Westlake Chemical Partners LP (WLKP) Insider Trading

Last 12 months

No open-market buying or selling by insiders.

The last open-market buy by an executive or director was in Aug 2025.

Net open-market

0 buys · 0 sales

Under a 10b5-1 plan

—

no sales

Insiders who bought / sold

0 / 0

executives and directors

Last open-market buy

Aug 2025

Aug 27, 2025

Get an email when WLKP's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 27, 2025	Jean-Marc Gilson President and CEO	Bought	95	$21.25	$2k	0.8%	Form 4
Nov 27, 2024 – Aug 21, 2025	Jean-Marc Gilson President and CEO	Bought 6 parts	7,461	$21.93 average	$164k	176%	Form 4
May 29, 2025	James Chao Senior Chairman	SoldNo plan	3,700	$22.10	$82k	100%	Form 4
May 27, 2025 – May 28, 2025	James Chao Senior Chairman	SoldNo plan 2 parts	10,208	$22.14 average	$226k	73%	Form 4

Aug 27, 2025
Jean-Marc Gilson
President and CEO · bought 95 at $21.25
$2k
0.8% of stake
Nov 27, 2024 – Aug 21, 2025
Jean-Marc Gilson
President and CEO · bought 7,461 at avg $21.93
$164k
176% of stake
May 29, 2025No plan
James Chao
Senior Chairman · sold 3,700 at $22.10
$82k
100% of stake
May 27, 2025 – May 28, 2025No plan
James Chao
Senior Chairman · sold 10,208 at avg $22.14
$226k
73% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch WLKP, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Related stocks: Industrial Organic Chemicals

ALTOAlto Ingredients Inc.

SXTSensient Technologies Corporation

REXRex American Resources Corporation

GPREGreen Plains Inc.

AMTXAemetis Inc.

GEVOGevo Inc.

NEUNewMarket Corporation

IFFInternational Flavors & Fragrances Inc.

Spot a number that looks wrong? Check it in WLKP's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

2 of 2 free stocks used today

Keep analysing WLKP

Create a free account and get 14 days of Premium: every stock and every tool.

Unlimited stocksQuality, fair value and dividends for 10,000+ stocks
Stock screenerFilter on quality, valuation and dividend safety
Portfolio trackerReal return, dividend calendar and portfolio quality
Editable DCFChange the assumptions and watch fair value move
Compare side by sideUp to 10 stocks in one table
Unlimited alertsPrice, P/E, Quality Score and yield

No card. Moves to Free after, unless you upgrade.

Already have an account?

Or come back tomorrow. Stocks on your watchlist are always free to view.