Werewolf Therapeutics, Inc.
HOWL- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001785530
In the last 90 days, Werewolf Therapeutics, Inc. insiders filed 0 open-market purchases and 2 sales; 45 institutions reported holding it in 13F filings for Q2 2026, worth $3.91M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Werewolf Therapeutics, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 62
- −2 vs. Q2 2025
- Shares held
- 21.1M
- −1.20M (−5.4%) vs. Q2 2025
- Total value
- $41.6M
- +$17.3M (+71.0%) vs. Q2 2025
- New holders
- 8
- 10 more added
- Sold out
- 10
- 21 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting HOWL on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 45 | $3.91M |
| Q1 2026 | 48 | $11.7M |
| Q4 2025 | 51 | $9.34M |
| Q3 2025 | 62 | $41.6M |
| Q2 2025 | 65 | $24.3M |
| Q1 2025 | 70 | $26.7M |
| Q4 2024 | 73 | $41.7M |
| Q3 2024 | 69 | $68.3M |
| Q2 2024 | 71 | $79.3M |
| Q1 2024 | 61 | $209.7M |
| Q4 2023 | 41 | $106.8M |
| Q3 2023 | 35 | $51.1M |
| Q2 2023 | 36 | $73.3M |
| Q1 2023 | 38 | $62.5M |
| Q4 2022 | 39 | $42.8M |
| Q3 2022 | 44 | $94.5M |
| Q2 2022 | 46 | $78.0M |
| Q1 2022 | 49 | $84.3M |
| Q4 2021 | 51 | $228.4M |
| Q3 2021 | 42 | $326.2M |
| Q2 2021 | 45 | $344.3M |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Werewolf Therapeutics, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 6,681,307 | $13.2M | 0.16% | 00.0% | Unchanged |
| MPM Asset Management LLC | 4,309,860 | $8.49M | 19.08% | 00.0% | Unchanged |
| MPM Oncology Impact Management LP | 2,408,810 | $4.75M | 0.78% | 00.0% | Unchanged |
| Bank of America Corp | 1,830,292 | $3.61M | 0.00% | −298,732−14.0% | Reduced |
| Vanguard Group Inc | 1,408,047 | $2.77M | 0.00% | +109,796+8.5% | Added |
| Sphera Funds Management Ltd. | 626,810 | $1.23M | 0.29% | 00.0% | Unchanged |
| DC Funds, LP | 589,102 | $1.16M | 37.32% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 456,000 | $898.3K | 0.00% | +139,700+44.2% | Added |
| PFM Health Sciences, LP | 401,110 | $790.2K | 0.07% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 330,787 | $651.8K | 0.00% | +2,832+0.9% | Added |
| Millennium Management LLC | 317,053 | $624.6K | 0.00% | −379,642−54.5% | Reduced |
| Jane Street Group, LLC | 268,577 | $529.1K | 0.00% | −106,362−28.4% | Reduced |
| Alyeska Investment Group, L.P. | 235,705 | $464.3K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 154,534 | $304.4K | 0.00% | +154,534 | New |
| State Street Corp | 119,168 | $234.8K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 102,000 | $200.9K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 101,323 | $199.6K | 0.00% | −260,660−72.0% | Reduced |
| Susquehanna International Group, LLP | 93,041 | $183.3K | 0.00% | +13,439+16.9% | Added |
| Northern Trust Corp | 65,836 | $129.7K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 60,341 | $118.9K | 0.00% | −167,101−73.5% | Reduced |
| Edgewood Management LLC | 50,000 | $98.5K | 0.00% | 00.0% | Unchanged |
| Cubist Systematic Strategies, LLC | 46,711 | $92.0K | 0.00% | +46,711 | New |
| HRT Financial LP | 39,859 | $78.0K | 0.00% | −2,621−6.2% | Reduced |
| Vontobel Holding Ltd. | 36,000 | $70.9K | 0.00% | −4,000−10.0% | Reduced |
| Two Sigma Advisers, LP | 34,600 | $68.2K | 0.00% | −22,000−38.9% | Reduced |
| Acadian Asset Management LLC | 34,285 | $67.0K | 0.00% | −26,992−44.0% | Reduced |
| Qube Research & Technologies Ltd | 29,250 | $57.6K | 0.00% | −15,011−33.9% | Reduced |
| Regal Investment Advisors LLC | 27,204 | $53.6K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 20,139 | $39.7K | 0.00% | −25,283−55.7% | Reduced |
| Morgan Stanley | 19,252 | $37.9K | 0.00% | −7,948−29.2% | Reduced |
| AQR Capital Management LLC | 17,807 | $35.1K | 0.00% | −74,361−80.7% | Reduced |
| Simplex Trading, LLC | 15,636 | $30.0K | 0.00% | +8,637+123.4% | Added |
| Camden Capital, LLC | 15,000 | $29.6K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 14,436 | $28.4K | 0.00% | +1,392+10.7% | Added |
| Barclays PLC | 13,275 | $26.2K | 0.00% | +39+0.3% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 13,016 | $25.6K | 0.00% | −7,110−35.3% | Reduced |
| UBS Group AG | 12,776 | $25.2K | 0.00% | +9,338+271.6% | Added |
| Virtu Financial LLC | 12,230 | $24.0K | 0.00% | +12,230 | New |
| HBK Sorce Advisory LLC | 13,227 | $23.3K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 11,284 | $22.2K | 0.00% | 00.0% | Unchanged |
| Cetera Investment Advisers | 10,200 | $20.1K | 0.00% | +10,200 | New |
| Larson Financial Group LLC | 10,000 | $19.7K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 8,661 | $17.1K | 0.00% | +8,340+2,598.1% | Added |
| Advisor Group Holdings, Inc. | 9,625 | $13.3K | 0.00% | 00.0% | Unchanged |
| Financial Perspectives, Inc | 6,750 | $13.3K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 6,004 | $11.8K | 0.00% | −8,373−58.2% | Reduced |
| Highline Wealth Partners LLC | 5,000 | $9.85K | 0.00% | −5,000−50.0% | Reduced |
| Federated Hermes, Inc. | 4,387 | $8.64K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 2,671 | $5.26K | 0.00% | +2,671 | New |
| TFC Financial Management | 2,500 | $4.92K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 1,569 | $3.00K | 0.00% | −6,879−81.4% | Reduced |
| Nisa Investment Advisors, LLC | 1,375 | $2.71K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,123 | $2.21K | 0.00% | −9,775−89.7% | Reduced |
| Rossby Financial, LCC | 860 | $1.68K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 793 | $1.56K | 0.00% | −2,820−78.1% | Reduced |
| Royal Bank of Canada | 806 | $1.00K | 0.00% | −9,737−92.4% | Reduced |
| Advisory Services Network, LLC | 157 | $309 | 0.00% | +157 | New |
| SRS Capital Advisors, Inc. | 68 | $133 | 0.00% | +68 | New |
| Plante Moran Financial Advisors, LLC | 50 | $99 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 41 | $81 | 0.00% | +1+2.5% | Added |
| EverSource Wealth Advisors, LLC | 35 | $69 | 0.00% | −132−79.0% | Reduced |
| Optiver Holding B.V. | 22 | $43 | 0.00% | +22 | New |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −103,785−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −84,421−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −26,983−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −25,791−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −22,409−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −11,345−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −459−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −403−100.0% | Sold out |
| Essential Partners LLC | 0 | $0 | 0.00% | −52−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Avantax Advisory Services, Inc. | – | – | – | – | Not filed |