Insider Trading activities of Immunogen Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Immunogen Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Immunogen Inc since year 2005. Table 2 shows the detailed insider transactions of Immunogen Inc since 2005. The reporting company's ticker symbol is IMGN. The reporting company's CIK number is 855654.
The total value of stock buying since 2005 is $681,832.
The total value of stock sales since 2005 is $52,288,827.
The total value of stock option exercises since 2005 is $10,327,060.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Immunogen Inc (IMGN).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2017-09 0 $0 38,550 $262,954 50,000 $225,000
2016-12 20,000 $36,000 0 $0 0 $0
2016-11 64,375 $114,082 0 $0 0 $0
2016-06 0 $0 0 $0 27,085 $86,401
2016-02 0 $0 3,889 $31,971 14,778 $61,187
2016-01 0 $0 11,674 $148,993 9,305 $29,682
2015-12 0 $0 9,305 $122,002 9,305 $29,682
2015-11 10,000 $125,109 14,556 $183,969 15,293 $55,281
2015-10 0 $0 9,224 $101,201 14,921 $58,078
2015-09 0 $0 14,305 $197,423 19,204 $111,898
2015-08 0 $0 14,305 $243,934 26,615 $154,659
2015-07 0 $0 9,304 $133,445 9,304 $29,679
2015-06 0 $0 18,211 $221,134 18,211 $105,360
2015-05 0 $0 46,530 $388,122 57,177 $324,295
2015-04 0 $0 10,000 $87,380 43,101 $243,499
2014-11 0 $0 5,240 $54,496 0 $0
2014-09 0 $0 0 $0 17,421 $99,996
2014-05 0 $0 0 $0 15,000 $49,500
2014-03 0 $0 15,000 $245,999 15,000 $86,100
2014-02 0 $0 39,983 $663,185 39,983 $359,383
2014-01 0 $0 17,763 $278,891 17,763 $174,148
2013-12 0 $0 19,375 $291,011 26,675 $155,433
2013-11 0 $0 16,875 $243,664 4,375 $27,431
2013-10 0 $0 4,375 $74,681 4,375 $27,431
2013-09 0 $0 39,379 $672,444 39,379 $202,314
2013-08 0 $0 21,042 $404,178 21,042 $123,099
2013-07 0 $0 56,042 $1,027,652 56,042 $267,299
2013-06 0 $0 11,250 $193,455 11,250 $43,987
2013-05 0 $0 40,150 $698,364 40,150 $163,055
2013-04 0 $0 42,350 $718,085 42,350 $172,119
2013-03 0 $0 26,250 $414,214 26,250 $105,787
2012-11 3,000 $33,804 0 $0 0 $0
2012-02 0 $0 38,729 $522,670 80,000 $315,999
2011-11 0 $0 8,333 $104,862 8,333 $35,998
2011-10 0 $0 8,333 $111,645 8,333 $35,998
2011-09 0 $0 8,333 $91,663 31,669 $111,723
2011-08 0 $0 8,333 $92,121 8,333 $35,998
2011-07 0 $0 18,333 $276,219 8,333 $35,998
2011-06 0 $0 28,333 $334,490 8,333 $35,998
2011-05 0 $0 20,000 $254,730 0 $0
2011-04 0 $0 40,000 $507,720 0 $0
2011-03 0 $0 50,000 $435,474 0 $0
2010-11 0 $0 45,000 $359,775 0 $0
2009-11 0 $0 378,968 $2,913,162 155,000 $1,051,052
2009-07 0 $0 3,500,000 $30,240,000 0 $0
2009-01 0 $0 0 $0 80,000 $180,000
2008-12 0 $0 11,600 $41,667 38,600 $86,850
2008-11 0 $0 15,400 $58,812 15,400 $34,650
2008-06 0 $0 0 $0 50,000 $68,750
2007-11 0 $0 101,204 $483,848 229,166 $193,415
2007-10 0 $0 0 $0 25,000 $21,100
2007-08 50,000 $221,900 0 $0 25,000 $32,800
2007-07 0 $0 0 $0 50,000 $65,600
2007-06 0 $0 43,333 $254,754 43,333 $231,831
2007-05 0 $0 0 $0 2,168 $10,905
2007-04 0 $0 214,860 $1,238,003 10,000 $16,250
