EC
EcoR1 Capital’s Mersana Therapeutics MRSN Stock Holding History
| Quarter | Market Value | Status | Shares |
Shares Change % | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q1 | – | Sell |
-11,328,000
| Closed | -$16.2M | – | 56 |
|
|
2024
Q4 | $16.2M | Sell |
11,328,000
-8,036,688
| -42% | -$11.5M | 0.61% | 30 |
|
|
2024
Q3 | $36.6M | Hold |
19,364,688
| – | – | 1.25% | 20 |
|
|
2024
Q2 | $38.9M | Hold |
19,364,688
| – | – | 1.19% | 22 |
|
|
2024
Q1 | $86.8M | Hold |
19,364,688
| – | – | 2.19% | 16 |
|
|
2023
Q4 | $44.9M | Hold |
19,364,688
| – | – | 1.17% | 16 |
|
|
2023
Q3 | $24.6M | Buy |
+19,364,688
| New | +$24.6M | 0.83% | 23 |
|
|
2022
Q3 | – | Sell |
-310,960
| Closed | -$1.44M | – | 82 |
|
|
2022
Q2 | $1.44M | Sell |
310,960
-15,618
| -5% | -$72.2K | 0.05% | 64 |
|
|
2022
Q1 | $1.3M | Buy |
+326,578
| New | +$1.3M | 0.04% | 73 |
|
|
2019
Q3 | – | Sell |
-1,392,231
| Closed | -$5.64M | – | 39 |
|
|
2019
Q2 | $5.64M | Sell |
1,392,231
-907,769
| -39% | -$3.68M | 0.57% | 25 |
|
|
2019
Q1 | $12.1M | Buy |
+2,300,000
| New | +$12.1M | 1.12% | 20 |
|
|
2018
Q4 | – | Sell |
-495,618
| Closed | -$4.96M | – | 50 |
|
|
2018
Q3 | $4.96M | Buy |
+495,618
| New | +$4.96M | 0.45% | 28 |
|