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, Q4 2025
Institutional positions in Werewolf Therapeutics, Inc. as of Dec 31, 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
- 51
- −8 vs. Q3 2025
- Shares held
- 14.7M
- −2.00M (−12.0%) vs. Q3 2025
- Total value
- $9.34M
- −$23.6M (−71.7%) vs. Q3 2025
- New holders
- 7
- 14 more added
- Sold out
- 15
- 17 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Werewolf Therapeutics, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 62 | $0 | 0.00% | −744−92.3% | Reduced |
| Citigroup Inc | 1 | $1 | 0.00% | −8,660−100.0% | Reduced |
| Northwestern Mutual Wealth Management Co | 4 | $3 | 0.00% | +4 | New |
| Optiver Holding B.V. | 22 | $14 | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 39 | $25 | 0.00% | −29−42.6% | Reduced |
| SBI Securities Co., Ltd. | 40 | $25 | 0.00% | −1−2.4% | Reduced |
| Nisa Investment Advisors, LLC | 345 | $219 | 0.00% | −1,030−74.9% | Reduced |
| BNP Paribas Arbitrage, SA | 792 | $502 | 0.00% | −1−0.1% | Reduced |
| Group One Trading, L.P. | 1,871 | $1.19K | 0.00% | −800−30.0% | Reduced |
| JPMorgan Chase & Co | 2,072 | $1.31K | 0.00% | +949+84.5% | Added |
| FMR LLC | 3,631 | $2.30K | 0.00% | −7,653−67.8% | Reduced |
| Federated Hermes, Inc. | 4,387 | $2.78K | 0.00% | 00.0% | Unchanged |
| TFC Financial Management | 4,500 | $2.85K | 0.00% | +2,000+80.0% | Added |
| Financial Perspectives, Inc | 6,750 | $4.28K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 8,625 | $5.43K | 0.00% | −1,000−10.4% | Reduced |
| Cetera Investment Advisers | 10,200 | $6.46K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 10,300 | $6.53K | 0.00% | −24,300−70.2% | Reduced |
| StoneX Group Inc. | 10,511 | $6.66K | 0.00% | +10,511 | New |
| Highline Wealth Partners LLC | 12,000 | $7.60K | 0.00% | +7,000+140.0% | Added |
| Pacitti Group Inc. | 12,000 | $7.60K | 0.00% | +12,000 | New |
| Engineers Gate Manager LP | 12,185 | $7.72K | 0.00% | +12,185 | New |
| HBK Sorce Advisory LLC | 13,227 | $8.10K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 13,052 | $8.27K | 0.00% | +3,052+30.5% | Added |
| Barclays PLC | 13,236 | $8.39K | 0.00% | −39−0.3% | Reduced |
| Point72 Asset Management, L.P. | 14,483 | $9.18K | 0.00% | +14,483 | New |
| Delta Investment Management, LLC | 14,925 | $9.46K | 0.00% | +14,925 | New |
| Camden Capital, LLC | 15,000 | $9.50K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 24,054 | $15.3K | 0.00% | +8,418+53.8% | Added |
| Goldman Sachs Group Inc | 34,073 | $21.6K | 0.00% | −26,268−43.5% | Reduced |
| Morgan Stanley | 46,002 | $29.1K | 0.00% | +26,750+138.9% | Added |
| Edgewood Management LLC | 50,000 | $31.7K | 0.00% | 00.0% | Unchanged |
| Regal Investment Advisors LLC | 52,593 | $33.3K | 0.00% | +25,389+93.3% | Added |
| Vontobel Holding Ltd. | 60,003 | $38.0K | 0.00% | +24,003+66.7% | Added |
| UBS Group AG | 60,708 | $38.4K | 0.00% | +47,932+375.2% | Added |
| Bridgeway Capital Management, LLC | 77,000 | $48.8K | 0.00% | −25,000−24.5% | Reduced |
| Northern Trust Corp | 86,851 | $55.0K | 0.00% | +21,015+31.9% | Added |
| Susquehanna International Group, LLP | 99,829 | $63.2K | 0.00% | +6,788+7.3% | Added |
| BlackRock, Inc. | 101,643 | $64.4K | 0.00% | +320+0.3% | Added |
| State Street Corp | 119,168 | $75.5K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 157,322 | $99.7K | 0.00% | −111,255−41.4% | Reduced |
| Alyeska Investment Group, L.P. | 235,705 | $149.3K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 240,109 | $152.1K | 0.00% | −76,944−24.3% | Reduced |
| Geode Capital Management, LLC | 335,886 | $212.8K | 0.00% | +5,099+1.5% | Added |
| DC Funds, LP | 589,102 | $373.2K | 25.69% | 00.0% | Unchanged |
| Sphera Funds Management Ltd. | 626,810 | $397.1K | 0.08% | 00.0% | Unchanged |
| Lynx1 Capital Management LP | 655,926 | $415.5K | 0.08% | +655,926 | New |
| Renaissance Technologies LLC | 677,766 | $429.4K | 0.00% | +221,766+48.6% | Added |
| Bank of America Corp | 737,550 | $466.9K | 0.00% | −1,092,742−59.7% | Reduced |
| MPM Oncology Impact Management LP | 1,393,557 | $883.5K | 0.10% | −1,015,253−42.1% | Reduced |
| Vanguard Group Inc | 1,408,047 | $892.7K | 0.00% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 6,681,307 | $4.23M | 0.04% | 00.0% | Unchanged |
| PFM Health Sciences, LP | 0 | $0 | 0.00% | −401,110−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −154,534−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −39,859−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −34,285−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −29,250−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −20,139−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −17,807−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −14,436−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −12,230−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −6,004−100.0% | Sold out |
| CWM, LLC | 0 | $0 | 0.00% | −1,569−100.0% | Sold out |
| Rossby Financial, LCC | 0 | $0 | 0.00% | −860−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −157−100.0% | Sold out |
| Plante Moran Financial Advisors, LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| MPM Asset Management LLC | – | – | – | – | Not filed |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| Point72 Asia (Singapore) Pte. Ltd. | – | – | – | – | Not filed |