Short History
Symbol Report Date Volume Change % of Float
  ATC - V 2012-11-30 19,862 345 0.02
  ATC - V 2012-11-15 19,517 -816,500 0.02
  ATC - V 2012-10-31 836,017 83,500 0.85
  ATC - V 2012-10-15 752,517 -2,100 0.76
  ATC - V 2012-09-30 754,617 -149,916 0.77
  ATC - V 2012-09-15 904,533 -2,982 0.92
  ATC - V 2012-08-31 907,515 5,876 0.92
  ATC - V 2012-08-15 901,639 -10,800 0.92
  ATC - V 2012-07-31 912,439 -1,258 0.93
  ATC - V 2012-07-15 913,697 39,838 0.93
  ATC - V 2012-06-30 873,859 624,646 0.90
  ATC - V 2012-06-15 249,213 9,122 0.26
  ATC - V 2012-05-31 240,091 -44,060 0.25
  ATC - V 2012-05-15 284,151 48,505 0.29
  ATC - V 2012-04-30 235,646 86,269 0.24
  ATC - V 2012-04-15 149,377 16,493 0.15
  ATC - V 2012-03-31 132,884 97,700 0.14
  ATC - V 2012-03-15 35,184 3,336 0.04
  ATC - V 2012-02-28 31,848 6,600 0.03
  ATC - V 2012-02-15 25,248 -5,835 0.03
  ATC - V 2012-01-31 31,083 19,395 0.03
  ATC - V 2012-01-15 11,688 6,500 0.01
  ATC - V 2011-12-31 5,188 -104,130 0.01
  ATC - V 2011-12-15 109,318 -4,670 0.11
  ATC - V 2011-11-30 113,988 57,500 0.12
  ATC - V 2011-11-15 56,488 37,300 0.06
  ATC - V 2011-10-31 19,188 -26,700 0.02
  ATC - V 2011-10-15 45,888 -152,450 0.05
  ATC - V 2011-09-30 198,338 97,600 0.21
  ATC - V 2011-09-15 100,738 -3,812 0.10
  ATC - V 2011-08-31 104,550 -34,500 0.11
  ATC - V 2011-08-15 139,050 -182,000 0.14
  ATC - V 2011-07-31 321,050 -111,975 0.33
  ATC - V 2011-07-15 385,495 -126,055 0.40
  ATC - V 2011-06-30 511,550 322,450 0.53
  ATC - V 2011-06-15 189,100 -33,050 0.20
  ATC - V 2011-05-31 222,150 102,500 0.23
  ATC - V 2011-05-15 119,650 -89,270 0.12
  ATC - V 2011-04-30 208,920 -116,500 0.22
  ATC - V 2011-04-15 325,420 -296,470 0.34
  ATC - V 2011-03-31 621,890 -136,550 0.65
  ATC - V 2011-03-15 758,440 -14,697 0.79
  ATC - V 2011-02-28 773,137 204,520 0.81
  ATC - V 2011-02-15 568,617 294,407 0.62
  ATC - V 2011-01-31 274,210 -30,760  
  ATC - V 2011-01-15 304,970 -16,790  
  ATC - V 2010-12-31 321,760 -38,800  
  ATC - V 2010-12-15 360,560 270,460  
  ATC - V 2010-11-30 90,100 -2,500  
  ATC - V 2010-11-15 92,600 71,100  
  ATC - V 2010-10-31 21,500 1,300  
  ATC - V 2010-10-15 20,200 200  
  ATC - V 2010-09-30 20,000 -8,400  
  ATC - V 2010-09-15 28,400 28,300  
  ATC - V 2010-08-31 100 -3,600  
  ATC - V 2010-08-15 3,700 -6,300  
  ATC - V 2010-07-31 10,000 9,200  
  ATC - V 2010-07-15 800 -3,800  
  ATC - V 2010-06-30 4,600 3,400  
  ATC - V 2010-06-15 1,200 400  
  ATC - V 2010-05-31 800    
