Mersana Therapeutics, Inc.
MRSNDelisted Jan 6, 2026- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001442836
Mersana Therapeutics, Inc. was delisted on Jan 6, 2026; its insiders filed their last Form 4 on Jan 6, 2026; 51 institutions reported holding it in 13F filings for Q4 2025, worth $64.8M in total; no superinvestor held it.
Q3 2025 vs. Q2 2025
How the institutions holding Mersana Therapeutics, Inc. changed between Q2 2025 and Q3 2025.
All holders in Q3 2025All holders in Q2 2025
| Measure | Q2 2025 | Q3 2025 | Change |
|---|---|---|---|
| Holders | 85 | 49 | −36 |
| SharesConverted for a 1-for-25 split | 3.10M | 3.18M | +87.6K (+2.8%) |
| Value | $22.9M | $24.7M | +$1.77M (+7.7%) |
New holders (5)
Institutions that held Mersana Therapeutics, Inc. at the end of Q3 2025 but not at the end of Q2 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Mackenzie Financial Corp | 47,819 | $371.1K | 0.00% |
| DRW Securities, LLC | 13,851 | $107.5K | 0.01% |
| Voleon Capital Management LP | 13,200 | $102.4K | 0.00% |
| SRS Capital Advisors, Inc. | 157 | $1.22K | 0.00% |
| Danske Bank A/S | 1 | $8 | 0.00% |
Sold out (41)
Institutions that held Mersana Therapeutics, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.