MPM Asset Management LLC
- SEC CIK
- 0001263048
- Latest filing
- Nov 14, 2025
Holdings in Q2 2021
Holdings as of Jun 30, 2021, filed Aug 13, 2021. Long positions only; changes compare share counts with Q1 2021.
- Positions
- 9
- +1 vs. Q1 2021
- Portfolio value
- $537.9M
- +$20.3M (+3.9%) vs. Q1 2021
| Security | Class | Shares | Value | % of portfolio | Share change | Action | History |
|---|---|---|---|---|---|---|---|
| DYNDyne Therapeutics, Inc. | COM | 4,951,303 | $104.2M | 19.4% | 00.0% | Unchanged | History |
| ITOSiTeos Therapeutics, Inc. | COM | 3,665,787 | $94.0M | 17.5% | −40,876−1.1% | Reduced | History |
| HOWLWerewolf Therapeutics, Inc. | COM | 4,284,172 | $74.7M | 13.9% | +4,284,172 | New | History |
| RPTXRepare Therapeutics Inc. | COM | 2,271,177 | $70.8M | 13.2% | −331,912−12.8% | Reduced | History |
| TCRRTCR2 Therapeutics Inc. | COM | 4,050,865 | $66.5M | 12.4% | 00.0% | Unchanged | History |
| HARPHarpoon Therapeutics, Inc. | COM | 3,130,267 | $43.4M | 8.1% | −108,039−3.3% | Reduced | History |
| ONCROncorus, Inc. | COM | 2,849,464 | $39.3M | 7.3% | 00.0% | Unchanged | History |
| Chiasma, Inc16706W102 | COM | 5,736,296 | $27.1M | 5.0% | 00.0% | Unchanged | – |
| RYTMRhythm Pharmaceuticals, Inc. | COM | 909,258 | $17.8M | 3.3% | 00.0% | Unchanged | History |