MPM Oncology Impact Management LP Portfolio Holdings
Q3 2025•40 long positions•$610.9M portfolio value
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Holding51 | Sector | Position↕ | Traded↕ | Ownership↕ | Shares Δ↕ | Shares Δ % | Market Cap↕ | Owned Since↕ |
|---|---|---|---|---|---|---|---|---|
Biotechnology Healthcare | $46.1M 7.54% | — | 0.451% 100.4K shares | — | — | $10.2B Large Cap | Q2 2022 Held for 3y 5m | |
Biotechnology Healthcare | $45.4M 7.42% | — | 12.95% 7.6M shares | — | — | $350.3M Small Cap | Q1 2021 Held for 4y 8m | |
Biotechnology Healthcare | $33.1M 5.42% | — | 0.521% 760.0K shares | — | — | $6.4B Mid Cap | Q2 2024 Held for 1y 5m | |
Biotechnology Healthcare | $31.2M 5.1% | — | 2.8% 3.4M shares | — | — | $1.1B Small Cap | Q1 2024 Held for 1y 8m | |
Biotechnology Healthcare | $27.9M 4.57% | — | 1.63% 1.7M shares | — | — | $1.7B Small Cap | Q1 2024 Held for 1y 8m | |
Biotechnology Healthcare | $26.9M 4.41% | — | 0.552% 438.5K shares | — | — | $4.9B Mid Cap | Q3 2024 Held for 1y 2m | |
Unknown Unknown | $25.3M 4.13% | — | — 745.1K shares | — | — | — — | Q1 2025 Held for 8 months | |
Biotechnology Healthcare | $21.2M 3.46% | +$21.2M New | 1.6% 1.4M shares | 0 → 1.4M +$21.2M | New | $1.3B Small Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $20.8M 3.4% | — | 1.78% 1.7M shares | — | — | $1.2B Small Cap | Q1 2025 Held for 8 months | |
Biotechnology Healthcare | $20.3M 3.32% | — | 0.809% 341.5K shares | — | — | $2.5B Mid Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $20.2M 3.31% | +$7.2M Bought | 0.653% 503.4K shares | 323.4K → 503.4K +$7.2M | +55.66% | $3.1B Mid Cap | Q3 2024 Held for 1y 2m | |
Biotechnology Healthcare | $18.6M 3.04% | — | 1.44% 789.7K shares | — | — | $1.3B Small Cap | Q3 2024 Held for 1y 2m | |
Biotechnology Healthcare | $18.3M 3.0% | — | 1.02% 1.4M shares | — | — | $1.8B Small Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $17.8M 2.91% | -$1.9M Sold | 2.96% 5.1M shares | 5.6M → 5.1M −$1.9M | -9.72% | $600.5M Small Cap | Q1 2024 Held for 1y 8m | |
Biotechnology Healthcare | $16.5M 2.7% | — | 0.333% 549.3K shares | — | — | $5.0B Mid Cap | Q1 2025 Held for 8 months | |
Biotechnology Healthcare | $16.4M 2.68% | — | 0.882% 563.1K shares | — | — | $1.9B Small Cap | Q4 2024 Held for 11 months | |
Medical - Diagnostics & Research Healthcare | $15.9M 2.61% | — | 0.072% 98.9K shares | — | — | $22.1B Large Cap | Q1 2024 Held for 1y 8m | |
Biotechnology Healthcare | $15.0M 2.46% | — | 1.02% 614.3K shares | — | — | $1.5B Small Cap | Q3 2024 Held for 1y 2m | |
Biotechnology Healthcare | $14.7M 2.41% | — | 0.169% 315.7K shares | — | — | $8.7B Mid Cap | Q3 2021 Held for 4y 2m | |
Biotechnology Healthcare | $14.2M 2.33% | — | 16.39% 14.7M shares | — | — | $86.9M Micro Cap | Q4 2024 Held for 11 months | |
Biotechnology Healthcare | $13.5M 2.21% | +$7.3M Bought | 0.669% 700.0K shares | 321.7K → 700.0K +$7.3M | +117.6% | $2.0B Mid Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $13.1M 2.14% | — | 1.32% 1.3M shares | — | — | $993.2M Small Cap | Q1 2025 Held for 8 months | |
Biotechnology Healthcare | $12.7M 2.08% | +$978.0 Bought | 3.62% 3.9M shares | 3.9M → 3.9M +$978.0 | +0.01% | $351.8M Small Cap | Q3 2024 Held for 1y 2m | |
Biotechnology Healthcare | $11.9M 1.95% | — | 1.32% 2.3M shares | — | — | $900.0M Small Cap | Q1 2023 Held for 2y 8m | |
