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Insider Trading

Last Updated: 5 days, 15 hours ago

Albert Chao has an estimated net worth of at least $54.1 million*, as of June 25, 2025. They own 93.4 million shares of WLK stock. They have sold 99,450 shares of WLK stock since 2021, for an estimated $10.3 million.

Albert Chao $WLK SEC Form 4 Insider Trading

Albert Chao has filed a total of 14 insider trades in $WLK since 2021. Their most recent trade was a sale of 12,016 shares, made on May 19, 2022. Their largest trade was a sale of 20,815 shares, made on May 19, 2022. We estimate that they now own 93.4 million shares of $WLK, worth an estimated $43.8 million.



Insider Trading at $WLK

There have been a total of 50 insider trades reported at $WLK since 2021, with 3,083 shares purchased and 251,283 shares sold. The most active insider traders in $WLK stock have been Albert Chao, Mark Steven Bender, and Robert F. Buesinger. The most recent trade was a purchase of 83 shares reported by Robert F. Buesinger (EVP, PEM Segment Head), made on Apr 22, 2025.



History of Insider Stock Trades by Albert Chao

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
WLK logo WLK Sale 12,016 May 19, 2022 May 23, 2022, 12:07 p.m.
WLK logo WLK Sale 5,045 May 19, 2022 May 23, 2022, 12:07 p.m.
WLK logo WLK Sale 20,815 May 19, 2022 May 23, 2022, 12:07 p.m.
WLK logo WLK Sale 1,700 Dec 02, 2021 Dec. 6, 2021, 11:49 a.m.
WLK logo WLK Sale 1,175 Dec 02, 2021 Dec. 6, 2021, 11:49 a.m.
WLK logo WLK Sale 7,585 Dec 02, 2021 Dec. 6, 2021, 11:49 a.m.
WLK logo WLK Sale 20,327 Dec 02, 2021 Dec. 6, 2021, 11:49 a.m.
WLK logo WLK Sale 9,656 Dec 01, 2021 Dec. 3, 2021, 8:56 a.m.
WLK logo WLK Sale 5,842 Dec 01, 2021 Dec. 3, 2021, 8:56 a.m.
WLK logo WLK Sale 3,000 Dec 01, 2021 Dec. 3, 2021, 8:56 a.m.
WLK logo WLK Sale 3,789 Dec 01, 2021 Dec. 3, 2021, 8:56 a.m.
WLK logo WLK Sale 4,200 Dec 01, 2021 Dec. 3, 2021, 8:56 a.m.
WLK logo WLK Sale 4,300 Dec 01, 2021 Dec. 3, 2021, 8:56 a.m.
WLK logo WLK Purchase 3,000 Aug 11, 2021 Aug. 11, 2021, 8 p.m.




$WLK Executives and Stock Owners with Insider Trades



*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.