2007-03 0 $0 952,724 $4,520,147 1,144,084 $3,205,127
2006-12 0 $0 50,000 $278,900 50,000 $65,600
2006-10 0 $0 40,967 $163,868 40,967 $34,573
2006-03 0 $0 200,000 $901,450 339,625 $849,062
2006-01 60,375 $150,937 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Immunogen Inc insiders (IMGN)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2017-09-15 Barrows Craig (Executive VP, General Counsel) Sale 22,450 6.73 151,043
2017-09-15 Barrows Craig (Executive VP, General Counsel) Option Ex 30,000 4.50 135,000
2017-09-13 Berkenblit Anna (VP & Chief Medical Officer) Sale 1,500 7.00 10,500
2017-09-13 Barrows Craig (Executive VP, General Counsel) Sale 14,600 6.95 101,411
2017-09-13 Barrows Craig (Executive VP, General Counsel) Option Ex 20,000 4.50 90,000
2016-12-15 Goldberg Mark Alan Buy 20,000 1.80 36,000
2016-11-08 Enyedy Mark J (Chief Executive Officer) Buy 25,000 1.83 45,750
2016-11-02 Gregory Richard J. (Executive VP & CSO) Buy 16,600 1.78 29,597
2016-11-02 Johnston David Brannon (Chief Financial Officer) Buy 10,000 1.70 16,980
2016-11-02 Lambert John (Executive Vice President) Buy 2,775 1.69 4,675
2016-11-02 Barrows Craig (Vice-President,General Counsel) Buy 10,000 1.71 17,080
2016-06-02 Junius Daniel M Option Ex 27,085 3.19 86,401
2016-02-26 Lambert John (Executive Vice President) Option Ex 10,889 4.48 48,782
2016-02-01 Lambert John (Executive Vice President) Sale 3,889 8.22 31,971
2016-02-01 Lambert John (Executive Vice President) Option Ex 3,889 3.19 12,405
2016-01-08 Gregory Richard J. (Executive VP & CSO) Sale 2,369 11.10 26,305
2016-01-04 Lambert John (Executive Vice President) Sale 3,889 13.20 51,338
2016-01-04 Lambert John (Executive Vice President) Option Ex 3,889 3.19 12,405
2016-01-04 Junius Daniel M (Chief Executive Officer) Sale 5,416 13.17 71,350
2016-01-04 Junius Daniel M (Chief Executive Officer) Option Ex 5,416 3.19 17,277
2015-12-01 Lambert John (Executive Vice President) Sale 3,889 13.11 50,977
2015-12-01 Lambert John (Executive Vice President) Option Ex 3,889 3.19 12,405
2015-12-01 Junius Daniel M (Chief Executive Officer) Sale 5,416 13.11 71,025
2015-12-01 Junius Daniel M (Chief Executive Officer) Option Ex 5,416 3.19 17,277
2015-11-27 Morris Charles Q (Executive VP & CDO) Sale 5,170 14.00 72,380
2015-11-17 Mitchell Dean J Buy 10,000 12.51 125,109
2015-11-03 Junius Daniel M (Chief Executive Officer) Option Ex 5,907 4.29 25,341
2015-11-02 Lambert John (Executive Vice President) Sale 3,889 11.73 45,625
2015-11-02 Lambert John (Executive Vice President) Option Ex 3,889 3.19 12,405
2015-11-02 Junius Daniel M (Chief Executive Officer) Sale 5,497 12.00 65,964
2015-11-02 Junius Daniel M (Chief Executive Officer) Option Ex 5,497 3.19 17,535
2015-10-30 Junius Daniel M (Chief Executive Officer) Option Ex 5,697 5.03 28,655
2015-10-29 Junius Daniel M (Chief Executive Officer) Sale 5,335 12.01 64,073
2015-10-29 Junius Daniel M (Chief Executive Officer) Option Ex 5,335 3.19 17,018
