| Type | Value |
|---|---|
| cik | 0002040807 |
| ticker | MTSR |
Discretionary BUY minus SELL in USD over rolling windows. Excludes compensation flow.
| Date | Type | Insider | Qty | Price | Signals |
|---|---|---|---|---|---|
| 13 Nov 2025 | OTHER | FMR LLCentity | 3,010 | — | indirect |
| 13 Nov 2025 | OTHER | FMR LLCentity | 2,230,450 | — | indirect |
| 13 Nov 2025 | OTHER | ARCH Venture Partners XII, LLCentity | 8,313,680 | — | indirect |
| 13 Nov 2025 | OTHER | ARCH Venture Partners XII, LLCentity | 18,503,128 | — | indirect |
| 13 Nov 2025 | OTHER | Marso Steven | 17,000 | — | |
| 13 Nov 2025 | OTHER | Marso Steven | 120,000 | — | deriv |
| 13 Nov 2025 | OTHER | Marso Steven | 21,279 | — | deriv |
| 13 Nov 2025 | OTHER | Marso Steven | 829,885 | — | deriv |
| 13 Nov 2025 | GRANT_AWARD | Marso Steven | 17,000 | — | deriv |
| 13 Nov 2025 | OTHER | Population Health Partners GP, LLCentity | 12,639,787 | — | indirect |
| 13 Nov 2025 | OTHER | Population Health Partners GP, LLCentity | 127,675 | — | |
| 13 Nov 2025 | OTHER | BERNS PAUL L | 957,559 | — | |
| 13 Nov 2025 | OTHER | BERNS PAUL L | 7,523,682 | — | indirect |
| 13 Nov 2025 | OTHER | BERNS PAUL L | 4,031 | — | |
| 13 Nov 2025 | OTHER | BERNS PAUL L | 8,313,680 | — | indirect |
| 13 Nov 2025 | OTHER | BERNS PAUL L | 223,430 | — | deriv |
| 13 Nov 2025 | OTHER | BERNS PAUL L | 24,188 | — | deriv |
| 13 Nov 2025 | GRANT_AWARD | BERNS PAUL L | 4,031 | — | deriv |
| 13 Nov 2025 | OTHER | Stonehouse Jon Pentity | 2,688 | — | |
| 13 Nov 2025 | GRANT_AWARD | Stonehouse Jon Pentity | 2,688 | — | deriv |
| 13 Nov 2025 | OTHER | Stonehouse Jon Pentity | 47,730 | — | deriv |
| 13 Nov 2025 | OTHER | Burow Kristina | 18,503,128 | — | indirect |
| 13 Nov 2025 | OTHER | Burow Kristina | 7,523,682 | — | indirect |
| 13 Nov 2025 | OTHER | Burow Kristina | 8,313,680 | — | indirect |
| 13 Nov 2025 | OTHER | Burow Kristina | 17,070,904 | — | indirect |