Werewolf TherapeuticsHOWL
13F holders, Q1 2025 (March 31)70holders −3
6new positions
9sold out
3famous investors
$0.97avg. 13F price*
At the end of Q1 2025, 70 institutions reported holding Werewolf Therapeutics Inc. (HOWL) in their 13F filings, down 3 from Q4 2024. 6 opened new positions and 9 sold out. The largest holders were Ra Capital Management, L.P. ($6.0M), MPM Asset Management LLC ($4.2M) and PFM Health Sciences, LP ($2.4M). 3 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Werewolf Therapeutics Inc.
- CUSIP
- 95075A107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $136K |
| Exits | 9 | $677K |
All 13F filers, Q4 2024 → Q1 2025: 620,002 shares bought and 1,351,669 shares sold, net −731,667 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 70 holders
| Ra Capital Management, L.P. | 0.10% | No change | 6,144,881 | $6.0M |
| MPM Asset Management LLC | 6.03% | Add +0.6% | 4,309,860 | $4.2M |
| PFM Health Sciences, LP | 0.19% | Reduce -13.7% | 2,506,520 | $2.4M |
| MPM Bioimpact LLC | 0.40% | Add +0.9% | 2,408,810 | $2.3M |
| Bank of America Corp. | 0.00% | Add +1.2% | 2,103,142 | $2.0M |
| BlackRock, Inc. | 0.00% | Reduce -1.7% | 1,671,855 | $1.6M |
| Vanguard Group Inc. | 0.00% | Add +6.2% | 1,509,436 | $1.5M |
| Rubric Capital Management LP | 0.02% | No change | 1,333,893 | $1.3M |
| Millennium Management | 0.00% | Add +31.6% | 784,617 | $763K |
| Geode Capital Management, LLC | 0.00% | Add +2.1% | 717,524 | $698K |
| Sphera Funds Management LTD. | 0.15% | No change | 626,810 | $609K |
| DC Funds, LP | 27.71% | No change | 589,102 | $573K |
| State Street Corp. | 0.00% | Add +4.1% | 444,272 | $432K |
| Northern Trust Corp. | 0.00% | Add +5.8% | 258,458 | $251K |
| Acadian Asset Management LLC | 0.00% | Add +3.5% | 250,676 | $242K |
| Alyeska Investment Group, L.P. | 0.00% | No change | 235,705 | $229K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -21.0% | 111,985 | $109K |
| Morgan Stanley | 0.00% | Reduce -21.9% | 107,827 | $105K |
| Deutsche Bank AG | 0.00% | No change | 101,626 | $99K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +33.2% | 95,712 | $93K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -56.6% | 84,607 | $82K |
| AQR Capital Management | 0.00% | New | 81,669 | $79K |
| Two Sigma Advisers, LP | 0.00% | Reduce -44.6% | 77,000 | $75K |
| Nuveen, LLC | 0.00% | — | 73,370 | $71K |
| Renaissance Technologies | 0.00% | Add +12.3% | 63,900 | $62K |
| Bank of New York Mellon Corp | 0.00% | Reduce -12.5% | 62,407 | $61K |
| Walleye Capital LLC | 0.00% | Reduce -38.7% | 59,347 | $58K |
| Two Sigma Investments, LP | 0.00% | Reduce -37.8% | 58,132 | $57K |
| Edgewood Management LLC | 0.00% | No change | 50,000 | $49K |
| Susquehanna International Group, LLP | 0.00% | Add +45.7% | 49,341 | $48K |
| Barclays PLC | 0.00% | Reduce -24.1% | 45,361 | $44K |
| Bridgeway Capital Management, LLC | 0.00% | Reduce -63.9% | 39,586 | $38K |
| Vontobel Holding Ltd. | 0.00% | New | 35,000 | $34K |
| Rhumbline Advisers | 0.00% | Add +8.0% | 31,231 | $30K |
| Regal Investment Advisors LLC | 0.00% | No change | 27,204 | $26K |
| Intech Investment Management LLC | 0.00% | Add +49.6% | 22,239 | $22K |
| Citigroup Inc. | 0.00% | Reduce -7.7% | 21,907 | $21K |
| Sei Investments Co. | 0.00% | No change | 21,322 | $21K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.4% | 18,651 | $18K |
| Wells Fargo & Company | 0.00% | Add +5.2% | 17,856 | $17K |
| UBS Group AG | 0.00% | Reduce -42.0% | 17,688 | $17K |
| JPMorgan Chase & Co. | 0.00% | Reduce -74.6% | 16,012 | $16K |
| Corebridge Financial, Inc. | 0.00% | Add +1.3% | 15,355 | $15K |
| Certuity, LLC | 0.00% | No change | 15,000 | $15K |
| Invesco Ltd. | 0.00% | Reduce -2.5% | 14,232 | $14K |
| HBK Sorce Advisory LLC | 0.00% | Reduce -11.8% | 13,541 | $13K |
| Squarepoint Ops LLC | 0.00% | New | 11,828 | $11K |
| Ieq Capital, LLC | 0.00% | New | 10,837 | $11K |
| Larson Financial Group LLC | 0.00% | No change | 10,000 | $10K |
| Osaic Holdings, Inc. | 0.00% | Add +12.2% | 9,625 | $9K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +56.1% | 9,142 | $9K |
| Cwm, LLC | 0.00% | Add +2110.1% | 6,785 | $7K |
| Financial Perspectives, Inc | 0.00% | No change | 6,750 | $7K |
| Federated Hermes, Inc. | 0.00% | Add +1380.7% | 6,130 | $6K |
| New York State Common Retirement Fund | 0.00% | No change | 5,100 | $5K |
| FMR LLC | 0.00% | Add +143.6% | 4,461 | $4K |
| BNP Paribas Financial Markets | 0.00% | Reduce -50.8% | 3,365 | $3K |
| Royal Bank of Canada | 0.00% | Reduce -17.7% | 2,779 | $3K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 2,987 | $3K |
| Legal & General Group Plc | 0.00% | No change | 2,642 | $3K |
| TFC Financial Management, Inc. | 0.00% | No change | 2,500 | $2K |
| California State Teachers Retirement System | 0.00% | No change | 2,209 | $2K |
| Amalgamated Bank | 0.00% | No change | 1,055 | $1K |
| Simplex Trading, LLC | 0.00% | Add +15.7% | 1,890 | $1K |
| Rossby Financial, LCC | 0.00% | New | 860 | $766 |
| Sterling Capital Management LLC | 0.00% | Reduce -46.3% | 414 | $402 |
| SBI Securities Co., Ltd. | 0.00% | No change | 40 | $39 |
| EverSource Wealth Advisors, LLC | 0.00% | Add +6.1% | 35 | $34 |
| True Wealth Design, LLC | 0.00% | New | 22 | $22 |
| IFP Advisors, Inc | 0.00% | No change | 1 | $1 |
"% of holder's portfolio" is HOWL's weight in each manager's 13F, not the share of Werewolf Therapeutics Inc. the manager owns.