Delisting risk
Werewolf Therapeutics
Develops conditionally activated cytokine and T-cell-engager therapies for cancer.
$0.9251
After-hours close−0.02 (−1.93%)
At close$0.9433(−2.83%)
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Breakdown13F · Form 4
Institutions 28.81%14.00M sharesInsiders 0.01%5.3K sharesOther 71.18%34.59M shares
Shares outstanding 48.60M · Float 42.46M · 87.4% free float
Institutions13F, as of Mar 31, 2026
48 holders · 14.00M shares · 10 new positions · 19 increased · 12 reduced · 12 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Ra Capital Management, L.P. | 6.68M | 13.75% | 0 | May 15, 2026 |
| Vanguard Capital Management LLC | 1.22M | 2.51% | +1.22Mnew | May 15, 2026 |
| Bioimpact Capital LLC | 1.21M | 2.49% | −184.7K | May 15, 2026 |
| LYNX1 Capital Management LP | 657.8K | 1.35% | +1.9K | May 4, 2026 |
| Sphera Funds Management Ltd. | 626.8K | 1.29% | 0 | May 15, 2026 |
| DC Funds, LP | 589.1K | 1.21% | 0 | May 14, 2026 |
| Squadron Capital Management LLC | 563.5K | 1.16% | +563.5Knew | May 15, 2026 |
| Renaissance Technologies LLC | 516.2K | 1.06% | −161.5K | May 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Gadicke Ansbert | other: Former 10% Owner | 4.78M | 9.84% | Dec 4, 2025 |
| Ra Capital Management, L.P. | 10 percent owner | 303.7K | 0.62% | Jun 22, 2026 |
| Michael J. Urban | officer: VP of Finance & Corp. Contr. | 5.3K | 0.01% | Mar 13, 2026 |
10 ten-percent owners hold 14.53M shares by Form 4, outside the officers-and-directors figure above · 7 people have not refiled in the last 18 months (3.39M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jul 7, 2026 | Luke Evnindirector | Sale | 107,429 | $0.3100 | 0 |
| Jul 6, 2026 | Luke Evnindirector | Sale | 35,770 | $0.3200 | 107,429 |
| Jun 29, 2026 | Luke Evnindirector | Sale | 157,084 | $0.3000 | 143,199 |
| Jun 17, 2026 | Ra Capital Management, L.P.10 percent owner | Sale · 2 lots | 416,911 | $0.3500 | 303,719 |
| Jun 16, 2026 | Ra Capital Management, L.P.10 percent owner | Sale · 2 lots | 149,625 | $0.3700 | 331,414 |
| Jun 15, 2026 | Ra Capital Management, L.P.10 percent owner | Sale · 2 lots | 128,770 | $0.3900 | 341,353 |
| Jun 12, 2026 | Ra Capital Management, L.P.10 percent owner | Sale · 2 lots | 170,441 | $0.4000 | 349,907 |
| Jun 11, 2026 | Ra Capital Management, L.P.10 percent owner | Sale · 2 lots | 262,503 | $0.3800 | 361,229 |
| Jun 10, 2026 | Ra Capital Management, L.P.10 percent owner | Sale · 2 lots | 45,923 | $0.3700 | 378,666 |
| Jun 9, 2026 | Ra Capital Management, L.P.10 percent owner | Sale · 2 lots | 369,800 | $0.3700 | 381,717 |
CongressHouse and Senate disclosures
Not reported.