William A. Sullivan serves as Executive at MERRIMACK PHARMACEUTICALS INC, where they oversee executive responsibilities. Since joining the company, William A. Sullivan has executed 19 insider transactions totaling $2.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 14, 2018 involved purchasing 3,000 shares valued at $10.0K.
William A. Sullivan currently holds 3,000 shares of MERRIMACK PHARMACEUTICALS INC (MACK), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William A. Sullivan has been a net seller of MACK stock. They have purchased $10.0K and sold $2.0M worth of shares.
William A. Sullivan's most recent insider trade was on Dec 14, 2018, when they purchased 3,000 shares at $3.33 per share.
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| $11.85 |
| Discretionary |
| Jul 15, 2015 | MACK | $9.3K | Option Exercise | 4,404 | $2.12 | Discretionary |
| Jul 15, 2015 | MACK | $22.5K | Option Exercise | 10,596 | $2.12 | Discretionary |
| Jun 15, 2015 | MACK | $159.8K | Sale | 15,000 | $10.65 | Discretionary |
| Jun 15, 2015 | MACK | $31.8K | Option Exercise | 15,000 | $2.12 | Discretionary |
| May 15, 2015 | MACK | $185.6K | Sale | 15,000 | $12.37 | Discretionary |
| May 15, 2015 | MACK | $31.8K | Option Exercise | 15,000 | $2.12 | Discretionary |
| Apr 15, 2015 | MACK | $31.8K | Option Exercise | 15,000 | $2.12 | Discretionary |
| Apr 15, 2015 | MACK | $193.1K | Sale | 15,000 | $12.87 | Discretionary |
| Mar 19, 2015 | MACK | $179.6K | Sale | 15,000 | $11.97 | Discretionary |
| Mar 19, 2015 | MACK | $31.8K | Option Exercise | 15,000 | $2.12 | Discretionary |
| Dec 24, 2014 | MACK | $160.5K | Sale | 15,000 | $10.70 | Discretionary |
| Dec 24, 2014 | MACK | $27.1K | Option Exercise | 15,000 | $1.81 | Discretionary |
| Sep 30, 2014 | MACK | $110.0K | Option Exercise | 40,878 | $2.69 | Discretionary |
| Sep 30, 2014 | MACK | $365.4K | Sale | 40,878 | $8.94 | Discretionary |
| Sep 29, 2014 | MACK | $541.0K | Sale | 64,404 | $8.40 | Discretionary |
| Sep 29, 2014 | MACK | $136.5K | Option Exercise | 64,404 | $2.12 | Discretionary |
| Dec 31, 2013 | MACK | $19.9K | Option Exercise | 11,000 | $1.81 | Discretionary |