MTSR Insider Trading Activity and SEC Form 4 Filings
MTSR insider trading summary
No open-market insider purchases or sales of Metsera, Inc. (MTSR) have been reported on SEC Form 4 in the past 12 months.
Latest MTSR insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Nov 3, 2025 | FMR LLC | Insider | Sell | $12K (193 @ $61.23) |
| Sep 2, 2025 | FMR LLC | Insider | Sell | $10K (268 @ $36.00) |
| Feb 3, 2025 | ARCH Venture Fund XIII, L.P. | Insider | Buy | $14.2M (789,998 @ $18.00) |
| Feb 3, 2025 | ARCH Venture Fund XII, L.P. | Insider | Buy | $25.8M (1,432,224 @ $18.00) |
| Feb 3, 2025 | ARCH Venture Partners XII, L.P. | Insider | Buy | $25.8M (1,432,224 @ $18.00) |
| Feb 3, 2025 | ARCH Venture Partners XIII, L.P. | Insider | Buy | $25.8M (1,432,224 @ $18.00) |
| Feb 3, 2025 | ARCH Venture Partners XIII, LLC | Insider | Buy | $25.8M (1,432,224 @ $18.00) |
| Feb 3, 2025 | Steven Gillis | Insider | Buy | $25.8M (1,432,224 @ $18.00) |
| Feb 3, 2025 | ARCH Venture Fund XII, L.P. | Insider | Buy | $14.2M (789,998 @ $18.00) |
| Feb 3, 2025 | ARCH Venture Partners XII, LLC | Insider | Buy | $25.8M (1,432,224 @ $18.00) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.