| Feb. 10, 2015 |
BKH
|
F |
231 |
$50.65 |
$11,700 |
62,374
Direct
|
-0.37%
|
Disposed |
44.2%
(price as of 2026-08-21)
|
| Feb. 6, 2015 |
BKH
|
F |
350 |
$50.21 |
$17,574 |
62,605
Direct
|
-0.56%
|
Disposed |
45.4%
(price as of 2026-08-21)
|
| Feb. 4, 2015 |
BKH
|
A |
2,774 |
— |
— |
62,955
Direct
|
+4.61%
|
Acquired |
(price as of 2026-08-21)
|
| Feb. 4, 2015 |
BKH
|
F |
305 |
$50.46 |
$15,390 |
60,181
Direct
|
-0.50%
|
Disposed |
44.7%
(price as of 2026-08-21)
|
| Feb. 3, 2015 |
BKH
|
A |
4,444 |
$53.01 |
$235,576 |
60,486
Direct
|
+7.93%
|
Acquired |
37.7%
(price as of 2026-08-21)
|
| Feb. 10, 2014 |
BKH
|
A |
2,533 |
— |
— |
56,042
Direct
|
+4.73%
|
Acquired |
(price as of 2026-08-21)
|
| Feb. 7, 2014 |
BKH
|
F |
406 |
$53.86 |
$21,867 |
53,509
Direct
|
-0.75%
|
Disposed |
35.6%
(price as of 2026-08-21)
|
| Feb. 6, 2014 |
BKH
|
F |
350 |
$53.11 |
$18,588 |
53,915
Direct
|
-0.64%
|
Disposed |
37.5%
(price as of 2026-08-21)
|
| Feb. 4, 2014 |
BKH
|
A |
4,224 |
$51.39 |
$217,071 |
54,570
Direct
|
+8.39%
|
Acquired |
42.1%
(price as of 2026-08-21)
|
| Feb. 4, 2014 |
BKH
|
F |
305 |
$52.69 |
$16,070 |
54,265
Direct
|
-0.56%
|
Disposed |
38.6%
(price as of 2026-08-21)
|
| Feb. 8, 2013 |
BKH
|
A |
4,735 |
$36.02 |
$170,555 |
50,346
Direct
|
+10.38%
|
Acquired |
102.7%
(price as of 2026-08-21)
|
| Feb. 7, 2013 |
BKH
|
F |
406 |
$40.89 |
$16,601 |
45,611
Direct
|
-0.88%
|
Disposed |
78.6%
(price as of 2026-08-21)
|
| Feb. 6, 2013 |
BKH
|
F |
350 |
$40.92 |
$14,322 |
46,018
Direct
|
-0.75%
|
Disposed |
78.4%
(price as of 2026-08-21)
|
| Feb. 4, 2013 |
BKH
|
A |
3,342 |
— |
— |
46,368
Direct
|
+7.77%
|
Acquired |
(price as of 2026-08-21)
|
| Feb. 1, 2013 |
BKH
|
F |
454 |
$40.88 |
$18,560 |
43,026
Direct
|
-1.04%
|
Disposed |
78.6%
(price as of 2026-08-21)
|
| Dec. 31, 2012 |
BKH
|
J |
72 |
— |
— |
43,480
Direct
|
+0.17%
|
Acquired |
(price as of 2026-08-21)
|
| Feb. 7, 2012 |
BKH
|
F |
393 |
$35.29 |
$13,869 |
43,408
Direct
|
-0.90%
|
Disposed |
106.9%
(price as of 2026-08-21)
|
| Feb. 6, 2012 |
BKH
|
A |
3,842 |
— |
— |
43,800
Direct
|
+9.62%
|
Acquired |
(price as of 2026-08-21)
|
| Feb. 1, 2012 |
BKH
|
F |
467 |
$34.20 |
$15,971 |
39,958
Direct
|
-1.16%
|
Disposed |
113.5%
(price as of 2026-08-21)
|
| Jan. 2, 2012 |
BKH
|
F |
487 |
$33.58 |
$16,353 |
40,426
Direct
|
-1.19%
|
Disposed |
117.4%
(price as of 2026-08-21)
|
| Dec. 31, 2011 |
BKH
|
J |
136 |
— |
— |
40,912
Direct
|
+0.33%
|
Acquired |
(price as of 2026-08-21)
|
| Aug. 12, 2011 |
BKH
|
F |
268 |
$29.10 |
$7,799 |
40,776
Direct
|
-0.65%
|
Disposed |
150.9%
(price as of 2026-08-21)
|
| March 7, 2011 |
BKH
|
S |
123 |
$32.11 |
$3,950 |
0
Indirect
|
-100.00%
|
Disposed |
127.4%
(price as of 2026-08-21)
|
| March 7, 2011 |
BKH
|
S |
150 |
$32.11 |
$4,816 |
41,045
