MERSANA THERAPEUTICS INC's ticker is MRSN and the CUSIP is 59045L106. A total of 113 filers reported holding MERSANA THERAPEUTICS INC in Q3 2021. The put-call ratio across all filers is 1.35 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2021 | $195,000 | -28.8% | 21,000 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $274,000 | -16.0% | 21,000 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $326,000 | -42.6% | 21,000 | 0.0% | 0.00% | -50.0% |
| Q4 2020 | $568,000 | +82.1% | 21,000 | +7.1% | 0.00% | 0.0% |
| Q1 2018 | $312,000 | -32.3% | 19,600 | -34.7% | 0.00% | -50.0% |
| Q4 2017 | $461,000 | 0.0% | 30,000 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $461,000 | -31.8% | 30,000 | -40.0% | 0.00% | -20.0% |
| Q2 2017 | $676,000 | – | 50,000 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| RHO CAPITAL PARTNERS INC | 818,033 | $14,144,000 | 22.27% |
| ProQuest Associates IV LLC | 955,709 | $16,524,000 | 16.55% |
| NEA Management Company, LLC | 8,144,267 | $140,814,000 | 4.93% |
| Rock Springs Capital Management LP | 1,330,000 | $22,996,000 | 1.06% |
| Cormorant Asset Management, LP | 295,549 | $5,110,000 | 0.90% |
| ArrowMark Colorado Holdings LLC | 477,711 | $8,260,000 | 0.09% |
| Spark Investment Management LLC | 18,688 | $323,000 | 0.02% |
| WELLINGTON MANAGEMENT GROUP LLP | 2,391,404 | $41,348,000 | 0.01% |
| TUDOR INVESTMENT CORP ET AL | 20,000 | $346,000 | 0.01% |
| Laurion Capital Management LP | 50,000 | $865,000 | 0.00% |