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, Q2 2026
Institutional positions in Werewolf Therapeutics, Inc. as of Jun 30, 2026. 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
- 45
- −3 vs. Q1 2026
- Shares held
- 10.9M
- −3.14M (−22.4%) vs. Q1 2026
- Total value
- $3.91M
- −$7.74M (−66.4%) vs. Q1 2026
- New holders
- 9
- 9 more added
- Sold out
- 12
- 9 more reduced
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Werewolf Therapeutics, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 2,387,744 | $859.3K | 0.01% | −4,293,563−64.3% | Reduced |
| Balyasny Asset Management LLC | 1,790,089 | $644.3K | 0.00% | +1,790,089 | New |
| Vanguard Capital Management LLC | 1,217,976 | $438.5K | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 674,632 | $242.8K | 0.00% | +158,414+30.7% | Added |
| Lynx1 Capital Management LP | 657,786 | $236.7K | 0.03% | 00.0% | Unchanged |
| Sphera Funds Management Ltd. | 626,810 | $225.6K | 0.03% | 00.0% | Unchanged |
| DC Funds, LP | 589,102 | $212.0K | 16.92% | 00.0% | Unchanged |
| Verdad Advisers, LP | 348,709 | $125.5K | 0.12% | +318,949+1,071.7% | Added |
| Geode Capital Management, LLC | 335,815 | $120.9K | 0.00% | −53,672−13.8% | Reduced |
| Bank of America Corp | 311,502 | $111.8K | 0.00% | +46,919+17.7% | Added |
| XTX Topco Ltd | 271,478 | $97.7K | 0.00% | +220,549+433.1% | Added |
| Jane Street Group, LLC | 251,837 | $90.6K | 0.00% | +169,001+204.0% | Added |
| UBS Group AG | 215,838 | $77.7K | 0.00% | +148,981+222.8% | Added |
| Vanguard Fiduciary Trust Co | 157,726 | $56.8K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 119,168 | $42.9K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 103,242 | $37.2K | 0.00% | +103,242 | New |
| BlackRock, Inc. | 101,573 | $36.6K | 0.00% | −350.0% | Reduced |
| Rangeley Capital, LLC | 100,000 | $36.0K | 0.03% | +100,000 | New |
| Northern Trust Corp | 86,851 | $31.3K | 0.00% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 86,554 | $31.2K | 0.00% | 00.0% | Unchanged |
| MPM Oncology Impact Management LP | 80,142 | $28.9K | 0.00% | −1,128,668−93.4% | Reduced |
| Millennium Management LLC | 62,055 | $22.3K | 0.00% | −69,995−53.0% | Reduced |
| Virtu Financial LLC | 45,467 | $16.0K | 0.00% | +45,467 | New |
| Gsa Capital Partners LLP | 27,146 | $10.0K | 0.00% | +27,146 | New |
| Two Sigma Investments, LP | 27,300 | $9.82K | 0.00% | +27,300 | New |
| StoneX Group Inc. | 20,000 | $9.00K | 0.00% | +20,000 | New |
| Goldman Sachs Group Inc | 20,023 | $7.21K | 0.00% | −18,243−47.7% | Reduced |
| Morgan Stanley | 19,108 | $6.88K | 0.00% | −14,691−43.5% | Reduced |
| Camden Capital, LLC | 15,000 | $5.40K | 0.00% | 00.0% | Unchanged |
| HBK Sorce Advisory LLC | 13,227 | $5.32K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 13,235 | $4.76K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 13,052 | $4.70K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 11,791 | $4.24K | 0.00% | +1,791+17.9% | Added |
| Pacitti Group Inc. | 11,000 | $3.96K | 0.00% | −1,000−8.3% | Reduced |
| Marest Capital, LLC | 10,870 | $3.91K | 0.00% | +10,870 | New |
| Cetera Investment Advisers | 10,200 | $3.67K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 9,897 | $3.56K | 0.00% | +9,897 | New |
| Advisor Group Holdings, Inc. | 8,625 | $3.10K | 0.00% | 00.0% | Unchanged |
| Financial Perspectives, Inc | 6,750 | $2.43K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 1,871 | $673 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 2,108 | $650 | 0.00% | +12+0.6% | Added |
| BNP Paribas Arbitrage, SA | 790 | $284 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 255 | $91 | 0.00% | −32,271−99.2% | Reduced |
| SBI Securities Co., Ltd. | 100 | $36 | 0.00% | +20+25.0% | Added |
| Optiver Holding B.V. | 22 | $8 | 0.00% | 00.0% | Unchanged |
| Squadron Capital Management LLC | 0 | $0 | 0.00% | −563,535−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −77,000−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −19,778−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −17,861−100.0% | Sold out |
| Delta Investment Management, LLC | 0 | $0 | 0.00% | −14,925−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −10,382−100.0% | Sold out |
| Vanguard Global Advisers, LLC | 0 | $0 | 0.00% | −10,343−100.0% | Sold out |
| TFC Financial Management | 0 | $0 | 0.00% | −4,500−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −3,384−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| FMR LLC | 0 | $0 | 0.00% | −39−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −12−100.0% | Sold out |