Westlake ($WLK) Insider Trading & Smart Money Activity

Westlake Corporation · Specialty Chemicals · Latest filing Jun 15, 2026

Westlake Corporation ($WLK) has 1 insider trade and 1 13F position change on file. Insiders filed 1 Form 4 transaction in the last 12 months, none of them open-market purchases or sales.

Insider buyers (12 mo): 0
Insider sellers (12 mo): 0
Net insider $ (12 mo): $0
Congress trades (12 mo): 0
13F moves on file: 1
Analyst ratings on file: 0

WLK insider buying and selling by quarter

Quarter	Congress buys / sales	13F added / cut
Q1 2026	0 / 0	0 / 0
Q2 2026	0 / 0	1 / 0
Q3 2026	0 / 0	0 / 0
Q4 2026	0 / 0	0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All WLK insider, congress, 13F and analyst activity

Date	Source	Who	Action	Shares	Value / amount	ΔOwn	1W	1M	6M	Filing	Story
Jun 15, 2026	Insider	Jonathan BakshtSVP and CFO	Buy (Grant or award)	20.58K sh			-10.9%	-11.9%			Read
May 15, 2026	13F	Brandes Investment Partners	Added	+172.32K sh	$135.63M		0.0%	-0.7%			Read

1W / 1M / 6M = how WLK moved from the trade or filing date.

Insider trading in WLK: who is buying and selling

Insider	Role	Trades	Open-market net	Shares held	Last trade
Jonathan Baksht	SVP and CFO	1	—		Jun 15, 2026

Institutions moving WLK (13F)

Brandes Investment Partners1

Frequently asked questions

What is the latest insider trade in WLK?

Jonathan Baksht, SVP and CFO filed a buy (grant or award) of 20.58K sh on Jun 15, 2026.

Which institutions changed their WLK positions?

Recent 13F filers moving the stock include Brandes Investment Partners.

Other specialty chemicals stocks

All stocks Insider cluster buys Top insider purchases Congress 13F institutions

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

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