Walter Blattler serves as Executive at IMMUNOGEN INC, where they oversee executive responsibilities. Since joining the company, Walter Blattler has executed 137 insider transactions totaling $4.9M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jun 4, 2007 involved exercising options for 43,333 shares valued at $231.8K.
Walter Blattler currently holds 168,233 shares of IMMUNOGEN INC (IMGN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Walter Blattler has been a net seller of IMGN stock. They have purchased $0 and sold $4.9M worth of shares.
Walter Blattler's most recent insider trade was on Jun 4, 2007, when they sold 43,333 shares at $5.35 per share.
Get notified when new Form 4 filings are submitted
| $5.96 |
| Discretionary |
| Jun 4, 2007 | IMGN | $1.8K | Sale | 300 | $5.95 | Discretionary |
| Jun 4, 2007 | IMGN | $593 | Sale | 100 | $5.93 | Discretionary |
| Jun 4, 2007 | IMGN | $7.1K | Sale | 1,200 | $5.92 | Discretionary |
| Jun 4, 2007 | IMGN | $20.1K | Sale | 3,400 | $5.91 | Discretionary |
| Jun 4, 2007 | IMGN | $3.5K | Sale | 600 | $5.90 | Discretionary |
| Jun 4, 2007 | IMGN | $1.8K | Sale | 300 | $5.89 | Discretionary |
| Jun 4, 2007 | IMGN | $1.2K | Sale | 200 | $5.83 | Discretionary |
| Jun 4, 2007 | IMGN | $5.8K | Sale | 992 | $5.86 | Discretionary |
| Jun 4, 2007 | IMGN | $10.0K | Sale | 1,704 | $5.85 | Discretionary |
| Jun 4, 2007 | IMGN | $18.6K | Sale | 3,200 | $5.82 | Discretionary |
| Jun 4, 2007 | IMGN | $5.8K | Sale | 1,004 | $5.81 | Discretionary |
| Jun 4, 2007 | IMGN | $175.4K | Sale | 30,233 | $5.80 | Discretionary |
| Apr 13, 2007 | IMGN | $35.5K | Sale | 6,400 | $5.55 | Discretionary |
| Apr 13, 2007 | IMGN | $2.9K | Sale | 500 | $5.87 | Discretionary |
| Apr 13, 2007 | IMGN | $13.5K | Sale | 2,300 | $5.86 | Discretionary |
| Apr 13, 2007 | IMGN | $1.2K | Sale | 200 | $5.85 | Discretionary |
| Apr 13, 2007 | IMGN | $3.5K | Sale | 600 | $5.84 | Discretionary |
| Apr 13, 2007 | IMGN | $45.5K | Sale | 7,807 | $5.83 | Discretionary |
| Apr 13, 2007 | IMGN | $24.7K | Sale | 4,251 | $5.82 | Discretionary |
| Apr 13, 2007 | IMGN | $9.5K | Sale | 1,642 | $5.81 | Discretionary |
| Apr 13, 2007 | IMGN | $15.7K | Sale | 2,700 | $5.80 | Discretionary |
| Apr 13, 2007 | IMGN | $30.1K | Sale | 5,200 | $5.79 | Discretionary |
| Apr 13, 2007 | IMGN | $6.9K | Sale | 1,188 | $5.78 | Discretionary |
| Apr 13, 2007 | IMGN | $28.7K | Sale | 4,971 | $5.77 | Discretionary |
| Apr 13, 2007 | IMGN | $20.3K | Sale | 3,650 | $5.56 | Discretionary |
| Apr 13, 2007 | IMGN | $20.3K | Sale | 3,517 | $5.76 | Discretionary |
| Apr 13, 2007 | IMGN | $27.8K | Sale | 4,999 | $5.57 | Discretionary |
| Apr 13, 2007 | IMGN | $94.5K | Sale | 16,935 | $5.58 | Discretionary |