Werewolf Therapeutics, Inc. - HOWL
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DC Funds, LP | History | No change | 589,102 | 373,196 | 25.69% | 37.3% | 1 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| RA CAPITAL MANAGEMENT, L.P. | History | No change | 6,681,307 | 4,232 | 0.04% | 0.16% | 2 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | No change | 1,408,047 | 892 | 0.0% | 0.0% | 3 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| MPM BioImpact LLC | History | Reduced | 1,393,557 | 883 | 0.1% | 0.78% | 4 | -1,015,253 | -42.15% | Q4 2025 | Feb 17, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 737,550 | 466 | 0.0% | 0.0% | 5 | -1,092,742 | -59.7% | Q4 2025 | Feb 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 677,766 | 429 | 0.0% | 0.0% | 6 | +221,766 | 48.63% | Q4 2025 | Feb 12, 2026 |
| Lynx1 Capital Management LP | History | New | 655,926 | 415 | 0.08% | — | 7 | +655,926 | New | Q4 2025 | Feb 17, 2026 |
| SPHERA FUNDS MANAGEMENT LTD. | History | No change | 626,810 | 397 | 0.08% | 0.26% | 8 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 335,886 | 212 | 0.0% | 0.0% | 9 | +5,099 | 1.54% | Q4 2025 | Feb 09, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 240,109 | 152 | 0.0% | 0.0% | 10 | -76,944 | -24.27% | Q4 2025 | Feb 17, 2026 |
| Alyeska Investment Group, L.P. | History | No change | 235,705 | 149 | 0.0% | 0.0% | 11 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| JANE STREET GROUP, LLC | History | Reduced | 157,322 | 99 | 0.0% | 0.0% | 12 | -111,255 | -41.42% | Q4 2025 | Feb 12, 2026 |
| STATE STREET CORP | History | No change | 119,168 | 75 | 0.0% | 0.0% | 13 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| BlackRock, Inc. | History | Added to | 101,643 | 64 | 0.0% | 0.0% | 14 | +320 | 0.32% | Q4 2025 | Feb 12, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 99,829 | 63 | 0.0% | 0.0% | 15 | +6,788 | 7.3% | Q4 2025 | Feb 17, 2026 |
| NORTHERN TRUST CORP | History | Added to | 86,851 | 55 | 0.0% | 0.0% | 16 | +21,015 | 31.92% | Q4 2025 | Feb 17, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Reduced | 77,000 | 48 | 0.0% | 0.0% | 17 | -25,000 | -24.51% | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | Added to | 60,708 | 38 | 0.0% | 0.0% | 19 | +47,932 | 375.17% | Q4 2025 | Jan 29, 2026 |
| Vontobel Holding Ltd. | History | Added to | 60,003 | 38 | 0.0% | 0.0% | 18 | +24,003 | 66.68% | Q4 2025 | Feb 13, 2026 |
| Regal Investment Advisors LLC | History | Added to | 52,593 | 33 | 0.0% | 0.0% | 20 | +25,389 | 93.33% | Q4 2025 | Feb 17, 2026 |
| EDGEWOOD MANAGEMENT LLC | History | No change | 50,000 | 31 | 0.0% | 0.0% | 21 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| MORGAN STANLEY | History | Added to | 46,002 | 29 | 0.0% | 0.0% | 22 | +26,750 | 138.95% | Q4 2025 | Feb 13, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 34,073 | 21 | 0.0% | 0.0% | 23 | -26,268 | -43.53% | Q4 2025 | Mar 25, 2026 |
| SIMPLEX TRADING, LLC | History | Added to | 24,054 | 15 | 0.0% | 0.0% | 24 | +8,418 | 53.84% | Q4 2025 | Feb 11, 2026 |
| Delta Investment Management, LLC | History | New | 14,925 | 9 | 0.0% | — | 26 | +14,925 | New | Q4 2025 | Jan 30, 2026 |
| Point72 Asset Management, L.P. | History | New | 14,483 | 9 | 0.0% | — | 25 | +14,483 | New | Q4 2025 | Feb 17, 2026 |
| CERTUITY, LLC | History | No change | 15,000 | 9 | 0.0% | 0.0% | 27 | 0 | 0.0% | Q4 2025 | Jan 30, 2026 |
| Larson Financial Group LLC | History | Added to | 13,052 | 8 | 0.0% | 0.0% | 30 | +3,052 | 30.52% | Q4 2025 | Feb 06, 2026 |
| BARCLAYS PLC | History | Reduced | 13,236 | 8 | 0.0% | 0.0% | 28 | -39 | -0.29% | Q4 2025 | Feb 13, 2026 |
| HBK Sorce Advisory LLC | History | No change | 13,227 | 8 | 0.0% | 0.0% | 29 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| Engineers Gate Manager LP | History | New | 12,185 | 7 | 0.0% | — | 31 | +12,185 | New | Q4 2025 | Feb 17, 2026 |
