HOWL — Werewolf Therapeutics, Inc.

Ownership history in MPM ASSET MANAGEMENT LLC  ·  18 quarters on record

This page tracks every 13F SEC filing in which MPM ASSET MANAGEMENT LLC reported a position in Werewolf Therapeutics, Inc. (HOWL). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
19.08% (2025 Q3)
Avg. % of fund
8.63%
First filed
2021 Q2
Last filed
2025 Q3
Quarters held
18
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 UNCHANGED 4,309,860 — 0% 19.08% $8.5M $1.97
2025 Q2 UNCHANGED 4,309,860 — 0% 10.84% $4.70B $1.09
2025 Q1 ADDED 4,309,860 +25,688 +0.6% 6.03% $4.2M $0.97
2024 Q4 UNCHANGED 4,284,172 — 0% 5.10% $6.3M $1.48
14 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    HOWL price (monthly, adj. close)

Other funds also holding HOWL

As of 2025 Q4 — sorted by position size

DC Funds, LP 3Y 25.69% MPM BioImpact LLC 3Y 0.1% Lynx1 Capital Management LP 3Y 0.08% SPHERA FUNDS MANAGEMENT LTD. 3Y 7Y 0.08% RA CAPITAL MANAGEMENT, L.P. 3Y 7Y 0.04% Ranch Capital Advisors Inc. 3Y 0.0% HIGHLINE WEALTH PARTNERS LLC 0.0% Regal Investment Advisors LLC 3Y 7Y 0.0% Delta Investment Management, LLC 3Y 7Y 0.0% Financial Perspectives, Inc 0.0%
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