Westlake Chemical

WLK

Source: the SEC Form 13F filings of the managers we follow, latest for Q3 2026. How we use them

Managers holding

In their latest 13F (Q3 2026)

See who

Value held

$207k

Combined value at quarter end

Last quarter

0 bought

1 sold or trimmed

Price at Q2 ’26 end

$73.00

-37.5% in the quarter

Prices here are quarter-end prices implied by the 13F filings. Today’s price on Yahoo Finance

Share price change by quarter

-5.2%Q2 ’24

+3.8%Q3 ’24

-23.7%Q4 ’24

-12.8%Q1 ’25

-24.1%Q2 ’25

+58.0%Q1 ’26

-37.5%Q2 ’26

Change in the quarter-end price implied by managers’ 13F filings, adjusted for stock splits. Excludes dividends.

Managers holding it, by quarter

1Q4 ’23

1Q1 ’24

1Q2 ’24

1Q3 ’24

1Q4 ’24

1Q1 ’25

1Q2 ’25

0Q3 ’25

1Q4 ’25

1Q1 ’26

1Q2 ’26

0Q3 ’26

Counts the managers on this site whose 13F for that quarter includes Westlake Chemical.

Who holds it

Each manager’s latest 13F, sorted by how much of their portfolio it is. Changes are against their previous quarter.

Managers holding Westlake Chemical

First Eagle Investment Management	0.0%$207k	$207k	Trimmed -60%	3 qtrs

Download the holders: CSV · JSON · Markdown

Directors buying and selling

Open-market trades by directors, officers and 10% holders over the last 12 months. How this works

From their Form 4 filings with the SEC. Grants, option exercises and shares sold to pay tax are left out.

Sort by

Insider purchases and sales of Westlake Chemical
		Bought or sold				Filing
11 Aug 2026	Chao AlbertExecutive Chairman	▼ Sold	31,384	$80.42	$2.5m	Form 4
11 Aug 2026	Chao AlbertExecutive Chairman	▼ Sold	7,489	$79.70	$597k	Form 4

About the company

Sector: Materials · Industrial Organic Chemicals
Incorporated in: Delaware
Financial year ends: 31 December
Shares outstanding: 128m at 29 Jul 2026
SEC filings: Annual reports and other filings on EDGAR

Revenue and profit

$3.8bn2013

$4.5bn2015

$8.0bn2017

$8.1bn2019

$12bn2021

$13bn2023

$11bn2025

Westlake Chemical revenue and net income by year
Year	Revenue	Net income
2025	$11bn	−$1.5bn
2024	$12bn	$602m
2023	$13bn	$479m
2022	$16bn	$2.2bn
2021	$12bn	$2.0bn
2020	$7.5bn	$330m
2019	$8.1bn	$421m
2018	$8.6bn	$996m
2017	$8.0bn	$1.3bn
2016	$5.1bn	$399m
2015	$4.5bn	$646m
2014	$4.4bn	$679m
2013	$3.8bn	$610m

From the company’s XBRL financial statements filed with the SEC, for each financial year. Gaps mean the company didn’t report that figure in a standard form.