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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
WESTLAKE CORP: WLK
Price: 12/13/24 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$119.46 $162.64 $118.50 $15,375 129 522 1.8% 3.9% 26.79% 73.35%
Exch Sector Industry Sub-Industry
NYSE Manufacturing Chemicals And Allied Products Industrial Organic Chemicals
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
CREGG ROGER A
DIR
3
---
---
---
12/10/24
---
---
---
---
---
---
12/10/24 - 7:05:08 pm
2
    
 
CHAO DAVID TSUNG HUNG
DIR
S
$225,888
1,750
---
11/29/24
---
$129.08
7,784
-18.4
D
---
12/2/24 - 7:49:03 am
3
    
 
CHAO DAVID TSUNG HUNG
DIR
S
$227,500
1,750
---
11/22/24
---
$130.00
9,534
-15.5
D
---
11/25/24 - 8:21:11 am
4
    
 
CHAO JAMES
CB,DIR
JS
---
6,642
---
8/30/24
---
---
38,551
-14.7
D
---
9/3/24 - 9:39:55 am
5
    
 
JANSSENS THOMAS J
VP,OO
OS
$2,221,930
14,864
---
8/23/24
---
$149.48
12,063
-55.2
D
---
8/26/24 - 9:40:02 am
6
    
 
JANSSENS THOMAS J
VP,OO
OE
$1,122,347
14,864
---
8/23/24
$65.81
$86.54
26,927
123.2
D
---
8/26/24 - 9:40:02 am
7
1y
13
38%
12%
2
CHAO ALBERT
CB,DIR
OS
$6,641,279
45,298
---
8/16/24
$146.61
$147.04
554,916
-7.5
D
---
8/19/24 - 2:50:42 pm
8
    
 
CHAO ALBERT
CB,DIR
OE
$3,084,341
45,298
---
8/16/24
---
$68.09
600,214
8.2
D
---
8/19/24 - 2:50:42 pm
9
    
 
EDERINGTON L BENJAMIN
VP,GC,CAO
JS
$168,129
1,156
---
8/14/24
---
$145.44
58,270
-1.9
D
R
8/15/24 - 11:00:58 am
10
    
 
BENDER MARK STEVEN
VP,CFO
JS
$168,129
1,156
---
8/14/24
---
$145.44
42,138
-2.7
D
R
8/15/24 - 11:00:45 am
11
    
 
BUESINGER ROBERT F
VP,TO
JS
$403,160
2,772
---
8/14/24
---
$145.44
21,923
-11.2
D
R
8/15/24 - 11:00:32 am
12
    
 
EDERINGTON L BENJAMIN
VP,GC,CAO
JB
---
2,938
---
8/13/24
---
---
59,426
5.2
D
R
8/15/24 - 11:00:58 am
13
    
 
BENDER MARK STEVEN
VP,CFO
JB
---
2,938
---
8/13/24
---
---
43,294
7.3
D
R
8/15/24 - 11:00:45 am
14
    
 
BUESINGER ROBERT F
VP,TO
JB
---
7,051
---
8/13/24
---
---
24,695
40.0
D
R
8/15/24 - 11:00:32 am
15
    
 
SABAT CAROLYN CHAO
DIR
JB
---
1,136
---
8/11/24
---
---
2,452
86.3
D
R
8/12/24 - 11:26:40 am
16
    
 
CHAO CATHERINE T
DIR
JB
---
1,136
---
8/11/24
---
---
4,452
34.3
D
R
8/12/24 - 11:26:24 am
17
    
 
SHEETS JEFFREY WAYNE
DIR
JB
---
1,136
---
8/11/24
---
---
11,631
10.8
D
R
8/12/24 - 11:26:04 am
18
    
 
NORTHCUTT R BRUCE
DIR
JB
---
1,136
---
8/11/24
---
---
20,055
6.0
D
R
8/12/24 - 11:25:43 am
19
    
 
LUBEL KIMBERLY S
DIR
JB
---
1,136
---
8/11/24
---
---
10,525
12.1
D
R
8/12/24 - 11:25:16 am
20
    
 
MCCOLLUM MARK A
DIR
JB
---
1,136
---
8/11/24
---
---
8,528
15.4
D
R
8/12/24 - 11:24:56 am
21
    
 
HAAS MARIUS
DIR
JB
---
1,136
---
8/11/24
---
---
11,631
10.8
D
R
8/12/24 - 11:24:27 am
22
    
 
GRAFF MICHAEL J
DIR
JB
---
1,136
---
8/11/24
---
---
20,014
6.0
D
R
8/12/24 - 11:24:09 am
23
    
 
CHAO DAVID TSUNG HUNG
DIR
JB
---
1,136
---
8/11/24
---
---
11,284
11.2
D
R
8/12/24 - 11:23:50 am
24
    
 
GILSON JEAN MARC
PR,CEO
3
---
---
---
7/15/24
---
---
---
---
---
---
7/15/24 - 12:15:07 pm
25
    
 
SABAT CAROLYN CHAO
DIR
JB
---
1,316
---
5/12/24
---
---
1,316
New
D
R
5/13/24 - 9:25:26 am
26
    
 
CHAO CATHERINE T
DIR
JB
---
1,316
---
5/12/24
---
---
3,316
65.8
D
R
5/13/24 - 9:22:59 am
27
1y
22
41%
13%
1
BUESINGER ROBERT F
VP,TO
S
$554,750
3,500
---
5/9/24
---
$158.50
17,644
-16.6
D
---
5/13/24 - 11:24:32 am
28
1y
22
41%
13%
1
BUESINGER ROBERT F
VP,TO
OS
$493,448
3,133
---
5/7/24
---
$157.50
21,144
-12.9
D
---
5/8/24 - 1:15:19 pm
29
    
