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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: 2/21/25 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
$109.71 $162.64 $108.56 $14,120 129 591 1.9% 4.5% 27.88% 73.49%
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 JAMES
CB,DIR
JS
---
36,632
---
3/28/24
---
---
45,193
-44.8
D
---
4/1/24 - 6:26:00 am
2
    
 
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
3
    
 
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
4
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
5
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
6
    
 
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
7
    
 
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
8
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
9
    
 
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
10
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
11
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
12
    
 
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
13
    
 
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
14
    
 
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
15
    
 
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
16
    
 
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
17
    
 
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
18
    
 
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
19
    
 
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
20
    
 
JANSSENS THOMAS J
VP,OO
JB
---
3,516
2/16/24
2/19/24
---
---
13,047
36.9
D
R
2/21/24 - 10:30:30 am
21
    
 
EDERINGTON L BENJAMIN
VP,GC,CAO
JB
---
13,190
2/16/24
2/19/24
---
---
61,106
27.5
D
R
2/21/24 - 10:29:45 am
22
    
 
CHAO JAMES
CB,DIR
JB
---
32,388
2/16/24
2/19/24
---
---
94,787
51.9
D
R
2/21/24 - 10:28:51 am
23
    
 
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
24
    
 
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
25
    
 
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
26
1y
20
30%
24%
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
27
    
 
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
28
1y
22
41%
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
29
    
 
CHAO DAVID TSUNG HUNG
DIR,BO
JB
---
19,423
---
8/31/23
---
---
19,423
New
I
---
9/1/23 - 10:15:10 am
30
    
 
CHAO CATHERINE T
DIR,BO
JB
---
19,423
---
8/31/23
---
---
19,423
New
I
---
9/1/23 - 10:14:12 am
31
1y
20
30%
24%
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
32
    
 
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
33
1y
13
38%
12%
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
34
    
 
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
35
1y
20
30%
24%
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
36
    
 
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
37
1y
3
67%
-11%
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
38
    
 
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
39
1y
13
38%
12%
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
40
    
 
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
41
1y
22
41%
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
42
    
 
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
43
1y
22
41%
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
44
    
 
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
45
    
 
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
46
    
 
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
47
    
 
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
48
    
 
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
49
    
 
ZOELLER JOHNATHAN STEVAN
VP,CAO
JB
---
588
---
8/13/23
---
---
2,704
27.8
D
R
8/15/23 - 10:44:13 am
50
    
 
SHEETS JEFFREY WAYNE
DIR
JB
---
1,446
---
8/12/23
---
---
10,495
16.0
D
R
8/14/23 - 9:19:37 am
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