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WESTLAKE CORP

WLK No buying or selling
CIK 0001262823 #932 in the set updated 17 Sep 2026
Bought (1 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (1 mo)
$0.00
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$0.00
0 of 0 sales
Net
$0.00
$0.00 against sales at will

By person

18 insiders · 0 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Chao Albert
Executive Chairman
642,880
$51.70M
+15.9%
Ederington L. Benjamin
EVP, Legal & External Affairs
80,158
$6.45M
+37.6%
Chao James
Senior Chairman
49,774
$4.00M
+29.1%
Bender Mark Steven
EVP & CFO
35,895
$2.89M
−14.8%
Buesinger Robert F.
EVP, PEM Segment Head
34,482
$2.77M
+57.3%
NORTHCUTT R BRUCE
Director
23,351
$1.88M
+16.4%
Graff Michael J
Director
23,310
$1.87M
+16.5%
Janssens Thomas J.
SVP, Ops - PEM & Corp Logistic
17,127
$1.38M
+42.0%
Sheets Jeffrey Wayne
Director
14,927
$1.20M
+28.3%
Lubel Kimberly S
Director
13,821
$1.11M
+31.3%
Szwejbka Scott Thomas
SVP, HIP Segment Head
13,773
$1.11M
+136.7%
MCCOLLUM MARK A
Director
11,824
$950.89K
+38.6%
Chao David Tsung-Hung
Director
11,080
$891.05K
−1.8%
Chao John Tsung-chen
Director
7,888
$634.35K
+32.1%
Chao Catherine T.
Director
7,748
$623.09K
+74.0%
Sabat Carolyn Chao
Director
5,748
$462.25K
+134.4%
Holy Jeffrey Adam
VP and CAO
5,124
$412.07K
+70.8%
CREGG ROGER A
Director
3,507
$282.03K

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Nothing of that kind in this period.

What was left out

Form 4 filings counted 11
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 0
History held since 6 Sep 2016