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Westlake Chemical Partners LP Stock: price and insider trades · United States
No insider purchase over the last 90 days. The latest, by Gilson Jean-Marc, was filed 29 Aug 2025.
Westlake Chemical Partners LP: what insiders have been doing
Westlake Chemical Partners LP, classified in the Chemicals & Materials sector, is a listed company. Its insiders report their share dealings to SEC (Form 4). 3 insiders have disclosed 5 filings since 22 October 2025.
None of the filings is a plain purchase or sale on the open market; they cover grants, option exercises and other movements. Such operations are usually part of compensation schedules, which makes them a weaker signal than an open-market trade.
No insider has bought Westlake Chemical Partners LP shares on the open market in the past twelve months. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 1 day. The legal deadline for a Form 4 is two business days after the transaction.
For context, the typical company on the same exchange (median of 2,023 companies) published 41 filings over the same period, against 5 filings here. The full history, which starts in 2016, counts 93 purchases against 6 sales. The 10-K for the year ended 31 December 2025 shows 1.17 bn USD of revenue and 48.7 m USD of net income.
For comparison within the same sector, see the insider buying recorded at Fuller H B Co and Gold.com, Inc. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Insider Decl.
157
Thresholds
n/a
Buy Volume
€34M
93 ops. · all time
Sell Volume
€1M
6 ops. · all time
Who traded when
BuySaleJean-Marc Gilson7 buys
James Chao3 sales
Since the insiders bought
- -2.1%Entry US$22.10 · Close at T+365 US$21.64
- -2.2%Entry US$22.50 · Close at T+365 US$22.00
- +7.6%Entry US$24.45 · Close at T+365 US$26.31
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.
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 1,982 of 26,248 companies
76.3
score / 100
Value88
Quality65
FCF yld27%
Earn yld6.6%
EV/EBITDA2.8x
ROE42%
Gross mgn30%
Net mgn4.2%
Debt/EBITDA1.0x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$21.05
Analyst consensus
1 analysts1.00/5
US$26.00Target US$26.00(+24%)US$26.00
Income statement
RevenueUS$1.2B
Gross profitUS$347.8M30% margin
EBITDAUS$409M35% margin
Net incomeUS$48.7M4.7% margin
Valuation
PER (trailing)12.8x
PER (forward)11.4x
P/Book1.5x
Beta0.50
Balance sheet & cash
Market capUS$741.9M
Total debtUS$399.7M
Free Cash FlowUS$201.7M
Debt / Equity52%
Profitability & ownership
ROE41.8%
ROA17.6%
% insiders44.8%
% institutions29.2%
Last declaration on 7 August 2026
Declarations157 total
5,005 sharesCommon UnitsSEC:0001193125-26-339176:0
5,005 sharesCommon UnitsSEC:0001193125-26-339181:0
5,005 sharesCommon UnitsSEC:0001193125-26-339179:0
2,502 shares@ US$21.350.0069% mcap100.0% of flowCommon UnitsSEC:0001193125-26-339181:1
5,005 shares@ US$21.350.014% mcap100.0% of flowCommon UnitsSEC:0001193125-26-339179:1
95.29 shares@ US$21.253.5% of flowCommon UnitsSEC:0002030037-25-000008:0
Canonical exit: 25 Nov 2025 (T+90)
82.51 shares@ US$24.750.8% of flowCommon UnitsSEC:0002030037-25-000006:1
Canonical exit: 26 May 2025 (T+90)
93.73 shares@ US$22.200.8% of flowCommon UnitsSEC:0002030037-25-000006:2
Canonical exit: 27 Aug 2025 (T+90)
4,700 shares@ US$21.8438.3% of flowCommon UnitsSEC:0002030037-25-000006:3
Canonical exit: 13 Nov 2025 (T+90)
1,250 shares@ US$21.8610.2% of flowCommon UnitsSEC:0002030037-25-000006:4
Canonical exit: 18 Nov 2025 (T+90)
1,250 shares@ US$22.0210.3% of flowCommon UnitsSEC:0002030037-25-000006:5
Canonical exit: 19 Nov 2025 (T+90)
320 shares@ US$22.950.0010% mcap13.3% of flowCommon UnitsSEC:0002030037-25-000005:0
Canonical exit: 26 Nov 2024 (T+90)
84.96 shares@ US$23.5653.8% of flowCommon UnitsSEC:0002030037-25-000006:0
Canonical exit: 25 Feb 2025 (T+90)
2,441 shares@ US$21.9624.1% of flowCommon UnitsSEC:0001974882-25-000004:1
4,882 shares@ US$21.9616.7% of flowCommon UnitsSEC:0001431554-25-000004:1
4,882 sharesCommon UnitsSEC:0001974882-25-000004:0
4,882 sharesCommon UnitsSEC:0001431554-25-000004:0
