| May 2, 2011 |
ARCB
|
A |
10,600 |
— |
— |
41,800
Direct
|
+33.97%
|
Acquired |
(price as of 2026-08-21)
|
| April 17, 2011 |
ARCB
|
G |
3,024 |
— |
— |
5,659
Indirect
|
+114.76%
|
Acquired |
(price as of 2026-08-21)
|
| April 17, 2011 |
ARCB
|
G |
3,024 |
— |
— |
31,200
Direct
|
-8.84%
|
Disposed |
(price as of 2026-08-21)
|
| April 17, 2011 |
ARCB
|
F |
24 |
$25.48 |
$612 |
34,224
Direct
|
-0.07%
|
Disposed |
449.2%
(price as of 2026-08-21)
|
| March 17, 2011 |
ARCB
|
F |
26 |
$23.92 |
$622 |
34,248
Direct
|
-0.08%
|
Disposed |
485.1%
(price as of 2026-08-21)
|
| Feb. 17, 2011 |
ARCB
|
F |
26 |
$25.26 |
$657 |
34,274
Direct
|
-0.08%
|
Disposed |
454.0%
(price as of 2026-08-21)
|
| Jan. 17, 2011 |
ARCB
|
F |
28 |
$26.16 |
$732 |
34,300
Direct
|
-0.08%
|
Disposed |
435.0%
(price as of 2026-08-21)
|
| Dec. 17, 2010 |
ARCB
|
F |
26 |
$26.10 |
$679 |
34,328
Direct
|
-0.08%
|
Disposed |
436.2%
(price as of 2026-08-21)
|
| Nov. 18, 2010 |
ARCB
|
M |
10,000 |
— |
— |
0
Direct
|
-100.00%
|
Disposed |
(price as of 2026-08-21)
|
| Nov. 18, 2010 |
ARCB
|
S |
10,000 |
$24.70 |
$247,000 |
34,354
Direct
|
-22.55%
|
Disposed |
466.6%
(price as of 2026-08-21)
|
| Nov. 18, 2010 |
ARCB
|
M |
10,000 |
$24.38 |
$243,800 |
44,354
Direct
|
+29.11%
|
Acquired |
474.0%
(price as of 2026-08-21)
|
| Nov. 17, 2010 |
ARCB
|
F |
26 |
$24.15 |
$628 |
34,354
Direct
|
-0.08%
|
Disposed |
479.5%
(price as of 2026-08-21)
|
| Oct. 17, 2010 |
ARCB
|
F |
25 |
$24.51 |
$613 |
34,380
Direct
|
-0.07%
|
Disposed |
471.0%
(price as of 2026-08-21)
|
| Sept. 17, 2010 |
ARCB
|
F |
26 |
$23.60 |
$614 |
34,405
Direct
|
-0.08%
|
Disposed |
493.0%
(price as of 2026-08-21)
|
| Aug. 20, 2010 |
ARCB
|
L |
4 |
$19.87 |
$79 |
2,635
Indirect
|
+0.15%
|
Acquired |
604.3%
(price as of 2026-08-21)
|
| Aug. 17, 2010 |
ARCB
|
F |
26 |
$20.23 |
$526 |
34,431
Direct
|
-0.08%
|
Disposed |
591.8%
(price as of 2026-08-21)
|
| July 28, 2010 |
ARCB
|
A |
10,600 |
— |
— |
34,457
Direct
|
+44.43%
|
Acquired |
(price as of 2026-08-21)
|
| July 17, 2010 |
ARCB
|
F |
25 |
$20.88 |
$522 |
23,857
Direct
|
-0.10%
|
Disposed |
570.2%
(price as of 2026-08-21)
|
| June 17, 2010 |
ARCB
|
F |
26 |
$21.46 |
$558 |
23,882
Direct
|
-0.11%
|
Disposed |
552.1%
(price as of 2026-08-21)
|
| May 20, 2010 |
ARCB
|
L |
3 |
$26.03 |
$78 |
2,631
Indirect
|
+0.11%
|
Acquired |
437.6%
(price as of 2026-08-21)
|
| May 17, 2010 |
ARCB
