Security key
960413102
- Security type / class
- Equity / COM
- Total 13F shares
- 34,753,905
- Total 13F value
- $3,085,828,789
- Share change
- +1,303,289
- Put/Call ratio
- 86%
- SEC-reported price per share
- $88.79
- Number of holders
- 231
- Value change
- +$119,243,678
- Number of buys
- 126
- Number of sells
- 92
Open additional details 1 more signal available
Report period
Q1 2021
Institutions
231
Top holders
10
WLK full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2021
Previous quarter: Q4 2020
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
Capital World Investors
Disclosed value leader
Capital World Investors
Comparable rows
0/15
Latest evidence
31 Dec 2020
13F
Highest disclosed value: $450,484,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
Capital World Investors has the largest disclosed position value at $450.48M.
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 Capital World Investors's linked filing trail.
Disclosed position value
Top 5
Capital World Investors
$450.48M
VANGUARD GROUP INC
$310.41M
PRICE T ROWE ASSOCIATES INC /MD/
$296.06M
VICTORY CAPITAL MANAGEMENT INC
$250.22M
ALLIANCEBERNSTEIN L.P.
$198.68M
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 |
|---|---|---|---|---|---|
| Capital World Investors |
13F
Company
|
—
class O/S missing
|
$450,484,000
5,520,640 shares
|
— | 31 Dec 2020 |
| VANGUARD GROUP INC |
13F
Company
|
—
class O/S missing
|
$310,407,000
3,804,016 shares
|
— | 31 Dec 2020 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
Company
|
—
class O/S missing
|
$296,064,000
3,628,235 shares
|
— | 31 Dec 2020 |
| VICTORY CAPITAL MANAGEMENT INC |
13F
Company
|
—
class O/S missing
|
$250,222,000
3,066,445 shares
|
— | 31 Dec 2020 |
| ALLIANCEBERNSTEIN L.P. |
13F
Company
|
—
class O/S missing
|
$198,683,000
2,434,842 shares
|
— | 31 Dec 2020 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
class O/S missing
|
$191,338,000
2,344,834 shares
|
— | 31 Dec 2020 |
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 Q1 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
231
Shares
34,753,905
Rows available
231
| 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 Q1 2021 vs Q4 2020 Across Filers
Q4 2020 holders
217
Q1 2021 holders
231
Holder diff
14
| Investor | Q4 2020 Shares | Q1 2021 Shares | Share Diff | Share Chg % | Q4 2020 value | Q1 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend