Andrew A. F. Hack, Director at Mersana Therapeutics, Inc. (MRSN), bought 696,560 shares at $3.35 ($2.3M) on 2022-05-18, disclosed to the SEC on 2022-05-18.
Open-market purchase of $2.3M MRSN by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade D.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $3.10 | 135,292 | $419K | 18.5% |
| 2 | $3.10 | 135,292 | $419K | 18.5% |
| 3 | $3.18 | 3,440 | $11K | 0.5% |
| 4 | $3.35 | 211,268 | $708K | 31.2% |
| 5 | $3.35 | 211,268 | $708K | 31.2% |
| Total | $3.25 avg | 696,560 |
| $2.3M |
| 100% |
| Filing → |
| DVAX | SELL | 2023-08-10 | $21.6M | — | Filing → |
| DVAX | SELL | 2023-06-16 | $6.3M | — | Filing → |
| DVAX | SELL | 2023-05-19 | $10.6M | — | Filing → |