Westlake Chemical Corporation (WLK)
Basic Materials
Specialty Chemicals
70.50 $
-1.7%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Westlake Chemical Corporation (WLK)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 25.8% of the shares are freely tradable; institutional investors hold 35.2%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
35.2%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
74.3%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
25.8%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
16.0%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
128Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Orbis Allan Gray Ltd | 4.13 | 5,293,519 | +20.7 | 03/31/2026 |
| Capital World Investors | 3.29 | 4,211,006 | +93.9 | 03/31/2026 |
| BlackRock Inc | 2.40 | 3,079,087 | -5.6 | 03/31/2026 |
| T. Rowe Price Associates, Inc. | 1.88 | 2,407,457 | +9.0 | 03/31/2026 |
| Brandes Investment Partners & Co | 1.44 | 1,842,650 | +10.3 | 03/31/2026 |
| Wellington Management Company LLP | 1.40 | 1,793,517 | -57.5 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 1.38 | 1,769,808 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 1.14 | 1,466,020 | -22.3 | 03/31/2026 |
| Vanguard Capital Management, LLC | 1.14 | 1,455,594 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| American Funds Income Fd of Amer A | 1.92 | 2,457,130 | +0.0 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.