Michael E. Porter, Director at MERRIMACK PHARMACEUTICALS INC (MACK), bought 20,000 shares at $6.60 ($122K) on 2016-03-01, disclosed to the SEC on 2016-03-02.
Open-market purchase of $122k 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 | $5.61 | 10,000 | $56K | 45.9% |
| 2 | $6.60 | 10,000 | $66K | 54.1% |
| Total | $6.11 avg | 20,000 | $122K | 100% |
| Filing → |
| MACK | BUY | 2016-03-10 | $71K | — | Filing → |
| MACK | BUY | 2016-03-04 | $159K | — | Filing → |
| MACK | BUY | 2015-08-25 | $49K | — | Filing → |