MERSANA THERAPEUTICS INC's ticker is MRSN and the CUSIP is 59045L106. A total of 157 filers reported holding MERSANA THERAPEUTICS INC in Q1 2023. The put-call ratio across all filers is 0.08 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $5 | +25.0% | 30,000 | +2400.0% | 0.00% | – |
| Q1 2023 | $4 | -42.9% | 1,200 | 0.0% | 0.00% | -100.0% |
| Q4 2022 | $7 | -99.9% | 1,200 | 0.0% | 0.00% | 0.0% |
| Q3 2022 | $8,000 | +60.0% | 1,200 | -7.7% | 0.00% | – |
| Q2 2022 | $5,000 | +25.0% | 1,300 | 0.0% | 0.00% | – |
| Q1 2022 | $4,000 | -42.9% | 1,300 | +8.3% | 0.00% | – |
| Q4 2021 | $7,000 | -36.4% | 1,200 | 0.0% | 0.00% | – |
| Q3 2021 | $11,000 | -91.9% | 1,200 | -90.2% | 0.00% | -100.0% |
| Q2 2021 | $135,000 | +27.4% | 12,200 | +19.6% | 0.01% | +40.0% |
| Q1 2021 | $106,000 | +307.7% | 10,200 | -50.7% | 0.01% | +400.0% |
| Q4 2020 | $26,000 | +13.0% | 20,700 | +404.9% | 0.00% | 0.0% |
| Q3 2020 | $23,000 | -52.1% | 4,100 | -72.1% | 0.00% | -66.7% |
| Q2 2020 | $48,000 | +4700.0% | 14,700 | +7250.0% | 0.00% | – |
| Q1 2020 | $1,000 | – | 200 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Sarissa Capital Management LP | 4,005,600 | $64,810,000 | 6.21% |
| Bain Capital Life Sciences Investors, LLC | 3,695,667 | $59,796,000 | 3.39% |
| COMMODORE CAPITAL LP | 429,228 | $6,945,000 | 2.77% |
| ACUTA CAPITAL PARTNERS, LLC | 357,689 | $5,787,000 | 2.09% |
| Avoro Capital Advisors LLC | 6,800,000 | $110,024,000 | 1.90% |
| Ghost Tree Capital, LLC | 450,000 | $7,281,000 | 1.71% |
| RHO CAPITAL PARTNERS INC | 796,458 | $12,887,000 | 1.24% |
| Rock Springs Capital Management LP | 2,775,127 | $44,902,000 | 0.98% |
| Sio Capital Management, LLC | 157,259 | $2,544,000 | 0.52% |
| Bellevue Group AG | 2,850,010 | $46,113,000 | 0.49% |