13F

Stock

Westlake Corp

WLK · held by 333 managers

Reported value

$4.82B

Holders

333

+86 new · −47 exited

Holders’ est. mark

$1.25B

Price effect on 180 books still in the name

Largest holder

$618.4M

Orbis Allan Gray Ltd

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Orbis Allan Gray Ltd5.29M$618.4M$188.1MAdded$294M
Capital World Investors4.21M$491.9M$93.1MAdded$331.4M
BlackRock, Inc.3.08M$359.7M$132MAdded$118.5M
BRANDES INVESTMENT PARTNERS, LP1.84M$215.3M$71.6MAdded$91.8M
WELLINGTON MANAGEMENT GROUP LLP1.79M$209.5M$76.9MCut−$102.6M
VANGUARD PORTFOLIO MANAGEMENT LLC1.77M$206.7MHeld
DIMENSIONAL FUND ADVISORS LP1.47M$171.3M$62.9MAdded$31.8M
VANGUARD CAPITAL MANAGEMENT LLC1.46M$170MHeld
GOLDMAN SACHS GROUP INC1.39M$162.8M$32.3MAdded$107M
State Street1.38M$161.3M$59.2MAdded$58M
Fidelity1.31M$153.3M$9.81MAdded$136.4M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC981.4K$114.6M$39.7MAdded$46.3M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.944K$110.3M$37.6MAdded$45.4M
UBS Group AG811.3K$94.8M$27.8MAdded$46.9M
Holocene Advisors, LP730K$85.3M$31.3MCut−$4.97M
Citadel715.6K$83.6M$8.72MAdded$68.6M
GEODE CAPITAL MANAGEMENT, LLC614.3K$71.8M$25.5MAdded$27.8M
Nuveen, LLC564.7K$66M$24.2MAdded$17.7M
MORGAN STANLEY486.5K$56.8M$20.9MAdded$667.5K
Erste Asset Management GmbH395K$45.8M$16.6MAdded$14.8M
SCHRODER INVESTMENT MANAGEMENT GROUP374.5K$43.4MNew
Balyasny Asset Management L.P.369.7K$43.2MNew
JACOBS LEVY EQUITY MANAGEMENT, INC349K$40.8M$15MCut−$8.65M
Woodline Partners LP337.1K$39.4M$14.5MCut−$7.07M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC311.8K$36.4M$12.7MAdded$14.4M
NEW YORK STATE COMMON RETIREMENT FUND309.6K$36.2M$13.3MAdded$13.3M
ProShare Advisors LLC295.8K$34.6M$12.7MAdded$2.37M
Allspring Global Investments Holdings, LLC285.4K$33.3M$12.1MCut−$4.3M
JANUS HENDERSON GROUP PLC269.8K$31.5M$11.6MAdded$6.78M
NORTHERN TRUST CORP269.1K$31.4M$11.5MAdded$11.6M
FEDERATED HERMES, INC.266.7K$31.2M$4.62MAdded$23.2M
Icahn Capital260.1K$30.4M$880.5KAdded$28.9M
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.244.3K$28.5M$10.1MAdded$11.1M
BANK OF AMERICA CORP /DE/237K$27.7M$7.91MAdded$14M
D. E. Shaw & Co., Inc.233.2K$27.2M$10MCut−$8.72M
Merewether Investment Management, LP219.9K$25.7M$9.43MCut−$3.01M
VANGUARD FIDUCIARY TRUST CO205.7K$24MHeld
DEPRINCE RACE & ZOLLO INC203.4K$23.8M$8.72MAdded$8.66M
Bank of New York Mellon Corp181.1K$21.2M$7.47MAdded$8.26M
Invesco Ltd.179.4K$21M$7.69MAdded$5.2M