2015-10-01 Lambert John (Executive Vice President) Sale 3,889 9.55 37,128
2015-10-01 Lambert John (Executive Vice President) Option Ex 3,889 3.19 12,405
2015-09-17 Johnston David Brannon (Chief Financial Officer) Sale 5,000 15.00 75,000
2015-09-17 Johnston David Brannon (Chief Financial Officer) Option Ex 5,000 10.79 53,949
2015-09-09 Junius Daniel M (Chief Executive Officer) Option Ex 4,899 5.77 28,267
2015-09-01 Lambert John (Executive Vice President) Sale 3,889 13.16 51,187
2015-09-01 Lambert John (Executive Vice President) Option Ex 3,889 3.19 12,405
2015-09-01 Junius Daniel M (Chief Executive Officer) Sale 5,416 13.15 71,236
2015-09-01 Junius Daniel M (Chief Executive Officer) Option Ex 5,416 3.19 17,277
2015-08-17 Junius Daniel M (Chief Executive Officer) Option Ex 12,310 5.77 71,028
2015-08-03 Johnston David Brannon (Chief Financial Officer) Sale 5,000 17.04 85,180
2015-08-03 Johnston David Brannon (Chief Financial Officer) Option Ex 5,000 10.79 53,949
2015-08-03 Lambert John (Executive Vice President) Sale 3,889 17.10 66,509
2015-08-03 Lambert John (Executive Vice President) Option Ex 3,889 3.19 12,405
2015-08-03 Junius Daniel M (Chief Executive Officer) Sale 5,416 17.03 92,245
2015-08-03 Junius Daniel M (Chief Executive Officer) Option Ex 5,416 3.19 17,277
2015-07-01 Lambert John (Executive Vice President) Sale 3,888 14.34 55,769
2015-07-01 Lambert John (Executive Vice President) Option Ex 3,888 3.19 12,402
2015-07-01 Junius Daniel M (Chief Executive Officer) Sale 5,416 14.34 77,676
2015-07-01 Junius Daniel M (Chief Executive Officer) Option Ex 5,416 3.19 17,277
2015-06-15 Onetto Nicole Sale 3,211 13.86 44,494
2015-06-15 Onetto Nicole Option Ex 3,211 7.82 25,110
2015-06-01 Lambert John (Executive Vice President) Sale 15,000 11.78 176,640
2015-06-01 Lambert John (Executive Vice President) Option Ex 15,000 5.35 80,250
2015-05-07 Junius Daniel M (Chief Executive Officer) Sale 1,215 8.02 9,744
2015-05-07 Junius Daniel M (Chief Executive Officer) Option Ex 1,215 5.74 6,974
2015-05-04 Junius Daniel M (Chief Executive Officer) Option Ex 10,647 5.74 61,113
2015-05-01 Lambert John (Executive Vice President) Sale 10,000 8.32 83,180
2015-05-01 Lambert John (Executive Vice President) Option Ex 10,000 5.35 53,500
2015-05-01 Junius Daniel M (Chief Executive Officer) Sale 35,315 8.36 295,198
2015-05-01 Junius Daniel M (Chief Executive Officer) Option Ex 35,315 5.74 202,708
2015-04-21 Junius Daniel M (Chief Executive Officer) Option Ex 6,969 5.74 40,002
2015-04-02 Junius Daniel M (Chief Executive Officer) Option Ex 26,132 5.74 149,997
2015-04-01 Lambert John (Executive Vice President) Sale 10,000 8.74 87,380
2015-04-01 Lambert John (Executive Vice President) Option Ex 10,000 5.35 53,500
2014-11-28 Morris Charles Q (Executive VP & CDO) Sale 5,240 10.40 54,496
2014-09-19 Junius Daniel M (Chief Executive Officer) Option Ex 17,421 5.74 99,996
2014-05-05 Barrows Craig (Vice-President,General Counsel) Option Ex 15,000 3.30 49,500
