Mersana Therapeutics, Inc. - MRSN
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 4
Latest filed: May 15, 2026
| Form | Count |
|---|---|
| SCHEDULE 13G/A | 4 |