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Westlake (WLK)
NYSE
$70.80-$0.02 (-0.02%)
Price as of Sep 11, 2026 7:30 PM EDT- $9.0BMarket Cap
- -17.48%1-Year Change
- Specialty ChemicalsIndustry
Westlake (WLK)
$70.80-$0.02 (-0.02%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD GROUP INC | 3.06% | 3.9M | +477,698 (+12.19%) | Dec 31, 2025 |
BLACKROCK FUNDING, INC. /DE | 2.85% | 3.7M | +160,039 (+4.38%) | Dec 31, 2024 |
BLACKROCK INC. | 2.66% | 3.4M | -71,816 (-2.11%) | Jun 30, 2024 |
BLACKROCK, INC. | 2.57% | 3.3M | +215,075 (+6.53%) | Jun 30, 2026 |
CAPITAL WORLD INVESTORS | 2.22% | 2.8M | -1.4M (-48.15%) | Jun 30, 2026 |
PRICE T ROWE ASSOCIATES INC /MD/ | 1.72% | 2.2M | -200,781 (-9.10%) | Jun 30, 2026 |
ORBIS ALLAN GRAY LTD | 1.63% | 2.1M | -3.2M (-153.96%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 33.96% | 43.5M | 0 (0.00%) | Jun 30, 2026 |
DELAWARE GROUP INCOME FUNDS | 12.37% | 15.9M | 0 (0.00%) | Apr 30, 2026 |
DELAWARE GROUP ADVISER FUNDS | 11.77% | 15.1M | 0 (0.00%) | Apr 30, 2026 |
VANGUARD FIXED INCOME SECURITIES FUNDS | 11.71% | 15.0M | 0 (0.00%) | Apr 30, 2026 |
PUTNAM INCOME FUND | 6.14% | 7.9M | 0 (0.00%) | Jan 31, 2023 |
BAIRD FUNDS INC | 4.68% | 6.0M | 0 (0.00%) | Jun 30, 2026 |
SPDR SERIES TRUST | 4.27% | 5.5M | 0 (0.00%) | Jun 30, 2026 |
Current Ownership Distribution
- Mutual Funds1.8B (69.94%)
- Institutions714.9M (28.15%)
- Insiders48.7M (1.92%)
- Other0 (0.00%)
Insider Transactions
- 1.92% (48.7M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 1Number of InsiderSelling (last 12 months)
- $240.4MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Darby Tommy VP and CAO | Award | Aug 31, 2026 | $0.00 | 1,791 | $0.00 | 1,791 |
Sabat Carolyn Chao | Award | Aug 14, 2026 | $0.00 | 2,184 | $0.00 | 2,184 |
Lubel Kimberly S | Award | Aug 14, 2026 | $0.00 | 2,184 | $0.00 | 2,184 |
Chao David Tsung-Hung | Award | Aug 14, 2026 | $0.00 | 2,184 | $0.00 | 2,184 |
MCCOLLUM MARK A | Award | Aug 14, 2026 | $0.00 | 2,184 | $0.00 | 2,184 |
Graff Michael J | Award | Aug 14, 2026 | $0.00 | 2,184 | $0.00 | 2,184 |
CREGG ROGER A | Award | Aug 14, 2026 | $0.00 | 2,184 | $0.00 | 2,184 |
Patel Bhavesh V. | Award | Aug 14, 2026 | $0.00 | 2,184 | $0.00 | 2,184 |
NORTHCUTT R BRUCE | Award | Aug 14, 2026 | $0.00 | 2,184 | $0.00 | 2,184 |
Chao Albert Executive Chairman | Exempt | Aug 11, 2026 | $0.00 | 38,873 | $0.00 | 38,873 |
Chao Albert Executive Chairman | Exempt | Aug 11, 2026 | $2.4M | 38,873 | $61.87 | 681,753 |
Chao Albert Executive Chairman | Sell | Aug 11, 2026 | $596,873.30 | 7,489 | $79.70 | 674,264 |
Chao Albert Executive Chairman | Sell | Aug 11, 2026 | $2.5M | 31,384 | $80.42 | 642,880 |
Lubel Kimberly S | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 2,168 |
Chao Catherine T. | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 2,168 |
Graff Michael J | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 2,168 |
NORTHCUTT R BRUCE | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 2,168 |
Lubel Kimberly S | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 13,821 |
Sheets Jeffrey Wayne | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 2,168 |
Sabat Carolyn Chao | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 2,168 |
NORTHCUTT R BRUCE | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 23,351 |
Graff Michael J | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 23,310 |
Chao David Tsung-Hung | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 2,168 |
Sabat Carolyn Chao | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 5,748 |
Sheets Jeffrey Wayne | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 14,927 |
MCCOLLUM MARK A | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 2,168 |
Chao Catherine T. | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 7,748 |
MCCOLLUM MARK A | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 11,824 |
Chao David Tsung-Hung | Exempt | Aug 08, 2026 | $0.00 | 2,168 | $0.00 | 11,080 |
Baksht Jonathan SVP and CFO | Award | Jun 15, 2026 | $0.00 | 20,580 | $0.00 | 20,580 |