|
F |
25 |
$28.40 |
$710 |
23,908
Direct
|
-0.10%
|
Disposed |
392.8%
(price as of 2026-08-21)
|
| April 20, 2010 |
ARCB
|
G |
2,628 |
— |
— |
2,628
Indirect
|
—
|
Acquired |
(price as of 2026-08-21)
|
| April 20, 2010 |
ARCB
|
G |
2,628 |
— |
— |
23,933
Direct
|
-9.89%
|
Disposed |
(price as of 2026-08-21)
|
| April 20, 2010 |
ARCB
|
F |
23 |
$30.56 |
$703 |
26,561
Direct
|
-0.09%
|
Disposed |
357.9%
(price as of 2026-08-21)
|
| April 17, 2010 |
ARCB
|
F |
25 |
$29.93 |
$748 |
26,584
Direct
|
-0.09%
|
Disposed |
367.6%
(price as of 2026-08-21)
|
| March 20, 2010 |
ARCB
|
F |
27 |
$29.12 |
$786 |
26,609
Direct
|
-0.10%
|
Disposed |
380.6%
(price as of 2026-08-21)
|
| March 17, 2010 |
ARCB
|
F |
30 |
$29.47 |
$884 |
26,636
Direct
|
-0.11%
|
Disposed |
374.9%
(price as of 2026-08-21)
|
| Feb. 20, 2010 |
ARCB
|
F |
26 |
$25.10 |
$653 |
26,666
Direct
|
-0.10%
|
Disposed |
457.5%
(price as of 2026-08-21)
|
| Feb. 17, 2010 |
ARCB
|
F |
31 |
$25.28 |
$784 |
26,692
Direct
|
-0.12%
|
Disposed |
453.6%
(price as of 2026-08-21)
|
| Jan. 20, 2010 |
ARCB
|
F |
26 |
$26.95 |
$701 |
26,723
Direct
|
-0.10%
|
Disposed |
419.3%
(price as of 2026-08-21)
|
| Jan. 17, 2010 |
ARCB
|
F |
31 |
$27.91 |
$865 |
26,749
Direct
|
-0.12%
|
Disposed |
401.4%
(price as of 2026-08-21)
|
| Dec. 20, 2009 |
ARCB
|
F |
22 |
$31.23 |
$687 |
26,780
Direct
|
-0.08%
|
Disposed |
348.1%
(price as of 2026-08-21)
|
| Dec. 17, 2009 |
ARCB
|
F |
26 |
$30.84 |
$802 |
26,802
Direct
|
-0.10%
|
Disposed |
353.8%
(price as of 2026-08-21)
|
| Nov. 20, 2009 |
ARCB
|
F |
22 |
$24.87 |
$547 |
26,828
Direct
|
-0.08%
|
Disposed |
462.7%
(price as of 2026-08-21)
|
| Nov. 17, 2009 |
ARCB
|
F |
26 |
$25.46 |
$662 |
26,850
Direct
|
-0.10%
|
Disposed |
449.7%
(price as of 2026-08-21)
|
| Oct. 20, 2009 |
ARCB
|
F |
22 |
$30.00 |
$660 |
26,876
Direct
|
-0.08%
|
Disposed |
366.5%
(price as of 2026-08-21)
|
| Oct. 17, 2009 |
ARCB
|
F |
26 |
$29.90 |
$777 |
26,898
Direct
|
-0.10%
|
Disposed |
368.0%
(price as of 2026-08-21)
|
| Sept. 20, 2009 |
ARCB
|
F |
22 |
$32.86 |
$723 |
26,924
Direct
|
-0.08%
|
Disposed |
325.9%
(price as of 2026-08-21)
|
| Sept. 17, 2009 |
ARCB
|
F |
26 |
$32.85 |
$854 |
26,946
Direct
|
-0.10%
|
Disposed |
326.0%
(price as of 2026-08-21)
|
| Aug. 20, 2009 |
ARCB
|
F |
22 |
$29.98 |
$660 |
26,972
Direct
|
-0.08%
|
Disposed |
366.8%
(price as of 2026-08-21)
|
| Aug. 17, 2009 |
ARCB
|