Direct
|
-0.36%
|
Disposed |
127.4%
(price as of 2026-08-21)
|
| Feb. 7, 2011 |
BKH
|
A |
4,457 |
— |
— |
41,195
Direct
|
+12.13%
|
Acquired |
(price as of 2026-08-21)
|
| Feb. 1, 2011 |
BKH
|
F |
449 |
$31.78 |
$14,269 |
36,738
Direct
|
-1.21%
|
Disposed |
129.8%
(price as of 2026-08-21)
|
| Jan. 4, 2011 |
BKH
|
F |
196 |
$30.69 |
$6,015 |
37,050
Direct
|
-0.53%
|
Disposed |
137.9%
(price as of 2026-08-21)
|
| Jan. 2, 2011 |
BKH
|
F |
487 |
$30.00 |
$14,610 |
37,247
Direct
|
-1.29%
|
Disposed |
143.4%
(price as of 2026-08-21)
|
| Dec. 31, 2010 |
BKH
|
J |
8 |
— |
— |
123
Indirect
|
+6.96%
|
Acquired |
(price as of 2026-08-21)
|
| Dec. 31, 2010 |
BKH
|
J |
136 |
— |
— |
37,186
Direct
|
+0.37%
|
Acquired |
(price as of 2026-08-21)
|
| Aug. 13, 2010 |
BKH
|
F |
268 |
$31.20 |
$8,362 |
37,733
Direct
|
-0.71%
|
Disposed |
134.0%
(price as of 2026-08-21)
|
| Feb. 1, 2010 |
BKH
|
A |
4,979 |
— |
— |
38,002
Direct
|
+15.08%
|
Acquired |
(price as of 2026-08-21)
|
| Jan. 5, 2010 |
BKH
|
F |
251 |
$26.14 |
$6,561 |
32,851
Direct
|
-0.76%
|
Disposed |
179.3%
(price as of 2026-08-21)
|
| Jan. 4, 2010 |
BKH
|
F |
209 |
$26.89 |
$5,620 |
33,102
Direct
|
-0.63%
|
Disposed |
171.5%
(price as of 2026-08-21)
|
| Jan. 2, 2010 |
BKH
|
F |
518 |
$26.63 |
$13,794 |
33,311
Direct
|
-1.53%
|
Disposed |
174.2%
(price as of 2026-08-21)
|
| Dec. 31, 2009 |
BKH
|
J |
172 |
— |
— |
33,023
Direct
|
+0.52%
|
Acquired |
(price as of 2026-08-21)
|
| Aug. 13, 2009 |
BKH
|
F |
268 |
$26.49 |
$7,099 |
33,830
Direct
|
-0.79%
|
Disposed |
175.6%
(price as of 2026-08-21)
|
| March 10, 2009 |
BKH
|
J |
75 |
— |
— |
0
Indirect
|
-100.00%
|
Disposed |
(price as of 2026-08-21)
|
| Jan. 6, 2009 |
BKH
|
F |
247 |
$27.28 |
$6,738 |
33,989
Direct
|
-0.72%
|
Disposed |
167.7%
(price as of 2026-08-21)
|
| Jan. 5, 2009 |
BKH
|
F |
251 |
$27.36 |
$6,867 |
34,236
Direct
|
-0.73%
|
Disposed |
166.9%
(price as of 2026-08-21)
|
| Jan. 2, 2009 |
BKH
|
A |
4,764 |
— |
— |
34,487
Direct
|
+16.03%
|
Acquired |
(price as of 2026-08-21)
|
| Jan. 2, 2009 |
BKH
|
F |
209 |
$27.29 |
$5,704 |
29,723
Direct
|
-0.70%
|
Disposed |
167.6%
(price as of 2026-08-21)
|
| Aug. 13, 2008 |
BKH
|
J |
75 |
— |
— |
0
Indirect
|
-100.00%
|
Disposed |
(price as of 2026-08-21)
|
| Aug. 13, 2008 |
BKH
|
A |
3,045 |
— |
— |
29,932
Direct
|
+11.33%
|
Acquired |
(price as of 2026-08-21)
|
| Feb. 15, 2008 |
BKH
|
J |
75 |
— |
— |
75
Indirect
|
—
|
Acquired |
(price as of 2026-08-21)
|
| Feb. 15, 2008 |
BKH
|
J |
75 |
— |
— |
75
Indirect
|
-50.00%
|
Disposed |
(price as of 2026-08-21)
|
| Feb. 12, 2008 |
BKH
|
A |
2,544 |
$43.48 |
$110,613 |
26,887
Direct
|
+10.45%
|
Acquired |
67.9%
(price as of 2026-08-21)
|
| Jan. 4, 2008 |
BKH
|
F |
234 |
$41.84 |
$9,791 |
24,343
Direct
|
-0.95%
|
Disposed |
74.5%
