BENDER MARK STEVEN

PrivateCIK: 1330417
Location

HOUSTON, TX

BENDER MARK STEVEN (EVP & CFO) sold 28.2% of their position (17.41K shares) of WESTLAKE CORP on the open market

Open‑market sale worth $1.76M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderBENDER MARK STEVENCIK 1330417
IssuerWESTLAKE CORPCIK 1262823
Officer· EVP & CFO
Since Feb 2026
-30.10K
Net shares
Net seller
$3.00M
Total sold
2
Open market trades
0B · 2S
7
Total transactions
12.69K acquired · 42.80K disposed
Non-Derivative Transactions5

Common Stock

Direct
M · Option Exercise

Shares

+6.20K

Price / share

$65.81

Trade value

$407.97K

% of position

10.0%
2/27/2026
61.84K68.04K

Common Stock

Direct
M · Option Exercise

Shares

+6.49K

Price / share

$86.54

Trade value

$561.98K

% of position

9.5%
2/27/2026
68.04K74.53K

Common Stock

Direct
D · Disposition

Shares

12.69K

Price / share

$98.20

Trade value

$1.25M

% of position

17.0%
2/27/2026
74.53K61.84K

Common Stock

Direct
S · Sale

Shares

16.99K

Price / share

$100.91

Trade value

$1.71M

% of position

27.5%
2/27/2026
61.84K44.85K

Common Stock

Direct
S · Sale

Shares

421.00

Price / share

$101.52

Trade value

$42.74K

% of position

0.9%
2/27/2026
44.85K44.43K
Total

Net shares

17.41K

Net value

-$2.03M

Derivative Transactions2

Employee Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

6.20K shares

Shares

6.20K

Strike price

65.8125

Held after

0.00

Exercisable

2/27/2026

Employee Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

6.49K shares

Shares

6.49K

Strike price

86.5379

Held after

0.00

Exercisable

2/27/2026
BENDER MARK STEVEN — Insider Transaction (Form 4) Filed Mar 2, 2026 | Finecho