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Monday, December 14, 2009, 5:26PM ET - U.S. Markets Closed. Dow Up 0.28% Nasdaq Up 0.99%
Immunogen Inc. (IMGN)At 4:00PM ET: 8.57  Down 0.20 (2.28%)  
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Insider TransactionsGet Insider Transactions for:
NET SHARE PURCHASE ACTIVITY
Insider Purchases - Last 6 Months
 SharesTrans
PurchasesN/A0
Sales3,878,9706
Net Shares Purchased
(Sold)
(3,878,970)6
Total Insider Shares Held5.22M N/A
% Net Shares Purchased
(Sold)
(42.6%) N/A
Net Institutional Purchases - Prior Qtr to Latest Qtr
 Shares
Net Shares Purchased (Sold)2,470,030
% Change in Institutional Shares Held6.9%
Data provided by Thomson Financial

INSIDER TRANSACTIONS REPORTED - LAST TWO YEARS
DateInsiderSharesTypeTransactionValue*
24-Nov-09LAMBERT JOHN
Officer
34,320DirectOption Exercise at $6.78 per share.$232,689
24-Nov-09LAMBERT JOHN
Officer
27,025DirectSale at $8.45 per share.$228,361
20-Nov-09LAMBERT JOHN
Officer
21,117DirectOption Exercise at $6.78 per share.$143,173
20-Nov-09LAMBERT JOHN
Officer
21,117DirectSale at $8.41 per share.$177,593
20-Nov-09SAYARE MITCHEL
Director
3,641DirectOption Exercise at $6.78 per share.$24,685
20-Nov-09SAYARE MITCHEL
Director
3,263DirectSale at $8.02 per share.$26,169
19-Nov-09SAYARE MITCHEL
Director
81,359DirectOption Exercise at $6.78 per share.$551,614
19-Nov-09SAYARE MITCHEL
Director
73,000DirectSale at $8.05 per share.$587,650
18-Nov-09LAMBERT JOHN
Officer
14,563DirectOption Exercise at $6.78 per share.$98,737
18-Nov-09LAMBERT JOHN
Officer
14,563DirectSale at $8.41 per share.$122,474
11-Nov-09PIEN HOWARD H
Director
2,168DirectStatement of OwnershipN/A
6-Nov-09SAYARE MITCHEL
Director
50,000DirectSale at $7.87 per share.$393,500
5-Nov-09SAYARE MITCHEL
Director
150,000DirectSale at $7.38 per share.$1,107,000
3-Nov-09CARTER DAVID WARREN
Director
20,000DirectSale at $6.78 per share.$135,600
2-Nov-09CARTER DAVID WARREN
Director
20,000DirectSale at $6.75 per share.$135,000
31-Jul-09SAMANA CAPITAL, L.P.
Beneficial Owner (10% or more)
3,500,000DirectSale at $8.64 per share.$30,240,000
5-Jan-09SAYARE MITCHEL
Officer
80,000DirectOption Exercise at $2.25 per share.$180,000
8-Dec-08LAMBERT JOHN
Officer
27,000DirectOption Exercise at $2.25 per share.$60,750
3-Dec-08LAMBERT JOHN
Officer
11,600DirectOption Exercise at $2.25 per share.$26,100
3-Dec-08LAMBERT JOHN
Officer
11,600DirectSale at $3.59 per share.$41,644
28-Nov-08LAMBERT JOHN
Officer
15,400DirectOption Exercise at $2.25 per share.$34,650
28-Nov-08LAMBERT JOHN
Officer
15,400DirectSale at $3.75 - $3.99 per share.$60,0002
20-Jun-08SAMANA CAPITAL, L.P.
Beneficial Owner (10% or more)
9,046,200DirectStatement of OwnershipN/A
17-Jun-08CARTER DAVID WARREN
Director
50,000DirectOption Exercise at $1.38 per share.$69,000
Data provided by EDGAR Online
* = Where indicated, some values are estimates.
1 = Potential proceeds estimated by the filer.
2 = Estimated based on the average of multiple prices reported.
3 = Multiple dates reported. Most recent date shown.
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