John Lambert serves as Executive at IMMUNOGEN INC, where they oversee executive responsibilities. Since joining the company, John Lambert has executed 109 insider transactions totaling $4.3M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 15, 2012 involved exercising options for 38,133 shares valued at $150.6K.
John Lambert currently holds 120,521 shares of IMMUNOGEN INC (IMGN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John Lambert has been a net seller of IMGN stock. They have purchased $4.7K and sold $4.3M worth of shares.
John Lambert's most recent insider trade was on Feb 15, 2012, when they sold 38,133 shares at $3.95 per share.
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| 41,867 |
| $3.95 |
| Discretionary |
| Feb 14, 2012 | IMGN | $223.1K | Sale | 16,550 | $13.48 | Discretionary |
| Nov 24, 2009 | IMGN | $228.4K | Sale | 27,025 | $8.45 | Discretionary |
| Nov 24, 2009 | IMGN | $232.7K | Option Exercise | 34,320 | $6.78 | Discretionary |
| Nov 20, 2009 | IMGN | $143.2K | Option Exercise | 21,117 | $6.78 | Discretionary |
| Nov 20, 2009 | IMGN | $177.6K | Sale | 21,117 | $8.41 | Discretionary |
| Nov 18, 2009 | IMGN | $122.5K | Sale | 14,563 | $8.41 | Discretionary |
| Nov 18, 2009 | IMGN | $98.7K | Option Exercise | 14,563 | $6.78 | Discretionary |
| Dec 8, 2008 | IMGN | $60.8K | Option Exercise | 27,000 | $2.25 | Discretionary |
| Dec 3, 2008 | IMGN | $26.1K | Option Exercise | 11,600 | $2.25 | Discretionary |
| Dec 3, 2008 | IMGN | $41.6K | Sale | 11,600 | $3.59 | Discretionary |
| Nov 28, 2008 | IMGN | $5.4K | Sale | 1,420 | $3.81 | Discretionary |
| Nov 28, 2008 | IMGN | $381 | Sale | 100 | $3.81 | Discretionary |
| Nov 28, 2008 | IMGN | $3.7K | Sale | 980 | $3.80 | Discretionary |
| Nov 28, 2008 | IMGN | $3.8K | Sale | 1,000 | $3.79 | Discretionary |
| Nov 28, 2008 | IMGN | $379 | Sale | 100 | $3.79 | Discretionary |
| Nov 28, 2008 | IMGN | $3.4K | Sale | 900 | $3.78 | Discretionary |
| Nov 28, 2008 | IMGN | $4.5K | Sale | 1,200 | $3.77 | Discretionary |
| Nov 28, 2008 | IMGN | $6.8K | Sale | 1,800 | $3.76 | Discretionary |
| Nov 28, 2008 | IMGN | $26.3K | Sale | 7,000 | $3.75 | Discretionary |
| Nov 28, 2008 | IMGN | $34.6K | Option Exercise | 15,400 | $2.25 | Discretionary |
| Nov 28, 2008 | IMGN | $798 | Sale | 200 | $3.99 | Discretionary |
| Nov 28, 2008 | IMGN | $390 | Sale | 100 | $3.90 | Discretionary |
| Nov 28, 2008 | IMGN | $778 | Sale | 200 | $3.89 | Discretionary |
| Nov 28, 2008 | IMGN | $1.5K | Sale | 400 | $3.82 | Discretionary |
| Dec 7, 2006 | IMGN | $43.7K | Sale | 7,900 | $5.53 | Discretionary |
| Dec 7, 2006 | IMGN | $25.9K | Sale | 4,690 | $5.52 | Discretionary |
| Dec 7, 2006 | IMGN | $3.3K | Sale | 600 | $5.51 | Discretionary |
| Dec 7, 2006 | IMGN | $24.7K | Sale | 4,488 | $5.50 | Discretionary |