WLK
Westlake Corporation · Basic Materials · Chemicals - Specialty
Momentum inputs (comparable managers):
holder breadth +7.7% ·
share flow +6.6% ·
net new positions +7.1%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 108 | +4 | 28.25M | $2.07B | +17 | −13 |
| Q1 2026 | 107 | +10 | 30.63M | $3.57B | +16 | −7 |
| Q4 2025 | 97 | -3 | 33.32M | $2.46B | +2 | −4 |
| Q3 2025 | 21 | +2 | 15.45M | $1.19B | +2 | −1 |
| Q2 2025 | 17 | 0 | 15.73M | $1.19B | +3 | −3 |
| Q1 2025 | 14 | -1 | 6.45M | $645.11M | — | −1 |
| Q4 2024 | 15 | 0 | 5.16M | $591.46M | +1 | −1 |
| Q3 2024 | 14 | +1 | 3.58M | $537.73M | +2 | −1 |
| Q2 2024 | 13 | — | 3.36M | $486.12M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Capital World Investors ✦ | 1.29M | -3.6% | $193.27M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 552.65K | +4.5% | $82.84M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 552.65K | +4.5% | $82.84M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Citadel Advisors ✦ | 524.35K | -9.3% | $78.81M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 5 | Citadel Advisors ✦ | 524.35K | -9.3% | $78.81M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 6 | Norges Bank ✦ (passive) | 402.27K | +1.8% | $60.46M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | Renaissance Technologies ✦ | 168.10K | +184.4% | $25.26M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | Point72 Asset Management ✦ | 155.70K | +118.9% | $23.40M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 9 | Two Sigma Investments ✦ | 141.61K | +442.8% | $21.28M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | AQR Capital Management ✦ | 90.25K | -36.8% | $13.54M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 90.25K | -36.8% | $13.54M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 90.25K | -36.8% | $13.54M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | Millennium Management ✦ | 86.76K | -34.1% | $13.04M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | D. E. Shaw & Co. ✦ | 62.36K | New | $9.37M | 0.0% | New | 1 | SEC ↗ |
| 15 | Marshall Wace ✦ | 42.43K | New | $6.38M | 0.0% | New | 1 | SEC ↗ |
| 16 | Marshall Wace ✦ | 42.43K | New | $6.38M | 0.0% | New | 1 | SEC ↗ |
| 17 | Wellington Management ✦ | 40.65K | -16.2% | $6.11M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | Wellington Management ✦ | 40.65K | -16.2% | $6.11M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | T. Rowe Price ✦ | 19.77K | +1.7% | $2.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | Gotham Asset Management ✦ | 6.68K | -62.4% | $1.00M | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| D. E. Shaw & Co. | $9.37M | 0.0% |
| Marshall Wace | $6.38M | 0.0% |
| Marshall Wace | $6.38M | 0.0% |
Exited
| Bridgewater Associates | $620,988 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 332 holders, 44.00M shares, $4.81B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer, Director · 7.49K sh · $596,873
Officer, Director · 31.38K sh · $2.52M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology