Security key
960413102
- Security type / class
- Equity / COM
- Total 13F shares
- 56,343
- Total 13F value
- $4,113,039
- Share change
- +55,401
- SEC-reported price per share
- $73.00
- Number of holders
- 8
- Value change
- +$4,043,966
- Number of buys
- 3
- Number of sells
- 3
Report period
Q2 2026
Institutions
8
Top holders
8
WLK full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q1 2026
WESTLAKE CORP SEC filings
WESTLAKE CORP company facts
Broader feeds
Reporting periods
Holder history for CUSIP 960413102
Recent filing periods:
Ownership snapshot
Top reported holders of WLK - WESTLAKE CORP - COM (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Dorothy C. Jenkins
Disclosed value leader
Dorothy C. Jenkins
Comparable rows
0/15
Latest evidence
31 Mar 2026
3/4/5
13F
Highest disclosed value: $12,071,920,935
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
Dorothy C. Jenkins has the largest disclosed position value at $12.07B.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Dorothy C. Jenkins's linked filing trail.
Disclosed position value
Top 5
Dorothy C. Jenkins
$12.07B
Orbis Allan Gray Ltd
$618.39M
Capital World Investors
$491.93M
BlackRock, Inc.
$359.7M
PRICE T ROWE ASSOCIATES INC /MD/
$281.24M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Dorothy C. Jenkins |
3/4/5
Director, 10%+ Owner
|
—
class O/S missing
|
$12,071,920,935
93,479,332 shares
|
— | 12 Aug 2022 |
| Orbis Allan Gray Ltd |
13F
Company
|
—
class O/S missing
|
$618,388,890
5,293,519 shares
|
— | 31 Mar 2026 |
| Capital World Investors |
13F
Company
|
—
class O/S missing
|
$491,929,721
4,211,006 shares
|
— | 31 Mar 2026 |
| BlackRock, Inc. |
13F
Company
|
—
class O/S missing
|
$359,698,953
3,079,087 shares
|
— | 31 Mar 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
Company
|
—
class O/S missing
|
$281,240,000
2,407,457 shares
|
— | 31 Mar 2026 |
| BRANDES INVESTMENT PARTNERS, LP |
13F
Company
|
—
class O/S missing
|
$215,259,803
1,842,650 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
8
Shares
56,343
Rows available
8
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
336
Q2 2026 holders
8
Holder diff
-328
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend