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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
Mark Steven BenderEVP CFO2026-05-135,284$97.34
$514.34kSell
Robert F. BuesingerEVP PEM Segment Head2026-03-274,000$115.25
$461.00kSell
Mark Steven BenderEVP CFO2026-03-2716,413$112.54
$1.85MSell
Mark Steven BenderEVP CFO2026-02-2716,988$100.91
$1.71MSell
Mark Steven BenderEVP CFO2026-02-27421$101.52
$42.74kSell
Mark Steven BenderEVP CFO2026-02-276,199$65.81
$407.97kBuy
Mark Steven BenderEVP CFO2026-02-276,494$86.54
$561.98kBuy
Mark Steven BenderEVP CFO2026-02-2712,693$98.20
$1.25MSell
James ChaoSenior Chairman2026-02-201,569$94.10
$147.64kSell
Mark Steven BenderEVP CFO2026-02-20445$94.10
$41.87kSell

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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 Chao469.29%601,268,353$53.21BInsider
Albert Chao397.82%509,693,248$45.11BInsider
Dorothy C. Jenkins360.22%461,521,548$40.84BInsider
David Tsunghung Chao290.55%372,255,551$32.94BInsider
Catherine T. Chao218.73%280,241,665$24.80BInsider
Carolyn Chao Sabat145.81%186,814,688$16.53BInsider
John Tsungchen Chao144.72%185,423,996$16.41BInsider
Ttwfgp LLC109.90%140,805,831$12.46BInsider
Ttwf LP35.91%46,005,277$4.07BInsider
Orbis Allan Gray Ltd4.13%5,293,519$468.48MInstitution

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WLK vs Specialty Chemical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
WLK1.56%98.44%Net SellingNet Selling
ESI87.70%12.30%Net Selling
SOLS82.32%0.03%Net SellingNet Selling
EMN94.17%2.19%Net SellingNet Selling
RPM82.99%2.70%Net BuyingNet Buying
View Top Specialty Chemical Stocks

Westlake Stock Ownership FAQ

Who owns Westlake?

Westlake (NYSE: WLK) is owned by 34.43% institutional shareholders, 2,173.39% Westlake insiders, and 0.00% retail investors. James Chao is the largest individual Westlake shareholder, owning 601.27M shares representing 469.29% of the company. James Chao's Westlake shares are currently valued at $52.58B.

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