| Feb. 1, 2011 |
BKH
|
F |
176 |
$31.78 |
$5,593 |
15,832
Direct
|
-1.10%
|
Disposed |
129.3%
(price as of 2026-08-19)
|
| Jan. 4, 2011 |
BKH
|
F |
65 |
$30.69 |
$1,995 |
16,008
Direct
|
-0.40%
|
Disposed |
137.4%
(price as of 2026-08-19)
|
| Jan. 2, 2011 |
BKH
|
F |
140 |
$30.00 |
$4,200 |
16,073
Direct
|
-0.86%
|
Disposed |
142.9%
(price as of 2026-08-19)
|
| Aug. 13, 2010 |
BKH
|
F |
188 |
$31.20 |
$5,866 |
16,213
Direct
|
-1.15%
|
Disposed |
133.5%
(price as of 2026-08-19)
|
| Feb. 1, 2010 |
BKH
|
A |
1,723 |
— |
— |
16,401
Direct
|
+11.74%
|
Acquired |
(price as of 2026-08-19)
|
| Jan. 5, 2010 |
BKH
|
F |
93 |
$26.14 |
$2,431 |
14,678
Direct
|
-0.63%
|
Disposed |
178.7%
(price as of 2026-08-19)
|
| Jan. 4, 2010 |
BKH
|
F |
69 |
$26.89 |
$1,855 |
14,771
Direct
|
-0.46%
|
Disposed |
171.0%
(price as of 2026-08-19)
|
| Jan. 2, 2010 |
BKH
|
F |
150 |
$26.63 |
$3,994 |
14,840
Direct
|
-1.00%
|
Disposed |
173.6%
(price as of 2026-08-19)
|
| Dec. 7, 2009 |
BKH
|
M |
7,667 |
$21.88 |
$167,754 |
0
Direct
|
-100.00%
|
Disposed |
233.0%
(price as of 2026-08-19)
|
| Dec. 7, 2009 |
BKH
|
M |
1,333 |
$21.88 |
$29,166 |
0
Direct
|
-100.00%
|
Disposed |
233.0%
(price as of 2026-08-19)
|
| Dec. 7, 2009 |
BKH
|
S |
9,000 |
$25.00 |
$225,000 |
14,989
Direct
|
-37.52%
|
Disposed |
191.4%
(price as of 2026-08-19)
|
| Dec. 7, 2009 |
BKH
|
M |
7,667 |
$21.88 |
$167,754 |
23,989
Direct
|
+46.97%
|
Acquired |
233.0%
(price as of 2026-08-19)
|
| Dec. 7, 2009 |
BKH
|
M |
1,333 |
$21.88 |
$29,166 |
16,322
Direct
|
+8.89%
|
Acquired |
233.0%
(price as of 2026-08-19)
|
| Aug. 13, 2009 |
BKH
|
F |
188 |
$26.49 |
$4,980 |
14,989
Direct
|
-1.24%
|
Disposed |
175.0%
(price as of 2026-08-19)
|
| Jan. 6, 2009 |
BKH
|
F |
81 |
$27.28 |
$2,210 |
15,177
Direct
|
-0.53%
|
Disposed |
167.1%
(price as of 2026-08-19)
|
| Jan. 5, 2009 |
BKH
|
F |
93 |
$27.36 |
$2,544 |
15,259
Direct
|
-0.61%
|
Disposed |
166.3%
(price as of 2026-08-19)
|
| Jan. 2, 2009 |
BKH
|
A |
1,374 |
— |
— |
15,352
Direct
|
+9.83%
|
Acquired |
(price as of 2026-08-19)
|
| Jan. 2, 2009 |
BKH
|
F |
69 |
$27.29 |
$1,883 |
13,978
Direct
|
-0.49%
|
Disposed |
167.0%
(price as of 2026-08-19)
|
| Aug. 13, 2008 |
BKH
|
A |
2,132 |
— |
— |
14,047
Direct
|
+17.89%
|
Acquired |
(price as of 2026-08-19)
|
| April 17, 2008 |
BKH
|
M |
2,219 |
$21.88 |
$48,552 |
1,333
Direct
|
-62.47%
|
Disposed |
233.0%
(price as of 2026-08-19)
|
| April 17, 2008 |
BKH
|
S 10b5-1 |
2,219 |
$39.00 |
$86,541 |
11,915
Direct
|
-15.70%
|
Disposed |
86.8%