(price as of 2026-08-21)
|
| Jan. 4, 2008 |
BKH
|
F |
290 |
$41.84 |
$12,134 |
24,577
Direct
|
-1.17%
|
Disposed |
74.5%
(price as of 2026-08-21)
|
| Jan. 4, 2008 |
BKH
|
F |
251 |
$41.84 |
$10,502 |
24,867
Direct
|
-1.00%
|
Disposed |
74.5%
(price as of 2026-08-21)
|
| Jan. 4, 2008 |
BKH
|
A |
1,923 |
— |
— |
25,118
Direct
|
+8.29%
|
Acquired |
(price as of 2026-08-21)
|
| Dec. 31, 2007 |
BKH
|
J |
82 |
— |
— |
23,195
Direct
|
+0.35%
|
Acquired |
(price as of 2026-08-21)
|
| May 10, 2007 |
BKH
|
F |
205 |
$41.43 |
$8,493 |
23,113
Direct
|
-0.88%
|
Disposed |
76.2%
(price as of 2026-08-21)
|
| May 9, 2007 |
BKH
|
M |
3,334 |
$33.19 |
$110,655 |
0
Direct
|
-100.00%
|
Disposed |
120.0%
(price as of 2026-08-21)
|
| May 9, 2007 |
BKH
|
M |
3,333 |
$33.19 |
$110,622 |
0
Direct
|
-100.00%
|
Disposed |
120.0%
(price as of 2026-08-21)
|
| May 9, 2007 |
BKH
|
M |
688 |
$33.19 |
$22,835 |
0
Direct
|
-100.00%
|
Disposed |
120.0%
(price as of 2026-08-21)
|
| May 9, 2007 |
BKH
|
S |
6,250 |
$41.82 |
$261,375 |
23,319
Direct
|
-21.14%
|
Disposed |
74.6%
(price as of 2026-08-21)
|
| May 9, 2007 |
BKH
|
M |
3,334 |
$33.19 |
$110,655 |
29,569
Direct
|
+12.71%
|
Acquired |
120.0%
(price as of 2026-08-21)
|
| May 9, 2007 |
BKH
|
M |
3,333 |
$33.19 |
$110,622 |
26,235
Direct
|
+14.55%
|
Acquired |
120.0%
(price as of 2026-08-21)
|
| May 9, 2007 |
BKH
|
M |
688 |
$33.19 |
$22,835 |
22,902
Direct
|
+3.10%
|
Acquired |
120.0%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
M |
4,136 |
$28.09 |
$116,180 |
0
Direct
|
-100.00%
|
Disposed |
159.9%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
M |
4,136 |
$28.09 |
$116,180 |
0
Direct
|
-100.00%
|
Disposed |
159.9%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
M |
4,136 |
$28.09 |
$116,180 |
0
Direct
|
-100.00%
|
Disposed |
159.9%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
M |
2,645 |
$33.19 |
$87,788 |
688
Direct
|
-79.36%
|
Disposed |
120.0%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
M |
2,645 |
$33.19 |
$87,788 |
22,214
Direct
|
+13.52%
|
Acquired |
120.0%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
F |
147 |
$42.05 |
$6,181 |
19,569
Direct
|
-0.75%
|
Disposed |
73.6%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
F |
1,090 |
$42.05 |
$45,834 |
19,716
Direct
|
-5.24%
|
Disposed |
73.6%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
F |
2,088 |
$42.05 |
$87,800 |
20,806
Direct
|
-9.12%
|
Disposed |
73.6%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
F |
8,289 |
$42.05 |
$348,552 |
22,893
Direct
|
-26.58%
|
Disposed |
73.6%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
M |
4,136 |
$28.09 |
$116,180 |
31,182
Direct
|
+15.29%
|
Acquired |
159.9%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
M |
4,136 |
$28.09 |
$116,180 |
