Robert A. Klosterboer serves as Executive at ON SEMICONDUCTOR CORP, where they oversee executive responsibilities. Since joining the company, Robert A. Klosterboer has executed 155 insider transactions totaling $6.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Apr 7, 2011 involved selling 1,967 shares valued at $19.2K.
Robert A. Klosterboer currently holds 363,030 shares of ON SEMICONDUCTOR CORP (ONNN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Robert A. Klosterboer has been a net seller of ONNN stock. They have purchased $0 and sold $6.6M worth of shares.
Robert A. Klosterboer's most recent insider trade was on Apr 7, 2011, when they sold 1,967 shares at $9.77 per share.
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| $10.16 |
| Discretionary |
| Feb 24, 2011 | ONNN | $166.5K | Award | 15,000 | $11.10 | Discretionary |
| Feb 24, 2011 | ONNN | $52.5K | Payment | 4,734 | $11.10 | Discretionary |
| Feb 24, 2011 | ONNN | $72.3K | Payment | 6,516 | $11.10 | Discretionary |
| Feb 24, 2011 | ONNN | $229.2K | Award | 20,650 | $11.10 | Discretionary |
| Feb 10, 2011 | ONNN | $205.3K | Sale | 18,332 | $11.20 | Discretionary |
| Feb 10, 2011 | ONNN | $10.6K | Sale | 943 | $11.20 | Discretionary |
| Feb 10, 2011 | ONNN | $63.2K | Option Exercise | 18,332 | $3.45 | Discretionary |
| Feb 7, 2011 | ONNN | $69.0K | Option Exercise | 20,000 | $3.45 | Discretionary |
| Feb 7, 2011 | ONNN | $103.2K | Option Exercise | 10,000 | $10.32 | Discretionary |
| Feb 7, 2011 | ONNN | $351.9K | Sale | 30,000 | $11.73 | Discretionary |
| Jan 13, 2011 | ONNN | $46.3K | Sale | 4,030 | $11.50 | Discretionary |
| Dec 1, 2010 | ONNN | $127.0K | Sale | 15,000 | $8.47 | Discretionary |
| Dec 1, 2010 | ONNN | $112.8K | Sale | 12,982 | $8.69 | Discretionary |
| Dec 1, 2010 | ONNN | $8.8K | Option Exercise | 12,982 | $0.68 | Discretionary |
| Dec 1, 2010 | ONNN | $10.2K | Option Exercise | 15,000 | $0.68 | Discretionary |
| Nov 4, 2010 | ONNN | $52.2K | Payment | 6,516 | $8.01 | Discretionary |
| Nov 4, 2010 | ONNN | $165.4K | Award | 20,650 | $8.01 | Discretionary |
| Nov 3, 2010 | ONNN | $68.8K | Award | 8,750 | $7.86 | Discretionary |
| Nov 3, 2010 | ONNN | $21.7K | Payment | 2,761 | $7.86 | Discretionary |
| Aug 5, 2010 | ONNN | $138.1K | Award | 20,650 | $6.69 | Discretionary |
| Aug 5, 2010 | ONNN | $43.6K | Payment | 6,516 | $6.69 | Discretionary |
| Jul 26, 2010 | ONNN | $6.7K | Payment | 908 | $7.42 | Discretionary |
| May 12, 2010 | ONNN | $23.9K | Sale | 3,000 | $7.95 | Discretionary |
| May 10, 2010 | ONNN | $23.4K | Sale | 3,000 | $7.79 | Discretionary |
| May 7, 2010 | ONNN | $21.8K | Sale | 3,000 | $7.25 | Discretionary |
| May 5, 2010 | ONNN | $50.5K | Payment | 6,510 | $7.75 | Discretionary |
| May 5, 2010 | ONNN | $160.0K | Award | 20,650 | $7.75 | Discretionary |
| Mar 2, 2010 | ONNN | $62.3K | Sale | 7,500 | $8.31 | Discretionary |