| Jan. 27, 2006 |
WST
|
A |
10 |
$30.92 |
$309 |
4,547
Indirect
|
+0.22%
|
Acquired |
2181.6%
(price as of 2026-08-21)
|
| Jan. 13, 2006 |
WST
|
A |
11 |
$28.22 |
$310 |
4,539
Indirect
|
+0.24%
|
Acquired |
2399.9%
(price as of 2026-08-21)
|
| Dec. 30, 2005 |
WST
|
A |
12 |
$25.03 |
$300 |
4,517
Indirect
|
+0.27%
|
Acquired |
2718.5%
(price as of 2026-08-21)
|
| Dec. 16, 2005 |
WST
|
A |
12 |
$24.50 |
$294 |
4,504
Indirect
|
+0.27%
|
Acquired |
2779.4%
(price as of 2026-08-21)
|
| Dec. 2, 2005 |
WST
|
A |
12 |
$25.67 |
$308 |
4,492
Indirect
|
+0.27%
|
Acquired |
2648.2%
(price as of 2026-08-21)
|
| Nov. 18, 2005 |
WST
|
A |
12 |
$25.89 |
$311 |
4,479
Indirect
|
+0.27%
|
Acquired |
2624.8%
(price as of 2026-08-21)
|
| Nov. 4, 2005 |
WST
|
A |
13 |
$23.78 |
$309 |
4,565
Indirect
|
+0.29%
|
Acquired |
2866.6%
(price as of 2026-08-21)
|
| Oct. 21, 2005 |
WST
|
A |
13 |
$23.27 |
$303 |
4,552
Indirect
|
+0.29%
|
Acquired |
2931.6%
(price as of 2026-08-21)
|
| Oct. 7, 2005 |
WST
|
A |
11 |
$28.38 |
$312 |
4,418
Indirect
|
+0.25%
|
Acquired |
2385.8%
(price as of 2026-08-21)
|
| Sept. 23, 2005 |
WST
|
A |
10 |
$29.05 |
$290 |
4,406
Indirect
|
+0.23%
|
Acquired |
2328.4%
(price as of 2026-08-21)
|
| Sept. 9, 2005 |
WST
|
A |
10 |
$29.05 |
$290 |
4,396
Indirect
|
+0.23%
|
Acquired |
2328.4%
(price as of 2026-08-21)
|
| Aug. 26, 2005 |
WST
|
A |
11 |
$26.80 |
$295 |
4,387
Indirect
|
+0.25%
|
Acquired |
2532.3%
(price as of 2026-08-21)
|
| Aug. 12, 2005 |
WST
|
A |
11 |
$26.62 |
$293 |
4,377
Indirect
|
+0.25%
|
Acquired |
2550.1%
(price as of 2026-08-21)
|
| Aug. 1, 2005 |
WST
|
A |
11 |
$27.24 |
$300 |
4,365
Indirect
|
+0.25%
|
Acquired |
2489.8%
(price as of 2026-08-21)
|
| July 15, 2005 |
WST
|
A |
11 |
$27.86 |
$306 |
4,335
Indirect
|
+0.25%
|
Acquired |
2432.2%
(price as of 2026-08-21)
|
| July 1, 2005 |
WST
|
A |
11 |
$28.10 |
$309 |
4,324
Indirect
|
+0.26%
|
Acquired |
2410.5%
(price as of 2026-08-21)
|
| June 17, 2005 |
WST
|
A |
11 |
$28.44 |
$313 |
4,313
Indirect
|
+0.26%
|
Acquired |
2380.5%
(price as of 2026-08-21)
|
| June 3, 2005 |
WST
|
A |
11 |
$27.43 |
$302 |
4,302
Indirect
|
+0.26%
|
Acquired |
2471.9%
(price as of 2026-08-21)
|
| May 20, 2005 |
WST
|
A |
11 |
$28.10 |
$309 |
4,291
Indirect
|
+0.26%
|
Acquired |
2410.5%
