MPM Asset Management LLC 13F holdings, Q3 2025
Holdings as of September 30, 2025 · filings on SEC EDGAR · this is the latest filing on record
MPM Asset Management LLC disclosed 4 US equity positions worth $44.5m in its Q3 2025 13F filing. The largest position was TRDA at 57.1% of the reported book, followed by DYN and HOWL. Against the Q2 2025 filing, it opened 0 new positions, added to 0 and reduced 0 among the top 4 holdings.
What did MPM Asset Management LLC own in Q3 2025? Top 4 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q2 2025 |
|---|---|---|---|---|---|---|---|
| 1 | TRDA Entrada Therapeutics, Inc. | 57.1% | $25.4m | 4,381,062 | 0% | held | |
| 2 | DYN Dyne Therapeutics, Inc. | Healthcare | 19.4% | $8.6m | 682,376 | 0% | held |
| 3 | HOWL Werewolf Therapeutics, Inc. | 19.1% | $8.5m | 4,309,860 | 0% | held | |
| 4 | RPTX Repare Therapeutics, Inc. | 4.4% | $2.0m | 1,121,318 | 0% | held |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.