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 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
WESTLAKE CORP: WLK
Price: 11/8/24 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
$132.15 $162.64 $118.64 $17,008 129 475 1.6% 2.9% 27.02% 73.35%
Exch Sector Industry Sub-Industry
NYSE Manufacturing Chemicals And Allied Products Industrial Organic Chemicals
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#
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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
    
 
CHAO ALBERT
PR,CEO,DIR
JB
---
59,548
2/16/24
2/19/24
---
---
579,696
11.4
D
R
2/21/24 - 10:28:30 am
2
    
 
BUESINGER ROBERT F
VP,TO
JB
---
12,875
2/16/24
2/19/24
---
---
29,629
76.8
D
R
2/21/24 - 10:27:49 am
3
    
 
BENDER MARK STEVEN
VP,CFO
JB
---
16,708
2/16/24
2/19/24
---
---
61,108
37.6
D
R
2/21/24 - 10:25:53 am
4
1y
17
29%
27%
2
CHAO JAMES
CB,DIR,BO
OS
$8,764,958
68,213
---
11/30/23
$128.37
$129.14
62,399
-52.2
D
---
12/1/23 - 2:23:02 pm
5
    
 
CHAO JAMES
CB,DIR,BO
OE
$5,383,968
68,213
---
11/30/23
$65.81
$108.12
130,612
109.3
D
---
12/1/23 - 2:23:02 pm
6
1y
18
44%
13%
1
BUESINGER ROBERT F
VP,TO
S
$550,058
4,215
---
11/15/23
---
$130.50
16,754
-20.1
D
---
11/17/23 - 8:28:44 am
7
    
 
CHAO DAVID TSUNG HUNG
DIR,BO
JB
---
19,423
---
8/31/23
---
---
19,423
New
I
---
9/1/23 - 10:15:10 am
8
    
 
CHAO CATHERINE T
DIR,BO
JB
---
19,423
---
8/31/23
---
---
19,423
New
I
---
9/1/23 - 10:14:12 am
9
1y
17
29%
27%
2
CHAO JAMES
CB,DIR,BO
OS
$32,102,690
302,859
---
8/31/23
---
$132.48
62,372
-82.9
D
---
9/1/23 - 10:12:07 am
10
    
 
CHAO JAMES
CB,DIR,BO
OE
$17,096,978
244,591
---
8/31/23
$44.42
$65.81
365,231
202.7
D
---
9/1/23 - 10:12:07 am
11
1y
11
45%
13%
2
CHAO ALBERT
PR,CEO,DIR,BO
OS
$2,629,034
19,988
---
8/31/23
$131.20
$132.67
520,148
-3.7
D
---
9/1/23 - 10:11:23 am
12
    
 
CHAO ALBERT
PR,CEO,DIR,BO
OE
$1,278,782
19,988
---
8/31/23
---
$63.98
540,136
3.8
D
---
9/1/23 - 10:11:23 am
13
1y
17
29%
27%
2
CHAO JAMES
CB,DIR,BO
OS
$4,018,577
30,056
---
8/30/23
---
$133.70
120,640
-19.9
D
---
8/31/23 - 2:36:42 pm
14
    
 
CHAO JAMES
CB,DIR,BO
OE
$1,626,726
30,056
---
8/30/23
---
$44.42
150,696
24.9
D
---
8/31/23 - 2:36:42 pm
15
1y
2
100%
-22%
2
EDERINGTON L BENJAMIN
VP,GC,CAO
OS
$1,844,023
13,734
---
8/30/23
---
$134.27
47,916
-22.3
D
---
8/31/23 - 11:37:08 am
16
    
 
EDERINGTON L BENJAMIN
VP,GC,CAO
OE
$849,654
13,734
---
8/30/23
---
$61.87
61,650
28.7
D
---
8/31/23 - 11:37:08 am
17
1y
11
45%
13%
2
CHAO ALBERT
PR,CEO,DIR,BO
OS
$2,682,968
20,000
---
8/30/23
$134.09
$134.60
520
-97.5
D
---
8/31/23 - 11:36:34 am
18
    
 
CHAO ALBERT
PR,CEO,DIR,BO
OE
$1,279,550
20,000
---
8/30/23
---
$63.98
540,148
3.8
D
---
8/31/23 - 11:36:34 am
19
1y
18
44%
13%
1
BUESINGER ROBERT F
VP,TO
OS
$653,136
4,857
---
8/30/23
---
$134.47
20,969
-18.8
D
---
8/31/23 - 11:35:34 am
20
    
 
BUESINGER ROBERT F
VP,TO
OE
$420,315
4,857
---
8/30/23
---
$86.54
25,826
23.2
D
---
8/31/23 - 11:35:34 am
21
1y
18
44%
13%
1
BUESINGER ROBERT F
VP,TO
OS
$1,084,024
8,100
---
8/29/23
---
$133.83
20,969
-27.9
D
---
8/30/23 - 10:50:51 am
22
    