(price as of 2026-08-21)
|
| May 6, 2005 |
WST
|
A |
11 |
$27.75 |
$305 |
4,281
Indirect
|
+0.26%
|
Acquired |
2442.2%
(price as of 2026-08-21)
|
| May 3, 2005 |
WST
|
M |
10,000 |
$13.38 |
$133,800 |
10,000
Direct
|
-50.00%
|
Disposed |
5172.5%
(price as of 2026-08-21)
|
| May 3, 2005 |
WST
|
S |
10,000 |
$27.14 |
$271,400 |
23,411
Direct
|
-29.93%
|
Disposed |
2499.3%
(price as of 2026-08-21)
|
| May 3, 2005 |
WST
|
M |
10,000 |
$13.38 |
$133,800 |
33,411
Direct
|
+42.71%
|
Acquired |
5172.5%
(price as of 2026-08-21)
|
| April 22, 2005 |
WST
|
A |
11 |
$26.61 |
$293 |
4,272
Indirect
|
+0.26%
|
Acquired |
2551.1%
(price as of 2026-08-21)
|
| April 8, 2005 |
WST
|
A |
12 |
$23.90 |
$287 |
4,244
Indirect
|
+0.28%
|
Acquired |
2851.7%
(price as of 2026-08-21)
|
| March 24, 2005 |
WST
|
A |
13 |
$23.71 |
$308 |
4,232
Indirect
|
+0.31%
|
Acquired |
2875.4%
(price as of 2026-08-21)
|
| March 14, 2005 |
WST
|
A |
13 |
$24.09 |
$313 |
4,219
Indirect
|
+0.31%
|
Acquired |
2828.4%
(price as of 2026-08-21)
|
| March 7, 2005 |
WST
|
A |
11,000 |
$25.53 |
$280,830 |
11,000
Direct
|
—
|
Acquired |
2663.3%
(price as of 2026-08-21)
|
| March 7, 2005 |
WST
|
A |
1,187 |
$25.57 |
$30,352 |
4,206
Indirect
|
+39.32%
|
Acquired |
2658.9%
(price as of 2026-08-21)
|
| March 7, 2005 |
WST
|
A |
2,885 |
— |
— |
24,911
Direct
|
+13.10%
|
Acquired |
(price as of 2026-08-21)
|
| Feb. 25, 2005 |
WST
|
A |
12 |
$25.85 |
$310 |
3,020
Indirect
|
+0.40%
|
Acquired |
2629.1%
(price as of 2026-08-21)
|
| Feb. 11, 2005 |
WST
|
A |
10 |
$26.32 |
$263 |
3,007
Indirect
|
+0.33%
|
Acquired |
2580.3%
(price as of 2026-08-21)
|
| Jan. 28, 2005 |
WST
|
A |
12 |
$25.81 |
$310 |
2,997
Indirect
|
+0.40%
|
Acquired |
2633.3%
(price as of 2026-08-21)
|
| Jan. 24, 2005 |
WST
|
S |
1,500 |
$25.71 |
$38,565 |
20,478
Direct
|
-6.83%
|
Disposed |
2643.9%
(price as of 2026-08-21)
|
| Jan. 14, 2005 |
WST
|
M |
4,000 |
$13.02 |
$52,080 |
0
Direct
|
-100.00%
|
Disposed |
5318.3%
(price as of 2026-08-21)
|
| Jan. 14, 2005 |
WST
|
M |
4,000 |
$13.02 |
$52,080 |
21,901
Direct
|
+22.35%
|
Acquired |
5318.3%
(price as of 2026-08-21)
|
| Jan. 6, 2005 |
WST
|
M |
5,000 |
$13.02 |
$65,100 |
4,000
Direct
|
-55.56%
|
Disposed |
5318.3%
(price as of 2026-08-21)
|
| Jan. 6, 2005 |
WST
|
M |
