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 2024 vs. Q2 2024
How the institutions holding Mersana Therapeutics, Inc. changed between Q2 2024 and Q3 2024.
All holders in Q3 2024All holders in Q2 2024
| Measure | Q2 2024 | Of which not filed for Q3 2024 | Q3 2024 | Change |
|---|---|---|---|---|
| Holders | 122 | 2 | 116 | −4 |
| Shares | 114.2M | 8.69M | 116.1M | +10.6M (+10.0%) |
| Value | $229.6M | $17.5M | $219.4M | +$7.36M (+3.5%) |
2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so the changes leave them out.
New holders (13)
Institutions that held Mersana Therapeutics, Inc. at the end of Q3 2024 but not at the end of Q2 2024.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| BlackRock, Inc. | 8,621,861 | $16.3M | 0.00% |
| Boxer Capital, LLC | 1,817,000 | $3.43M | 0.17% |
| Exome Asset Management LLC | 1,178,570 | $2.23M | 1.51% |
| Balyasny Asset Management LLC | 535,819 | $1.01M | 0.00% |
| Prelude Capital Management, LLC | 364,727 | $689.3K | 0.05% |
| 683 Capital Management, LLC | 182,793 | $345.5K | 0.04% |
| Quarry LP | 30,000 | $56.7K | 0.02% |
| Intech Investment Management LLC | 27,342 | $51.7K | 0.00% |
| Dynamic Technology Lab Private Ltd | 18,095 | $34.0K | 0.00% |
| US Bancorp | 16,178 | $30.6K | 0.00% |
| Sterling Capital Management LLC | 234 | $442 | 0.00% |
| Jones Financial Companies LLLP | 200 | $370 | 0.00% |
| Capital Performance Advisors LLP | 11 | $21 | 0.00% |
Sold out (17)
Institutions that held Mersana Therapeutics, Inc. at the end of Q2 2024 and filed for Q3 2024 without it.
| Institution | Shares, Q2 2024 | Value, Q2 2024 |
|---|---|---|
| Cormorant Asset Management, LP | 2,600,000 | $5.23M |
| Affinity Asset Advisors, LLC | 767,000 | $1.54M |
| Bridgeway Capital Management, LLC | 475,500 | $955.8K |
| HRT Financial LP | 259,689 | $521.0K |
| Marshall Wace, LLP | 176,029 | $353.8K |
| Superstring Capital Management LP | 110,073 | $221.2K |
| ExodusPoint Capital Management, LP | 107,174 | $215.0K |
| State of Wisconsin Investment Board | 83,600 | $168.0K |
| Jump Financial, LLC | 80,562 | $161.9K |
| Aigen Investment Management, LP | 50,083 | $100.7K |
| Y-Intercept (Hong Kong) Ltd | 46,779 | $94.0K |
| AJOVista, LLC | 20,463 | $41.1K |
| Principal Financial Group Inc | 18,278 | $36.7K |
| Prudential Financial Inc | 17,335 | $34.8K |
| Dimensional Fund Advisors LP | 13,703 | $27.5K |
| State of Wyoming | 9,158 | $18.4K |
| Optiver Holding B.V. | 1,586 | $3.19K |
Not filed for Q3 2024 yet (2)
Institutions that held Mersana Therapeutics, Inc. at the end of Q2 2024 and haven't filed a 13F for Q3 2024. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q2 2024 | Value, Q2 2024 |
|---|---|---|
| BlackRock Inc. | 8,383,910 | $16.9M |
| Susquehanna Fundamental Investments, LLC | 308,691 | $620.5K |