MERSANA THERAPEUTICS INC's ticker is MRSN and the CUSIP is 59045L106. A total of 137 filers reported holding MERSANA THERAPEUTICS INC in Q1 2021. The put-call ratio across all filers is 0.90 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1 | 0.0% | 401 | 0.0% | 0.00% | – |
| Q2 2023 | $1 | -50.0% | 401 | 0.0% | 0.00% | – |
| Q1 2023 | $2 | 0.0% | 401 | 0.0% | 0.00% | – |
| Q4 2022 | $2 | -99.9% | 401 | +63.0% | 0.00% | – |
| Q3 2022 | $2,000 | +100.0% | 246 | 0.0% | 0.00% | – |
| Q2 2022 | $1,000 | 0.0% | 246 | 0.0% | 0.00% | – |
| Q1 2022 | $1,000 | -50.0% | 246 | 0.0% | 0.00% | – |
| Q4 2021 | $2,000 | 0.0% | 246 | 0.0% | 0.00% | – |
| Q3 2021 | $2,000 | 0.0% | 246 | +90.7% | 0.00% | – |
| Q2 2021 | $2,000 | 0.0% | 129 | 0.0% | 0.00% | – |
| Q1 2021 | $2,000 | -33.3% | 129 | 0.0% | 0.00% | – |
| Q4 2020 | $3,000 | +200.0% | 129 | +2.4% | 0.00% | – |
| Q3 2018 | $1,000 | -50.0% | 126 | 0.0% | 0.00% | – |
| Q2 2018 | $2,000 | 0.0% | 126 | 0.0% | 0.00% | – |
| Q1 2018 | $2,000 | – | 126 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| RHO CAPITAL PARTNERS INC | 796,458 | $4,564,000 | 3.47% |
| NEA Management Company, LLC | 11,963,649 | $68,552,000 | 3.24% |
| Sarissa Capital Management LP | 3,750,000 | $21,487,000 | 1.78% |
| VHCP Management III, LLC | 1,561,389 | $8,947,000 | 1.78% |
| VHCP Management II, LLC | 922,514 | $5,286,000 | 1.39% |
| Ghost Tree Capital, LLC | 800,000 | $4,584,000 | 0.87% |
| BVF INC/IL | 1,180,553 | $6,765,000 | 0.51% |
| Sio Capital Management, LLC | 166,250 | $953,000 | 0.23% |
| Rock Springs Capital Management LP | 1,233,000 | $7,065,000 | 0.22% |
| DAFNA Capital Management LLC | 108,463 | $621,000 | 0.21% |