Albert Chao sold $3.1M of Westlake (WLK)

Executed Aug 11, disclosed Aug 11, the same day.

Value, as filed

$3.1M

38,873 sh across 2 lots

Executed

Aug 11

the trade date, as filed

Disclosed

Aug 11

0 days after the trade

Return, 21 sessionsiFrom the disclosed entry session; derived

–

purchases only

Returns are measured on stock purchases only.

The filer

Albert Chao Executive Chairman profile →

Albert Chao (Executive Chairman) filed 2 Form 4 reports in the trailing twelve months (0 purchases, 2 sales), most often in Westlake Corporation (WLK). The largest single filing was $3.1M of WLK (38,873 sh across 2 lots, as filed), executed Aug 11.

The name

WLK

Westlake Corporation WLK · Basic Materials · 7 filings in 24 months ticker →

Basic Materials · Westlake Corporation manufactures and markets performance and essential materials, and housing and infrastructure products in the United St…

More Basic Materials filings→ Insider filings, newest first→ View the original filing at www.sec.gov→

Other filings by Albert Chao in WLK

WLKSALE Westlake Corporation $3.0M
40,315 sh across 2 lots
Exec Dec 22 2025
Filed Dec 23 2025 · 5:30 PM ET