Biotechnology Healthcare | $11.9M 1.95% | — | 0.411% 395.7K shares | — | — | $2.9B Mid Cap | Q1 2024 Held for 1y 8m | |
Biotechnology Healthcare | $11.0M 1.8% | — | 0.945% 1.5M shares | — | — | $1.2B Small Cap | Q3 2024 Held for 1y 2m | |
Biotechnology Healthcare | $10.5M 1.73% | — | 3.85% 1.1M shares | — | — | $273.6M Micro Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $10.1M 1.66% | +$6.8M Bought | 0.282% 150.0K shares | 50.0K → 150.0K +$6.8M | +200.0% | $3.6B Mid Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $10.1M 1.65% | — | 2.1% 1.6M shares | — | — | $480.5M Small Cap | Q3 2024 Held for 1y 2m | |
Biotechnology Healthcare | $7.9M 1.29% | — | 1.09% 2.9M shares | — | — | $723.8M Small Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $4.7M 0.777% | — | 5.27% 2.4M shares | — | — | $90.1M Micro Cap | Q2 2021 Held for 4y 5m | |
Biotechnology Healthcare | $4.5M 0.745% | +$4.5M New | 0.232% 200.0K shares | 0 → 200.0K +$4.5M | New | $2.0B Small Cap | Q3 2025 Held for 2 months | |
Unknown Unknown | $4.2M 0.692% | +$4.2M New | 0.61% 67.4K shares | 0 → 67.4K +$4.2M | New | $693.3M Small Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $4.2M 0.684% | — | 0.975% 555.2K shares | — | — | $428.8M Small Cap | Q4 2024 Held for 11 months | |
Biotechnology Healthcare | $3.9M 0.636% | -$3.1M Sold | 1.46% 380.0K shares | 686.0K → 380.0K −$3.1M | -44.61% | $265.7M Micro Cap | Q2 2024 Held for 1y 5m | |
Biotechnology Healthcare | $3.6M 0.593% | +$3.6M New | 1.04% 530.3K shares | 0 → 530.3K +$3.6M | New | $349.6M Small Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $2.7M 0.441% | +$2.7M New | 0.292% 135.0K shares | 0 → 135.0K +$2.7M | New | $923.0M Small Cap | Q3 2025 Held for 2 months | |
Unknown Unknown | $2.1M 0.349% | +$2.1M New | 0.156% 71.8K shares | 0 → 71.8K +$2.1M | New | $1.4B Small Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $1.4M 0.236% | — | 1.91% 819.9K shares | — | — | $75.6M Micro Cap | Q2 2020 Held for 5y 5m | |
Biotechnology Healthcare | $1.0M 0.166% | +$1.0M New | 0.517% 39.7K shares | 0 → 39.7K +$1.0M | New | $196.4M Micro Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | - — | -$2.4K Sold | — - shares | 37.0 → 0 −$2.4K | Sold | $3.5B Mid Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | - — | -$10.1M Sold | — - shares | 2.4M → 0 −$10.1M | Sold | $320.9M Small Cap | Q2 2023 Held for 2y 5m | |
Biotechnology Healthcare | - — | -$9.0M Sold | — - shares | 4.6M → 0 −$9.0M | Sold | $697.5M Small Cap | Q4 2024 Held for 11 months | |
Biotechnology Healthcare | - — | -$14.8M Sold | — - shares | 313.6K → 0 −$14.8M | Sold | $2.9B Mid Cap | Q2 2023 Held for 2y 5m | |
Medical - Diagnostics & Research Healthcare | - — | -$23.0M Sold | — - shares | 442.7K → 0 −$23.0M | Sold | $6.2B Mid Cap | Q2 2024 Held for 1y 5m | |
Unknown Unknown | - — | -$14.8M Sold | — - shares | 1.3M → 0 −$14.8M | Sold | $369.3M Small Cap | Q1 2025 Held for 8 months | |
Biotechnology Healthcare | - — | -$6.8M Sold | — - shares | 3.0M → 0 −$6.8M | Sold | $619.8M Small Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | - — | -$12.3M Sold | — - shares | 429.0K → 0 −$12.3M | Sold | $2.9B Mid Cap | Q3 2021 Held for 4y 2m | |
Biotechnology Healthcare | - — | -$2.9M Sold | — - shares | 491.2K → 0 −$2.9M | Sold | $97.9M Micro Cap | Q4 2024 Held for 11 months | |
Biotechnology Healthcare | - — | -$9.1M Sold | — - shares | 983.8K → 0 −$9.1M | Sold | $751.6M Small Cap | Q4 2024 Held for 11 months |