Ceredex Value Advisors LLC177.9K$20.8M$7.63MAdded$3.36M
Man Group plc160.3K$18.7MNew
ROBOTTI ROBERT145K$16.9M$6.22MCut−$2.01M
CAPSTONE INVESTMENT ADVISORS, LLC135.8K$15.9M$133.7KAdded$15.6M
SPROTT INC.132.6K$15.5M$5.69MAdded$5.14M
Quantinno Capital Management LP121.4K$14.2M$4.99MAdded$5.58M
Recurrent Investment Advisors LLC112.8K$13.2M$3.24MAdded$7.58M
Yaupon Capital Management LP107K$12.5MNew
WELLS FARGO & COMPANY/MN106.7K$12.5M$3.94MAdded$5.67M
JANE STREET GROUP, LLC105.7K$12.3MNew
ROYAL BANK OF CANADA104K$12.1M$3.66MAdded$5.84M
FIRST TRUST ADVISORS LP102.3K$12M$4.39MAdded$1.12M
JPMORGAN CHASE & CO97.7K$11.3M$2.83MAdded$6.36M
Russell Investments Group, Ltd.89.4K$10.4M$3.83MCut−$1.27M
RHUMBLINE ADVISERS87.3K$10.2M$3.66MAdded$3.88M
MILLENNIUM MANAGEMENT LLC85K$9.93M$3.64MCut−$21.7M
Meiji Yasuda Asset Management Co Ltd.79.5K$9.28MNew
Swiss National Bank75.9K$8.87M$3.25MAdded$3.25M
PDT Partners, LLC75.8K$8.85M$2.79MAdded$4.05M
PRINCIPAL FINANCIAL GROUP INC74.5K$8.7M$3.08MAdded$3.4M
Thomist Capital Management, LP73K$8.53M$3.07MAdded$163.2K
Cerity Partners LLC72.7K$8.49M$3.12MCut−$907K
AGMAN CAPITAL LLC72.3K$8.44M$3.1MAdded$3.1M
MACKENZIE FINANCIAL CORP72K$8.41M$834.7KAdded$6.93M
CAPITAL INTERNATIONAL SARL63.6K$7.43MNew
Lloyd Harbor Capital Management, LLC62K$7.24MNew
Rokos Capital Management LLP60.8K$7.1MNew
Walleye Capital LLC59.8K$6.99M$2.04MAdded$3.46M
CITIGROUP INC54.6K$6.37M$1.17MAdded$4.35M
Legal & General Group Plc50.7K$5.93M$2.18MAdded$1.69M
Albar Capital Partners LLP48.8K$5.7MNew
Tidal Investments LLC47.8K$5.55MNew
VICTORY CAPITAL MANAGEMENT INC45.6K$5.32M$1.95MCut−$77M
Trek Financial, LLC45.3K$5.29MNew
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM44.5K$5.19M$1.55MAdded$2.52M
OCCUDO QUANTITATIVE STRATEGIES LP44.4K$5.12M$1.04MAdded$3.26M
ALLIANCEBERNSTEIN L.P.67.3K$4.98M$0Cut−$83.8K
Engineers Gate Manager LP42.5K$4.96M$1.82MCut−$16.4M
Retirement Systems of Alabama40.9K$4.78M$1.72MAdded$1.82M
BANK OF MONTREAL /CAN/39K$4.56M$1.15MAdded$2.57M
Squarepoint Ops LLC38.5K$4.5MNew
CAPITAL INTERNATIONAL LTD /CA/37.3K$4.36MNew
Twin Tree Management, LP36K$4.2MNew
Corient Private Wealth LLC35K$4.06M$1.47MAdded$305.2K
Gotham Asset Management, LLC34.6K$4.04M$394.5KAdded$3.36M
VANGUARD ASSET MANAGEMENT, Ltd33.4K$3.9MHeld
MANUFACTURERS LIFE INSURANCE COMPANY, THE33.3K$3.89M$1.43MAdded$1.42M
Boston Partners31.7K$3.7MNew
Occam Crest Management LP29.3K$3.42MNew
AMERIPRISE FINANCIAL INC28.5K$3.33M$1.22MCut−$303.9K
ENVESTNET ASSET MANAGEMENT INC28K$3.28M$1.2MAdded$1.22M
