Leonard S. Schleifer serves as Executive at REGENERON PHARMACEUTICALS INC, where they oversee executive responsibilities. Since joining the company, Leonard S. Schleifer has executed 273 insider transactions totaling $461.4M, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 7, 2006 involved selling 300 shares valued at $6.9K.
Leonard S. Schleifer currently holds 595,077 shares of REGENERON PHARMACEUTICALS INC (REGN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Leonard S. Schleifer has been a net seller of REGN stock. They have purchased $0 and sold $461.4M worth of shares.
Leonard S. Schleifer's most recent insider trade was on Nov 7, 2006, when they sold 300 shares at $23.03 per share.
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| $23.02 |
| Discretionary |
| Nov 7, 2006 | REGN | $16.1K | Sale | 700 | $23.01 | Discretionary |
| Nov 7, 2006 | REGN | $18.0K | Sale | 781 | $23.00 | Discretionary |
| Nov 6, 2006 | REGN | $260.0K | Payment | 11,685 | $22.25 | Discretionary |
| Nov 6, 2006 | REGN | $260.0K | Option Exercise | 27,370 | $9.50 | Discretionary |
| Nov 6, 2006 | REGN | $700.7K | Payment | 31,493 | $22.25 | Discretionary |
| Nov 6, 2006 | REGN | $1.1M | Payment | 47,535 | $22.25 | Discretionary |
| Nov 6, 2006 | REGN | $1.1M | Option Exercise | 122,630 | $8.63 | Discretionary |
| Nov 6, 2006 | REGN | $117.9K | Payment | 5,301 | $22.25 | Discretionary |
| Oct 17, 2006 | REGN | $515.8K | Sale | 28,656 | $18.00 | Discretionary |
| Oct 17, 2006 | REGN | $24.3K | Sale | 1,344 | $18.05 | Discretionary |
| Sep 13, 2006 | REGN | $24.8K | Sale | 1,500 | $16.55 | Discretionary |
| Sep 13, 2006 | REGN | $1.7K | Sale | 100 | $16.52 | Discretionary |
| Sep 13, 2006 | REGN | $181.6K | Sale | 11,007 | $16.50 | Discretionary |
| Sep 13, 2006 | REGN | $51.4K | Sale | 3,093 | $16.61 | Discretionary |
| Sep 13, 2006 | REGN | $3.3K | Sale | 200 | $16.58 | Discretionary |
| Sep 13, 2006 | REGN | $5.0K | Sale | 300 | $16.59 | Discretionary |
| Sep 13, 2006 | REGN | $213.1K | Sale | 12,900 | $16.52 | Discretionary |
| Sep 13, 2006 | REGN | $3.3K | Sale | 200 | $16.54 | Discretionary |
| Sep 13, 2006 | REGN | $11.6K | Sale | 700 | $16.56 | Discretionary |
| Mar 7, 2006 | REGN | $7.2K | Sale | 401 | $18.00 | Discretionary |
| Mar 6, 2006 | REGN | $12.6K | Sale | 700 | $18.00 | Discretionary |