InsiderTrades

MPM BioImpact LLC

SEC CIK 1687078 · EDGAR

Buying vs selling by month open-market trades, last 60 months, all 2 companies
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
HOWLWerewolf Therapeutics, Inc.Former 10% Owner 4.78M — $479.1K 22025-11-042025-12-02
CGEMCullinan Therapeutics, Inc.10% 7.65M — $2.59M 42021-09-032021-09-16

Most active insiders at HOWL, 12 months

#InsiderTitleBoughtSold
1 EVNIN LUKEDir —$3.26M
2 MPM BioVentures 2014 LLC10% —$1.09M
3 RA CAPITAL MANAGEMENT, L.P.10% —$963.9K
4 UBS Oncology Impact Fund L.P.10% —$824.5K
5 MPM Asset Management Investors BV2014 LLC10% —$528.5K
6 MPM Oncology Innovations Fund GP LLC10% —$528.1K
7 MPM BioImpact LLCFormer 10% Owner —$479.1K
8 MPM ONCOLOGY INNOVATIONS FUND LP10% —$391.6K
9 MPM BioVentures 2014, L.P.10% —$241.3K
10 MPM BioVentures 2014 (B), L.P.Former 10% Owner —$183.3K

Transactions 6

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
MI 2025-12-04 2025-12-02+ HOWL Werewolf Therapeutics, Inc. MPM BioImpact LLC Former 10% Owner S - Sale $0.9176 -199.7K 4.78M -4% -$183.3K
MI 2025-11-06 2025-11-04+ HOWL Werewolf Therapeutics, Inc. MPM BioImpact LLC 10% S - Sale $1.22 -242.9K 6.01M -4% -$295.8K
2021-09-20 2021-09-16 CGEM Cullinan Therapeutics, Inc. BioImpact Capital LLC 10% S - Sale $29.06 -3,124 7.65M -0.0% -$90.8K
M 2021-09-16 2021-09-14+ CGEM Cullinan Therapeutics, Inc. BioImpact Capital LLC 10% S - Sale $29.17 -13.5K 7.66M -0.2% -$394.6K
M 2021-09-13 2021-09-09+ CGEM Cullinan Therapeutics, Inc. BioImpact Capital LLC 10% S - Sale $29.23 -23.3K 7.66M -0.3% -$679.7K
M 2021-09-08 2021-09-03+ CGEM Cullinan Therapeutics, Inc. BioImpact Capital LLC 10% S - Sale $29.20 -48.6K 7.69M -0.6% -$1.42M

Purchase Sale Sale after option exercise All abbreviations