November 25, 2025 · Form 4 insider transaction
MPM BioVentures 2014, L.P. sold 42,533 shares of HOWL at $0.92 per share, a transaction worth $39.1K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 0 days after the transaction.
Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 dated September 24, 2025.; The shares were sold as follows: 2,920 by AM LLC, 18,449 by BV 2014, 1,230 by BV 2014(B), 635 by AM BV2014, 4,063 by MPM OIF and 15,236 by UBS Oncology.; The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.90 to $0.99 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.; MPM 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. MPM BioImpact LLC ("BioImpact") is the General Partner of Oncology Impact Fund (Cayman) Management L.P., the General Partner of UBS Oncology. Ansbert Gadicke is a member of AM LLC, a managing director of BV LLC, a manager of MPM OIF GP and the managing partner of BioImpact. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his or its pecuniary interest therein.; The shares are held as follows: 352,045 by AM LLC, 2,223,199 by BV 2014, 148,284 by BV 2014(B), 76,522 by AM BV2014, 487,501 by MPM OIF and 1,838,219 by UBS Oncology.