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Westlake Corp Stock: price and insider trades · United States
No insider purchase over the last 90 days. The latest was filed 09 Jun 2025.
Westlake Corp: what insiders have been doing
This page follows insider dealings at Westlake Corp as filed with SEC (Form 4), a company from the Chemicals & Materials sector based in Houston, United States. The group dates from 1986. Over the twelve months to 18 October 2026, 36 filings were filed, from 18 insiders.
There is no open-market purchase to report; the filings show 4 sales worth €4.7M by 3 insiders. The largest single trade was a sale of €2.2M by Chao Albert, published on 11 August 2026, equal to 0.028% of the market capitalisation.
Typically, a trade is published a median of 2 days after it takes place. The legal deadline for a Form 4 is two business days after the transaction. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify.
With 36 filings in twelve months, the company is more active than the median of 22 filings across the 5,458 companies we follow on the same exchange. Over the whole record (from 2021), the tally stands at 2 purchases and 21 sales. The 10-K for the year ended 31 December 2025 shows 11.17 bn USD of revenue and -1.51 bn USD of net income and a dividend of 2.11 USD per share.
In the same sector, recent insider purchases at Culp Inc and Gold.com, Inc. also feature in our signals. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Insider Decl.
227
Thresholds
n/a
Buy Volume
€227,091
2 ops. · all time
Sell Volume
€10M
21 ops. · all time
Who traded when
BuySaleAlbert Chao2 sales
David Tsung-Hung Chao2 sales
Robert F. Buesinger1 buy1 sale
Mark Steven Bender1 sale
Since the insiders bought
- +9.2%Entry US$79.81 · Close at T+365 US$87.12
- +12.9%Entry US$87.35 · Close at T+365 US$98.63
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Analyst consensus: bullish or bearish?
Analysts rate Westlake Corp Buy (bullish), based on 17 analysts. Average price target: US$81.65.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 23,275 of 24,161 companies
13.7
score / 100
Value16
Quality12
FCF yld-6.5%
Earn yld-19%
EV/EBITDA·
ROE-12%
Gross mgn7.3%
Net mgn-13%
Debt/EBITDA·
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$63.33
Analyst consensus
17 analystsBuy
US$65.00Target US$81.65(+29%)US$114.00
Income statement
RevenueUS$11.2B
Gross profitUS$813M7% margin
EBITDA-US$248M-2% margin
Net income-US$1.5B-10.9% margin
Valuation
PER (forward)23.8x
P/Book0.9x
Beta0.69
Balance sheet & cash
Market capUS$8.1B
Total debtUS$6.4B
Free Cash Flow-US$530M
Debt / Equity64%
Profitability & ownership
ROE-11.9%
ROA0.4%
% insiders74.5%
% institutions31.6%
Last declaration on 11 August 2026
Declarations227 total
38,873 shares@ US$80.28010.036% mcap100.0% of flowCommonSEC144:0001950047-26-007941
38,873 shares@ US$61.8650.027% mcap14.2% of flowCommon StockSEC:0001193125-26-345140:0
7,489 shares@ US$79.700.0067% mcap3.5% of flowCommon StockSEC:0001193125-26-345140:1
31,384 shares@ US$80.420.028% mcap14.9% of flowCommon StockSEC:0001193125-26-345140:2
2,168 sharesCommon StockSEC:0001193125-26-341999:0
2,168 sharesCommon StockSEC:0001193125-26-341996:0
2,168 sharesCommon StockSEC:0001193125-26-341997:0
2,168 sharesCommon StockSEC:0001193125-26-342001:0
2,168 sharesCommon StockSEC:0001193125-26-342004:0
2,168 sharesCommon StockSEC:0001193125-26-342006:0
2,168 sharesCommon StockSEC:0001193125-26-342008:0
2,168 sharesCommon StockSEC:0001193125-26-342010:0
2,168 sharesCommon StockSEC:0001193125-26-342011:0
13,164 shares0Common StockSEC:0001193125-26-223323:0
4,000 shares@ US$115.250.0036% mcap6.7% of flowCommon StockSEC:0001193125-26-133508:0
16,413 shares@ US$112.53526.2% of flowCommon StockSEC:0001193125-26-131706:0
1,171 shares@ US$104.960.0013% mcap7.3% of flowCommon StockSEC:0001193125-26-096289:0
6,199 shares@ US$65.81255.7% of flowCommon StockSEC:0001193125-26-084672:0
264 shares0Common StockSEC:0001193125-26-063705:0
1,425 shares0Common StockSEC:0001193125-26-063700:0
3,884 shares0Common StockSEC:0001193125-26-063659:0
365 shares0Common StockSEC:0001193125-26-063707:0
1,301 shares0Common StockSEC:0001193125-26-063688:0
213 shares0Common StockSEC:0001193125-26-063669:0
1,777 shares0Common StockSEC:0001193125-26-063686:0
25 of 227 declarations
About Westlake Corp
Westlake Corporation (NYSE: WLK) is a U.S.-listed industrial materials company headquartered in Houston, Texas, United States. Founded in 1986, Westlake has evolved through a combination of acquisitions, capacity expansions and vertical integration into a global manufacturer and supplier of essential materials and finished products used across housing, infrastructure and a broad range of industrial end markets. The company’s business model is built around a highly integrated value chain that runs from ethylene and chlor-alkali derivatives into vinyls, polyethylene, epoxy and downstream PVC-based products.
Westlake reports its operations in two primary segments. Performance and Essential Materials includes North American vinyls, North American chlor-alkali and derivatives, European and Asian chlorovinyls, olefins, polyethylene and epoxy. Housing and Infrastructure Products includes Westlake Royal Building Products, pipe and fittings, global compounds and Dimex. This combination gives the company exposure to both commodity chemical markets and more value-added building materials, serving customers in residential and commercial construction, packaging, automotive, healthcare, water treatment, coatings and other durable and non-durable goods.
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From a competitive standpoint, Westlake’s integration provides several structural advantages: tighter control over feedstock costs, downstream capture of margin, and the ability to adjust product mix across multiple end markets. That said, the company remains exposed to cyclical conditions in petrochemicals, energy and construction demand, as well as to environmental regulation and regional volatility in Europe, Asia and North America. Its footprint across the United States, Europe and Asia broadens its reach while also increasing sensitivity to local energy costs, trade flows and macroeconomic conditions.
Recent company highlights point to an active portfolio-management and rationalization phase. In 2025, Westlake announced plans to shut down certain North American chlorovinyl and styrene assets, citing persistently challenging market conditions in global commodity chemicals. The company also announced an acquisition of the ACI/Perplastic compounding business to expand its Housing & Infrastructure Products platform and add specialty materials capability. In addition, Westlake has communicated sustainability objectives, including a target to reduce carbon emissions intensity by 20% by 2030 versus a 2016 baseline. For investors, Westlake remains a U.S. chemicals-and-materials name with a balanced profile: cyclical at the commodity level, but supported by downstream building-products exposure and continued strategic restructuring.
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