Michael E. Porter, Director at MERRIMACK PHARMACEUTICALS INC (MACK), bought 25,000 shares at $6.27 ($159K) on 2016-03-03, disclosed to the SEC on 2016-03-04.
Open-market purchase of $159k 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 B.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $6.63 | 5,000 | $33K | 20.9% |
| 2 | $6.27 | 10,000 | $63K | 39.5% |
| 3 | $6.27 | 10,000 | $63K | 39.5% |
| Total | $6.34 avg | 25,000 | $159K | 100% |
| Filing → |
| MACK | BUY | 2016-03-10 | $71K | — | Filing → |
| MACK | BUY | 2016-03-02 | $122K | — | Filing → |
| MACK | BUY | 2015-08-25 | $49K | — | Filing → |