Diederik Karsten serves as Executive at Liberty Global, Inc., where they oversee executive responsibilities. Since joining the company, Diederik Karsten has executed 187 insider transactions totaling $5.3M, demonstrating a bearish approach to their equity position. Their most recent transaction on Mar 31, 2013 involved exercising options for 13,158 shares valued at $965.5K.
Diederik Karsten currently holds 192,639 shares of Liberty Global, Inc. (LBTY), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Diederik Karsten has been a net seller of LBTY stock. They have purchased $0 and sold $5.3M worth of shares.
Diederik Karsten's most recent insider trade was on Mar 31, 2013, when they sold 13,158 shares at $73.38 per share.
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| 6,843 |
| $73.38 |
| Discretionary |
| Mar 31, 2013 | LBTY | $469.6K | Payment | 6,843 | $68.63 | Discretionary |
| Feb 1, 2013 | LBTY | $20.4K | Payment | 312 | $65.39 | Discretionary |
| Feb 1, 2013 | LBTY | $0 | Option Exercise | 600 | $N/A | Discretionary |
| Feb 1, 2013 | LBTY | $22.0K | Payment | 312 | $70.48 | Discretionary |
| Feb 1, 2013 | LBTY | $0 | Option Exercise | 600 | $N/A | Discretionary |
| Nov 1, 2012 | LBTY | $17.8K | Payment | 312 | $56.99 | Discretionary |
| Nov 1, 2012 | LBTY | $0 | Option Exercise | 600 | $N/A | Discretionary |
| Nov 1, 2012 | LBTY | $18.9K | Payment | 312 | $60.62 | Discretionary |
| Nov 1, 2012 | LBTY | $0 | Option Exercise | 600 | $N/A | Discretionary |
| Sep 30, 2012 | LBTY | $187.1K | Payment | 3,311 | $56.51 | Discretionary |
| Sep 30, 2012 | LBTY | $0 | Option Exercise | 6,367 | $N/A | Discretionary |
| Sep 30, 2012 | LBTY | $201.1K | Payment | 3,311 | $60.75 | Discretionary |
| Sep 30, 2012 | LBTY | $0 | Option Exercise | 6,367 | $N/A | Discretionary |
| Aug 1, 2012 | LBTY | $16.3K | Payment | 312 | $52.33 | Discretionary |
| Aug 1, 2012 | LBTY | $0 | Option Exercise | 600 | $N/A | Discretionary |
| Aug 1, 2012 | LBTY | $15.5K | Payment | 312 | $49.72 | Discretionary |
| Aug 1, 2012 | LBTY | $0 | Option Exercise | 600 | $N/A | Discretionary |
| May 1, 2012 | LBTY | $0 | Option Exercise | 600 | $N/A | Discretionary |
| May 1, 2012 | LBTY | $0 | Option Exercise | 382 | $N/A | Discretionary |
| May 1, 2012 | LBTY | $24.6K | Payment | 511 | $48.20 | Discretionary |
| May 1, 2012 | LBTY | $0 | Option Exercise | 600 | $N/A | Discretionary |
| May 1, 2012 | LBTY | $0 | Option Exercise | 382 | $N/A | Discretionary |
| May 1, 2012 | LBTY | $25.5K | Payment | 511 | $49.99 | Discretionary |
| Mar 31, 2012 | LBTY | $0 | Option Exercise | 6,367 | $N/A | Discretionary |
| Mar 31, 2012 | LBTY | $165.8K | Payment | 3,311 | $50.08 | Discretionary |
| Mar 31, 2012 | LBTY | $0 | Option Exercise | 6,367 | $N/A | Discretionary |
| Mar 31, 2012 | LBTY | $158.6K | Payment | 3,311 | $47.89 | Discretionary |
| Mar 22, 2012 | LBTY | $227.4K | Sale | 4,773 | $47.64 | Discretionary |