SEC Form 4 · accession 0001134657-26-000020
Werewolf Therapeutics, Inc. · HOWL
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Luke Evnin
Director
Period of report
Jul 6, 2026
Accepted (ET)
Jul 8, 2026 · 5:34 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001785530
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF2,F3,F4,F5 | Jul 6, 2026 | S | 35,770 | $0.32 | D | 107,429 | I | See Footnotes |
| Common StockF6,F7,F4,F8 | Jul 7, 2026 | S | 107,429 | $0.31 | D | 0 | I | See Footnotes |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 dated March 26, 2026.
- F2The shares were sold as follows: 3,832 by MPM Asset Management LLC ("AM LLC"), 24,197 by MPM BioVentures 2014, L.P. ("BV 2014"), 1,614 by MPM BIoVentures 2014(B), L.P. ("BV 2014(B)"), 833 by MPM Asset Management Investors BV2014 LLC ("AM BV2014") and 5,294 by MPM Oncology Innovations Fund, L.P. ("MPM OIF").
- F3The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.3128 to $0.3388 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F4MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. MPM Oncology Innovations Fund GP LLC ("MPM OIF GP") is the general partner of MPM OIF. Luke Evnin is a member of AM LLC, a Managing Director of BV LLC and a manager of MPM OIF GP. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein.
- F5The shares are held as follows: 11,509 by AM LLC, 72,676 by BV 2014, 4,845 by BV 2014(B), 2,499 by AM BV2014 and 15,900 by MPM OIF.
- F6The shares were sold as follows: 11,509 by AM LLC, 72,676 by BV 2014, 4,845 by BV 2014(B), 2,499 by AM BV2014 and 15,900 by MPM OIF.
- F7The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.295 to $0.3342 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F8No shares held by AM LLC, BV 2014, BV 2014(B), AM BV2014 and MPM OIF.