5,000 |
$25.52 |
$127,600 |
17,901
Direct
|
-21.83%
|
Disposed |
2664.3%
(price as of 2026-08-21)
|
| Jan. 6, 2005 |
WST
|
M |
5,000 |
$13.02 |
$65,100 |
22,901
Direct
|
+27.93%
|
Acquired |
5318.3%
(price as of 2026-08-21)
|
| Dec. 31, 2004 |
WST
|
A |
11 |
$25.03 |
$275 |
2,961
Indirect
|
+0.37%
|
Acquired |
2718.5%
(price as of 2026-08-21)
|
| Dec. 17, 2004 |
WST
|
A |
13 |
$23.50 |
$306 |
2,917
Indirect
|
+0.45%
|
Acquired |
2902.0%
(price as of 2026-08-21)
|
| Dec. 3, 2004 |
WST
|
A |
13 |
$23.45 |
$305 |
2,904
Indirect
|
+0.45%
|
Acquired |
2908.4%
(price as of 2026-08-21)
|
| Nov. 19, 2004 |
WST
|
A |
13 |
$22.86 |
$297 |
2,891
Indirect
|
+0.45%
|
Acquired |
2986.0%
(price as of 2026-08-21)
|
| Nov. 5, 2004 |
WST
|
A |
13 |
$22.92 |
$298 |
2,878
Indirect
|
+0.45%
|
Acquired |
2977.9%
(price as of 2026-08-21)
|
| Oct. 25, 2004 |
WST
|
A |
14 |
$21.82 |
$305 |
2,865
Indirect
|
+0.49%
|
Acquired |
3133.1%
(price as of 2026-08-21)
|
| Oct. 8, 2004 |
WST
|
A |
14 |
$21.27 |
$298 |
2,852
Indirect
|
+0.49%
|
Acquired |
3216.7%
(price as of 2026-08-21)
|
| Sept. 24, 2004 |
WST
|
A |
8 |
$39.00 |
$312 |
751
Indirect
|
+1.08%
|
Acquired |
3517.7%
(price as of 2026-08-21)
|
| Sept. 10, 2004 |
WST
|
A |
7 |
$40.05 |
$280 |
743
Indirect
|
+0.95%
|
Acquired |
3422.9%
(price as of 2026-08-21)
|
| Aug. 27, 2004 |
WST
|
A |
7 |
$39.88 |
$279 |
736
Indirect
|
+0.96%
|
Acquired |
3437.9%
(price as of 2026-08-21)
|
| Aug. 13, 2004 |
WST
|
A |
8 |
$36.95 |
$296 |
729
Indirect
|
+1.11%
|
Acquired |
3718.5%
(price as of 2026-08-21)
|
| July 30, 2004 |
WST
|
A |
8 |
$38.09 |
$305 |
720
Indirect
|
+1.12%
|
Acquired |
3604.2%
(price as of 2026-08-21)
|
| July 16, 2004 |
WST
|
A |
7 |
$40.21 |
$281 |
709
Indirect
|
+1.00%
|
Acquired |
3408.9%
(price as of 2026-08-21)
|
| July 2, 2004 |
WST
|
A |
7 |
$42.68 |
$299 |
701
Indirect
|
+1.01%
|
Acquired |
3205.8%
(price as of 2026-08-21)
|
| June 29, 2004 |
WST
|
A |
3,763 |
$40.88 |
$153,831 |
9,552
Direct
|
+65.00%
|
Acquired |
3351.4%
(price as of 2026-08-21)
|
| June 18, 2004 |
WST
|
A |
7 |
$40.10 |
$281 |
694
Indirect
|
+1.02%
|
Acquired |
3418.5%
(price as of 2026-08-21)
|
| June 4, 2004 |
WST
|
A |
8 |
$37.48 |
$300 |
687
Indirect
|
+1.18%
|
Acquired |
3664.5%
(price as of 2026-08-21)
|
| May 21, 2004 |
