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.
Key figures
- Insider buys
- 0
- Open market, last 90 days
- Insider sells
- 0
- Open market, last 90 days
- 13F holders
- 155
- Q3 2025, +46 vs. previous quarter
- 13F value
- $3.39B
- Reported value at the end of Q3 2025
- Superinvestors holding
- 0
- At the end of Q3 2025
Superinvestors holding MTSR, Q3 2025
No superinvestor reported holding MTSR at the end of Q3 2025.
Latest insider trades
Open-market purchases and sales by Metsera, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 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 |
| 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 |
| 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) | Feb 3 | Same day | Berns Paul LDirector | PPurchase | +790.0K | $18.00 | +$14.2M | +10.5%8.31M after |
Top 10 13F holders, Q3 2025
The largest institutional positions in Metsera, Inc. at the end of Q3 2025; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 13,891,986 | $727.0M | 0.04% | −1,866,344−11.8% | Reduced |
| Vanguard Group Inc | 5,824,993 | $304.8M | 0.00% | +4,333,514+290.6% | Added |
| Janus Henderson Group PLC | 5,352,751 | $280.1M | 0.13% | +1,964,788+58.0% | Added |
| BlackRock, Inc. | 3,835,309 | $200.7M | 0.00% | +2,598,184+210.0% | Added |
| Alphabet Inc. | 3,783,528 | $198.0M | 8.22% | −1,178,216−23.7% | Reduced |
| VR Adviser, LLC | 3,750,662 | $196.3M | 11.05% | 00.0% | Unchanged |
| Wellington Management Group LLP | 3,659,465 | $191.5M | 0.03% | +232,033+6.8% | Added |
| Softbank Group Corp | 3,654,691 | $191.2M | 0.74% | −1,165,193−24.2% | Reduced |
| HBK Investments L P | 3,200,000 | $167.5M | 2.47% | +3,200,000 | New |
| State Street Corp | 2,511,076 | $131.4M | 0.00% | +1,910,873+318.4% | Added |
Holders of 5% or more of MTSR
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Metsera, Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Validae Health, L.P. | 13G | 12.50%13.1M shares | New | Jun 3, 20251 filing | Jun 3, 2025 | SEC |
| Vanguard Group Inc | 13G | 5.53%5.82M shares | New | Oct 31, 20251 filing | Oct 31, 2025 | SEC |