STATE OF WISCONSIN INVESTMENT BOARD25.3K$2.95M$1.08MAdded$1.05M
California Public Employees Retirement System25K$2.92M$1.07MCut−$536.9K
STIFEL FINANCIAL CORP24.9K$2.91M$811.3KAdded$1.51M
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM24.1K$2.82M$1.03MAdded$1.03M
Quantbot Technologies LP23.9K$2.8M$1.03MCut−$132.3K
State of New Jersey Common Pension Fund D23.7K$2.76MNew
AMG National Trust Bank23K$2.69M$988KAdded$966.6K
Capital International, Inc./CA/21.4K$2.5MNew
Ameritas Investment Partners, Inc.20.5K$2.39M$861.1KAdded$907.5K
AMERICAN CENTURY COMPANIES INC20K$2.34M$784.7KAdded$985.5K
Zurcher Kantonalbank (Zurich Cantonalbank)19.2K$2.24M$573.2KAdded$1.25M
Dana Investment Advisors, Inc.19K$2.22M$813.2KAdded$798.5K
WORLDQUANT MILLENNIUM ADVISORS LLC18.4K$2.15MNew
Susquehanna Portfolio Strategies, LLC18.4K$2.15MNew
Edgestream Partners, L.P.17.7K$2.07M$304.2KAdded$1.54M
MetLife Investment Management, LLC16.4K$1.92M$698.7KAdded$711.7K
FIFTH THIRD BANCORP16K$1.87M$24.1KAdded$1.83M
STOREBRAND ASSET MANAGEMENT AS15.4K$1.8M$660.6KAdded$660.6K
SUSQUEHANNA INTERNATIONAL GROUP, LLP15K$1.75M$643.2KCut−$7.66K
BARCLAYS PLC14.5K$1.69M$619.9KCut−$3.24M
SummitTX Capital, L.P.14.3K$1.67MNew
Vanguard Global Advisers, LLC13.9K$1.63MHeld
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.13.9K$1.62MNew
LPL Financial LLC13.1K$1.53M$542.4KAdded$590.4K
State of Tennessee, Department of Treasury12.9K$1.51M$485.5KAdded$485.5K
XTX Topco Ltd12.9K$1.5MNew
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC12.8K$1.49M$548KAdded$466.7K
SEI INVESTMENTS CO12.8K$1.49M$547.5KCut−$611.4K
Summit Trail Advisors, LLC12.5K$1.46M$537KAdded$312.5K
Polymer Capital Management (US) LLC12.5K$1.46M$278.7KAdded$982K
Universal- Beteiligungs- und Servicegesellschaft mbH12.5K$1.46M$393.7KAdded$778.9K
Creative Planning12K$1.4M$329.5KAdded$829.1K
Mitsubishi UFJ Asset Management Co., Ltd.11.3K$1.32M$425.8KAdded$575.6K
ARIZONA STATE RETIREMENT SYSTEM10.6K$1.24M$453.7KAdded$437.8K
YOUSIF CAPITAL MANAGEMENT, LLC10.5K$1.23M$346KAdded$301K
Schonfeld Strategic Advisors LLC10.2K$1.19M$257.8KAdded$744.9K
Walnut Level Capital LLC10K$1.17M$428.8KAdded$325K
Vanguard Investments Australia, Ltd.9.93K$1.16MHeld
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO9.72K$1.14M$417KAdded$392.4K
Louisiana State Employees Retirement System9.7K$1.13M$394.5KAdded$452.9K
Vanguard Personalized Indexing Management, LLC9.46K$1.11M$405.8KAdded$384.2K
KLP KAPITALFORVALTNING AS8.5K$993K$351.6KAdded$386.7K