(price as of 2026-08-19)
|
| April 17, 2008 |
BKH
|
M |
2,219 |
$21.88 |
$48,552 |
14,134
Direct
|
+18.62%
|
Acquired |
233.0%
(price as of 2026-08-19)
|
| April 16, 2008 |
BKH
|
M |
1,781 |
$21.88 |
$38,968 |
3,552
Direct
|
-33.40%
|
Disposed |
233.0%
(price as of 2026-08-19)
|
| April 16, 2008 |
BKH
|
S 10b5-1 |
1,781 |
$39.00 |
$69,459 |
11,915
Direct
|
-13.00%
|
Disposed |
86.8%
(price as of 2026-08-19)
|
| April 16, 2008 |
BKH
|
M |
1,781 |
$21.88 |
$38,968 |
13,696
Direct
|
+14.95%
|
Acquired |
233.0%
(price as of 2026-08-19)
|
| April 15, 2008 |
BKH
|
M |
2,667 |
$24.06 |
$64,168 |
0
Direct
|
-100.00%
|
Disposed |
202.8%
(price as of 2026-08-19)
|
| April 15, 2008 |
BKH
|
M |
2,667 |
$24.06 |
$64,168 |
0
Direct
|
-100.00%
|
Disposed |
202.8%
(price as of 2026-08-19)
|
| April 15, 2008 |
BKH
|
M |
2,466 |
$24.06 |
$59,332 |
0
Direct
|
-100.00%
|
Disposed |
202.8%
(price as of 2026-08-19)
|
| April 15, 2008 |
BKH
|
S 10b5-1 |
7,800 |
$38.00 |
$296,400 |
11,915
Direct
|
-39.56%
|
Disposed |
91.7%
(price as of 2026-08-19)
|
| April 15, 2008 |
BKH
|
M |
2,667 |
$24.06 |
$64,168 |
19,715
Direct
|
+15.64%
|
Acquired |
202.8%
(price as of 2026-08-19)
|
| April 15, 2008 |
BKH
|
M |
2,667 |
$24.06 |
$64,168 |
17,048
Direct
|
+18.55%
|
Acquired |
202.8%
(price as of 2026-08-19)
|
| April 15, 2008 |
BKH
|
M |
2,466 |
$24.06 |
$59,332 |
14,381
Direct
|
+20.70%
|
Acquired |
202.8%
(price as of 2026-08-19)
|
| April 14, 2008 |
BKH
|
M |
200 |
$24.06 |
$4,812 |
2,466
Direct
|
-7.50%
|
Disposed |
202.8%
(price as of 2026-08-19)
|
| April 14, 2008 |
BKH
|
S 10b5-1 |
200 |
$38.00 |
$7,600 |
11,915
Direct
|
-1.65%
|
Disposed |
91.7%
(price as of 2026-08-19)
|
| April 14, 2008 |
BKH
|
M |
200 |
$24.06 |
$4,812 |
12,115
Direct
|
+1.68%
|
Acquired |
202.8%
(price as of 2026-08-19)
|
| Feb. 12, 2008 |
BKH
|
A |
844 |
$43.48 |
$36,697 |
11,915
Direct
|
+7.62%
|
Acquired |
67.6%
(price as of 2026-08-19)
|
| Jan. 4, 2008 |
BKH
|
F |
81 |
$41.84 |
$3,389 |
11,071
Direct
|
-0.73%
|
Disposed |
74.1%
(price as of 2026-08-19)
|
| Jan. 4, 2008 |
BKH
|
F |
96 |
$41.84 |
$4,017 |
11,152
Direct
|
-0.85%
|
Disposed |
74.1%
(price as of 2026-08-19)
|
| Jan. 4, 2008 |
BKH
|
F |
93 |
$41.84 |
$3,891 |
11,248
Direct
|
-0.82%
|
Disposed |
74.1%
(price as of 2026-08-19)
|
| Jan. 4, 2008 |
BKH
|
A |
633 |
— |
— |
11,341
Direct
|
+5.91%
|
Acquired |
(price as of 2026-08-19)
|
| May 10, 2007 |
BKH
|
F |
81 |
$41.43 |
$3,356 |
10,708
Direct
|
-0.75%
|
Disposed |
75.9%
(price as of 2026-08-19)
|
