William S. Johnson serves as Executive at CABOT MICROELECTRONICS CORP, where they oversee executive responsibilities. Since joining the company, William S. Johnson has executed 224 insider transactions totaling $27.2M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 3, 2012 involved selling 747 shares valued at $24.4K.
William S. Johnson currently holds 46,700 shares of CABOT MICROELECTRONICS CORP (CCMP), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William S. Johnson has been a net seller of CCMP stock. They have purchased $0 and sold $27.2M worth of shares.
William S. Johnson's most recent insider trade was on Dec 3, 2012, when they sold 747 shares at $32.64 per share.
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| $32.64 |
| Discretionary |
| Sep 13, 2012 | CCMP | $1.0M | Sale | 29,027 | $35.32 | Discretionary |
| Sep 13, 2012 | CCMP | $854.8K | Option Exercise | 29,027 | $29.45 | Discretionary |
| Aug 16, 2012 | CCMP | $630.2K | Option Exercise | 21,399 | $29.45 | Discretionary |
| Aug 16, 2012 | CCMP | $675.8K | Sale | 21,399 | $31.58 | Discretionary |
| Aug 15, 2012 | CCMP | $223.8K | Option Exercise | 7,601 | $29.45 | Discretionary |
| Aug 15, 2012 | CCMP | $239.6K | Sale | 7,601 | $31.52 | Discretionary |
| Dec 15, 2011 | CCMP | $12.5K | Award | 270 | $46.29 | Discretionary |
| Dec 15, 2011 | CCMP | $25.0K | Award | 540 | $46.29 | Discretionary |
| Dec 12, 2011 | CCMP | $9.0K | Payment | 224 | $40.21 | Discretionary |
| Dec 1, 2011 | CCMP | $0 | Award | 8,700 | $N/A | Discretionary |
| Dec 1, 2011 | CCMP | $30.3K | Payment | 747 | $40.52 | Discretionary |
| Dec 1, 2011 | CCMP | $27.8K | Payment | 685 | $40.52 | Discretionary |
| Dec 1, 2011 | CCMP | $34.1K | Payment | 842 | $40.52 | Discretionary |
| Nov 30, 2011 | CCMP | $30.1K | Payment | 724 | $41.57 | Discretionary |
| Dec 13, 2010 | CCMP | $5.6K | Payment | 134 | $41.62 | Discretionary |
| Dec 13, 2010 | CCMP | $25.0K | Award | 600 | $41.62 | Discretionary |
| Dec 13, 2010 | CCMP | $12.5K | Award | 300 | $41.62 | Discretionary |
| Dec 1, 2010 | CCMP | $185.7K | Option Exercise | 8,000 | $23.21 | Discretionary |
| Dec 1, 2010 | CCMP | $336.3K | Sale | 8,000 | $42.04 | Discretionary |
| Dec 1, 2010 | CCMP | $0 | Award | 8,700 | $N/A | Discretionary |
| Dec 1, 2010 | CCMP | $26.6K | Payment | 641 | $41.51 | Discretionary |
| Dec 1, 2010 | CCMP | $32.7K | Payment | 788 | $41.51 | Discretionary |
| Dec 1, 2010 | CCMP | $29.1K | Payment | 700 | $41.51 | Discretionary |
| Nov 30, 2010 | CCMP | $26.8K | Payment | 678 | $39.47 | Discretionary |
| Dec 31, 2009 | CCMP | $6.0K | Award | 204.78 | $29.30 | Discretionary |
| Dec 9, 2009 | CCMP | $12.5K | Award | 396 | $31.50 | Discretionary |
| Dec 9, 2009 | CCMP | $25.0K | Award | 793 | $31.50 | Discretionary |
| Dec 1, 2009 | CCMP | $19.9K | Payment | 641 | $31.11 | Discretionary |