WESTLAKE CORP

PublicCIK: 1262823
WLKNYSE
Location

HOUSTON, TX

13F Filings

Institutional Holders

WESTLAKE CORPWLK— Latest position per institution from SEC 13F filings

15

Institutional holders

37.17M

Total shares held

2.74B

Estimated value

1.86M

Avg. position size

1

VANGUARD GROUP INC

CIK 102909

Shares

3.92M

Value

289.65M

Filed

Dec 31, 2025

2

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

3.41M

Value

493.55M

Filed

Jun 30, 2024

3

BLACKROCK, INC.

CIK 2012383

Shares

3.29M

Value

240.47M

Filed

Jun 30, 2026

4

CAPITAL WORLD INVESTORS

CIK 1422849

Shares

2.84M

Value

207.49M

Filed

Jun 30, 2026

5

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

CIK 1081019

Shares

2.69M

Value

36.90K

Filed

Jun 30, 2026

6

PRICE T ROWE ASSOCIATES INC /MD/

CIK 80255

Shares

2.21M

Value

161.09K

Filed

Jun 30, 2026

7

ORBIS ALLAN GRAY LTD

CIK 1663865

Shares

2.08M

Value

152.16M

Filed

Jun 30, 2026

8

DIMENSIONAL FUND ADVISORS LP

CIK 354204

Shares

2.05M

Value

149.78M

Filed

Jun 30, 2026

9

VANGUARD PORTFOLIO MANAGEMENT LLC

CIK 2100121

Shares

1.75M

Value

127.94M

Filed

Jun 30, 2026

10

BRANDES INVESTMENT PARTNERS, LP

CIK 1015079

Shares

1.57M

Value

114.83M

Filed

Jun 30, 2026

11

AQR CAPITAL MANAGEMENT LLC

CIK 1167557

Shares

1.57M

Value

114.64M

Filed

Jun 30, 2026

12

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

1.46M

Value

106.89M

Filed

Jun 30, 2026

13

STATE STREET CORP

CIK 93751

Shares

1.45M

Value

106.10M

Filed

Jun 30, 2026

14

GOLDMAN SACHS GROUP INC

CIK 886982

Shares

1.28M

Value

93.50M

Filed

Jun 30, 2026

15

CITADEL ADVISORS LLC

CIK 1423053

Shares

1.15M

Value

84.06M

Filed

Jun 30, 2026

16

MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.

CIK 1705339

Shares

1.02M

Value

74.71M

Filed

Jun 30, 2026

17

NUVEEN ASSET MANAGEMENT, LLC

CIK 1521019

Shares

983.09K

Value

112.71M

Filed

Dec 31, 2024

18

SOROBAN CAPITAL PARTNERS LP

CIK 1517857

Shares

871.48K

Value

121.97M

Filed

Dec 31, 2023

19

UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC

CIK 861177

Shares

817.21K

Value

59.66M

Filed

Jun 30, 2026

20

HOLOCENE ADVISORS, LP

CIK 1700574

Shares

730.03K

Value

85.28M

Filed

Mar 31, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.