Gregg L. Bienstock serves as Executive at AMBAC FINANCIAL GROUP INC, where they oversee executive responsibilities. Since joining the company, Gregg L. Bienstock has executed 86 insider transactions totaling $2.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 18, 2006 involved selling 1,000 shares valued at $90.1K.
Gregg L. Bienstock currently holds 53,039 shares of AMBAC FINANCIAL GROUP INC (ABK), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Gregg L. Bienstock has been a net seller of ABK stock. They have purchased $49.0K and sold $2.5M worth of shares.
Gregg L. Bienstock's most recent insider trade was on Dec 18, 2006, when they sold 1,000 shares at $90.08 per share.
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| $90.07 |
| Discretionary |
| Dec 18, 2006 | ABK | $45.0K | Sale | 500 | $90.06 | Discretionary |
| Dec 18, 2006 | ABK | $72.0K | Sale | 800 | $90.05 | Discretionary |
| Dec 18, 2006 | ABK | $99.2K | Sale | 1,100 | $90.20 | Discretionary |
| Dec 6, 2006 | ABK | $1.1K | Small Acquisition | 13 | $85.41 | Discretionary |
| Dec 6, 2006 | ABK | $4.5K | Award | 53 | $85.43 | Discretionary |
| Sep 6, 2006 | ABK | $1.1K | Small Acquisition | 13 | $86.82 | Discretionary |
| Sep 6, 2006 | ABK | $4.5K | Award | 53 | $85.00 | Discretionary |
| Aug 30, 2006 | ABK | $486.6K | Option Exercise | 10,000 | $48.66 | Discretionary |
| Aug 30, 2006 | ABK | $17.4K | Sale | 200 | $87.24 | Discretionary |
| Aug 30, 2006 | ABK | $8.7K | Sale | 100 | $87.19 | Discretionary |
| Aug 30, 2006 | ABK | $514.5K | Sale | 5,900 | $87.20 | Discretionary |
| Aug 30, 2006 | ABK | $165.7K | Sale | 1,900 | $87.21 | Discretionary |
| Aug 30, 2006 | ABK | $87.2K | Sale | 1,000 | $87.22 | Discretionary |
| Aug 30, 2006 | ABK | $78.5K | Sale | 900 | $87.23 | Discretionary |
| Jun 7, 2006 | ABK | $972 | Small Acquisition | 12 | $80.99 | Discretionary |
| Jun 7, 2006 | ABK | $3.7K | Award | 47 | $79.28 | Discretionary |
| Mar 20, 2006 | ABK | $32.6K | Sale | 400 | $81.55 | Discretionary |
| Mar 20, 2006 | ABK | $154.7K | Option Exercise | 2,342 | $66.06 | Discretionary |
| Mar 20, 2006 | ABK | $163.0K | Sale | 2,000 | $81.50 | Discretionary |
| Mar 20, 2006 | ABK | $122.3K | Sale | 1,500 | $81.52 | Discretionary |
| Mar 20, 2006 | ABK | $64.7K | Sale | 793 | $81.54 | Discretionary |
| Mar 20, 2006 | ABK | $179.3K | Sale | 2,200 | $81.51 | Discretionary |
| Mar 20, 2006 | ABK | $150.4K | Option Exercise | 2,488 | $60.47 | Discretionary |
| Mar 20, 2006 | ABK | $132.7K | Option Exercise | 2,063 | $64.32 | Discretionary |
| Mar 1, 2006 | ABK | $908 | Small Acquisition | 12 | $75.66 | Discretionary |
| Mar 1, 2006 | ABK | $3.8K | Award | 50 | $75.14 | Discretionary |
| Feb 1, 2006 | ABK | $154 | Payment | 2 | $76.83 | Discretionary |
| Feb 1, 2006 | ABK | $30.2K | Payment | 393 | $76.83 | Discretionary |