HOWL Werewolf Therapeutics, Inc.: institutional ownership and insider trading
54 funds reported holding $13.7M of Werewolf Therapeutics, Inc. in their latest 13F filings; in Q2 2026 funds net sold $1.10M, with 9 new positions and 11 funds selling out; over the last 12 months insiders bought $0 and sold $8.67M on the open market.
Famous investors holding HOWL
- Renaissance Technologies (Renaissance Technologies): $243K, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $32.6K, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $22.3K, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $9.83K, 0.0% of the portfolio
Largest institutional holders of HOWL
- MPM ASSET MANAGEMENT LLC — $8.49M
- VANGUARD GROUP INC — $893K
- RA CAPITAL MANAGEMENT, L.P. — $859K
- BALYASNY ASSET MANAGEMENT L.P. — $644K
- VANGUARD CAPITAL MANAGEMENT LLC — $438K
- RENAISSANCE TECHNOLOGIES LLC — $243K
- Lynx1 Capital Management LP — $237K
- SPHERA FUNDS MANAGEMENT LTD. — $226K
- DC Funds, LP — $212K
- Verdad Advisers, LP — $126K
Recent HOWL insider trades
- Jul 7, 2026: Evnin Luke sold 143,199 shares ($44.7K)
- Jun 29, 2026: Evnin Luke sold 157,084 shares ($47.1K)
- Jun 17, 2026: RA Capital Healthcare Fund LP sold 416,911 shares ($146K)
- Jun 16, 2026: RA Capital Healthcare Fund LP sold 448,836 shares ($174K)
5%+ owners
- MOLL PETER: 5.2% (Schedule 13G, filed Sep 21, 2026)