Mark Steven Bender

WLK

Mark Steven Bender serves as officer: EVP & CFO at Westlake Corporation (WLK). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

9 trades

$8.57M

Net Position

Net Seller

$8.57M

Companies Traded

WLK

Active Period

Mar 2021 – Mar 2026

9 total trades

Most Recent

Sell WLK

Mar 30, 2026 · $1.85M

Mark Steven Bender's Insider Trading at Westlake Corporation (WLK)

Buys

0 · $0.00

Sells

9 · $8.57M

Total Shares Bought

Total Shares Sold

86,383

WLK Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Mar 30, 2026	Sell	16,413	$112.54	$1.85M	28,015
Mar 2, 2026	Sell	17,409	$100.92	$1.76M	44,854
Feb 19, 2026	Sell	445	$94.10	$41.9K	0
Feb 17, 2026	Sell	1,209	$98.95	$119.6K	0
Nov 15, 2021	Sell	2,369	$101.57	$240.6K	22,024
Nov 10, 2021	Sell	631	$100.77	$63.6K	24,393
Nov 8, 2021	Sell	6,356	$98.80	$627.9K	25,024
Mar 15, 2021	Sell	15,740	$94.70	$1.49M	37,200
Mar 10, 2021	Sell	25,811	$92.27	$2.38M	31,380