Terminal · Institutions

Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.

MPM ASSET MANAGEMENT LLC 13F Holdings -- Portfolio & Top Positions (2025-09-30)

MPM ASSET MANAGEMENT LLC (CIK 1263048) reported $44.5M across 4 reported positions in its SEC 13F filing for 2025-09-30. Largest positions: TRDA ($25.4M, 57.09%), DYN ($8.6M, 19.40%), HOWL ($8.5M, 19.08%), RPTX ($2.0M, 4.43%), ADAP ($0, 0.00%). Source: SEC Form 13F.

RankTickerCompanyValue% PortfolioSharesAction
1TRDAEntrada Therapeutics, Inc.$25.4M57.09%4.4MHold
2DYNDyne Therapeutics, Inc.$8.6M19.40%682,376Hold
3HOWLWerewolf Therapeutics, Inc.$8.5M19.08%4.3MHold
4RPTXRepare Therapeutics, Inc.$2.0M4.43%1.1MHold
5ADAPAdaptimmune Therapeutics plc$00.00%0Exited

Source: SEC Form 13F filings · as of 2025-09-30