2014-03-17 Junius Daniel M (Chief Executive Officer) Sale 15,000 16.40 245,999
2014-03-17 Junius Daniel M (Chief Executive Officer) Option Ex 15,000 5.74 86,100
2014-02-26 Morris Charles Q (Executive VP & CDO) Sale 6,936 17.35 120,332
2014-02-26 Morris Charles Q (Executive VP & CDO) Option Ex 6,936 11.93 82,746
2014-02-20 Morris Charles Q (Executive VP & CDO) Sale 13,672 17.10 233,736
2014-02-20 Morris Charles Q (Executive VP & CDO) Option Ex 13,672 11.93 163,106
2014-02-18 Junius Daniel M (Chief Executive Officer) Sale 15,000 16.26 243,930
2014-02-18 Junius Daniel M (Chief Executive Officer) Option Ex 15,000 5.74 86,100
2014-02-03 Lambert John (Executive Vice President) Sale 4,375 14.90 65,187
2014-02-03 Lambert John (Executive Vice President) Option Ex 4,375 6.27 27,431
2014-01-22 Morris Charles Q (Executive VP & CDO) Sale 1,603 17.00 27,257
2014-01-22 Morris Charles Q (Executive VP & CDO) Option Ex 1,603 11.93 19,123
2014-01-21 Morris Charles Q (Executive VP & CDO) Sale 5,535 17.00 94,095
2014-01-21 Morris Charles Q (Executive VP & CDO) Option Ex 5,535 11.93 66,032
2014-01-10 Wingrove Theresa (VP of Regulatory Affairs) Sale 6,250 15.04 93,993
2014-01-10 Wingrove Theresa (VP of Regulatory Affairs) Option Ex 6,250 9.85 61,562
2014-01-02 Lambert John (Executive Vice President) Sale 4,375 14.53 63,546
2014-01-02 Lambert John (Executive Vice President) Option Ex 4,375 6.27 27,431
2013-12-26 Junius Daniel M (Chief Executive Officer) Option Ex 7,300 5.74 41,902
2013-12-10 Junius Daniel M (Chief Executive Officer) Sale 15,000 15.11 226,695
2013-12-10 Junius Daniel M (Chief Executive Officer) Option Ex 15,000 5.74 86,100
2013-12-02 Lambert John (Executive Vice President) Sale 4,375 14.70 64,316
2013-12-02 Lambert John (Executive Vice President) Option Ex 4,375 6.27 27,431
2013-11-26 Morris Charles Q (Executive VP & CDO) Sale 12,500 13.75 171,862
2013-11-01 Lambert John (Executive Vice President) Sale 4,375 16.41 71,802
2013-11-01 Lambert John (Executive Vice President) Option Ex 4,375 6.27 27,431
2013-10-01 Lambert John (Executive Vice President) Sale 4,375 17.07 74,681
2013-10-01 Lambert John (Executive Vice President) Option Ex 4,375 6.27 27,431
2013-09-10 Perry Gregory D (Chief Financial Officer) Sale 18,337 17.82 326,691
2013-09-10 Perry Gregory D (Chief Financial Officer) Option Ex 18,337 4.32 79,215
2013-09-03 Lambert John (Executive Vice President) Sale 4,375 16.45 71,981
2013-09-03 Lambert John (Executive Vice President) Option Ex 4,375 6.27 27,431
2013-09-03 Junius Daniel M (Chief Executive Officer) Sale 16,667 16.43 273,772
2013-09-03 Junius Daniel M (Chief Executive Officer) Option Ex 16,667 5.74 95,668
2013-08-01 Lambert John (Executive Vice President) Sale 4,375 19.21 84,039
2013-08-01 Lambert John (Executive Vice President) Option Ex 4,375 6.27 27,431
2013-08-01 Junius Daniel M (Chief Executive Officer) Sale 16,667 19.21 320,139
2013-08-01 Junius Daniel M (Chief Executive Officer) Option Ex 16,667 5.74 95,668
