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NYSE: WLK
Westlake Corp Stock Ownership - Who owns Westlake?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Westlake Corp insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Albert ChaoChair2026-08-117,489$79.70
$596.87kSell
Albert ChaoChair2026-08-1131,384$80.42
$2.52MSell
Albert ChaoChair2026-08-1138,873$61.87
$2.40MBuy
Mark Steven BenderEVP CFO2026-05-135,284$97.34
$514.34kSell
Mark Steven BenderEVP CFO2026-03-2716,413$112.54
$1.85MSell
Robert F. BuesingerEVP PEM Segment Head2026-03-274,000$115.25
$461.00kSell
Mark Steven BenderEVP CFO2026-02-27421$101.52
$42.74kSell
Mark Steven BenderEVP CFO2026-02-276,494$86.54
$561.98kBuy
Mark Steven BenderEVP CFO2026-02-2712,693$98.20
$1.25MSell
Mark Steven BenderEVP CFO2026-02-2716,988$100.91
$1.71MSell

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Net Insider Buy/Sell (L12M) Ownership

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WLK Shareholders

What type of owners hold Westlake Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
James Chao470.49%601,268,353$39.69BInsider
Albert Chao398.83%509,693,248$33.64BInsider
Dorothy C. Jenkins361.14%461,521,548$30.47BInsider
David Tsunghung Chao291.30%372,277,142$24.57BInsider
Catherine T. Chao219.30%280,263,256$18.50BInsider
Carolyn Chao Sabat146.18%186,816,856$12.33BInsider
John Tsungchen Chao145.09%185,423,996$12.24BInsider
Ttwfgp LLC110.18%140,805,831$9.29BInsider
Ttwf LP36.00%46,005,277$3.04BInsider
L. Benjamin Ederington0.06%80,158$5.29MInsider

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WLK vs Specialty Chemical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
WLK0.00%100.00%Net SellingNet Buying
ESI0.10%14.62%Net Selling
SOLS0.08%0.04%Net SellingNet Selling
EMN0.09%2.19%Net SellingNet Selling
AXTA0.09%99.91%Net SellingNet Selling
View Top Specialty Chemical Stocks

Westlake Stock Ownership FAQ

Who owns Westlake?

Westlake (NYSE: WLK) is owned by 0.03% institutional shareholders, 2,178.98% Westlake insiders, and 0.00% retail investors. James Chao is the largest individual Westlake shareholder, owning 601.27M shares representing 470.49% of the company. James Chao's Westlake shares are currently valued at $41.05B.

If you're new to stock investing, here's how to buy Westlake stock.
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