Company Analysis

Westlake Chemical Partners Lp (WLKP)

NYSE: WLKP · Industrial Organic Chemicals · Houston, TX · filing with the SEC since 2014
Grade5.8
◀ Past 5.9● Present 4.9▶ Future 6.9
2 est.

Who owns Westlake Chemical Partners Lp

As filed with the SEC
Holders of 5% or more
0
No Schedule 13D or 13G naming this company is on file.
Directors and officers
7
report now, of 20 people on the record since 2014. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 0 named at left.
Holders of 5% or moreshare of the class, as filed
Energy Income Partners, LLC
SCHEDULE 13G · filed Feb 17, 2026 · Com Unit RP LP · reported falling below 5%, from 5.04% in Aug 14, 2025
under 5%
What WLKP reports owning in othersstakes of 5% or more, and other ties

2 subsidiaries in 1 country, from the list filed with the 10-K filed Mar 4, 2026.

Insider tradesForm 4
0sales
0purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
16171819202122232425
2025 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window
No one on the roster filed an open-market trade in the window.
SI Assistanton WLKP · research, not advice