2013-07-11 O'leary James J (Vice President) Sale 35,000 19.02 665,630
2013-07-11 O'leary James J (Vice President) Option Ex 35,000 4.12 144,200
2013-07-03 Junius Daniel M (Chief Executive Officer) Sale 16,667 17.31 288,522
2013-07-03 Junius Daniel M (Chief Executive Officer) Option Ex 16,667 5.74 95,668
2013-07-01 Lambert John (Executive Vice President) Sale 4,375 16.80 73,500
2013-07-01 Lambert John (Executive Vice President) Option Ex 4,375 6.27 27,431
2013-06-03 Lambert John (Executive Vice President) Sale 11,250 17.20 193,455
2013-06-03 Lambert John (Executive Vice President) Option Ex 11,250 3.91 43,987
2013-05-24 O'leary James J (Vice President) Sale 28,900 18.11 523,292
2013-05-24 O'leary James J (Vice President) Option Ex 28,900 4.12 119,068
2013-05-01 Lambert John (Executive Vice President) Sale 11,250 15.56 175,072
2013-05-01 Lambert John (Executive Vice President) Option Ex 11,250 3.91 43,987
2013-04-11 O'leary James J (Vice President) Sale 25,500 17.45 445,051
2013-04-11 O'leary James J (Vice President) Option Ex 25,500 4.12 105,060
2013-04-10 O'leary James J (Vice President) Sale 5,600 17.00 95,228
2013-04-10 O'leary James J (Vice President) Option Ex 5,600 4.12 23,072
2013-04-01 Lambert John (Executive Vice President) Sale 11,250 15.80 177,806
2013-04-01 Lambert John (Executive Vice President) Option Ex 11,250 3.91 43,987
2013-03-08 O'leary James J (Vice President) Sale 13,300 16.06 213,651
2013-03-08 O'leary James J (Vice President) Option Ex 13,300 4.12 54,796
2013-03-07 O'leary James J (Vice President) Sale 1,700 16.00 27,201
2013-03-07 O'leary James J (Vice President) Option Ex 1,700 4.12 7,004
2013-03-04 Lambert John (Executive Vice President) Sale 11,250 15.41 173,362
2013-03-04 Lambert John (Executive Vice President) Option Ex 11,250 3.91 43,987
2012-11-08 Goldberg Mark Alan Buy 3,000 11.27 33,804
2012-02-15 Lambert John (Executive Vice President) Sale 22,179 13.51 299,527
2012-02-15 Lambert John (Executive Vice President) Option Ex 38,133 3.95 150,625
2012-02-14 Lambert John (Executive Vice President) Sale 16,550 13.48 223,143
2012-02-14 Lambert John (Executive Vice President) Option Ex 41,867 3.95 165,374
2011-11-15 Perry Gregory D (Chief Financial Officer) Sale 8,333 12.58 104,862
2011-11-15 Perry Gregory D (Chief Financial Officer) Option Ex 8,333 4.32 35,998
2011-10-17 Perry Gregory D (Chief Financial Officer) Sale 8,333 13.40 111,645
2011-10-17 Perry Gregory D (Chief Financial Officer) Option Ex 8,333 4.32 35,998
2011-09-26 Perry Gregory D (Chief Financial Officer) Sale 8,333 11.00 91,663
2011-09-26 Perry Gregory D (Chief Financial Officer) Option Ex 8,333 4.32 35,998
2011-09-20 Junius Daniel M (Chief Executive Officer) Option Ex 23,336 3.25 75,725
2011-08-15 Perry Gregory D (Chief Financial Officer) Sale 8,333 11.05 92,121
2011-08-15 Perry Gregory D (Chief Financial Officer) Option Ex 8,333 4.32 35,998
2011-07-15 Perry Gregory D (Chief Financial Officer) Sale 8,333 15.12 126,019