F |
25 |
$28.05 |
$701 |
26,994
Direct
|
-0.09%
|
Disposed |
398.9%
(price as of 2026-08-21)
|
| Aug. 11, 2009 |
ARCB
|
G |
375 |
— |
— |
13,225
Indirect
|
-2.76%
|
Disposed |
(price as of 2026-08-21)
|
| July 28, 2009 |
ARCB
|
G |
400 |
— |
— |
13,600
Indirect
|
-2.86%
|
Disposed |
(price as of 2026-08-21)
|
| July 20, 2009 |
ARCB
|
F |
22 |
$26.39 |
$581 |
41,020
Direct
|
-0.05%
|
Disposed |
430.3%
(price as of 2026-08-21)
|
| July 17, 2009 |
ARCB
|
F |
25 |
$25.83 |
$646 |
41,042
Direct
|
-0.06%
|
Disposed |
441.8%
(price as of 2026-08-21)
|
| June 20, 2009 |
ARCB
|
F |
23 |
$30.15 |
$693 |
41,067
Direct
|
-0.06%
|
Disposed |
364.2%
(price as of 2026-08-21)
|
| June 17, 2009 |
ARCB
|
F |
25 |
$29.13 |
$728 |
41,090
Direct
|
-0.06%
|
Disposed |
380.4%
(price as of 2026-08-21)
|
| May 20, 2009 |
ARCB
|
F |
23 |
$27.71 |
$637 |
41,115
Direct
|
-0.06%
|
Disposed |
405.0%
(price as of 2026-08-21)
|
| May 17, 2009 |
ARCB
|
F |
25 |
$24.40 |
$610 |
41,138
Direct
|
-0.06%
|
Disposed |
473.5%
(price as of 2026-08-21)
|
| April 29, 2009 |
ARCB
|
A |
10,600 |
— |
— |
41,163
Direct
|
+34.68%
|
Acquired |
(price as of 2026-08-21)
|
| April 20, 2009 |
ARCB
|
F |
24 |
$21.93 |
$526 |
30,563
Direct
|
-0.08%
|
Disposed |
538.1%
(price as of 2026-08-21)
|
| April 17, 2009 |
ARCB
|
F |
27 |
$24.49 |
$661 |
30,587
Direct
|
-0.09%
|
Disposed |
471.4%
(price as of 2026-08-21)
|
| March 20, 2009 |
ARCB
|
F |
27 |
$18.60 |
$502 |
30,614
Direct
|
-0.09%
|
Disposed |
652.4%
(price as of 2026-08-21)
|
| March 17, 2009 |
ARCB
|
F |
30 |
$20.32 |
$610 |
30,641
Direct
|
-0.10%
|
Disposed |
588.7%
(price as of 2026-08-21)
|
| Feb. 20, 2009 |
ARCB
|
F |
27 |
$20.31 |
$548 |
30,671
Direct
|
-0.09%
|
Disposed |
589.0%
(price as of 2026-08-21)
|
| Feb. 17, 2009 |
ARCB
|
F |
30 |
$21.57 |
$647 |
30,698
Direct
|
-0.10%
|
Disposed |
548.8%
(price as of 2026-08-21)
|
| Jan. 20, 2009 |
ARCB
|
F |
27 |
$22.64 |
$611 |
30,728
Direct
|
-0.09%
|
Disposed |
518.1%
(price as of 2026-08-21)
|
| Jan. 17, 2009 |
ARCB
|
F |
30 |
$24.03 |
$721 |
30,755
Direct
|
-0.10%
|
Disposed |
482.4%
(price as of 2026-08-21)
|
| Dec. 20, 2008 |
ARCB
|
F |
22 |
$26.64 |
$586 |
30,785
Direct
|
-0.07%
|
Disposed |
425.3%
(price as of 2026-08-21)
|
| Dec. 17, 2008 |
ARCB
|
F |
26 |
$26.97 |
$701 |
30,807
Direct
|
-0.08%
|
Disposed |
418.9%
(price as of 2026-08-21)
|
| Nov. 20, 2008 |
ARCB
|
F |
22 |
$20.60 |
