MPM BioVentures 2014 L.P. 13D/13G Filings for Werewolf Therapeutics, Inc. (HOWL)

MPM BioVentures 2014 L.P. 13D and 13G filings for Werewolf Therapeutics, Inc.:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Shares have been adjusted for stock splits.
Time period
Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2025-12-03
7:04 pm
Sale
2025-12-0113DWerewolf Therapeutics, Inc.
HOWL
MPM BioVentures 2014 L.P.4,867,341
10.000%
-614,198decrease
(-11.20%)
Filing
2025-11-17
8:00 pm
Sale
2025-11-1313DWerewolf Therapeutics, Inc.
HOWL
MPM BioVentures 2014 L.P.5,481,539
11.300%
-666,071decrease
(-10.83%)
Filing
2025-11-04
6:33 pm
Purchase
2025-10-3113DWerewolf Therapeutics, Inc.
HOWL
MPM BioVentures 2014 L.P.6,147,610
13.400%
6,147,610increase
(New Position)
Filing