Michael Kowolenko serves as Executive at BIOGEN IDEC INC, where they oversee executive responsibilities. Since joining the company, Michael Kowolenko has executed 20 insider transactions totaling $2.3M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jul 25, 2007 involved exercising options for 3,450 shares valued at $145.3K.
Michael Kowolenko currently holds 21,573.86 shares of BIOGEN IDEC INC (BIIB), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Michael Kowolenko has been a net seller of BIIB stock. They have purchased $0 and sold $2.3M worth of shares.
Michael Kowolenko's most recent insider trade was on Jul 25, 2007, when they sold 3,450 shares at $42.12 per share.
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| 4,356 |
| $37.45 |
| Discretionary |
| Jul 25, 2007 | BIIB | $367.1K | Option Exercise | 8,438 | $43.50 | Discretionary |
| Jul 25, 2007 | BIIB | $1.2M | Sale | 20,507 | $58.00 | Discretionary |
| Jul 25, 2007 | BIIB | $188.6K | Option Exercise | 4,263 | $44.24 | Discretionary |
| Mar 20, 2007 | BIIB | $167.1K | Sale | 3,756 | $44.48 | Discretionary |
| Mar 14, 2007 | BIIB | $108.9K | Payment | 2,469 | $44.11 | Discretionary |
| Mar 14, 2007 | BIIB | $0 | Award | 6,225 | $N/A | Discretionary |
| Feb 13, 2007 | BIIB | $434.5K | Sale | 8,828 | $49.22 | Discretionary |
| Feb 12, 2007 | BIIB | $0 | Award | 17,500 | $N/A | Discretionary |
| Feb 6, 2007 | BIIB | $0 | Option Exercise | 4,534 | $N/A | Discretionary |
| Feb 6, 2007 | BIIB | $205.8K | Payment | 4,206 | $48.94 | Discretionary |
| Sep 19, 2006 | BIIB | $107.7K | Sale | 2,513.89 | $42.84 | Discretionary |
| Sep 19, 2006 | BIIB | $32.9K | Sale | 770.14 | $42.70 | Discretionary |
| Sep 19, 2006 | BIIB | $47.7K | Sale | 1,117.29 | $42.72 | Discretionary |
| Sep 19, 2006 | BIIB | $107.5K | Sale | 2,513.89 | $42.75 | Discretionary |
| Sep 19, 2006 | BIIB | $107.5K | Sale | 2,513.89 | $42.77 | Discretionary |
| Sep 19, 2006 | BIIB | $107.6K | Sale | 2,513.89 | $42.80 | Discretionary |
| Sep 14, 2006 | BIIB | $0 | Award | 17,500 | $N/A | Discretionary |
| Sep 14, 2006 | BIIB | $241.1K | Payment | 5,557 | $43.39 | Discretionary |