Security key
960413102
- Security type / class
- Equity / COM
- Total 13F shares
- 39,192,909
- Total 13F value
- $4,175,042,471
- Share change
- -1,371,012
- Put/Call ratio
- 51%
- SEC-reported price per share
- $106.53
- Number of holders
- 280
- Value change
- -$70,389,107
- Number of buys
- 151
- Number of sells
- 119
Open additional details 1 more signal available
Report period
Q4 2017
Institutions
280
Top holders
10
WLK full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2018
Previous quarter: Q3 2017
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
VANGUARD GROUP INC
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
0/15
Latest evidence
30 Sep 2017
13F
Highest disclosed value: $359,333,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD GROUP INC has the largest disclosed position value at $359.33M.
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 VANGUARD GROUP INC's linked filing trail.
Disclosed position value
Top 5
VANGUARD GROUP INC
$359.33M
FMR LLC
$241.98M
BlackRock Finance, Inc.
$120.23M
GOLDMAN SACHS GROUP INC
$117.94M
Soroban Capital Partners LP
$116.2M
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 |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
Company
|
—
class O/S missing
|
$359,333,000
4,324,617 shares
|
— | 30 Sep 2017 |
| FMR LLC |
13F
Company
|
—
class O/S missing
|
$241,981,000
2,912,273 shares
|
— | 30 Sep 2017 |
| BlackRock Finance, Inc. |
13F
Company
|
—
class O/S missing
|
$120,228,000
1,446,966 shares
|
— | 30 Sep 2017 |
| GOLDMAN SACHS GROUP INC |
13F
Company
|
—
class O/S missing
|
$117,945,000
1,419,480 shares
|
— | 30 Sep 2017 |
| Soroban Capital Partners LP |
13F
Company
|
—
class O/S missing
|
$116,196,000
1,398,431 shares
|
— | 30 Sep 2017 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$111,593,000
1,343,043 shares
|
— | 30 Sep 2017 |
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 Q4 2017
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
280
Shares
39,192,909
Rows available
280
| 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 Q4 2017 vs Q3 2017 Across Filers
Q3 2017 holders
237
Q4 2017 holders
280
Holder diff
43
| Investor | Q3 2017 Shares | Q4 2017 Shares | Share Diff | Share Chg % | Q3 2017 value | Q4 2017 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend