William Hammack serves as Executive at KOMAG INC /DE/, where they oversee executive responsibilities. Since joining the company, William Hammack has executed 27 insider transactions totaling $548.9K, demonstrating a bearish approach to their equity position. Their most recent transaction on Sep 5, 2007 involved selling 13,894 shares valued at $448.1K.
William Hammack currently holds 13,894 shares of KOMAG INC /DE/ (KOMG), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William Hammack has been a net seller of KOMG stock. They have purchased $0 and sold $548.9K worth of shares.
William Hammack's most recent insider trade was on Sep 5, 2007, when they sold 13,894 shares at $32.25 per share.
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| $32.25 |
| Discretionary |
| Apr 27, 2007 | KOMG | $19.9K | Payment | 714 | $27.91 | Discretionary |
| Mar 9, 2007 | KOMG | $82.1K | Sale | 2,571 | $31.95 | Discretionary |
| Mar 9, 2007 | KOMG | $0 | Option Exercise | 3,894 | $N/A | Discretionary |
| Feb 15, 2007 | KOMG | $45.9K | Payment | 1,429 | $32.10 | Discretionary |
| Oct 31, 2006 | KOMG | $32.6K | Sale | 859 | $37.99 | Discretionary |
| Oct 31, 2006 | KOMG | $2.7K | Option Exercise | 417 | $6.48 | Discretionary |
| Oct 31, 2006 | KOMG | $2.7K | Option Exercise | 208 | $13.16 | Discretionary |
| Oct 31, 2006 | KOMG | $4.4K | Option Exercise | 234 | $18.85 | Discretionary |
| Aug 14, 2006 | KOMG | $1.9K | Sale | 53 | $36.55 | Discretionary |
| Aug 14, 2006 | KOMG | $38.0K | Sale | 1,041 | $36.50 | Discretionary |
| Aug 14, 2006 | KOMG | $4.0K | Option Exercise | 625 | $6.48 | Discretionary |
| Aug 14, 2006 | KOMG | $4.1K | Option Exercise | 313 | $13.16 | Discretionary |
| Aug 14, 2006 | KOMG | $2.9K | Option Exercise | 156 | $18.85 | Discretionary |
| May 23, 2006 | KOMG | $4.4K | Option Exercise | 235 | $18.85 | Discretionary |
| May 23, 2006 | KOMG | $2.7K | Option Exercise | 208 | $13.16 | Discretionary |
| May 23, 2006 | KOMG | $38.2K | Sale | 859 | $44.42 | Discretionary |
| May 23, 2006 | KOMG | $2.7K | Option Exercise | 416 | $6.48 | Discretionary |
| May 19, 2006 | KOMG | $56.7K | Sale | 1,286 | $44.09 | Discretionary |
| Apr 27, 2006 | KOMG | $30.7K | Payment | 714 | $42.99 | Discretionary |
| Mar 13, 2006 | KOMG | $0 | Option Exercise | 12,000 | $N/A | Discretionary |
| Mar 10, 2006 | KOMG | $82.5K | Sale | 1,700 | $48.55 | Discretionary |
| Mar 10, 2006 | KOMG | $18.9K | Option Exercise | 2,917 | $6.48 | Discretionary |
| Mar 10, 2006 | KOMG | $19.2K | Option Exercise | 1,458 | $13.16 | Discretionary |
| Mar 10, 2006 | KOMG | $33.9K | Option Exercise | 1,797 | $18.85 | Discretionary |
| Mar 10, 2006 | KOMG | $216.8K | Sale | 4,472 | $48.47 | Discretionary |