$453 |
30,833
Direct
|
-0.07%
|
Disposed |
579.3%
(price as of 2026-08-21)
|
| Nov. 17, 2008 |
ARCB
|
F |
26 |
$23.83 |
$620 |
30,855
Direct
|
-0.08%
|
Disposed |
487.3%
(price as of 2026-08-21)
|
| Oct. 20, 2008 |
ARCB
|
F |
22 |
$30.24 |
$665 |
30,881
Direct
|
-0.07%
|
Disposed |
362.8%
(price as of 2026-08-21)
|
| Oct. 17, 2008 |
ARCB
|
F |
26 |
$29.38 |
$764 |
30,903
Direct
|
-0.08%
|
Disposed |
376.3%
(price as of 2026-08-21)
|
| Sept. 20, 2008 |
ARCB
|
F |
22 |
$40.02 |
$880 |
30,929
Direct
|
-0.07%
|
Disposed |
249.7%
(price as of 2026-08-21)
|
| Sept. 17, 2008 |
ARCB
|
F |
26 |
$36.47 |
$948 |
30,951
Direct
|
-0.08%
|
Disposed |
283.7%
(price as of 2026-08-21)
|
| Aug. 20, 2008 |
ARCB
|
F |
22 |
$34.87 |
$767 |
30,977
Direct
|
-0.07%
|
Disposed |
301.3%
(price as of 2026-08-21)
|
| Aug. 17, 2008 |
ARCB
|
F |
26 |
$38.56 |
$1,003 |
30,999
Direct
|
-0.08%
|
Disposed |
262.9%
(price as of 2026-08-21)
|
| July 20, 2008 |
ARCB
|
F |
22 |
$42.63 |
$938 |
31,025
Direct
|
-0.07%
|
Disposed |
228.3%
(price as of 2026-08-21)
|
| July 17, 2008 |
ARCB
|
F |
26 |
$42.15 |
$1,096 |
31,047
Direct
|
-0.08%
|
Disposed |
232.0%
(price as of 2026-08-21)
|
| June 20, 2008 |
ARCB
|
F |
22 |
$39.11 |
$860 |
31,073
Direct
|
-0.07%
|
Disposed |
257.8%
(price as of 2026-08-21)
|
| June 17, 2008 |
ARCB
|
F |
26 |
$36.71 |
$954 |
31,095
Direct
|
-0.08%
|
Disposed |
281.2%
(price as of 2026-08-21)
|
| May 20, 2008 |
ARCB
|
F |
22 |
$39.24 |
$863 |
31,121
Direct
|
-0.07%
|
Disposed |
256.6%
(price as of 2026-08-21)
|
| May 17, 2008 |
ARCB
|
F |
26 |
$39.80 |
$1,035 |
31,143
Direct
|
-0.08%
|
Disposed |
251.6%
(price as of 2026-08-21)
|
| April 30, 2008 |
ARCB
|
A |
4,600 |
— |
— |
31,169
Direct
|
+17.31%
|
Acquired |
(price as of 2026-08-21)
|
| April 28, 2008 |
ARCB
|
M |
4,800 |
— |
— |
0
Direct
|
-100.00%
|
Disposed |
(price as of 2026-08-21)
|
| April 28, 2008 |
ARCB
|
M |
1,200 |
— |
— |
0
Direct
|
-100.00%
|
Disposed |
(price as of 2026-08-21)
|
| April 28, 2008 |
ARCB
|
S |
2,000 |
$40.14 |
$80,280 |
26,569
Direct
|
-7.00%
|
Disposed |
248.6%
(price as of 2026-08-21)
|
| April 28, 2008 |
ARCB
|
S |
300 |
$40.13 |
$12,039 |
28,569
Direct
|
-1.04%
|
Disposed |
248.7%
(price as of 2026-08-21)
|
| April 28, 2008 |
ARCB
|
S |
2,859 |
$40.12 |
$114,703 |
28,869
Direct
|
-9.01%
|
Disposed |
248.8%
(price as of 2026-08-21)
|
| April 28, 2008 |
ARCB
|
M |
4,800 |