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS8.36K$976.1K$357.9KAdded$359K
WINTON GROUP Ltd8.23K$961.3KNew
Aster Capital Management (DIFC) Ltd9.43K$943.1K$21.4KAdded$882.5K
TWIN FOCUS CAPITAL PARTNERS, LLC8K$934.6KNew
STATE OF MICHIGAN RETIREMENT SYSTEM8K$934.6K$338.8KAdded$350.4K
Total Wealth Planning & Management, Inc.7.71K$900.3K$126.7KAdded$681.8K
CAPITAL GROUP INVESTMENT MANAGEMENT PTE. LTD.7.69K$898.7KNew
Eurizon Capital SGR S.p.A.7.52K$878.2KNew
NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC7.47K$872.9K$320KAdded$321.1K
Dynamic Technology Lab Private Ltd7.35K$858.9KNew
GATEWAY INVESTMENT ADVISERS LLC7.15K$834.9KNew
First Eagle Investment Management, LLC7.12K$831.5K$2.27KAdded$827.6K
OREGON PUBLIC EMPLOYEES RETIREMENT FUND6.87K$802.3K$285.9KAdded$309.3K
Inspire Investing, LLC6.74K$787.4K$188.8KAdded$461.7K
BNP PARIBAS FINANCIAL MARKETS6.69K$781.5K$286.9KCut−$6.04M
Pettee Investors, Inc.6.71K$773.6K$277.4KAdded$277.4K
ALLSTATE CORP6.58K$768.1KNew
Concentric Capital Strategies, LP6.52K$761.3KNew
RiverFront Investment Group, LLC6.5K$759K$278.6KAdded$278.6K
Pictet Asset Management Holding SA6.06K$707.8K$258.4KAdded$262.3K
MERCER GLOBAL ADVISORS INC /ADV5.72K$667.8K$168.2KAdded$377.7K
Brooklyn Investment Group5.71K$666.5KNew
Police & Firemen's Retirement System of New Jersey5.68K$664K$243.7KAdded$243.7K
Advisors Asset Management, Inc.5.65K$659.7K$242.1KAdded$212.6K
Storgate, LLC5.51K$643.7K$230.7KAdded$245.9K
Unison Advisors LLC5.25K$613K$223.6KAdded$227.4K
Caprock Group, LLC5.17K$604.1KNew
Pathstone Holdings, LLC4.96K$579.4K$199.3KAdded$235.7K
Hartree Partners, LP4.3K$502.3KNew
GUGGENHEIM CAPITAL LLC4.12K$481.2K$176.6KAdded$172.6K
XPONANCE LLC3.99K$465.9K$133KAdded$236.6K
CIBC Asset Management Inc3.98K$464.6K$170.5KAdded$170.5K
Cetera Investment Advisers3.92K$458K$135.2KAdded$224.8K
Pacer Advisors, Inc.3.84K$449.1K$164.8KAdded$154.2K
Marnell Management LLC3.8K$444.1K$163KCut−$420.9K
Atria Investments, Inc3.79K$442.3K$162.3KAdded$141.2K
EVERGREEN CAPITAL MANAGEMENT LLC3.65K$426.5KNew
GAMCO INVESTORS, INC. ET AL3.49K$407.8K$149.7KAdded$116.4K
Sanctuary Advisors, LLC3.27K$382.2K$140.3KAdded$127.8K
Havemeyer Place LP3.25K$379.7KNew
TWINBEECH CAPITAL LP2.95K$344.6KNew
RAYMOND JAMES FINANCIAL INC2.93K$342.4K$125.7KAdded$111.6K
Odyssean, LLC2.9K$339.1K$124.5KAdded$124.5K
Integrated Wealth Concepts LLC2.86K$333.6KNew
iSAM Funds (UK) Ltd2.83K$331.2K$121.3KAdded$122.1K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC2.59K$309KNew
