Western Standard Partners L.P., Insider at MERRIMACK PHARMACEUTICALS INC (MACK), bought 300 shares at $12.50 ($4K) on 2023-11-17, disclosed to the SEC on 2023-11-20.
Open-market purchase of $4k MACK by Insider. 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.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $12.50 | 65 | $813 | 21.7% |
| 2 | $12.50 | 235 | $3K | 78.3% |
| Total | $12.50 avg | 300 | $4K | 100% |
| Filing → |
| MACK | BUY | 2021-04-16 | $584K | — | Filing → |
| MACK | BUY | 2021-04-15 | $124K | — | Filing → |
| MACK | BUY | 2020-04-07 | $46K | — | Filing → |