Janus Henderson Group plc 13D and 13G filings for Metsera, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-02-17 12:35 pm Sale | 2025-12-31 | 13G | Metsera, Inc. MTSR | JANUS HENDERSON GROUP PLC JHG | 3,242,849 3.100% | -2,109,902 (-39.42%) | Filing |
| 2025-11-14 10:29 am Purchase | 2025-09-30 | 13G | Metsera, Inc. MTSR | JANUS HENDERSON GROUP PLC JHG | 5,352,751 5.100% | 5,352,751 (New Position) | Filing |