Insider Trading activities of Arbinet Thexchange Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Arbinet Thexchange Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Arbinet Thexchange Inc since year 2005. Table 2 shows the detailed insider transactions of Arbinet Thexchange Inc since 2005. The reporting company's ticker symbol is ARBX. The reporting company's CIK number is 1136655.
The total value of stock buying since 2005 is $9,640,523.
The total value of stock sales since 2005 is $4,996,282.
The total value of stock option exercises since 2005 is $250,427.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Arbinet Thexchange Inc (ARBX).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2011-02 0 $0 0 $0 26,749 $177,282
2011-01 102,308 $933,550 0 $0 0 $0
2010-12 111,103 $873,263 100 $744 0 $0
2010-06 143,407 $278,209 0 $0 0 $0
2010-05 126,963 $245,057 0 $0 0 $0
2010-03 152,475 $301,200 201,602 $400,460 0 $0
2010-02 76,188 $153,863 0 $0 0 $0
2009-12 4,800 $9,554 0 $0 0 $0
2009-09 0 $0 5,000 $11,250 0 $0
2009-06 9,000 $14,400 0 $0 0 $0
2009-04 70,000 $115,500 0 $0 0 $0
2009-03 14,872 $22,308 0 $0 0 $0
2009-02 73,027 $116,379 0 $0 0 $0
2009-01 187,357 $285,851 0 $0 0 $0
2008-12 28,850 $46,717 0 $0 0 $0
2008-11 80,800 $121,275 0 $0 0 $0
2008-10 33,032 $78,926 0 $0 0 $0
2008-09 15,103 $41,517 0 $0 0 $0
2008-08 57,400 $203,770 0 $0 0 $0
2008-07 5,599 $20,156 0 $0 0 $0
2008-06 175,000 $659,000 0 $0 0 $0
2008-05 250,000 $837,500 0 $0 0 $0
2008-04 154,200 $550,342 0 $0 0 $0
2008-03 298,900 $1,114,353 0 $0 0 $0
2008-02 88,900 $444,233 0 $0 0 $0
2008-01 328,300 $1,852,332 0 $0 0 $0
2007-12 38,100 $227,635 505,984 $3,035,904 0 $0
2007-11 0 $0 4,493 $26,958 0 $0
2007-10 0 $0 33,264 $199,869 0 $0
2007-09 0 $0 13,560 $81,360 0 $0
2007-07 0 $0 151,826 $925,085 0 $0
2007-06 0 $0 49,400 $299,442 0 $0
2006-10 0 $0 0 $0 2,500 $4,825
2006-06 0 $0 3,000 $15,210 0 $0
2006-05 0 $0 0 $0 5,055 $808
2006-04 0 $0 0 $0 421,960 $67,512
2005-08 15,050 $93,633 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Arbinet Thexchange Inc insiders (ARBX)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2011-02-28 Kaplan Randall S (Director) Option Ex 3,126 6.88 21,506
2011-02-18 Odonnell Shawn Francis (CEO & PRESIDENT) Option Ex 18,749 6.52 122,243
2011-02-18 Penney John B (Director) Option Ex 1,750 6.88 12,040
2011-02-17 Kaplan Randall S (Director) Option Ex 3,124 6.88 21,493
2011-01-13 Archer Capital Management, L.p. (10% Owner) Buy 6,524 9.32 60,836
2011-01-12 Archer Capital Management, L.p. (10% Owner) Buy 9,799 9.41 92,208
2011-01-11 Archer Capital Management, L.p. (10% Owner) Buy 58,900 9.50 559,373
2011-01-10 Archer Capital Management, L.p. (10% Owner) Buy 2,832 8.56 24,241
2011-01-05 Archer Capital Management, L.p. (10% Owner) Buy 3,065 8.24 25,270
2011-01-04 Archer Capital Management, L.p. (10% Owner) Buy 21,188 8.10 171,622
2010-12-31 Archer Capital Management, L.p. (10% Owner) Buy 400 8.07 3,228
2010-12-30 Archer Capital Management, L.p. (10% Owner) Buy 700 8.02 5,614
2010-12-29 Archer Capital Management, L.p. (10% Owner) Buy 1,398 8.18 11,435
2010-12-27 Archer Capital Management, L.p. (10% Owner) Buy 124 7.79 965
2010-12-17 Archer Capital Management, L.p. (10% Owner) Buy 21,799 8.12 176,898
2010-12-16 Archer Capital Management, L.p. (10% Owner) Buy 32,251 7.98 257,524
2010-12-15 Archer Capital Management, L.p. (10% Owner) Buy 42,801 7.75 331,707
2010-12-13 Archer Capital Management, L.p. (10% Owner) Buy 791 7.61 6,019
2010-12-10 Archer Capital Management, L.p. (10% Owner) Buy 5,185 7.51 38,939
2010-12-10 Archer Capital Management, L.p. (10% Owner) Sale 100 7.44 744
2010-12-09 Archer Capital Management, L.p. (10% Owner) Buy 5,654 7.24 40,934
2010-06-03 Singer Karen (10% Owner) Buy 143,407 1.94 278,209
2010-05-28 Singer Karen (10% Owner) Buy 40,000 1.95 77,920
2010-05-27 Singer Karen (10% Owner) Buy 300 1.86 558
2010-05-24 Singer Karen (10% Owner) Buy 6,071 1.86 11,292
2010-05-20 Singer Karen (10% Owner) Buy 1,000 1.85 1,850
2010-05-19 Singer Karen (10% Owner) Buy 9,875 1.85 18,268
2010-05-18 Singer Karen (10% Owner) Buy 33,467 1.92 64,390
2010-05-17 Singer Karen (10% Owner) Buy 1,000 1.93 1,930
2010-05-14 Singer Karen (10% Owner) Buy 800 1.93 1,544
2010-05-13 Singer Karen (10% Owner) Buy 200 1.92 384
2010-05-12 Singer Karen (10% Owner) Buy 613 1.93 1,183
2010-05-11 Singer Karen (10% Owner) Buy 600 1.96 1,176
2010-05-10 Singer Karen (10% Owner) Buy 1,300 1.96 2,548
2010-05-06 Singer Karen (10% Owner) Buy 26,000 1.96 50,856
2010-05-05 Singer Karen (10% Owner) Buy 5,737 1.94 11,158
2010-03-22 Conway Richard F Sale 158,649 1.98 314,125
2010-03-22 Singer Karen (10% Owner) Buy 125,000 1.97 246,250
2010-03-19 Conway Richard F Sale 42,953 2.01 86,335
2010-03-19 Singer Karen (10% Owner) Buy 10,000 2.00 20,000
2010-03-02 Singer Karen (10% Owner) Buy 15,000 2.00 30,000
2010-03-01 Singer Karen (10% Owner) Buy 2,475 2.00 4,950
2010-02-25 Singer Karen (10% Owner) Buy 4,900 1.98 9,702
2010-02-23 Singer Karen (10% Owner) Buy 10,000 2.02 20,200
2010-02-22 Singer Karen (10% Owner) Buy 45,271 2.02 91,447
2010-02-16 Singer Karen (10% Owner) Buy 16,017 2.03 32,514
2009-12-29 Singer Karen (10% Owner) Buy 2,500 2.00 5,000
2009-12-18 Singer Karen (10% Owner) Buy 2,300 1.98 4,554
2009-09-10 Heap Steven (Chief Technology Officer) Sale 5,000 2.25 11,250
2009-06-01 Singer Karen (10% Owner) Buy 9,000 1.60 14,400
2009-04-13 Singer Karen (10% Owner) Buy 70,000 1.65 115,500
2009-03-19 Singer Karen (10% Owner) Buy 10,500 1.50 15,750
2009-03-04 Singer Karen (10% Owner) Buy 4,372 1.50 6,558
2009-02-25 Singer Karen (10% Owner) Buy 8,000 1.55 12,400
2009-02-19 Singer Karen (10% Owner) Buy 3,650 1.60 5,840
2009-02-06 Singer Karen (10% Owner) Buy 60,100 1.60 96,160
2009-02-05 Singer Karen (10% Owner) Buy 1,277 1.55 1,979
2009-01-20 Singer Karen (10% Owner) Buy 208 1.53 318
2009-01-15 Singer Karen (10% Owner) Buy 150,000 1.53 229,200
2009-01-14 Singer Karen (10% Owner) Buy 13,194 1.51 19,922
2009-01-13 Singer Karen (10% Owner) Buy 23,955 1.52 36,411
2008-12-22 Singer Karen (10% Owner) Buy 3,850 1.55 5,967
2008-12-11 Singer Karen (10% Owner) Buy 25,000 1.63 40,750
2008-11-21 Singer Karen (10% Owner) Buy 75,000 1.44 108,225
2008-11-10 Singer Karen (10% Owner) Buy 5,800 2.25 13,050
2008-10-14 Singer Karen (10% Owner) Buy 1,300 2.11 2,743
2008-10-07 Singer Karen (10% Owner) Buy 2,899 2.32 6,725
2008-10-06 Singer Karen (10% Owner) Buy 23,455 2.39 56,127
2008-10-02 Singer Karen (10% Owner) Buy 3,678 2.45 8,996
2008-10-01 Singer Karen (10% Owner) Buy 1,700 2.55 4,335
2008-09-30 Singer Karen (10% Owner) Buy 11,650 2.55 29,707