2011-07-15 Perry Gregory D (Chief Financial Officer) Option Ex 8,333 4.32 35,998
2011-07-15 Sayare Mitchel Sale 10,000 15.02 150,200
2011-06-29 Perry Gregory D (Chief Financial Officer) Sale 8,333 12.07 100,570
2011-06-29 Perry Gregory D (Chief Financial Officer) Option Ex 8,333 4.32 35,998
2011-06-24 Sayare Mitchel Sale 10,000 11.70 117,000
2011-06-10 Sayare Mitchel Sale 10,000 11.69 116,920
2011-05-27 Sayare Mitchel Sale 10,000 12.24 122,400
2011-05-13 Sayare Mitchel Sale 10,000 13.23 132,330
2011-04-29 Sayare Mitchel Sale 20,000 13.28 265,540
2011-04-15 Sayare Mitchel Sale 20,000 12.11 242,180
2011-03-31 Sayare Mitchel Sale 25,000 8.91 222,874
2011-03-18 Sayare Mitchel Sale 25,000 8.50 212,600
2010-11-01 Carter David Warren Sale 45,000 8.00 359,775
2009-11-24 Lambert John (Executive Vice President) Sale 27,025 8.45 228,442
2009-11-24 Lambert John (Executive Vice President) Option Ex 34,320 6.78 232,723
2009-11-20 Sayare Mitchel Sale 3,263 8.02 26,169
2009-11-20 Sayare Mitchel Option Ex 3,641 6.78 24,689
2009-11-20 Lambert John (Executive Vice President) Sale 21,117 8.41 177,615
2009-11-20 Lambert John (Executive Vice President) Option Ex 21,117 6.78 143,194
2009-11-19 Sayare Mitchel Sale 73,000 8.05 587,431
2009-11-19 Sayare Mitchel Option Ex 81,359 6.78 551,695
2009-11-18 Lambert John (Executive Vice President) Sale 14,563 8.41 122,445
2009-11-18 Lambert John (Executive Vice President) Option Ex 14,563 6.78 98,751
2009-11-06 Sayare Mitchel Sale 50,000 7.87 393,500
2009-11-05 Sayare Mitchel Sale 150,000 7.38 1,107,000
2009-11-03 Carter David Warren Sale 20,000 6.78 135,520
2009-11-02 Carter David Warren Sale 20,000 6.75 135,040
2009-07-31 Korsant Philip B (10% Owner) Sale 3,500,000 8.64 30,240,000
2009-01-05 Sayare Mitchel (Chairman of the Board) Option Ex 80,000 2.25 180,000
2008-12-08 Lambert John (Executive Vice President) Option Ex 27,000 2.25 60,750
2008-12-03 Lambert John (Executive Vice President) Sale 11,600 3.59 41,667
2008-12-03 Lambert John (Executive Vice President) Option Ex 11,600 2.25 26,100
2008-11-28 Lambert John (Executive Vice President) Sale 15,400 3.82 58,812
2008-11-28 Lambert John (Executive Vice President) Option Ex 15,400 2.25 34,650
2008-06-17 Carter David Warren Option Ex 50,000 1.38 68,750
2007-11-30 Sayare Mitchel (Chief Executive Officer) Sale 1,204 4.86 5,855
2007-11-30 Sayare Mitchel (Chief Executive Officer) Option Ex 129,166 .84 109,016
2007-11-29 Sayare Mitchel (Chief Executive Officer) Sale 59,200 4.74 280,667
2007-11-29 Sayare Mitchel (Chief Executive Officer) Option Ex 59,200 .84 49,964
2007-11-28 Sayare Mitchel (Chief Executive Officer) Sale 29,300 4.84 141,724
2007-11-28 Sayare Mitchel (Chief Executive Officer) Option Ex 29,300 .84 24,729
2007-11-27 Sayare Mitchel (Chief Executive Officer) Sale 11,500 4.83 55,602
2007-11-27 Sayare Mitchel (Chief Executive Officer) Option Ex 11,500 .84 9,706
2007-10-29 Carter David Warren Option Ex 25,000 .84 21,100
