4K
5
Raymond James Financial
Raymond James Financial
Florida
+$13.5K

Top Sellers

Rank Fund Capital Flow
1
Bank of America
Bank of America
North Carolina
-$324K
2
MB
MPM BioImpact
Massachusetts
-$127K
3
Renaissance Technologies
Renaissance Technologies
New York
-$111K
4
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$102K
5
Millennium Management
Millennium Management
New York
-$74K
Name Holding Trade Value Shares
Change 		Change in
Stake
HF
26
HRT Financial
New York
$14K +$12.2K +17,861 New
C
27
Certuity
Florida
$12.5K – – –
DIM
28
Delta Investment Management
California
$12.4K – – –
Barclays
29
Barclays
United Kingdom
$11K -$1 -1 -0%
LFG
30
Larson Financial Group
Missouri
$10.9K – – –
RCA
31
Ranch Capital Advisors
Florida
$9.99K – – –
HSA
32
HBK Sorce Advisory
Pennsylvania
$8.99K – – –
Citadel Advisors
33
Citadel Advisors
Florida
$8.64K +$7.11K +10,382 New
VGA
34
Vanguard Global Advisers
Pennsylvania
$8.62K +$7.08K +10,343 New
Cetera Investment Advisers
35
Cetera Investment Advisers
Illinois
$8.49K – – –
LPL Financial
36
LPL Financial
California
$8.33K +$6.85K +10,000 New
Osaic Holdings
37
Osaic Holdings
Arizona
$7.16K – – –
FP
38
Financial Perspectives
Minnesota
$5.62K – – –
TFM
39
TFC Financial Management
Massachusetts
$3.75K – – –
Citigroup
40
Citigroup
New York
$2.82K +$2.32K +3,383 +338,300%
JP Morgan Chase
41
JP Morgan Chase
New York
$1.67K +$16 +24 +1%
Group One Trading
42
Group One Trading
Illinois
$1.56K – – –
BNP Paribas Financial Markets
43
BNP Paribas Financial Markets
France
$658 -$1 -2 -0.3%
Northwestern Mutual Wealth Management
44
Northwestern Mutual Wealth Management
Wisconsin
$167 +$134 +196 +4,900%
SS
45
SBI Securities
Japan
$67 +$27 +40 +100%
Fidelity Investments
46
Fidelity Investments
Massachusetts
$32 -$2.46K -3,592 -99%
AAP
47
Arax Advisory Partners
Colorado
$32 -$18 -27 -69%
Optiver Holding
48
Optiver Holding
Netherlands
$18 – – –
Susquehanna International Group
49
Susquehanna International Group
Pennsylvania
– -$63.2K -99,829 Closed
Vontobel Holding
50
Vontobel Holding
Switzerland
– -$38K -60,003 Closed
1
2
3

HOWL Hedge Fund Activity: Q1 2026 in Review

48 of the 8,127 institutional investors tracked by Wall St. Rank reported a position in Werewolf Therapeutics (HOWL) for Q1 2026, worth a combined $11.7M — up 25% from $9.34M a quarter earlier.

Sellers outnumbered buyers: 12 funds closed out of HOWL and 10 opened new positions — a net loss of 2 holders — while 12 trimmed existing stakes and 9 added.

The largest buyer was Squadron Capital Management, opening a new position worth an estimated $386K. The largest seller was Bank of America, cutting an estimated $324K.

  • 48 institutional investors held Werewolf Therapeutics (HOWL) as of Q1 2026, down from 51 in Q4 2025.
  • Funds reported $11.7M of Werewolf Therapeutics stock for Q1 2026, up 25% quarter-over-quarter.
  • 10 funds opened new Werewolf Therapeutics positions in Q1 2026 and 12 closed out, a net change of -2 holders.
  • The largest Werewolf Therapeutics buyer in Q1 2026 was Squadron Capital Management, an estimated $386K added.
  • The largest Werewolf Therapeutics seller in Q1 2026 was Bank of America, an estimated $324K sold.

Based on aggregated 13F filings for Q1 2026.