WESTLAKE CORPORATION

$WLK
13F holders
320
Net 13F flow · Q
Insider buys · 90d
0
Insider net · 90d
Congress · 90d
0
Convergence

Institutional holders

Top 10 of 320 · Source: 13F-HR
01
Cooper/Haims Advisors, LLC
02
Edgar Lomax CO
03
State Street
04
Axa S.a.
05
Atlantic Edge Private Wealth Management, LLC
06
Bahl & Gaynor Inc.
07
Pier 88 Investment Partners LLC
08
Marshall & Sullivan Inc.
09
Strategic Planning Group, LLC
10
Nomura Asset Management Co. Ltd.

Each fund name links to that filer's expert page. Share counts and per-fund weights are pending the 13F ingest fix (portfolios_expertholding.units is currently mis-populated — see the same caveat on the fund detail page's holdings table). Quarter-over-quarter delta ships with the metrics pipeline.

See all 320 13F holders · Pro →

Smart Money · top-200 alpha cohort

8 holders · Q1 2026

$WLK is held by 8 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 0.42%, with an average of 0.08% of portfolio. Largest holder: Erste Asset Management GmbH at 0.42%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Insider activity · last 90 days

No insider activity

No Form 4 filings on record for $WLK in the recent window.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $WLK in the recent window.

Convergence · Pattern Engine ships in v1.1

30-day window
In development

Convergence detection for $WLK lands with the Pattern Engine.

Once the Pattern Engine ships, this section will surface every active convergence event involving $WLK — the institutional managers and Congress members on the same name, the 30-day window, and the combined position size.

Source data: SEC EDGAR · 13F-HR · Form 4 · CapitolTrades · Last refreshed 15:01 UTC.