2007-08-21 Junius Daniel M (Chief Financial Officer) Buy 10,000 4.47 44,700
2007-08-20 Junius Daniel M (Chief Financial Officer) Buy 10,000 4.41 44,090
2007-08-17 Junius Daniel M (Chief Financial Officer) Buy 10,000 4.50 44,990
2007-08-16 Junius Daniel M (Chief Financial Officer) Buy 10,000 4.34 43,440
2007-08-15 Junius Daniel M (Chief Financial Officer) Buy 10,000 4.47 44,680
2007-08-10 Sayare Mitchel (Chief Executive Officer) Option Ex 25,000 1.31 32,800
2007-07-30 Sayare Mitchel (Chief Executive Officer) Option Ex 50,000 1.31 65,600
2007-06-04 Blattler Walter (Executive Vice President) Sale 43,333 5.88 254,754
2007-06-04 Blattler Walter (Executive Vice President) Option Ex 43,333 5.35 231,831
2007-05-16 Pien Howard H Option Ex 2,168 5.03 10,905
2007-04-13 Blattler Walter (Executive Vice President) Sale 191,360 5.83 1,097,990
2007-04-12 Carter David Warren Option Ex 10,000 1.62 16,250
2007-03-27 Blattler Walter (Executive Vice President) Option Ex 191,360 2.85 546,332
2007-03-26 Blattler Walter (Executive Vice President) Sale 57,224 4.67 267,236
2007-03-26 Blattler Walter (Executive Vice President) Option Ex 57,224 3.55 203,145
2007-03-23 Blattler Walter (Executive Vice President) Sale 545,000 4.76 2,593,110
2007-03-23 Blattler Walter (Executive Vice President) Option Ex 545,000 2.90 1,581,044
2007-03-22 Blattler Walter (Executive Vice President) Sale 52,000 4.66 242,164
2007-03-22 Blattler Walter (Executive Vice President) Option Ex 52,000 1.08 56,056
2006-12-07 Lambert John (Senior Vice President) Sale 50,000 5.58 278,900
2006-12-07 Lambert John (Senior Vice President) Option Ex 50,000 1.31 65,600
2006-10-13 Lambert John (Senior Vice President) Sale 14,944 4.00 59,776
2006-10-13 Lambert John (Senior Vice President) Option Ex 14,944 .84 12,612
2006-10-12 Lambert John (Senior Vice President) Sale 15,950 4.00 63,800
2006-10-12 Lambert John (Senior Vice President) Option Ex 15,950 .84 13,461
2006-10-11 Lambert John (Senior Vice President) Sale 9,373 4.00 37,492
2006-10-11 Lambert John (Senior Vice President) Option Ex 9,373 .84 7,910
2006-10-10 Lambert John (Senior Vice President) Sale 700 4.00 2,800
2006-10-10 Lambert John (Senior Vice President) Option Ex 700 .84 590
2006-03-21 Sayare Mitchel (Chief Executive Officer) Option Ex 64,625 2.50 161,562
2006-03-06 Blattler Walter (Executive Vice President) Sale 100,000 4.51 450,900
2006-03-06 Blattler Walter (Executive Vice President) Option Ex 150,000 2.50 375,000
2006-03-03 Lambert John (Senior Vice President) Sale 50,000 4.50 225,100
2006-03-03 Lambert John (Senior Vice President) Option Ex 50,000 2.50 125,000
2006-01-31 Sayare Mitchel (Chief Executive Officer) Buy 60,375 2.50 150,937

Insider trading activities including stock purchases, stock sales, and option exercises of IMGN listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Immunogen Inc (symbol IMGN, CIK number 855654) see the Securities and Exchange Commission (SEC) website.