Insider Trading activities of Beacon Power Corp insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Beacon Power Corp since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Beacon Power Corp since year 2005. Table 2 shows the detailed insider transactions of Beacon Power Corp since 2005. The reporting company's ticker symbol is BCON. The reporting company's CIK number is 1103345.
The total value of stock buying since 2005 is $17,783,697.
The total value of stock sales since 2005 is $19,318,462.
The total value of stock option exercises since 2005 is $21,900.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Beacon Power Corp (BCON).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2011-05 8,000 $9,920 0 $0 0 $0
2010-08 60,000 $19,260 0 $0 0 $0
2010-05 50,000 $20,750 0 $0 0 $0
2009-05 100,000 $76,750 0 $0 0 $0
2009-01 0 $0 421,049 $222,016 0 $0
2008-12 0 $0 1,880,860 $1,090,100 0 $0
2008-11 0 $0 620,921 $386,337 0 $0
2008-09 0 $0 453,417 $551,743 0 $0
2008-08 0 $0 1,190,930 $1,564,375 0 $0
2008-07 0 $0 4,061,234 $5,720,711 0 $0
2008-06 0 $0 352,000 $608,394 0 $0
2008-05 0 $0 876,792 $1,117,319 0 $0
2008-04 0 $0 1,348,200 $1,474,575 0 $0
2008-03 0 $0 741,395 $763,358 0 $0
2008-02 0 $0 301,386 $376,170 0 $0
2007-10 7,087,396 $14,131,477 0 $0 0 $0
2007-07 1,800,000 $3,524,000 2,000 $3,240 0 $0
2007-03 2,000 $1,540 0 $0 0 $0
2006-11 0 $0 49,208 $41,919 0 $0
2006-10 0 $0 60,000 $72,374 60,000 $21,900
2006-08 0 $0 21,842 $27,083 0 $0
2006-06 0 $0 52,000 $68,280 0 $0
2006-04 0 $0 1,785,600 $3,159,160 0 $0
2005-12 0 $0 146,177 $280,659 0 $0
2005-11 0 $0 145,000 $264,915 0 $0
2005-08 0 $0 332,549 $1,525,734 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Beacon Power Corp insiders (BCON)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2011-05-18 Kletter Daniel E (Director) Buy 8,000 1.24 9,920
2010-08-16 Kletter Daniel E (Director) Buy 60,000 .32 19,260
2010-05-28 Adik Stephen P (Director) Buy 50,000 .42 20,750
2009-05-26 Smith Jack P (Director) Buy 25,000 .76 18,900
2009-05-22 Kletter Daniel E (Director) Buy 50,000 .75 37,350
2009-05-19 Rose Virgil G (Director) Buy 25,000 .82 20,500
2009-01-05 Gelbaum Monica Chavez (Other) Sale 176,500 .52 91,427
2009-01-02 Gelbaum Monica Chavez (Other) Sale 244,549 .53 130,589
2008-12-31 Gelbaum Monica Chavez (Other) Sale 169,721 .52 89,103
2008-12-29 Gelbaum Monica Chavez (Other) Sale 53,748 .52 28,217
2008-12-26 Gelbaum Monica Chavez (Other) Sale 31,200 .52 16,099
2008-12-20 Gelbaum Monica Chavez (Other) Sale 189,000 .54 102,060
2008-12-19 Gelbaum Monica Chavez (Other) Sale 205,284 .66 136,513
2008-12-18 Gelbaum Monica Chavez (Other) Sale 115,396 .63 72,699
2008-12-17 Gelbaum Monica Chavez (Other) Sale 199,942 .62 123,964
2008-12-16 Gelbaum Monica Chavez (Other) Sale 62,900 .57 35,790
2008-12-15 Gelbaum Monica Chavez (Other) Sale 43,300 .57 24,507
2008-12-12 Gelbaum Monica Chavez (Other) Sale 46,314 .55 25,611
2008-12-11 Gelbaum Monica Chavez (Other) Sale 97,173 .57 54,999
2008-12-10 Gelbaum Monica Chavez (Other) Sale 74,603 .57 42,672
2008-12-09 Gelbaum Monica Chavez (Other) Sale 221,733 .58 129,492
