November 19, 2025 · Form 4 insider transaction
MPM BioVentures 2014, L.P. sold 66,324 shares of HOWL at $0.94 per share, a transaction worth $62.3K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day 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: 4,554 by AM LLC, 28,768 by BV 2014, 1,919 by BV 2014(B), 990 by AM BV2014, 6,335 by MPM OIF and 23,758 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 $0.901 to $0.9806 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: 368,304 by AM LLC, 2,325,920 by BV 2014, 155,135 by BV 2014(B), 80,056 by AM BV2014, 510,123 by MPM OIF and 1,923,050 by UBS Oncology.