John Tsung-chen Chao

WLK

John Tsung-chen Chao serves as Director 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

2 trades

$32.5K

Net Position

Net Seller

$32.5K

Companies Traded

WLK

Active Period

Feb 2026

2 total trades

Most Recent

Sell WLK

Feb 19, 2026 · $8.6K

John Tsung-chen Chao's Insider Trading at Westlake Corporation (WLK)

Buys

0 · $0.00

Sells

2 · $32.5K

Total Shares Bought

Total Shares Sold

333

WLK Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Feb 19, 2026↗	Sell	91	$94.10	$8.6K	0
Feb 17, 2026↗	Sell	242	$98.95	$23.9K	0

Related Insiders

Mark Steven Bender

officer: EVP & CFO

WLKSell · Feb 27, 2026

Robert F. Buesinger

EVP, PEM Segment Head

WLKSell · Feb 20, 2026

Albert Chao

Executive Chairman

WLKSell · Feb 20, 2026

James Chao

Senior Chairman

WLKSell · Feb 20, 2026

L. Benjamin Ederington

EVP, Legal & External Affairs

WLKSell · Feb 20, 2026

Jeffrey Adam Holy

VP and CAO

WLKSell · Feb 20, 2026

Mark Steven Bender

EVP & CFO

WLKSell · Feb 20, 2026

Scott Thomas Szwejbka

SVP, HIP Segment Head

WLKSell · Feb 20, 2026

Explore More Insider Trading Data

WLK Insider Trading Activity

View all insider trades at Westlake Corporation

Basic Materials Sector Insider Trades

See insider activity across basic materials stocks

Latest Insider Buys

Most recent insider purchases across all stocks

CEO Stock Purchases

Track CEO buying activity