| May 9, 2007 |
BKH
|
S |
3,227 |
$42.05 |
$135,695 |
0
Indirect
|
-100.00%
|
Disposed |
73.3%
(price as of 2026-08-19)
|
| March 31, 2007 |
BKH
|
J |
30 |
— |
— |
3,227
Indirect
|
+0.94%
|
Acquired |
(price as of 2026-08-19)
|
| Feb. 15, 2007 |
BKH
|
A |
120 |
$36.75 |
$4,410 |
10,789
Direct
|
+1.12%
|
Acquired |
98.3%
(price as of 2026-08-19)
|
| Jan. 5, 2007 |
BKH
|
F |
81 |
$37.11 |
$3,006 |
10,669
Direct
|
-0.75%
|
Disposed |
96.3%
(price as of 2026-08-19)
|
| Jan. 5, 2007 |
BKH
|
F |
96 |
$37.11 |
$3,563 |
10,750
Direct
|
-0.89%
|
Disposed |
96.3%
(price as of 2026-08-19)
|
| Jan. 5, 2007 |
BKH
|
A |
854 |
— |
— |
10,846
Direct
|
+8.55%
|
Acquired |
(price as of 2026-08-19)
|
| Dec. 31, 2006 |
BKH
|
J |
118 |
— |
— |
3,197
Indirect
|
+3.83%
|
Acquired |
(price as of 2026-08-19)
|
| May 15, 2006 |
BKH
|
F |
125 |
$35.30 |
$4,412 |
9,992
Direct
|
-1.24%
|
Disposed |
106.4%
(price as of 2026-08-19)
|
| May 10, 2006 |
BKH
|
F |
80 |
$36.30 |
$2,904 |
10,117
Direct
|
-0.78%
|
Disposed |
100.7%
(price as of 2026-08-19)
|
| Feb. 1, 2006 |
BKH
|
A |
271 |
$35.83 |
$9,710 |
10,197
Direct
|
+2.73%
|
Acquired |
103.3%
(price as of 2026-08-19)
|
| Jan. 6, 2006 |
BKH
|
F |
96 |
$35.49 |
$3,407 |
9,926
Direct
|
-0.96%
|
Disposed |
105.3%
(price as of 2026-08-19)
|
| Jan. 6, 2006 |
BKH
|
A |
747 |
— |
— |
10,022
Direct
|
+8.05%
|
Acquired |
(price as of 2026-08-19)
|
| Dec. 31, 2005 |
BKH
|
J |
105 |
— |
— |
3,079
Indirect
|
+3.53%
|
Acquired |
(price as of 2026-08-19)
|
| July 14, 2005 |
BKH
|
M |
2,334 |
$21.88 |
$51,068 |
5,333
Direct
|
-30.44%
|
Disposed |
233.0%
(price as of 2026-08-19)
|
| July 14, 2005 |
BKH
|
M |
7,666 |
$21.88 |
$167,732 |
0
Direct
|
-100.00%
|
Disposed |
233.0%
(price as of 2026-08-19)
|
| July 14, 2005 |
BKH
|
S |
10,000 |
$40.00 |
$400,000 |
9,275
Direct
|
-51.88%
|
Disposed |
82.2%
(price as of 2026-08-19)
|
| July 14, 2005 |
BKH
|
M |
2,334 |
$21.88 |
$51,068 |
19,275
Direct
|
+13.78%
|
Acquired |
233.0%
(price as of 2026-08-19)
|
| July 14, 2005 |
BKH
|
M |
7,666 |
$21.88 |
$167,732 |
16,941
Direct
|
+82.65%
|
Acquired |
233.0%
(price as of 2026-08-19)
|
| May 15, 2005 |
BKH
|
F |
125 |
$34.87 |
$4,359 |
9,275
Direct
|
-1.33%
|
Disposed |
108.9%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$22.00 |
$55,000 |
0
Direct
|
-100.00%
|
Disposed |
231.2%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$22.00 |
$55,000 |
0
Direct
|
-100.00%
|
Disposed |
231.2%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$22.00 |
$55,000 |
0
Direct
|
