🕵️ Metsera, Inc. ($MTSR)
SEC insider & ownership activity, last 12 months · CIK 2040807 · every row links its SEC filing
Over the last 12 months insiders sold $21K with no open-market buying against it. FMR LLC sold $21K in discretionary trades (Sep–Nov). One red-flag 8-K in the window: Delisting notice (3.01), Nov 12, 2025.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 1 seller, $21K (2 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| FMR LLC | 0 | – | 2 | $21K | Nov 3, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Validae Health, L.P. | 12.2% | 13G | Jun 3, 2025 | filing ↗ | |
| The Vanguard Group | 5.5% | 13G | Oct 31, 2025 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Acquisition or disposition (2.01) | Nov 12, 2025 | filing ↗ |
| Delisting notice (3.01) | Nov 12, 2025 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Nov 12, 2025 | filing ↗ |
| Change of control (5.01) | Nov 12, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 12, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Nov 12, 2025 | filing ↗ |
| Shareholder vote (5.07) | Nov 12, 2025 | filing ↗ |
| Other events (8.01) | Nov 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 12, 2025 | filing ↗ |
| Material agreement (1.01) | Nov 7, 2025 | filing ↗ |
| Other events (8.01) | Nov 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 7, 2025 | filing ↗ |
| Other events (8.01) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |
| Other events (8.01) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |
| Other events (8.01) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |
| Other events (8.01) | Oct 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 31, 2025 | filing ↗ |
| Other events (8.01) | Oct 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 29, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 29, 2025 | filing ↗ |
| Other events (8.01) | Sep 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 29, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 21, 2025 | filing ↗ |
| Officer/director changes (5.02) | Sep 21, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 21, 2025 | filing ↗ |
| Other events (8.01) | Sep 21, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 21, 2025 | filing ↗ |