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Westlake Corp (WLK)

Price$75.32Cached quote
WLKNYSE
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Financial charts

Revenue

Net income

Free cash flow

Total cash / debt

CashTotal debt

Financial statements

17 annual periodsNewest to oldest
20252024202320222021202020192018201720162015201420132012201120102009
Revenue$11.17B$12.14B$12.55B$15.79B$11.78B$7.50B$8.12B$8.63B$8.04B$5.08B$108.4M$147.9M$322.4M$319.9M$446.4M$3.17B$2.33B
Gross profit$813.0M$1.96B$2.22B$4.07B$3.50B$1.02B$1.26B$1.99B$1.76B$983.0M$1.19B$1.32B$1.10B$737.0M$559.0M$482.7M$195.1M
Gross margin7.28%16.12%17.68%25.79%29.67%13.63%15.52%23.01%21.90%19.37%1,093.64%890.56%341.63%230.35%125.24%15.22%8.39%
Operating expenses$2.39B$1.08B$1.49B$1.02B$695.0M$594.0M$604.0M$579.0M$536.0M$400.0M$225.0M$193.4M$148.0M$121.6M$112.2M$104.3M$87.9M
Operating income−$1.58B$875.0M$729.0M$3.05B$2.80B$429.0M$656.0M$1.41B$1.23B$583.0M$960.0M$1.12B$953.5M$615.4M$446.8M$378.4M$107.3M
Operating margin−14.13%7.21%5.81%19.31%23.77%5.72%8.08%16.31%15.23%11.49%885.98%759.84%295.73%192.34%100.10%11.93%4.61%
EBITDA−$400.0M$1.99B$1.83B$4.11B$3.64B$1.20B$1.37B$2.05B$1.83B$961.0M$1.21B$1.33B$1.11B$759.9M$578.2M$507.1M$230.5M
EBITDA margin−3.58%16.38%14.55%26.00%30.91%16.02%16.86%23.73%22.71%18.93%1,113.02%900.78%344.68%237.52%129.53%15.99%9.91%
Net income−$1.51B$602.0M$479.0M$2.25B$2.02B$330.0M$421.0M$996.0M$1.30B$399.0M$646.0M$678.5M$610.4M$385.6M$259.0M$221.4M$53.0M
Net profit margin−13.50%4.96%3.82%14.23%17.11%4.40%5.19%11.53%16.22%7.86%596.19%458.70%189.33%120.51%58.02%6.98%2.28%
Basic EPSper basic share-$11.70$4.66$3.73$17.46$15.66$2.57$3.26$7.66$10.05$3.07$4.88$5.09$4.57$2.89$3.89$1.68$0.40
Diluted EPSper diluted share-$11.70$4.64$3.70$17.34$15.58$2.56$3.25$7.62$10.00$3.06$4.86$5.07$4.55$2.88$3.87$1.67$0.40
Review official source filings ↗

Owners

Reported shareholders

Reference date Jun 30, 2026

Reported holdings Number of shares

View holders
Top 20 reported holders of WLK
HolderShares held
BlackRock, Inc.
3.29M
Capital World Investors
2.84M
PRICE T ROWE ASSOCIATES INC /MD/
2.21M
Orbis Allan Gray Ltd
2.08M
DIMENSIONAL FUND ADVISORS LP
2.05M
VANGUARD PORTFOLIO MANAGEMENT LLC
1.75M
BRANDES INVESTMENT PARTNERS, LP
1.57M
AQR CAPITAL MANAGEMENT LLC
1.57M
VANGUARD CAPITAL MANAGEMENT LLC
1.46M
STATE STREET CORP
1.45M
GOLDMAN SACHS GROUP INC
1.28M
CITADEL ADVISORS LLC
1.05M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
1.02M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
817.21K
GEODE CAPITAL MANAGEMENT, LLC
718.6K
JACOBS LEVY EQUITY MANAGEMENT, INC
709.36K
Chao Albert
642.88K
Balyasny Asset Management L.P.
625.86K
Woodline Partners LP
451.99K
Nuveen, LLC
446.48K

Bars compare reported share counts. A matching total for this share class and reporting period is unavailable, so percentages are not shown.

Source: SEC Form 13F ↗Updated Sep 29, 2026 · Quarterly data

Insider buys & sells

Jul 1, 2024–Jun 30, 2026
Buys1$7.8K disclosed value
Sells (SEC code S)10$7.53M disclosed value
11 recent transactions
TransactionInsiderTypeSharesPriceValueOwned after
Mar 27, 2026Form 4Buesinger Robert F.EVP, PEM Segment HeadSellCommon Stock4.0K$115.25$461.0K34.5K
Mar 27, 2026Form 4Bender Mark StevenEVP & CFOSellCommon Stock16.4K$112.54$1.85M28.0K
Feb 27, 2026Form 4Bender Mark StevenEVP & CFOSellCommon Stock421$101.52$42.7K44.4K
Feb 27, 2026Form 4Bender Mark StevenEVP & CFOSellCommon Stock17.0K$100.91$1.71M44.9K
Dec 22, 2025Form 4Chao AlbertExecutive ChairmanSellCommon Stock521$74.44$38.8K627.7K
Review ownership filings at SEC.gov ↗

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