Werewolf TherapeuticsHOWL

13F holders, Q4 2024 (December 31)
73holders +4
11new positions
8sold out
3famous investors
$1.48avg. 13F price*

At the end of Q4 2024, 73 institutions reported holding Werewolf Therapeutics Inc. (HOWL) in their 13F filings, up 4 from Q3 2024. 11 opened new positions and 8 sold out. The largest holders were Ra Capital Management, L.P. ($9.1M), MPM Asset Management LLC ($6.3M) and PFM Health Sciences, LP ($4.3M). 3 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).

Company
Werewolf Therapeutics Inc.
CUSIP
95075A107
Latest filing quarter
Q2 2026

History

Number of 13F holders

020406080 Q1 2024: 61Q1 2024Q2 2024: 71Q2 2024Q3 2024: 69Q3 2024Q4 2024: 73Q4 2024Q1 2025: 70Q1 2025Q2 2025: 65Q2 2025Q3 2025: 62Q3 2025Q4 2025: 51Q4 2025Q1 2026: 48Q1 2026Q2 2026: 45Q2 2026

Total Exit/New Position Q3 2024 → Q4 2024

InstitutionsTotal Value
New Positions11$230K
Exits8$6.0M

All 13F filers, Q3 2024 → Q4 2024: 559,504 shares bought and 4,587,491 shares sold, net −4,027,987 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 73 holders

Ra Capital Management, L.P. 0.12% No change 6,144,881 $9.1M
MPM Asset Management LLC 5.10% No change 4,284,172 $6.3M
PFM Health Sciences, LP 0.34% Reduce -14.5% 2,905,465 $4.3M
MPM Bioimpact LLC 0.50% No change 2,388,011 $3.5M
Bank of America Corp. 0.00% Reduce -3.5% 2,078,875 $3.1M
BlackRock, Inc. 0.00% Add +3.9% 1,700,432 $2.5M
Vanguard Group Inc. 0.00% Add +0.4% 1,420,969 $2.1M
Rubric Capital Management LP 0.04% No change 1,333,893 $2.0M
Geode Capital Management, LLC 0.00% Add +2.4% 702,558 $1.0M
Sphera Funds Management LTD. 0.17% No change 626,810 $928K
Millennium Management 0.00% Reduce -55.0% 596,289 $883K
DC Funds, LP 24.47% No change 589,102 $872K
State Street Corp. 0.00% Reduce -10.4% 426,772 $632K
Northern Trust Corp. 0.00% Add +7.3% 244,390 $362K
Acadian Asset Management LLC 0.00% Reduce -8.7% 242,264 $358K
BIT Capital GmbH 0.03% No change 241,056 $357K
Alyeska Investment Group, L.P. 0.00% No change 235,705 $349K
Dimensional Fund Advisors LP 0.00% Reduce -24.5% 194,746 $288K
Goldman Sachs Group Inc. 0.00% Add +23.2% 141,830 $210K
Two Sigma Advisers, LP 0.00% Reduce -45.7% 139,100 $206K
Morgan Stanley 0.00% Add +16.1% 138,142 $204K
Bridgeway Capital Management, LLC 0.00% Add +24.4% 109,586 $162K
Deutsche Bank AG 0.00% Add +450.7% 101,626 $150K
Walleye Capital LLC 0.00% Reduce -11.1% 96,850 $143K
Two Sigma Investments, LP 0.00% Reduce -48.3% 93,440 $138K
Nuveen Asset Management, LLC 0.00% No change 73,370 $109K
Charles Schwab Investment Management Inc. 0.00% Reduce -8.9% 71,860 $106K
Bank of New York Mellon Corp 0.00% Add +23.1% 71,300 $106K
JPMorgan Chase & Co. 0.00% Add +372.4% 62,928 $93K
Barclays PLC 0.00% Add +9.0% 59,748 $88K
Renaissance Technologies 0.00% Reduce -62.6% 56,900 $84K
Jane Street Group, LLC 0.00% Add +261.2% 54,713 $81K
Levin Capital Strategies, L.P. 0.01% New 50,000 $74K
Edgewood Management LLC 0.00% No change 50,000 $74K
American Century Companies Inc. 0.00% Add +2.6% 42,511 $63K
Susquehanna International Group, LLP 0.00% New 33,862 $50K
UBS Group AG 0.00% Add +97.0% 30,493 $45K
Rhumbline Advisers 0.00% Add +1.8% 28,916 $43K
Regal Investment Advisors LLC 0.00% Add +88.2% 27,204 $40K
XTX Topco Ltd 0.00% Add +17.4% 24,905 $37K
Citigroup Inc. 0.00% Add +3.1% 23,729 $35K
Sei Investments Co. 0.00% No change 21,322 $32K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Add +4.4% 17,871 $26K
D. E. Shaw & Co. 0.00% New 17,776 $26K
Wells Fargo & Company 0.00% Add +32.2% 16,981 $25K
HBK Sorce Advisory LLC 0.00% Add +12.3% 15,357 $23K
Corebridge Financial, Inc. 0.00% Reduce -7.0% 15,156 $22K
Certuity, LLC 0.00% No change 15,000 $22K
Intech Investment Management LLC 0.00% New 14,866 $22K
Invesco Ltd. 0.00% Add +7.0% 14,589 $22K
SG Americas Securities, LLC 0.00% Add +1.9% 13,779 $20K
Two Sigma Securities, LLC 0.00% New 12,740 $19K
Larson Financial Group LLC 0.00% New 10,000 $15K
Osaic Holdings, Inc. 0.00% New 8,575 $13K
BNP Paribas Financial Markets 0.00% New 6,832 $10K
Financial Perspectives, Inc 0.00% No change 6,750 $10K
Tower Research Capital LLC (TRC) 0.00% Add +11.4% 5,856 $9K
New York State Common Retirement Fund 0.00% No change 5,100 $8K
Ameritas Investment Partners, Inc. 0.00% No change 2,987 $4K
Royal Bank of Canada 0.00% Add +4.0% 3,376 $4K
Legal & General Group Plc 0.00% No change 2,642 $4K
TFC Financial Management, Inc. 0.00% Add +66.7% 2,500 $4K
California State Teachers Retirement System 0.00% No change 2,209 $3K
FMR LLC 0.00% Add +20.9% 1,831 $3K
Simplex Trading, LLC 0.00% Reduce -52.5% 1,634 $2K
Amalgamated Bank 0.00% No change 1,055 $2K
Sterling Capital Management LLC 0.00% Add +851.9% 771 $1K
Federated Hermes, Inc. 0.00% New 414 $613
Nisa Investment Advisors, LLC 0.00% Reduce -68.0% 40 $59
SBI Securities Co., Ltd. 0.00% — 40 $59
EverSource Wealth Advisors, LLC 0.00% New 33 $49
IFP Advisors, Inc 0.00% New 1 $1
Cwm, LLC 0.00% Add +59.9% 307 $0

"% of holder's portfolio" is HOWL's weight in each manager's 13F, not the share of Werewolf Therapeutics Inc. the manager owns.