Western Standard LLC, Director at MERRIMACK PHARMACEUTICALS INC (MACK), bought 45,431 shares at $12.19 ($552K) on 2023-11-09, disclosed to the SEC on 2023-11-13.
Open-market purchase of $552k MACK 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 C.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $12.13 | 4,783 | $58K | 10.5% |
| 2 | $12.13 | 4,783 | $58K | 10.5% |
| 3 | $12.13 | 9,040 | $110K | 19.9% |
| 4 | $12.13 | 9,040 | $110K | 19.9% |
| 5 | $12.19 | 2,165 | $26K | 4.8% |
| 6 | $12.19 | 7,810 |
| $95K |
| 17.2% |
| 7 | $12.19 | 7,810 | $95K | 17.2% |
| Total | $12.15 avg | 45,431 | $552K | 100% |
| Filing → |
| MACK | BUY | 2023-01-04 | $694K | — | Filing → |
| MACK | BUY | 2023-01-03 | $5.5M | — | Filing → |
| MACK | BUY | 2020-11-27 | $504K | — | Filing → |