2008-12-08 Gelbaum Monica Chavez (Other) Sale 93,393 .56 51,833
2008-12-05 Gelbaum Monica Chavez (Other) Sale 4,400 .55 2,420
2008-12-04 Gelbaum Monica Chavez (Other) Sale 57,800 .56 32,079
2008-12-03 Gelbaum Monica Chavez (Other) Sale 50,000 .55 27,700
2008-12-02 Gelbaum Monica Chavez (Other) Sale 106,288 .56 59,202
2008-12-01 Gelbaum Monica Chavez (Other) Sale 58,665 .60 35,140
2008-11-26 Gelbaum Monica Chavez (Other) Sale 146,143 .62 90,316
2008-11-25 Gelbaum Monica Chavez (Other) Sale 103,767 .60 61,845
2008-11-24 Gelbaum Monica Chavez (Other) Sale 60,513 .62 37,760
2008-11-21 Gelbaum Monica Chavez (Other) Sale 214,972 .57 123,393
2008-11-20 Gelbaum Monica Chavez (Other) Sale 21,312 .66 14,023
2008-11-19 Gelbaum Monica Chavez (Other) Sale 74,214 .80 59,000
2008-09-19 Gelbaum Monica Chavez (Other) Sale 9,600 1.34 12,883
2008-09-18 Gelbaum Monica Chavez (Other) Sale 221,406 1.25 276,093
2008-09-17 Gelbaum Monica Chavez (Other) Sale 20,100 1.20 24,099
2008-09-16 Gelbaum Monica Chavez (Other) Sale 139,815 1.18 164,422
2008-09-15 Gelbaum Monica Chavez (Other) Sale 22,400 1.14 25,535
2008-09-12 Gelbaum Monica Chavez (Other) Sale 4,900 1.14 5,585
2008-09-11 Gelbaum Monica Chavez (Other) Sale 200 1.14 227
2008-09-10 Gelbaum Monica Chavez (Other) Sale 21,097 1.16 24,556
2008-09-09 Gelbaum Monica Chavez (Other) Sale 1,002 1.27 1,271
2008-09-08 Gelbaum Monica Chavez (Other) Sale 11,097 1.31 14,570
2008-09-02 Gelbaum Monica Chavez (Other) Sale 1,800 1.39 2,502
2008-08-29 Gelbaum Monica Chavez (Other) Sale 8,800 1.41 12,408
2008-08-28 Gelbaum Monica Chavez (Other) Sale 22,200 1.42 31,524
2008-08-26 Gelbaum Monica Chavez (Other) Sale 132,897 1.37 182,068
2008-08-20 Gelbaum Monica Chavez (Other) Sale 2,800 1.32 3,696
2008-08-18 Gelbaum Monica Chavez (Other) Sale 64,303 1.34 86,166
2008-08-15 Gelbaum Monica Chavez (Other) Sale 120,900 1.34 162,006
2008-08-14 Gelbaum Monica Chavez (Other) Sale 200,000 1.34 268,000
2008-08-08 Gelbaum Monica Chavez (Other) Sale 297,786 1.24 369,254
2008-08-07 Gelbaum Monica Chavez (Other) Sale 241,080 1.34 323,047
2008-08-06 Gelbaum Monica Chavez (Other) Sale 100,164 1.26 126,206
2008-07-31 Gelbaum Monica Chavez (Other) Sale 89,200 1.29 115,068
2008-07-30 Gelbaum Monica Chavez (Other) Sale 105,996 1.33 140,974
2008-07-29 Gelbaum Monica Chavez (Other) Sale 102,806 1.31 134,675
2008-07-28 Gelbaum Monica Chavez (Other) Sale 157,306 1.31 206,070
2008-07-25 Gelbaum Monica Chavez (Other) Sale 131,126 1.34 175,708
2008-07-24 Gelbaum Monica Chavez (Other) Sale 111,548 1.39 155,051
2008-07-23 Gelbaum Monica Chavez (Other) Sale 111,957 1.37 153,381
2008-07-22 Gelbaum Monica Chavez (Other) Sale 97,485 1.39 135,504
2008-07-21 Gelbaum Monica Chavez (Other) Sale 222,601 1.39 309,415
2008-07-18 Gelbaum Monica Chavez (Other) Sale 402,360 1.41 567,327
2008-07-17 Gelbaum Monica Chavez (Other) Sale 248,118 1.35 334,959
2008-07-16 Gelbaum Monica Chavez (Other) Sale 214,576 1.41 302,552
2008-07-15 Gelbaum Monica Chavez (Other) Sale 265,139 1.32 349,983
2008-07-14 Gelbaum Monica Chavez (Other) Sale 180,505 1.30 234,656
2008-07-11 Gelbaum Monica Chavez (Other) Sale 170,380 1.30 221,494