27,046
Direct
|
+18.05%
|
Acquired |
159.9%
(price as of 2026-08-21)
|
| May 8, 2007 |
BKH
|
M |
4,136 |
$28.09 |
$116,180 |
22,910
Direct
|
+22.03%
|
Acquired |
159.9%
(price as of 2026-08-21)
|
| Feb. 27, 2007 |
BKH
|
A |
1,329 |
$37.50 |
$49,838 |
18,774
Direct
|
+7.62%
|
Acquired |
94.7%
(price as of 2026-08-21)
|
| Feb. 15, 2007 |
BKH
|
A |
306 |
$36.75 |
$11,246 |
17,445
Direct
|
+1.79%
|
Acquired |
98.7%
(price as of 2026-08-21)
|
| Jan. 5, 2007 |
BKH
|
F |
247 |
$37.11 |
$9,166 |
17,139
Direct
|
-1.42%
|
Disposed |
96.8%
(price as of 2026-08-21)
|
| Jan. 5, 2007 |
BKH
|
F |
290 |
$37.11 |
$10,762 |
17,386
Direct
|
-1.64%
|
Disposed |
96.8%
(price as of 2026-08-21)
|
| Jan. 5, 2007 |
BKH
|
A |
2,308 |
— |
— |
17,675
Direct
|
+15.02%
|
Acquired |
(price as of 2026-08-21)
|
| Dec. 31, 2006 |
BKH
|
J |
88 |
— |
— |
15,367
Direct
|
+0.58%
|
Acquired |
(price as of 2026-08-21)
|
| May 15, 2006 |
BKH
|
F |
318 |
$35.30 |
$11,225 |
15,280
Direct
|
-2.04%
|
Disposed |
106.8%
(price as of 2026-08-21)
|
| May 10, 2006 |
BKH
|
F |
205 |
$36.30 |
$7,442 |
15,598
Direct
|
-1.30%
|
Disposed |
101.1%
(price as of 2026-08-21)
|
| Feb. 28, 2006 |
BKH
|
A |
905 |
$35.41 |
$32,046 |
15,803
Direct
|
+6.07%
|
Acquired |
106.2%
(price as of 2026-08-21)
|
| Feb. 1, 2006 |
BKH
|
A |
691 |
$35.83 |
$24,759 |
14,898
Direct
|
+4.86%
|
Acquired |
103.8%
(price as of 2026-08-21)
|
| Jan. 6, 2006 |
BKH
|
A |
2,267 |
— |
— |
14,497
Direct
|
+18.54%
|
Acquired |
(price as of 2026-08-21)
|
| Jan. 6, 2006 |
BKH
|
F |
290 |
$35.49 |
$10,292 |
14,207
Direct
|
-2.00%
|
Disposed |
105.7%
(price as of 2026-08-21)
|
| Dec. 31, 2005 |
BKH
|
J |
78 |
— |
— |
12,230
Direct
|
+0.64%
|
Acquired |
(price as of 2026-08-21)
|
| May 15, 2005 |
BKH
|
F |
318 |
$34.87 |
$11,089 |
12,152
Direct
|
-2.55%
|
Disposed |
109.4%
(price as of 2026-08-21)
|
| May 10, 2005 |
BKH
|
F |
205 |
$36.18 |
$7,417 |
12,470
Direct
|
-1.62%
|
Disposed |
101.8%
(price as of 2026-08-21)
|
| April 22, 2005 |
BKH
|
F |
177 |
$35.07 |
$6,207 |
12,675
Direct
|
-1.38%
|
Disposed |
108.2%
(price as of 2026-08-21)
|
| Jan. 6, 2005 |
BKH
|
A |
2,664 |
— |
— |
12,852
Direct
|
+26.15%
|
Acquired |
(price as of 2026-08-21)
|
| Dec. 31, 2004 |
BKH
|
J |
95 |
— |
— |
10,188
Direct
|
+0.94%
|
Acquired |
(price as of 2026-08-21)
|
| May 17, 2004 |
BKH
|
F |
318 |
$29.22 |
$9,292 |
10,093
Direct
|
-3.05%
|
Disposed |
149.9%
(price as of 2026-08-21)
|
| May 10, 2004 |
BKH
|
A |
2,327 |
— |
— |
10,411
Direct
|
+28.79%
|
Acquired |
(price as of 2026-08-21)
|
| April 23, 2004 |
BKH
|
F |
151 |
$30.78 |
$4,648 |
8,084
Direct
|
-1.83%
|
Disposed |
137.2%
(price as of 2026-08-21)
|
| March 2, 2004 |
BKH
|
A |
322 |
$31.10 |
$10,014 |
8,234
Direct
|
+4.07%
|
Acquired |
134.8%
(price as of 2026-08-21)
|