Westlake Corporation WLK
68.96 USD -2.21 (-3.10%)
Nov 3, 2026, 3:20 PM EST
68.71 Day range 71.19
56.38 52-week range 123.39
- YTD
- -6.73%
- 1 year
- +1.00%
Held by funds
152 US ETFs and mutual funds hold WLK · largest positions
Ownership
Held by insiders 74.51%
Held by institutions 31.73%
Float held by institutions 124.47%
Institutions 477
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Blackrock Inc. | 2.58% | 3,294,162 | 234.25M | Jun 29, 2026 |
| Capital World Investors | 2.22% | 2,842,348 | 202.12M | Jun 29, 2026 |
| Price (T.Rowe) Associates Inc | 1.73% | 2,206,676 | 156.92M | Jun 29, 2026 |
| Orbis Allan Gray Ltd | 1.63% | 2,084,364 | 148.22M | Jun 29, 2026 |
| Dimensional Fund Advisors LP | 1.61% | 2,051,554 | 145.89M | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 1.37% | 1,752,627 | 124.63M | Jun 29, 2026 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| iShares Trust-iShares Core S&P Mid-Cap ETF | 0.93% | 1,182,325 | 84.08M | Sep 29, 2026 |
| T. Rowe Price Mid-Cap Value Fund, Inc. | 0.89% | 1,139,623 | 81.04M | Jun 29, 2026 |
| GLOBAL X FUNDS-Global X US Infrastructure Development ETF | 0.83% | 1,054,833 | 75.01M | Sep 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 0.80% | 1,018,691 | 72.44M | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 0.57% | 732,914 | 52.12M | Jun 29, 2026 |
| TR PRICE-Price (T.Rowe) Mid-Cap Value Equity Trust | 0.55% | 705,826 | 50.19M | Jun 29, 2026 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| BENDER MARK STEVEN | Chief Financial Officer | Conversion of Exercise of derivative security | May 11, 2026 | 35,895 |
| BUESINGER ROBERT F | Officer | Sale | Mar 26, 2026 | 34,482 |
| CHAO ALBERT Y | Officer and Director | Sale | Aug 10, 2026 | 642,880 |
| CHAO CATHERINE T | Director | Conversion of Exercise of derivative security | Aug 6, 2026 | 27,171 |
| CHAO DAVID TSUNG-HUNG | Director | Conversion of Exercise of derivative security | Aug 6, 2026 | 30,503 |
| CHAO JAMES Y | Chairman of the Board | Stock Award(Grant) | Feb 18, 2026 | 49,774 |