2008-09-16 Singer Karen (10% Owner) Buy 200 3.33 666
2008-09-12 Singer Karen (10% Owner) Buy 1,223 3.42 4,182
2008-09-11 Singer Karen (10% Owner) Buy 2,030 3.43 6,962
2008-08-28 Singer Karen (10% Owner) Buy 57,400 3.55 203,770
2008-07-16 Singer Karen (10% Owner) Buy 5,599 3.60 20,156
2008-06-20 Singer Karen (10% Owner) Buy 75,000 3.72 279,000
2008-06-09 Singer Karen (10% Owner) Buy 100,000 3.80 380,000
2008-05-30 Singer Karen (10% Owner) Buy 250,000 3.35 837,500
2008-04-28 Singer Karen (10% Owner) Buy 73,300 3.59 263,147
2008-04-14 Singer Karen (10% Owner) Buy 80,900 3.55 287,195
2008-03-27 Singer Karen (10% Owner) Buy 125,000 3.60 450,000
2008-03-26 Singer Karen (10% Owner) Buy 125,000 3.84 480,000
2008-03-17 Singer Karen (10% Owner) Buy 48,900 3.77 184,353
2008-02-28 Singer Karen (10% Owner) Buy 88,900 5.00 444,233
2008-01-18 Singer Karen (10% Owner) Buy 250,000 5.60 1,400,000
2008-01-14 Singer Karen (10% Owner) Buy 30,000 5.72 171,720
2008-01-10 Singer Karen (10% Owner) Buy 37,500 5.82 218,100
2008-01-08 Singer Karen (10% Owner) Buy 9,800 5.78 56,683
2008-01-07 Singer Karen (10% Owner) Buy 1,000 5.83 5,829
2007-12-31 Singer Karen (10% Owner) Buy 6,500 5.87 38,155
2007-12-28 Singer Karen (10% Owner) Buy 600 5.80 3,480
2007-12-20 Singer Karen (10% Owner) Buy 31,000 6.00 186,000
2007-12-17 Mashinsky Alex (Director) Sale 500,000 6.00 3,000,000
2007-12-13 Mashinsky Alex (Director) Sale 959 6.00 5,754
2007-12-11 Mashinsky Alex (Director) Sale 1,300 6.00 7,800
2007-12-10 Mashinsky Alex (Director) Sale 3,725 6.00 22,350
2007-11-20 Mashinsky Alex (Director) Sale 1,400 6.00 8,400
2007-11-07 Mashinsky Alex (Director) Sale 700 6.00 4,200
2007-11-06 Mashinsky Alex (Director) Sale 2,393 6.00 14,358
2007-10-31 Mashinsky Alex (Director) Sale 900 6.00 5,400
2007-10-23 Mashinsky Alex (Director) Sale 1,699 6.00 10,194
2007-10-22 Mashinsky Alex (Director) Sale 2,200 6.00 13,200
2007-10-12 Mashinsky Alex (Director) Sale 1,600 6.00 9,600
2007-10-11 Mashinsky Alex (Director) Sale 2,710 6.00 16,262
2007-10-10 Mashinsky Alex (Director) Sale 21,815 6.01 131,173
2007-10-01 Mashinsky Alex (Director) Sale 2,340 6.00 14,040
2007-09-28 Mashinsky Alex (Director) Sale 4,760 6.00 28,560
2007-09-25 Mashinsky Alex (Director) Sale 800 6.00 4,800
2007-09-24 Mashinsky Alex (Director) Sale 8,000 6.00 48,000
2007-07-03 Mashinsky Alex (Director) Sale 51,826 6.15 318,885
2007-07-02 Mashinsky Alex (Director) Sale 100,000 6.06 606,200
2007-06-29 Mashinsky Alex (Director) Sale 35,900 6.03 216,620
2007-06-28 Mashinsky Alex (Director) Sale 13,500 6.14 82,822
2006-10-03 Atkinson Robert C (Director) Option Ex 2,500 1.93 4,825
2006-06-21 Mashinsky Alex (Director) Sale 3,000 5.07 15,210
2006-05-01 Hockemeier J Curt (President and CEO) Option Ex 5,055 .16 808
2006-04-27 Craig Anthony L (Director) Option Ex 184,861 .16 29,577
2006-04-26 Hockemeier J Curt (President and CEO) Option Ex 237,099 .16 37,935
2005-08-18 Craig Anthony L (CEO) Buy 10,050 6.28 63,083
2005-08-08 Hockemeier J Curt (President and CEO) Buy 5,000 6.11 30,550

Insider trading activities including stock purchases, stock sales, and option exercises of ARBX listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Arbinet Thexchange Inc (symbol ARBX, CIK number 1136655) see the Securities and Exchange Commission (SEC) website.