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 1 sale; 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 | $79.2M |
| Q1 2024 | 61 | $209.0M |
| 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 | $83.5M |
| Q4 2021 | 51 | $228.3M |
| 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 |
|---|---|---|---|---|---|
| Optiver Holding B.V. | 22 | $43 | 0.00% | +22 | New |
| EverSource Wealth Advisors, LLC | 35 | $69 | 0.00% | −132−79.0% | Reduced |
| SBI Securities Co., Ltd. | 41 | $81 | 0.00% | +1+2.5% | Added |
| Plante Moran Financial Advisors, LLC | 50 | $99 | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 68 | $133 | 0.00% | +68 | New |
| Advisory Services Network, LLC | 157 | $309 | 0.00% | +157 | New |
| Royal Bank of Canada | 806 | $1.00K | 0.00% | −9,737−92.4% | Reduced |
| BNP Paribas Arbitrage, SA | 793 | $1.56K | 0.00% | −2,820−78.1% | Reduced |
| Rossby Financial, LCC | 860 | $1.68K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,123 | $2.21K | 0.00% | −9,775−89.7% | Reduced |
| Nisa Investment Advisors, LLC | 1,375 | $2.71K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 1,569 | $3.00K | 0.00% | −6,879−81.4% | Reduced |
| TFC Financial Management | 2,500 | $4.92K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 2,671 | $5.26K | 0.00% | +2,671 | New |
| Federated Hermes, Inc. | 4,387 | $8.64K | 0.00% | 00.0% | Unchanged |
| Highline Wealth Partners LLC | 5,000 | $9.85K | 0.00% | −5,000−50.0% | Reduced |
| Tower Research Capital LLC (TRC) | 6,004 | $11.8K | 0.00% | −8,373−58.2% | Reduced |
| Financial Perspectives, Inc | 6,750 | $13.3K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 9,625 | $13.3K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 8,661 | $17.1K | 0.00% | +8,340+2,598.1% | Added |
| Larson Financial Group LLC | 10,000 | $19.7K | 0.00% | 00.0% | Unchanged |
| Cetera Investment Advisers | 10,200 | $20.1K | 0.00% | +10,200 | New |
| FMR LLC | 11,284 | $22.2K | 0.00% | 00.0% | Unchanged |
| HBK Sorce Advisory LLC | 13,227 | $23.3K | 0.00% | 00.0% | Unchanged |
| Virtu Financial LLC | 12,230 | $24.0K | 0.00% | +12,230 | New |
| UBS Group AG | 12,776 | $25.2K | 0.00% | +9,338+271.6% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 13,016 | $25.6K | 0.00% | −7,110−35.3% | Reduced |
| Barclays PLC | 13,275 | $26.2K | 0.00% | +39+0.3% | Added |
| Raymond James Financial Inc | 14,436 | $28.4K | 0.00% | +1,392+10.7% | Added |
| Camden Capital, LLC | 15,000 | $29.6K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 15,636 | $30.0K | 0.00% | +8,637+123.4% | Added |
| AQR Capital Management LLC | 17,807 | $35.1K | 0.00% | −74,361−80.7% | Reduced |
| Morgan Stanley | 19,252 | $37.9K | 0.00% | −7,948−29.2% | Reduced |
| Two Sigma Investments, LP | 20,139 | $39.7K | 0.00% | −25,283−55.7% | Reduced |
| Regal Investment Advisors LLC | 27,204 | $53.6K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 29,250 | $57.6K | 0.00% | −15,011−33.9% | Reduced |
| Acadian Asset Management LLC | 34,285 | $67.0K | 0.00% | −26,992−44.0% | Reduced |
| Two Sigma Advisers, LP | 34,600 | $68.2K | 0.00% | −22,000−38.9% | Reduced |
| Vontobel Holding Ltd. | 36,000 | $70.9K | 0.00% | −4,000−10.0% | Reduced |
| HRT Financial LP | 39,859 | $78.0K | 0.00% | −2,621−6.2% | Reduced |
| Cubist Systematic Strategies, LLC | 46,711 | $92.0K | 0.00% | +46,711 | New |
| Edgewood Management LLC | 50,000 | $98.5K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 60,341 | $118.9K | 0.00% | −167,101−73.5% | Reduced |
| Northern Trust Corp | 65,836 | $129.7K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 93,041 | $183.3K | 0.00% | +13,439+16.9% | Added |
| BlackRock, Inc. | 101,323 | $199.6K | 0.00% | −260,660−72.0% | Reduced |
| Bridgeway Capital Management, LLC | 102,000 | $200.9K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 119,168 | $234.8K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 154,534 | $304.4K | 0.00% | +154,534 | New |
| Alyeska Investment Group, L.P. | 235,705 | $464.3K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 268,577 | $529.1K | 0.00% | −106,362−28.4% | Reduced |
| Millennium Management LLC | 317,053 | $624.6K | 0.00% | −379,642−54.5% | Reduced |
| Geode Capital Management, LLC | 330,787 | $651.8K | 0.00% | +2,832+0.9% | Added |
| PFM Health Sciences, LP | 401,110 | $790.2K | 0.07% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 456,000 | $898.3K | 0.00% | +139,700+44.2% | Added |
| DC Funds, LP | 589,102 | $1.16M | 37.32% | 00.0% | Unchanged |
| Sphera Funds Management Ltd. | 626,810 | $1.23M | 0.29% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,408,047 | $2.77M | 0.00% | +109,796+8.5% | Added |
| Bank of America Corp | 1,830,292 | $3.61M | 0.00% | −298,732−14.0% | Reduced |
| MPM Oncology Impact Management LP | 2,408,810 | $4.75M | 0.78% | 00.0% | Unchanged |
| MPM Asset Management LLC | 4,309,860 | $8.49M | 19.08% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 6,681,307 | $13.2M | 0.16% | 00.0% | Unchanged |
| 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 |