| Ranch Capital Advisors Inc. | History | New | 12,000 | 7 | 0.0% | — | 32 | +12,000 | New | Q4 2025 | Feb 05, 2026 |
| HIGHLINE WEALTH PARTNERS LLC | History | Added to | 12,000 | 7 | 0.0% | 0.0% | 33 | +7,000 | 140.0% | Q4 2025 | Jan 15, 2026 |
| TWO SIGMA ADVISERS, LP | History | Reduced | 10,300 | 6 | 0.0% | 0.0% | 35 | -24,300 | -70.23% | Q4 2025 | Feb 17, 2026 |
| StoneX Group Inc. | History | New | 10,511 | 6 | 0.0% | — | 34 | +10,511 | New | Q4 2025 | Feb 12, 2026 |
| Cetera Investment Advisers | History | No change | 10,200 | 6 | 0.0% | 0.0% | 36 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 8,625 | 5 | 0.0% | 0.0% | 37 | -1,000 | -10.39% | Q4 2025 | Feb 17, 2026 |
| Financial Perspectives, Inc | History | No change | 6,750 | 4 | 0.0% | 0.0% | 38 | 0 | 0.0% | Q4 2025 | Jan 28, 2026 |
| FMR LLC | History | Reduced | 3,631 | 2 | 0.0% | 0.0% | 39 | -7,653 | -67.82% | Q4 2025 | Feb 17, 2026 |
| TFC Financial Management, Inc. | History | Added to | 4,500 | 2 | 0.0% | 0.0% | 41 | +2,000 | 80.0% | Q4 2025 | Jan 23, 2026 |
| FEDERATED HERMES, INC. | History | No change | 4,387 | 2 | 0.0% | 0.0% | 40 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 2,072 | 1 | 0.0% | 0.0% | 42 | +949 | 84.51% | Q4 2025 | Feb 11, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 1,871 | 1 | 0.0% | 0.0% | 43 | -800 | -29.95% | Q4 2025 | Feb 12, 2026 |
| PFM Health Sciences, LP | History | Closed out | 0 | 0 | — | 0.06% | — | -401,110 | -100.0% | Q3 2025 | Nov 14, 2025 |
| CITADEL ADVISORS LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -154,534 | -100.0% | Q3 2025 | Nov 14, 2025 |
| HRT FINANCIAL LP | History | Closed out | 0 | 0 | — | 0.0% | — | -39,859 | -100.0% | Q3 2025 | Nov 14, 2025 |
| ACADIAN ASSET MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -34,285 | -100.0% | Q3 2025 | Nov 13, 2025 |
| Qube Research & Technologies Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -29,250 | -100.0% | Q3 2025 | Nov 14, 2025 |
| TWO SIGMA INVESTMENTS, LP | History | Closed out | 0 | 0 | — | 0.0% | — | -20,139 | -100.0% | Q3 2025 | Nov 14, 2025 |
| AQR CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -17,807 | -100.0% | Q3 2025 | Nov 14, 2025 |
| RAYMOND JAMES FINANCIAL INC | History | Closed out | 0 | 0 | — | 0.0% | — | -14,436 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Virtu Financial LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -12,230 | -100.0% | Q3 2025 | Nov 14, 2025 |
| CITIGROUP INC | History | Reduced | 1 | 0 | — | 0.0% | — | -8,660 | -99.99% | Q4 2025 | Feb 13, 2026 |
| Tower Research Capital LLC (TRC) | History | Closed out | 0 | 0 | — | 0.0% | — | -6,004 | -100.0% | Q3 2025 | Nov 14, 2025 |
| CWM, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,569 | -100.0% | Q3 2025 | Oct 15, 2025 |
| NISA INVESTMENT ADVISORS, LLC | History | Reduced | 345 | 0 | — | 0.0% | — | -1,030 | -74.91% | Q4 2025 | Jan 15, 2026 |
| Rossby Financial, LCC | History | Closed out | 0 | 0 | — | 0.0% | — | -860 | -100.0% | Q3 2025 | Nov 10, 2025 |
| Advisory Services Network, LLC | History | Closed out | 0 | 0 | — | — | — | -157 | -100.0% | Q3 2025 | Nov 18, 2025 |
| ROYAL BANK OF CANADA | History | New | 62 | 0 | — | — | — | +62 | New | Q4 2025 | Feb 17, 2026 |
| Plante Moran Financial Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -50 | -100.0% | Q3 2025 | Nov 05, 2025 |
| EverSource Wealth Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -35 | -100.0% | Q3 2025 | Nov 10, 2025 |
| Arax Advisory Partners | History | Reduced | 39 | 0 | — | — | — | -29 | -42.65% | Q4 2025 | Feb 13, 2026 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | History | New | 4 | 0 | — | — | — | +4 | New | Q4 2025 | Feb 10, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 792 | 0 | — | 0.0% | — | -1 | -0.13% | Q4 2025 | Feb 10, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 40 | 0 | — | — | — | -1 | -2.44% | Q4 2025 | Feb 03, 2026 |
| Optiver Holding B.V. | History | No change | 22 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |