8 institutions reported holding $4.1M of WESTLAKE CORPORATION (WLK) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($4.0M), GAMMA Investing LLC ($36,062), Versant Capital Management, Inc ($20,732), MassMutual Private Wealth & Trust, FSB ($16,133), CoreCap Advisors, LLC ($1,752). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | $4.0M | 55,289 | New |
| 2 | GAMMA Investing LLC | $36,062 | 494 | Trimmed |
| 3 | Versant Capital Management, Inc | $20,732 | 284 | Added |
| 4 | MassMutual Private Wealth & Trust, FSB | $16,133 | 221 | Trimmed |
| 5 | CoreCap Advisors, LLC | $1,752 | 24 | Hold |
| 6 | Arlington Trust Co LLC | $292 | 4 | Hold |
| 7 | 3 FACTOR INDEXING, LLC | $73 | 1 | Hold |
| 8 | ELEVATION WEALTH PARTNERS, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30