4,882 sharesCommon UnitsSEC:0001158643-25-000005:0
3,700 shares@ US$22.107.2% of flowCommon UnitsSEC:0000950170-25-079347:0
4,600 shares@ US$22.109.0% of flowCommon UnitsSEC:0000950170-25-078698:1
5,608 shares@ US$22.1711.0% of flowCommon UnitsSEC:0000950170-25-078698:0
1,000 shares@ US$22.8341.4% of flowCommon UnitsSEC:0000950170-24-102577:0
Canonical exit: 27 Nov 2024 (T+90)
1,000 shares@ US$22.958.9% of flowCommon UnitsSEC:0000950170-24-101479:1
Canonical exit: 25 Nov 2024 (T+90)
500 shares@ US$22.944.5% of flowCommon UnitsSEC:0000950170-24-101479:2
Canonical exit: 26 Nov 2024 (T+90)
500 shares@ US$22.84520.6% of flowCommon UnitsSEC:0000950170-24-101479:0
Canonical exit: 24 Nov 2024 (T+90)
25 of 157 declarations
About Westlake Chemical Partners LP
Westlake Chemical Partners LP (NYSE: WLKP) is a U.S.-listed master limited partnership domiciled in Delaware and headquartered in Houston, Texas, United States. The partnership was formed in March 2014 by Westlake Corporation to operate, acquire and develop ethylene production facilities and related assets. For international investors, WLKP sits firmly in the basic chemicals / materials space, with a focused asset base rather than a diversified chemical portfolio. Its appeal is primarily tied to industrial infrastructure cash flows, distribution visibility and the strategic importance of ethylene within the broader petrochemical value chain.
WLKP’s operating profile is intentionally narrow. The partnership’s economics are driven mainly by its ownership interest in Westlake Chemical OpCo LP. Recent company disclosures indicate that OpCo’s assets include three production facilities in Calvert City, Kentucky, and Lake Charles, Louisiana, where ethane and propane are processed into ethylene, plus an ethylene pipeline. In other words, WLKP is not a broad-based specialty chemicals producer; it is a partnership exposed to a core olefins platform that sits upstream of many everyday industrial and consumer applications. Ethylene is a key building block for plastics, packaging, pipe, and other derivative products, which gives the asset base structural relevance despite its relatively concentrated footprint.
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From a competitive standpoint, the most important strength is the relationship with Westlake Corporation, a globally diversified industrial company operating across North America, Europe and Asia. Westlake emphasizes low-cost manufacturing, vertical integration and operational reliability, all of which support the economics of its olefins chain. WLKP benefits from this sponsor relationship and from the fact that its assets are embedded in a larger industrial system. That said, the concentration of the business also means the investment case is more dependent on the operating performance of a limited number of facilities and on ethylene market conditions than would be the case for a more diversified chemical company.
Geographically, the partnership is highly concentrated in the United States, with operations centered in Kentucky and Louisiana. That U.S. focus simplifies the asset story but limits geographic diversification. The listing on the NYSE under the ticker WLKP makes the security part of the U.S. public equity market, and specifically a structure that many income-oriented investors monitor for recurring distributions.
Recent news flow has remained active. Westlake reported first-quarter 2026 results in May 2026 and announced a quarterly distribution of $0.4714 per unit, marking the 47th consecutive quarterly distribution. The company also filed its 2025 annual report in March 2026 and released full-year 2025 results earlier in the year. In addition, Westlake recently announced a leadership succession plan at the partnership level, naming Jean-Marc Gilson as President and CEO of Westlake Chemical Partners GP LLC. Overall, WLKP remains a specialized industrial income vehicle tied closely to Westlake Corporation and the economics of U.S. ethylene production.
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