James Chao

This profile gathers the share dealings of James Chao across 2 companies, led by Westlake Corp and Westlake Chemical Partners LP. In total, 55 filings cover trades dated from 9 March 2011 to 19 February 2026.

The open-market side counts 2 purchases for €359k alongside 12 sales for €12.5M. Sales outweigh purchases by €12.2M. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 13 share grants and 17 option exercises.

The latest filing, published on 23 February 2026, reports a share grant in Westlake Corp. The clock since the last published purchase (14 November 2018) now reads 2,897 days. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. US insiders must file a Form 4 within two business days of a trade. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.