Latest Period
Q4 2025
Security Snapshot
METSERA, INC. - Common Stock (MTSR) Institutional Ownership
CUSIP: 59267L107
13F Institutional Holders and Ownership History from Q1 2025 to Q1 2026
Institutions Reporting
1
Shares (Excl. Options)
8
Price
$70.50
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- Type / Class
- Equity / Common Stock
- Symbol
- MTSR
- Shares outstanding
- 104,608,032
- Price per share
- $70.75
- All holders as of 31 Dec 2025
- Q4 2025
- Total 13F shares
- 8
- Total reported value
- $564
- Share change
- -64,744,902
- Value change
- -$3,388,074,231
- Number of holders
- 1
- Price from insider filings
- $70.75
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- MTSR - METSERA, INC. - Common Stock is tracked under CUSIP 59267L107.
- 1 institution reported positions in Q4 2025.
- 3 significant owners is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 1 to 0 between Q4 2025 and Q1 2026.
- Reported value moved from $564 to $0.
Why This Matters
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 1 institution filings for Q4 2025.
Investment Quick Answers
What is CUSIP 59267L107?
CUSIP 59267L107 identifies MTSR - METSERA, INC. - Common Stock in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 59267L107:
Significant Owners of METSERA, INC. - Common Stock (MTSR) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Validae Health, L.P. | 12% | $346,544,669 | 13,136,644 | Christopher Whitten Bernard | 31 Mar 2025 | |||
| VANGUARD GROUP INC | 5.5% | $304,823,049 | 5,824,993 | The Vanguard Group | 30 Sep 2025 | |||
| JANUS HENDERSON GROUP PLC | 3.1% | -40% | $228,620,854 | -$148,748,091 | 3,242,849 | -39% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
As of 31 Dec 2025, 1 institutional investors reported holding 8 shares of METSERA, INC. - Common Stock (MTSR). This represents 0% of the company’s total 104,608,032 outstanding shares.
Institutional Holders of METSERA, INC. - Common Stock (MTSR) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 0 | $0 | -$564 | $70.75 | 0 |
| 2025 Q4 | 8 | $564 | -$3,388,074,231 | $70.50 | 1 |
| 2025 Q3 | 64,760,626 | $3,388,897,067 | +$398,027,459 | $52.33 | 153 |
| 2025 Q2 | 61,110,674 | $1,738,613,325 | +$190,248,205 | $28.45 | 107 |
| 2025 Q1 | 54,515,246 | $1,486,157,710 | +$1,485,323,689 | $27.22 | 79 |