Kathryn L. Biberstein serves as Executive at ALKERMES INC, where they oversee executive responsibilities. Since joining the company, Kathryn L. Biberstein has executed 168 insider transactions totaling $14.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 18, 2013 involved exercising options for 3,750 shares valued at $0.
Kathryn L. Biberstein currently holds 40,200 shares of ALKERMES INC (ALKS), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Kathryn L. Biberstein has been a net seller of ALKS stock. They have purchased $0 and sold $14.6M worth of shares.
Kathryn L. Biberstein's most recent insider trade was on Nov 18, 2013, when they sold 3,750 shares at $0.00 per share.
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| $32.84 |
| Discretionary |
| May 26, 2013 | ALKS | $0 | Option Exercise | 2,125 | $N/A | Discretionary |
| May 21, 2013 | ALKS | $68.0K | Payment | 2,125 | $31.98 | Discretionary |
| May 21, 2013 | ALKS | $0 | Option Exercise | 4,500 | $N/A | Discretionary |
| May 20, 2013 | ALKS | $0 | Option Exercise | 3,750 | $N/A | Discretionary |
| May 20, 2013 | ALKS | $54.9K | Payment | 1,770 | $31.04 | Discretionary |
| May 17, 2013 | ALKS | $43.0K | Payment | 1,356 | $31.69 | Discretionary |
| May 17, 2013 | ALKS | $0 | Option Exercise | 3,125 | $N/A | Discretionary |
| Apr 17, 2013 | ALKS | $604.6K | Sale | 21,500 | $28.12 | Discretionary |
| Apr 17, 2013 | ALKS | $261.4K | Option Exercise | 21,500 | $12.16 | Discretionary |
| Apr 16, 2013 | ALKS | $460.4K | Sale | 18,000 | $25.58 | Discretionary |
| Apr 16, 2013 | ALKS | $218.9K | Option Exercise | 18,000 | $12.16 | Discretionary |
| Apr 12, 2013 | ALKS | $364.3K | Option Exercise | 25,000 | $14.57 | Discretionary |
| Apr 12, 2013 | ALKS | $615.3K | Sale | 25,000 | $24.61 | Discretionary |
| Jan 31, 2013 | ALKS | $242.9K | Sale | 10,500 | $23.13 | Discretionary |
| Jan 31, 2013 | ALKS | $104.7K | Option Exercise | 10,500 | $9.97 | Discretionary |
| Nov 18, 2012 | ALKS | $0 | Option Exercise | 3,750 | $N/A | Discretionary |
| Nov 18, 2012 | ALKS | $23.2K | Payment | 1,189 | $19.49 | Discretionary |
| May 27, 2012 | ALKS | $7.7K | Payment | 476 | $16.14 | Discretionary |
| May 26, 2012 | ALKS | $0 | Option Exercise | 2,125 | $N/A | Discretionary |
| May 26, 2012 | ALKS | $10.9K | Payment | 674 | $16.14 | Discretionary |
| May 20, 2012 | ALKS | $19.5K | Payment | 1,189 | $16.42 | Discretionary |
| May 20, 2012 | ALKS | $0 | Option Exercise | 3,750 | $N/A | Discretionary |
| May 17, 2012 | ALKS | $16.6K | Payment | 991 | $16.71 | Discretionary |
| May 17, 2012 | ALKS | $0 | Option Exercise | 3,125 | $N/A | Discretionary |
| Nov 18, 2011 | ALKS | $0 | Option Exercise | 3,750 | $N/A | Discretionary |
| Nov 18, 2011 | ALKS | $23.5K | Payment | 1,566 | $15.00 | Discretionary |
| Nov 5, 2011 | ALKS | $3.4K | Payment | 209 | $16.12 | Discretionary |
| Sep 16, 2011 | ALKS | $0 | Disposition | 32,459 | $N/A | Discretionary |