  ATC - V 2010-05-15 800 800  
  ATC - V 2010-03-31   -16,200  
  ATC - V 2010-03-15 16,200 16,200  
  ATC - V 2010-02-15   -7,000  
  ATC - V 2010-01-31 7,000 7,000  
  ATC - V 2009-07-31   -5,000  
  ATC - V 2009-07-15 5,000 -46,000  
  ATC - V 2009-06-30 51,000 51,000  
  ATC - V 2009-02-15   -111  
  ATC - V 2009-01-31 111 111  
  ATC - V 2008-10-15   -126  
  ATC - V 2008-09-30 126 126  
  ATC - V 2008-08-31   -10,000  
  ATC - V 2008-08-15 10,000 10,000  
  ATC - V 2008-04-15   -700  
  ATC - V 2008-03-31 700 321  
  ATC - V 2008-03-15 379 125  
  ATC - V 2008-02-29 254 254  
  ATC - V 2008-01-15   -118,943  
  ATC - V 2007-12-31 118,943 50,200  
  ATC - V 2007-12-15 68,743 68,743  
  ATC - V 2007-11-15   -75,000  
  ATC - V 2007-10-31 75,000 74,817  
  ATC - V 2007-10-15 183 183  
  ATC - V 2007-08-31   -242  
  ATC - V 2007-08-15 242 242  
  ATC - V 2007-06-30   -67,500  
  ATC - V 2007-06-15 67,500 67,500  
  ATC - V 2007-05-15   -4,120  
  ATC - V 2007-04-30 4,120 4,120  
  ATC - V 2006-09-30   -344  
  ATC - V 2006-09-15 344 344  
  ATC - V 2006-08-31   -520,000  
  ATC - V 2006-08-15 520,000 520,000  
  ATC - V 2005-04-30   -5,000  
  ATC - V 2005-04-15 5,000 5,000  
  ATC - V 2005-03-15   -3,934  
  ATC - V 2005-02-28 3,934 3,500  
  ATC - V 2005-02-15 434 434  
  ATC - V 2005-01-15   -13,000  
  ATC - V 2004-12-31 13,000 13,000  
  ATC - V 2004-12-15   -1,500  
  ATC - V 2004-11-30 1,500 -3,500  
  ATC - V 2004-11-15 5,000    
  ATC - V 2004-10-31 5,000    
  ATC - V 2004-10-15 5,000 -30,000  
  ATC - V 2004-09-30 35,000 30,000  
  ATC - V 2004-09-15 5,000    
  ATC - V 2004-08-31 5,000 -3,000  
  ATC - V 2004-08-15 8,000 -37,000  
  ATC - V 2004-07-31 45,000 41,621  
  ATC - V 2004-07-15 3,379 255  
  ATC - V 2004-06-30 3,124    
  ATC - V 2004-06-15 3,124 2,997  
  ATC - V 2004-05-31 127 -262,611  
  ATC - V 2004-05-15 262,738 -89,017  
  ATC - V 2004-04-30 351,755 130,255  
  ATC - V 2004-04-15 221,500 116,357  
  ATC - V 2004-03-31 105,143 92,433  
  ATC - V 2004-03-15 12,710 12,710  
  ATC - V 2004-02-29   -670  
  ATC - V 2004-02-15 670 100  
  ATC - V 2004-01-31 570 -80,099  
  ATC - V 2004-01-15 80,669 80,669  
  ATC - V 2003-12-31   -54,338  
  ATC - V 2003-12-15 54,338 54,038  
  ATC - V 2003-11-30 300 200  
  ATC - V 2003-11-15 100 100  
  ATC - V 2002-06-30   -8,532  
  ATC - V 2002-06-15 8,532 -241,468  
  ATC - V 2002-05-31 250,000 250,000  
  ATC - V 2001-07-15   -1,531  
  ATC - V 2001-06-30 1,531 1,531