 
BUESINGER ROBERT F
VP,TO
OE
$533,081
8,100
---
8/29/23
---
$65.81
29,069
38.6
D
---
8/30/23 - 10:50:51 am
23
    
 
JANSSENS THOMAS J
VP,OO
OS
$516,079
3,855
---
8/29/23
---
$133.87
9,531
-28.8
D
---
8/30/23 - 8:56:09 am
24
    
 
JANSSENS THOMAS J
VP,OO
OE
$415,880
3,855
---
8/29/23
$107.75
$108.12
13,386
40.4
D
---
8/30/23 - 8:56:09 am
25
    
 
CHAO DAVID TSUNG HUNG
DIR,BO
S
$131,000
1,000
---
8/23/23
---
$131.00
10,148
-9.0
D
---
8/24/23 - 7:40:22 am
26
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
JS
$19,024
144
---
8/14/23
---
$132.11
2,560
-5.3
D
R
8/15/23 - 10:44:13 am
27
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
JB
---
588
---
8/13/23
---
---
2,704
27.8
D
R
8/15/23 - 10:44:13 am
28
    
 
SHEETS JEFFREY WAYNE
DIR
JB
---
1,446
---
8/12/23
---
---
10,495
16.0
D
R
8/14/23 - 9:19:37 am
29
    
 
NORTHCUTT R BRUCE
DIR
JB
---
1,446
---
8/12/23
---
---
18,919
8.3
D
R
8/14/23 - 9:18:33 am
30
    
 
MCCOLLUM MARK A
DIR
JB
---
1,446
---
8/12/23
---
---
7,392
24.3
D
R
8/14/23 - 9:17:58 am
31
    
 
LUBEL KIMBERLY S
DIR
JB
---
1,446
---
8/12/23
---
---
9,389
18.2
D
R
8/14/23 - 9:17:27 am
32
    
 
HAAS MARIUS
DIR
JB
---
1,446
---
8/12/23
---
---
10,495
16.0
D
R
8/14/23 - 9:16:42 am
33
    
 
GRAFF MICHAEL J
DIR
JB
---
1,446
---
8/12/23
---
---
18,878
8.3
D
R
8/14/23 - 9:16:07 am
34
    
 
CHAO DAVID TSUNG HUNG
DIR,BO
JB
---
1,446
---
8/12/23
---
---
11,148
14.9
D
R
8/14/23 - 9:15:23 am
35
1y
32
44%
11%
2
BENDER MARK STEVEN
VP,CFO
OS
$3,287,616
24,639
---
8/7/23
$132.43
$133.99
44,400
-35.7
D
---
8/9/23 - 12:02:03 pm
36
    
 
BENDER MARK STEVEN
VP,CFO
OE
$2,387,453
24,639
---
8/7/23
---
$86.54
69,039
55.5
D
---
8/9/23 - 12:02:03 pm
37
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
OS
$229,004
1,963
---
5/19/23
---
$116.66
2,116
-48.1
D
---
5/22/23 - 10:34:59 am
38
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
OE
$169,874
1,963
---
5/19/23
---
$86.54
4,079
92.8
D
---
5/22/23 - 10:34:59 am
39
    
 
CHAO CATHERINE T
DIR,BO
3
---
---
---
5/11/23
---
---
2,000
---
D
---
5/11/23 - 11:03:14 am
40
    
 
CHAO CATHERINE T
DIR,BO
3
---
---
---
5/11/23
---
---
93,405,552
---
I
---
5/11/23 - 11:03:14 am
41
    
 
SABAT CAROLYN CHAO
DIR,BO
3
---
---
---
5/11/23
---
---
93,405,552
---
I
---
5/11/23 - 11:02:23 am
42
1y
32
44%
11%
2
BENDER MARK STEVEN
VP,CFO
OS
$130,109
1,084
---
5/8/23
---
$120.03
44,400
-2.4
D
---
5/10/23 - 7:42:15 am
43
    
 
BENDER MARK STEVEN
VP,CFO
OE
$71,341
1,084
---
5/8/23
---
$65.81
45,484
2.4
D
---
5/10/23 - 7:42:15 am
44
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
JS
$39,386
377
---
3/13/23
$104.32
$107.32
2,116
-15.1
D
A
3/15/23 - 3:23:36 pm
45
    
 
KEARNS ROGER L
COO,VP
JS
$619,868
5,936
---
3/13/23
$104.32
$106.41
39,849
-13.0
D
A
3/15/23 - 3:22:23 pm
46
    
 
JANSSENS THOMAS J
VP,OO
JS
$101,475
972
---
3/13/23
$104.32
$105.86
9,531
-9.3
D
A
3/15/23 - 3:21:29 pm
47
    
 
EDERINGTON L BENJAMIN
VP,GC,CAO,SEC
JS
$483,855
4,636
---
3/13/23
$104.32
$105.29
47,916
-8.8
D
A
3/15/23 - 3:20:31 pm
48
    
 
CHAO JAMES
CB,DIR,BO
JS
$1,630,639
15,625
---
3/13/23
$104.32
$105.13
120,640
-11.5
D
A
3/15/23 - 3:19:25 pm
49
    
 
CHAO ALBERT
PR,CEO,DIR,BO
JS
$2,292,958
21,976
---
3/13/23
$104.32
$104.70
520,148
-4.1
D
A
3/15/23 - 3:18:22 pm
50
    
 
BUESINGER ROBERT F
VP,TO
JS
$495,957
4,752
---
3/13/23
$104.32
$105.27
20,969
-18.5
D
A
3/15/23 - 3:17:10 pm
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