WST
|
A |
8 |
$37.55 |
$300 |
679
Indirect
|
+1.19%
|
Acquired |
3657.4%
(price as of 2026-08-21)
|
| May 7, 2004 |
WST
|
A |
7 |
$38.50 |
$270 |
671
Indirect
|
+1.05%
|
Acquired |
3564.7%
(price as of 2026-08-21)
|
| May 5, 2004 |
WST
|
A |
299 |
$36.50 |
$10,914 |
3,184
Direct
|
+10.36%
|
Acquired |
3765.5%
(price as of 2026-08-21)
|
| May 5, 2004 |
WST
|
A |
1,937 |
— |
— |
5,121
Direct
|
+60.84%
|
Acquired |
(price as of 2026-08-21)
|
| May 5, 2004 |
WST
|
A |
668 |
$36.50 |
$24,382 |
1,328
Indirect
|
+101.21%
|
Acquired |
3765.5%
(price as of 2026-08-21)
|
| May 5, 2004 |
WST
|
A |
7,300 |
$38.73 |
$282,729 |
7,300
Direct
|
—
|
Acquired |
3543.0%
(price as of 2026-08-21)
|
| May 5, 2004 |
WST
|
A |
7,300 |
$38.73 |
$282,729 |
7,300
Direct
|
—
|
Acquired |
3543.0%
(price as of 2026-08-21)
|
| May 5, 2004 |
WST
|
A |
1,937 |
— |
— |
5,789
Direct
|
+50.29%
|
Acquired |
(price as of 2026-08-21)
|
| May 5, 2004 |
WST
|
A |
967 |
$36.50 |
$35,296 |
3,852
Direct
|
+33.52%
|
Acquired |
3765.5%
(price as of 2026-08-21)
|
| April 26, 2004 |
WST
|
M |
400 |
$32.84 |
$13,136 |
0
Direct
|
-100.00%
|
Disposed |
4196.3%
(price as of 2026-08-21)
|
| April 26, 2004 |
WST
|
M |
2,165 |
$32.84 |
$71,099 |
400
Direct
|
-84.41%
|
Disposed |
4196.3%
(price as of 2026-08-21)
|
| April 26, 2004 |
WST
|
M |
400 |
$32.84 |
$13,136 |
2,885
Direct
|
+16.10%
|
Acquired |
4196.3%
(price as of 2026-08-21)
|
| April 26, 2004 |
WST
|
S |
2,165 |
$39.20 |
$84,868 |
2,485
Direct
|
-46.56%
|
Disposed |
3499.3%
(price as of 2026-08-21)
|
| April 26, 2004 |
WST
|
M |
2,165 |
$32.84 |
$71,099 |
4,650
Direct
|
+87.12%
|
Acquired |
4196.3%
(price as of 2026-08-21)
|
| April 23, 2004 |
WST
|
A |
7 |
$39.14 |
$274 |
660
Indirect
|
+1.07%
|
Acquired |
3504.8%
(price as of 2026-08-21)
|
| April 8, 2004 |
WST
|
A |
7 |
$38.80 |
$272 |
653
Indirect
|
+1.08%
|
Acquired |
3536.4%
(price as of 2026-08-21)
|
| March 31, 2004 |
WST
|
M |
1,935 |
$32.84 |
$63,545 |
2,565
Direct
|
-43.00%
|
Disposed |
4196.3%
(price as of 2026-08-21)
|
| March 31, 2004 |
WST
|
F |
1,700 |
$37.36 |
$63,512 |
2,485
Direct
|
-40.62%
|
Disposed |
3676.6%
(price as of 2026-08-21)
|
| March 31, 2004 |
WST
|
F |
83 |
$37.36 |
$3,101 |
4,185
Direct
|
-1.94%
|
Disposed |
3676.6%
(price as of 2026-08-21)
