683 Capital Management, LLC - 29 Dec 2025 SCHEDULE 13G Report for Mereo BioPharma Group plc American Depositary Shares, each representing five ordinary shares, nominal value of 0.003 GBP per share (MREO)
- Filing Manager
- 683 Capital Management, LLC
- Reporting Manager
- 683 Capital Management, LLC
- Symbol
- MREO
- Shares outstanding
- 795,645,660 shares
- Disclosed Ownership
- 65,083,815 shares
- Ownership
- 8.2%
- Form type
- SCHEDULE 13G
- Filing time
- 06 Jan 2026, 17:38:48 UTC
- Date of event
- 29 Dec 2025
- SEC
- View on sec.gov
Reporting Managers (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| 683 Capital Management, LLC | 8.2% | 65,083,815 | 0 | 65,083,815 | Ari Zweiman | Managing Member | |
| 683 Capital Partners, LP | 8.2% | 65,083,815 | 0 | 65,083,815 | Ari Zweiman | Authorized Person | |
| Ari Zweiman | 8.2% | 65,083,815 | 0 | 65,083,815 | Ari Zweiman | Self |