2008-07-10 Gelbaum Monica Chavez (Other) Sale 119,600 1.51 180,596
2008-07-09 Gelbaum Monica Chavez (Other) Sale 156,450 1.47 229,981
2008-07-08 Gelbaum Monica Chavez (Other) Sale 416,106 1.59 661,608
2008-07-07 Gelbaum Monica Chavez (Other) Sale 743,075 1.46 1,084,889
2008-07-03 Gelbaum Monica Chavez (Other) Sale 14,900 1.80 26,820
2008-06-13 Gelbaum Monica Chavez (Other) Sale 74,600 1.69 126,074
2008-06-12 Gelbaum Monica Chavez (Other) Sale 56,000 1.73 96,880
2008-06-11 Gelbaum Monica Chavez (Other) Sale 96,400 1.72 165,615
2008-06-10 Gelbaum Monica Chavez (Other) Sale 75,000 1.72 129,225
2008-06-09 Gelbaum Monica Chavez (Other) Sale 50,000 1.81 90,600
2008-05-19 Gelbaum Monica Chavez (Other) Sale 277,774 1.41 390,550
2008-05-16 Gelbaum Monica Chavez (Other) Sale 20,700 1.17 24,177
2008-05-15 Gelbaum Monica Chavez (Other) Sale 29,000 1.16 33,669
2008-05-14 Gelbaum Monica Chavez (Other) Sale 27,500 1.16 31,844
2008-05-13 Gelbaum Monica Chavez (Other) Sale 29,300 1.18 34,574
2008-05-12 Gelbaum Monica Chavez (Other) Sale 50,800 1.19 60,502
2008-05-09 Gelbaum Monica Chavez (Other) Sale 75,800 1.13 85,805
2008-05-08 Gelbaum Monica Chavez (Other) Sale 36,200 1.18 42,716
2008-05-07 Gelbaum Monica Chavez (Other) Sale 72,100 1.17 84,212
2008-05-05 Gelbaum Monica Chavez (Other) Sale 105,500 1.26 133,035
2008-05-02 Gelbaum Monica Chavez (Other) Sale 50,600 1.27 64,262
2008-05-01 Gelbaum Monica Chavez (Other) Sale 101,518 1.30 131,973
2008-04-30 Gelbaum Monica Chavez (Other) Sale 43,700 1.21 52,920
2008-04-29 Gelbaum Monica Chavez (Other) Sale 72,600 1.22 88,862
2008-04-28 Gelbaum Monica Chavez (Other) Sale 13,000 1.18 15,379
2008-04-25 Gelbaum Monica Chavez (Other) Sale 24,100 1.15 27,690
2008-04-24 Gelbaum Monica Chavez (Other) Sale 63,600 1.20 76,129
2008-04-23 Gelbaum Monica Chavez (Other) Sale 132,500 1.24 164,830
2008-04-22 Gelbaum Monica Chavez (Other) Sale 134,778 1.15 155,129
2008-04-21 Gelbaum Monica Chavez (Other) Sale 8,900 1.05 9,327
2008-04-18 Gelbaum Monica Chavez (Other) Sale 11,700 1.04 12,191
2008-04-17 Gelbaum Monica Chavez (Other) Sale 12,700 1.04 13,208
2008-04-16 Gelbaum Monica Chavez (Other) Sale 16,900 1.05 17,795
2008-04-15 Gelbaum Monica Chavez (Other) Sale 10,000 1.03 10,320
2008-04-14 Gelbaum Monica Chavez (Other) Sale 13,900 1.03 14,372
2008-04-11 Gelbaum Monica Chavez (Other) Sale 27,000 1.03 27,864
2008-04-10 Gelbaum Monica Chavez (Other) Sale 36,548 1.10 40,020
2008-04-09 Gelbaum Monica Chavez (Other) Sale 23,700 1.10 26,141
2008-04-08 Gelbaum Monica Chavez (Other) Sale 37,000 1.14 41,995
2008-04-07 Gelbaum Monica Chavez (Other) Sale 116,374 1.09 127,080
2008-04-04 Gelbaum Monica Chavez (Other) Sale 18,200 1.00 18,236
2008-04-03 Gelbaum Monica Chavez (Other) Sale 202,500 1.01 204,321
2008-04-02 Gelbaum Monica Chavez (Other) Sale 85,200 1.00 85,368
2008-04-01 Gelbaum Monica Chavez (Other) Sale 51,500 1.02 52,272
2008-03-31 Gelbaum Monica Chavez (Other) Sale 17,000 .92 15,691
2008-03-28 Gelbaum Monica Chavez (Other) Sale 7,700 .93 7,176
2008-03-27 Gelbaum Monica Chavez (Other) Sale 19,000 .93 17,670
2008-03-26 Gelbaum Monica Chavez (Other) Sale 20,200 .96 19,291
