Jan 02
2013
BUY
Exercise of conversion of derivative security
-
15,000
Added 19.8%
60,745
Class A Common Stock
Nov 30
2012
SELL
Payment of exercise price or tax liability
$683,426
$149.71 p/Share
4,565
Reduced 9.07%
45,745
Class A Common Stock
Nov 30
2012
BUY
Exercise of conversion of derivative security
-
9,776
Added 16.27%
50,310
Class A Common Stock
Nov 29
2012
SELL
Open market or private sale
$2,220,300
$148.02 p/Share
15,000
Reduced 27.01%
40,534
Class A Common Stock
Nov 29
2012
BUY
Exercise of conversion of derivative security
-
15,000
Added 21.27%
55,534
Class A Common Stock
Nov 19
2012
BUY
Grant, award, or other acquisition
-
29,695
Added 42.28%
40,534
Class A Common Stock
Nov 05
2012
SELL
Payment of exercise price or tax liability
$201,638
$141.5 p/Share
1,425
Reduced 11.62%
10,839
Class A Common Stock
Oct 15
2012
SELL
Open market or private sale
$2,622,412
$139.49 p/Share
18,800
Reduced 60.52%
12,264
Class A Common Stock
Oct 15
2012
BUY
Exercise of conversion of derivative security
-
18,800
Added 37.7%
31,064
Class A Common Stock
Nov 30
2011
SELL
Payment of exercise price or tax liability
$153,891
$96.97 p/Share
1,587
Reduced 11.46%
12,264
Class A Common Stock
Nov 30
2011
BUY
Exercise of conversion of derivative security
-
3,398
Added 19.7%
13,851
Class A Common Stock
Nov 05
2011
SELL
Payment of exercise price or tax liability
$385,753
$92.64 p/Share
4,164
Reduced 33.88%
8,125
Class A Common Stock
Nov 05
2011
BUY
Exercise of conversion of derivative security
-
4,982
Added 28.85%
12,289
Class A Common Stock
Nov 05
2011
BUY
Grant, award, or other acquisition
-
2,328
Added 18.21%
10,453
Class A Common Stock
Oct 12
2011
SELL
Open market or private sale
$5,881,019
$91.18 p/Share
64,499
Reduced 89.82%
7,307
Class A Common Stock
Oct 12
2011
BUY
Exercise of conversion of derivative security
$2,024,000
$44.0 p/Share
46,000
Added 39.05%
71,806
Class A Common Stock
Nov 05
2010
SELL
Payment of exercise price or tax liability
$228,946
$79.8 p/Share
2,869
Reduced 11.3%
22,517
Class A Common Stock
Nov 05
2010
BUY
Exercise of conversion of derivative security
-
4,980
Added 16.4%
25,386
Class A Common Stock
Nov 05
2010
BUY
Grant, award, or other acquisition
-
3,289
Added 11.3%
25,806
Class A Common Stock