Metsera, Inc.
MTSRDelisted Nov 13, 2025- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0002040807
Metsera, Inc. was delisted on Nov 13, 2025; its insiders filed their last Form 4 on Nov 17, 2025; 155 institutions reported holding it in 13F filings for Q3 2025, worth $3.39B in total; no superinvestor held it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Metsera, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Metsera, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| FMR LLC | 10% Owner, Other: See Remark 1 | 0Indirect | Nov 17, 2025 | 4 |
| Crandell Keith | Director, 10% Owner | 0Indirect | Nov 14, 2025 | 1 |
| Nelsen Robert | Director, 10% Owner | 0Indirect | Nov 14, 2025 | 1 |
| Gillis Steven | Director, 10% Owner | 0Indirect | Nov 14, 2025 | 1 |
| ARCH Venture Fund XII, L.P. | Director, 10% Owner | 0Indirect | Nov 14, 2025 | 1 |
| ARCH Venture Partners XII, LLC | Director, 10% Owner | 0Indirect | Nov 14, 2025 | 1 |
| ARCH Venture Partners XII, L.P. | Director, 10% Owner | 0Indirect | Nov 14, 2025 | 1 |
| ARCH Venture Fund XIII, L.P. | Director, 10% Owner | 0Indirect | Nov 14, 2025 | 1 |
| ARCH Venture Partners XIII, LLC | Director, 10% Owner | 0Indirect | Nov 14, 2025 | 1 |
| ARCH Venture Partners XIII, L.P. | Director, 10% Owner | 0Indirect | Nov 14, 2025 | 1 |
| Berns Paul L | Director | 0 | Nov 13, 2025 | 1 |
| Meanwell Clive | EXECUTIVE CHAIRMAN | 0Indirect | Nov 13, 2025 | 1 |
| Stonehouse Jon P | Director | 0 | Nov 13, 2025 | 1 |
| Burow Kristina | Director | 0Indirect | Nov 13, 2025 | 1 |
| Lang Matthew | CHIEF LEGAL OFFICER | 0 | Nov 13, 2025 | 1 |
| Visioli Christopher | CHIEF FINANCIAL OFFICER | 0 | Nov 13, 2025 | 1 |
| Pinto Joshua | Director | 0 | Nov 13, 2025 | 1 |
| Marso Steven | CHIEF MEDICAL OFFICER | 0 | Nov 13, 2025 | 1 |
| Bernard Christopher Whitten | See Remarks | 0Indirect | Nov 13, 2025 | 1 |
| Hubbard Brian | CHIEF SCIENTIFIC OFFICER | 0 | Nov 13, 2025 | 1 |
| Validae Health, L.P. | 10% Owner | 0 | Nov 13, 2025 | 1 |
| Population Health Partners GP, LLC | 10% Owner | 0Indirect | Nov 13, 2025 | 1 |
| Wellington Biomedical Innovation Master Investors (Cayman) II L.P. | 10% Owner | 1,857,699 | Feb 3, 2025 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 3, 2025 (view filing) | Feb 3 | Same day | Berns Paul LDirector | PPurchase | +790.0K | $18.00 | +$14.2M | +10.5%8.31M after | |
| Feb 3, 2025 (view filing) | Feb 3 | Same day | Burow KristinaDirector, 10% Owner | PPurchase | +2.22M | $18.00 | +$40.0M | +36.5%8.31M after | 2 lots |
| Feb 3, 2025 (view filing)7:01 PM ET | Feb 3 | Same day | Crandell Keith and 8 others10% Owner | PPurchase | +2.22M | $18.00 | +$40.0M | +36.5%8.31M after | 2 lotsDuplicate filing |
| Sep 4, 2025 (view filing) | Sep 2 | 2 days | FMR LLC10% Owner, Other: See Remark 1 | SSale | −268 | $36.00 | −$9.65K | −100.0%0 after | From original |
| Nov 5, 2025 (view filing) | Nov 3 | 2 days | FMR LLC10% Owner, Other: See Remark 1 | SSale | −193 | $61.23 | −$11.8K | 0.0%2.36M after |