-100.00%
|
Disposed |
231.2%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$19.38 |
$48,450 |
0
Direct
|
-100.00%
|
Disposed |
276.0%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$19.38 |
$48,450 |
0
Direct
|
-100.00%
|
Disposed |
276.0%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$19.38 |
$48,450 |
0
Direct
|
-100.00%
|
Disposed |
276.0%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$19.38 |
$48,450 |
9,400
Direct
|
+36.23%
|
Acquired |
276.0%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$19.38 |
$48,450 |
6,900
Direct
|
+56.82%
|
Acquired |
276.0%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$19.38 |
$48,450 |
4,400
Direct
|
+131.58%
|
Acquired |
276.0%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
S |
300 |
$35.69 |
$10,707 |
1,900
Direct
|
-13.64%
|
Disposed |
104.1%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
S |
9,000 |
$35.74 |
$321,660 |
2,200
Direct
|
-80.36%
|
Disposed |
103.9%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
S |
5,700 |
$35.81 |
$204,117 |
11,200
Direct
|
-33.73%
|
Disposed |
103.5%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$22.00 |
$55,000 |
16,900
Direct
|
+17.36%
|
Acquired |
231.2%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$22.00 |
$55,000 |
14,400
Direct
|
+21.01%
|
Acquired |
231.2%
(price as of 2026-08-19)
|
| May 12, 2005 |
BKH
|
M |
2,500 |
$22.00 |
$55,000 |
11,900
Direct
|
+26.60%
|
Acquired |
231.2%
(price as of 2026-08-19)
|
| May 10, 2005 |
BKH
|
F |
99 |
$36.18 |
$3,582 |
9,400
Direct
|
-1.04%
|
Disposed |
101.4%
(price as of 2026-08-19)
|
| April 22, 2005 |
BKH
|
F |
109 |
$35.07 |
$3,823 |
9,499
Direct
|
-1.13%
|
Disposed |
107.8%
(price as of 2026-08-19)
|
| Jan. 6, 2005 |
BKH
|
A |
884 |
— |
— |
9,609
Direct
|
+10.13%
|
Acquired |
(price as of 2026-08-19)
|
| Dec. 31, 2004 |
BKH
|
J |
120 |
— |
— |
2,974
Indirect
|
+4.20%
|
Acquired |
(price as of 2026-08-19)
|
| May 30, 2004 |
BKH
|
F |
16 |
$29.30 |
$469 |
8,725
Direct
|
-0.18%
|
Disposed |
148.7%
(price as of 2026-08-19)
|
| May 17, 2004 |
BKH
|
F |
129 |
$29.22 |
$3,769 |
8,740
Direct
|
-1.45%
|
Disposed |
149.3%
(price as of 2026-08-19)
|
| May 10, 2004 |
BKH
|
A |
913 |
— |
— |
8,869
Direct
|
+11.48%
|
Acquired |
(price as of 2026-08-19)
|
| April 23, 2004 |
BKH
|
F |
109 |
$30.78 |
$3,355 |
7,956
Direct
|
-1.35%
|
Disposed |
136.7%
(price as of 2026-08-19)
|
| March 2, 2004 |
BKH
|
A |
170 |
$31.10 |
$5,287 |
8,065
Direct
|
+2.15%
|
Acquired |
134.3%
(price as of 2026-08-19)
|