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Data sourced from SEC EDGAR 13F filings. Updated quarterly.

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Westlake Corporation (WLK)

Highly Crowded

Held by 323 of 5,944 reporting institutions (95th percentile) — extremely crowded.

Data as of Q1 2026

Institutional Ownership

34.46%

QoQ Change

N/A

Total Value

$4.8T

Shares Outstanding

128.1M

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Institutional Holders

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Institutional Trends (8 Quarters)

Crowding AnalysisHighly Crowded

Holders323of 5,944

Avg: 68

Uncrowded95th percentileCrowded