2008-03-25 Gelbaum Monica Chavez (Other) Sale 27,300 .97 26,508
2008-03-20 Gelbaum Monica Chavez (Other) Sale 16,700 .94 15,647
2008-03-19 Gelbaum Monica Chavez (Other) Sale 35,013 .92 32,281
2008-03-18 Gelbaum Monica Chavez (Other) Sale 63,754 .89 56,804
2008-03-17 Gelbaum Monica Chavez (Other) Sale 19,500 .96 18,642
2008-03-14 Gelbaum Monica Chavez (Other) Sale 16,484 .99 16,302
2008-03-13 Gelbaum Monica Chavez (Other) Sale 26,140 .99 25,800
2008-03-12 Gelbaum Monica Chavez (Other) Sale 37,800 1.01 38,291
2008-03-11 Gelbaum Monica Chavez (Other) Sale 70,000 .98 68,950
2008-03-10 Gelbaum Monica Chavez (Other) Sale 22,400 1.04 23,363
2008-03-07 Gelbaum Monica Chavez (Other) Sale 55,300 1.04 57,346
2008-03-06 Gelbaum Monica Chavez (Other) Sale 47,546 1.09 51,920
2008-03-05 Gelbaum Monica Chavez (Other) Sale 208,858 1.13 235,174
2008-03-03 Gelbaum Monica Chavez (Other) Sale 30,700 1.19 36,502
2008-02-28 Gelbaum Monica Chavez (Other) Sale 111,000 1.22 134,865
2008-02-27 Gelbaum Monica Chavez (Other) Sale 95,386 1.25 118,850
2008-02-26 Gelbaum Monica Chavez (Other) Sale 95,000 1.29 122,455
2007-10-31 Gelbaum Monica Chavez (Other) Buy 6,194,163 1.98 12,264,442
2007-10-10 Gelbaum Monica Chavez (Other) Buy 301,386 2.20 661,542
2007-10-09 Gelbaum Monica Chavez (Other) Buy 342,500 2.05 702,810
2007-10-08 Gelbaum Monica Chavez (Other) Buy 249,347 2.02 502,683
2007-07-09 Quercus Trust (10% Owner) Buy 500,000 2.10 1,050,000
2007-07-09 Gelbaum Monica Chavez (Other) Buy 500,000 2.10 1,050,000
2007-07-06 Quercus Trust (10% Owner) Buy 400,000 1.78 712,000
2007-07-06 Gelbaum Monica Chavez (Other) Buy 400,000 1.78 712,000
2007-07-05 Spiezio James M (VP of Finance, CFO) Sale 2,000 1.62 3,240
2007-03-19 Smith Jack P (Director) Buy 2,000 .77 1,540
2006-11-28 Gelbaum Monica Chavez (Other) Sale 26,438 .62 16,417
2006-11-17 Capp F William (President and CEO) Sale 13,770 1.12 15,422
2006-11-17 Spiezio James M (VP of Finance, CFO) Sale 9,000 1.12 10,080
2006-10-05 Stanton William (Director) Sale 37,556 1.21 45,442
2006-10-04 Stanton William (Director) Sale 22,444 1.20 26,932
2006-10-04 Stanton William (Director) Option Ex 60,000 .36 21,900
2006-08-18 Capp F William (President and CEO) Sale 13,770 1.24 17,074
2006-08-18 Spiezio James M (VP of Finance, CFO) Sale 8,072 1.24 10,009
2006-06-02 Spiezio James M (VP of Finance, CFO) Sale 17,000 1.34 22,780
2006-06-01 Capp F William (President and CEO) Sale 35,000 1.30 45,500
2006-04-19 Perseus 2000 Expansion Llc (Director) Sale 414,800 1.76 729,218
2006-04-19 Pearl Frank H (Director) Sale 414,800 1.76 729,218
2006-04-18 Perseus 2000 Expansion Llc (Director) Sale 478,000 1.78 850,362
2006-04-18 Pearl Frank H (Director) Sale 478,000 1.78 850,362
2005-12-13 Pearl Frank H (Director) Sale 146,177 1.92 280,659
2005-11-23 Pearl Frank H (10% Owner) Sale 145,000 1.83 264,915
2005-08-25 Pearl Frank H (10% Owner) Sale 332,549 4.59 1,525,734

Insider trading activities including stock purchases, stock sales, and option exercises of BCON listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Beacon Power Corp (symbol BCON, CIK number 1103345) see the Securities and Exchange Commission (SEC) website.