|
| March 31, 2004 |
WST
|
M |
1,935 |
$32.84 |
$63,545 |
4,268
Direct
|
+82.94%
|
Acquired |
4196.3%
(price as of 2026-08-21)
|
| March 26, 2004 |
WST
|
A |
8 |
$36.13 |
$289 |
646
Indirect
|
+1.25%
|
Acquired |
3805.1%
(price as of 2026-08-21)
|
| March 12, 2004 |
WST
|
A |
8 |
$36.37 |
$291 |
638
Indirect
|
+1.27%
|
Acquired |
3779.4%
(price as of 2026-08-21)
|
| Feb. 27, 2004 |
WST
|
A |
8 |
$36.88 |
$295 |
630
Indirect
|
+1.29%
|
Acquired |
3725.7%
(price as of 2026-08-21)
|
| Feb. 13, 2004 |
WST
|
A |
8 |
$36.15 |
$289 |
622
Indirect
|
+1.30%
|
Acquired |
3803.0%
(price as of 2026-08-21)
|
| Jan. 30, 2004 |
WST
|
A |
8 |
$35.60 |
$285 |
614
Indirect
|
+1.32%
|
Acquired |
3863.3%
(price as of 2026-08-21)
|
| Jan. 16, 2004 |
WST
|
A |
8 |
$35.41 |
$283 |
603
Indirect
|
+1.34%
|
Acquired |
3884.5%
(price as of 2026-08-21)
|
| Jan. 2, 2004 |
WST
|
A |
8 |
$34.08 |
$273 |
594
Indirect
|
+1.37%
|
Acquired |
4040.0%
(price as of 2026-08-21)
|
| Dec. 19, 2003 |
WST
|
A |
8 |
$35.01 |
$280 |
586
Indirect
|
+1.38%
|
Acquired |
3930.0%
(price as of 2026-08-21)
|
| Dec. 5, 2003 |
WST
|
A |
8 |
$33.92 |
$271 |
578
Indirect
|
+1.40%
|
Acquired |
4059.6%
(price as of 2026-08-21)
|
| Nov. 20, 2003 |
WST
|
A |
9 |
$32.42 |
$292 |
569
Indirect
|
+1.61%
|
Acquired |
4252.0%
(price as of 2026-08-21)
|
| Nov. 7, 2003 |
WST
|
A |
8 |
$34.95 |
$280 |
561
Indirect
|
+1.45%
|
Acquired |
3937.0%
(price as of 2026-08-21)
|
| Oct. 24, 2003 |
WST
|
A |
9 |
$31.50 |
$284 |
549
Indirect
|
+1.67%
|
Acquired |
4379.1%
(price as of 2026-08-21)
|
| Oct. 10, 2003 |
WST
|
A |
9 |
$32.80 |
$295 |
540
Indirect
|
+1.69%
|
Acquired |
4201.6%
(price as of 2026-08-21)
|
| Sept. 26, 2003 |
WST
|
A |
9 |
$31.99 |
$288 |
531
Indirect
|
+1.72%
|
Acquired |
4310.5%
(price as of 2026-08-21)
|
| Sept. 11, 2003 |
WST
|
A |
9 |
$31.88 |
$287 |
522
Indirect
|
+1.75%
|
Acquired |
4325.7%
(price as of 2026-08-21)
|
| Aug. 28, 2003 |
WST
|
A |
10 |
$27.90 |
$279 |
513
Indirect
|
+1.99%
|
Acquired |
4957.1%
(price as of 2026-08-21)
|
| Aug. 15, 2003 |
WST
|
A |
11 |
$26.62 |
$293 |
503
Indirect
|
+2.24%
|
Acquired |
5200.2%
(price as of 2026-08-21)
|
| Aug. 1, 2003 |
WST
|
A |
11 |
$27.21 |
$299 |
492
Indirect
|
+2.29%
|
Acquired |
5085.3%
(price as of 2026-08-21)
|