Michael E. Porter, Director at MERRIMACK PHARMACEUTICALS INC (MACK), bought 13,000 shares at $10.65 ($137K) on 2015-08-13, disclosed to the SEC on 2015-08-17.
Open-market purchase of $137k MACK by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $10.65 | 10,000 | $107K | 77.7% |
| 2 | $10.18 | 3,000 | $31K | 22.3% |
| Total | $10.54 avg | 13,000 | $137K | 100% |
| Filing → |
| MACK | BUY | 2016-03-10 | $71K | — | Filing → |
| MACK | BUY | 2016-03-04 | $159K | — | Filing → |
| MACK | BUY | 2016-03-02 | $122K | — | Filing → |