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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: 9/12/25 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
$88.13 $151.56 $68.55 $11,302 128 1,193 2.4% 13.3% 31.16% 74.22%
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
    
 
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
2
    
 
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
3
    
 
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
4
    
 
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
5
    
 
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
6
    
 
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
7
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
8
    
 
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
9
1y
27
52%
4%
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
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