$13.62 |
$65,376 |
31,728
Direct
|
+17.83%
|
Acquired |
927.5%
(price as of 2026-08-21)
|
| April 28, 2008 |
ARCB
|
M |
1,200 |
$7.62 |
$9,144 |
26,928
Direct
|
+4.66%
|
Acquired |
1736.5%
(price as of 2026-08-21)
|
| April 20, 2008 |
ARCB
|
F |
22 |
$32.35 |
$712 |
25,728
Direct
|
-0.09%
|
Disposed |
332.6%
(price as of 2026-08-21)
|
| April 17, 2008 |
ARCB
|
F |
26 |
$31.26 |
$813 |
25,750
Direct
|
-0.10%
|
Disposed |
347.7%
(price as of 2026-08-21)
|
| March 20, 2008 |
ARCB
|
F |
22 |
$33.46 |
$736 |
25,776
Direct
|
-0.09%
|
Disposed |
318.2%
(price as of 2026-08-21)
|
| March 17, 2008 |
ARCB
|
F |
25 |
$30.47 |
$762 |
25,798
Direct
|
-0.10%
|
Disposed |
359.3%
(price as of 2026-08-21)
|
| Feb. 20, 2008 |
ARCB
|
F |
22 |
$28.54 |
$628 |
25,823
Direct
|
-0.09%
|
Disposed |
390.3%
(price as of 2026-08-21)
|
| Feb. 17, 2008 |
ARCB
|
F |
26 |
$28.72 |
$747 |
25,845
Direct
|
-0.10%
|
Disposed |
387.3%
(price as of 2026-08-21)
|
| Jan. 20, 2008 |
ARCB
|
F |
27 |
$20.00 |
$540 |
25,871
Direct
|
-0.10%
|
Disposed |
599.7%
(price as of 2026-08-21)
|
| Jan. 17, 2008 |
ARCB
|
F |
30 |
$19.92 |
$598 |
25,898
Direct
|
-0.12%
|
Disposed |
602.5%
(price as of 2026-08-21)
|
| Dec. 20, 2007 |
ARCB
|
F |
22 |
$21.98 |
$484 |
25,928
Direct
|
-0.08%
|
Disposed |
536.7%
(price as of 2026-08-21)
|
| Dec. 17, 2007 |
ARCB
|
F |
26 |
$22.31 |
$580 |
25,950
Direct
|
-0.10%
|
Disposed |
527.3%
(price as of 2026-08-21)
|
| Nov. 20, 2007 |
ARCB
|
F |
22 |
$22.19 |
$488 |
25,976
Direct
|
-0.08%
|
Disposed |
530.7%
(price as of 2026-08-21)
|
| Nov. 17, 2007 |
ARCB
|
F |
26 |
$23.51 |
$611 |
25,998
Direct
|
-0.10%
|
Disposed |
495.3%
(price as of 2026-08-21)
|
| Oct. 20, 2007 |
ARCB
|
F |
22 |
$30.25 |
$666 |
26,024
Direct
|
-0.08%
|
Disposed |
362.6%
(price as of 2026-08-21)
|
| Oct. 17, 2007 |
ARCB
|
F |
26 |
$32.00 |
$832 |
26,046
Direct
|
-0.10%
|
Disposed |
337.3%
(price as of 2026-08-21)
|
| Sept. 20, 2007 |
ARCB
|
F |
22 |
$33.68 |
$741 |
26,072
Direct
|
-0.08%
|
Disposed |
315.5%
(price as of 2026-08-21)
|
| Sept. 17, 2007 |
ARCB
|
F |
26 |
$33.33 |
$867 |
26,094
Direct
|
-0.10%
|
Disposed |
319.9%
(price as of 2026-08-21)
|
| Aug. 20, 2007 |
ARCB
|
F |
22 |
$36.15 |
$795 |
26,120
Direct
|
-0.08%
|
Disposed |
287.1%
(price as of 2026-08-21)
|
| Aug. 17, 2007 |
ARCB
|
F |
26 |
$35.30 |
$918 |
26,142
Direct
|
-0.10%
|
Disposed |
296.4%
(price as of 2026-08-21)
|