 
BUESINGER ROBERT F
VP,TO
OE
$384,262
3,133
---
5/7/24
---
$122.65
24,277
14.8
D
---
5/8/24 - 1:15:19 pm
30
1y
35
40%
12%
2
BENDER MARK STEVEN
VP,CFO
S
$753,341
4,950
---
5/3/24
---
$152.19
40,356
-10.9
D
---
5/6/24 - 9:21:17 am
31
    
 
HOLY JEFFREY ADAM
VP,CAO
3
---
---
---
4/25/24
---
---
3,000
---
D
R
5/2/24 - 9:41:45 am
32
    
 
CHAO JAMES
CB,DIR
JS
---
36,632
---
3/28/24
---
---
45,193
-44.8
D
---
4/1/24 - 6:26:00 am
33
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
OS
$98,921
657
---
3/21/24
---
$150.56
4,416
-13.0
D
---
3/22/24 - 2:55:01 pm
34
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
OE
$65,699
657
---
3/21/24
$86.54
$122.65
5,073
14.9
D
---
3/22/24 - 2:55:01 pm
35
1y
22
41%
13%
1
BUESINGER ROBERT F
VP,TO
S
$560,371
3,878
---
3/15/24
---
$144.50
21,144
-15.5
D
---
3/18/24 - 10:09:24 am
36
1y
22
41%
13%
1
BUESINGER ROBERT F
VP,TO
S
$17,629
122
---
3/13/24
---
$144.50
25,022
-0.5
D
---
3/14/24 - 10:53:32 am
37
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
OS
$394,442
2,776
---
3/8/24
---
$142.09
4,416
-38.6
D
---
3/11/24 - 9:03:44 am
38
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
OE
$294,050
2,776
---
3/8/24
$86.54
$122.65
7,192
62.9
D
---
3/11/24 - 9:03:44 am
39
1y
22
41%
13%
1
BUESINGER ROBERT F
VP,TO
OS
$1,806,109
12,670
---
3/7/24
---
$142.55
25,144
-33.5
D
---
3/11/24 - 9:38:59 am
40
    
 
BUESINGER ROBERT F
VP,TO
OE
$1,261,843
12,670
---
3/7/24
$86.54
$108.12
37,814
50.4
D
---
3/11/24 - 9:38:59 am
41
1y
35
40%
12%
2
BENDER MARK STEVEN
VP,CFO
S
$677,455
4,804
---
3/6/24
---
$141.02
45,306
-9.6
D
---
3/7/24 - 8:32:47 am
42
1y
35
40%
12%
2
BENDER MARK STEVEN
VP,CFO
S
$667,765
4,854
---
2/26/24
---
$137.57
50,110
-8.8
D
---
2/28/24 - 12:04:51 pm
43
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
JS
$97,482
746
---
2/20/24
$129.92
$138.30
4,416
-14.5
D
R
2/21/24 - 10:31:05 am
44
    
 
JANSSENS THOMAS J
VP,OO
JS
$128,610
984
---
2/20/24
$129.92
$138.65
12,063
-7.5
D
R
2/21/24 - 10:30:30 am
45
    
 
EDERINGTON L BENJAMIN
VP,GC,CAO
JS
$603,012
4,618
---
2/20/24
$129.92
$137.29
56,488
-7.6
D
R
2/21/24 - 10:29:45 am
46
    
 
CHAO JAMES
CB,DIR
JS
$1,692,208
12,962
---
2/20/24
$129.92
$136.97
81,825
-13.7
D
R
2/21/24 - 10:28:51 am
47
    
 
CHAO ALBERT
PR,CEO,DIR
JS
$3,235,924
24,780
---
2/20/24
$129.92
$137.37
554,916
-4.3
D
R
2/21/24 - 10:28:30 am
48
    
 
BUESINGER ROBERT F
VP,TO
JS
$585,682
4,485
---
2/20/24
$129.92
$137.38
25,144
-15.1
D
R
2/21/24 - 10:27:49 am
49
    
 
BENDER MARK STEVEN
VP,CFO
JS
$803,017
6,144
---
2/20/24
$129.92
$138.68
54,964
-10.1
D
R
2/21/24 - 10:25:53 am
50
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
JB
---
2,602
2/16/24
2/19/24
---
---
5,162
101.6
D
R
2/21/24 - 10:31:05 am
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