Schedule 13G ownership disclosure
MERSANA THERAPEUTICS INC
Common Stock, par value $0.0001 per share · CUSIP: 59045L205
Event date: 2025-11-17
Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.
- Filing-level shares
- Unavailable
- Percent of class
- Unavailable
- 683 Capital Management, LLC
Shares: 273,420 · Class: 5.47%
- 683 Capital Partners, LP
Shares: 273,420 · Class: 5.47%
- Ari Zweiman
Shares: 273,420 · Class: 5.47%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0001404574-25-000007
- Form type
- SCHEDULE 13G
- Filer
- 683 Capital Management, LLC
- CIK
- CIK 1404574
- Filed
- Nov 24, 2025
- Reporting period
- Nov 17, 2025
- Description
- Schedule 13G beneficial ownership