Archer Investment Corp2.49K$291.2KNew
VOYA INVESTMENT MANAGEMENT LLC2.44K$284.6KNew
PRICE T ROWE ASSOCIATES INC /MD/2.41M$281.2K$94.7KAdded$117.9K
SECURIAN ASSET MANAGEMENT, INC2.4K$280.7K$103KAdded$103K
MFA WEALTH ADVISORS, LLC2.38K$278.3KNew
DEUTSCHE BANK AG\2.37K$276.9K$46.5KAdded$196.7K
HighTower Advisors, LLC2.31K$269.3KNew
Swiss Life Asset Management Ltd2.25K$263.2KNew
CWM, LLC2.25K$262.7K$40.4KAdded$262.7K
PRUDENTIAL FINANCIAL INC2.23K$260.3KNew
BROWN ADVISORY INC2.23K$260.1KNew
CANADA PENSION PLAN INVESTMENT BOARD2.21K$258.2K$94.8KCut−$328.2K
US BANCORP \DE\2.17K$253.5K$86.2KAdded$104.9K
Empowered Funds, LLC2.16K$252.6KNew
Sivia Capital Partners, LLC2.1K$245.2KNew
EAGLE GLOBAL ADVISORS LLC2.07K$241.3KNew
Callan Family Office, LLC2.02K$235.6KNew
Verition Fund Management LLC2K$233.6K$85.8KCut−$1.69M
Amundi2K$233.3KNew
Federation des caisses Desjardins du Quebec1.99K$232.5K$85.3KAdded$43.3K
Cercano Management LLC1.98K$231.1KNew
Maryland State Retirement & Pension System1.92K$223.7KNew
Greenland Capital Management LP1.81K$211.7KNew
Utah Retirement Systems1.8K$210.3KNew
Laird Norton Wetherby Trust Company, LLC1.75K$204.7KNew
Virtus Investment Advisers, LLC1.74K$202.8K$74.4KAdded$41.2K
OPPENHEIMER & CO INC1.74K$202.7KNew
Allworth Financial LP1.7K$198.7K$61.7KAdded$92.4K
MAI Capital Management1.63K$190.5K$56.4KAdded$93.2K
PNC Financial Services Group, Inc.1.52K$177.8K$57.2KAdded$79.1K
Kimelman & Baird, LLC1.5K$175.2K$64.3KAdded$64.3K
TD Waterhouse Canada Inc.1.38K$160.1K$1.7KAdded$157.1K
Tower Research Capital LLC (TRC)1.36K$158.4K$32.8KAdded$101.9K
Transamerica Financial Advisors, LLC1.3K$151.9K$34.6KAdded$92.4K
SIGNATUREFD, LLC1.15K$134.1K$6.09KAdded$123.6K
Sterling Capital Management LLC1.12K$131.1K$48.1KCut−$15.1K
PICKERING ENERGY PARTNERS LP1K$116.8KNew
Compagnie Lombard Odier SCmA860$100.5KNew
Rockefeller Capital Management L.P.857$100.1K$36.8KAdded$29.5K
Parallel Advisors, LLC830$97K$15.2KAdded$70.7K
STRS OHIO799$93.3K$34.3KAdded$34.2K
NOMURA ASSET MANAGEMENT CO LTD670$78.3K$28.7KAdded$12K
EXCHANGE TRADED CONCEPTS, LLC536$62.6KNew
BNP PARIBAS ASSET MANAGEMENT Holding S.A.535$62.5K$39.5KAdded$62.5K
GAMMA Investing LLC531$62K$19.9KAdded$27.7K
Walleye Trading LLC514$60KNew
Destiny Wealth Partners, LLC510$59.6KNew
QUADRANT CAPITAL GROUP LLC382$44.6K$16.4KAdded$11.6K
JONES FINANCIAL COMPANIES LLLP361$40.8K$12KAdded$18.2K
UMB Bank, n.a.312$36.4K$13.4KAdded$7.39K
Farther Finance Advisors, LLC289$33.7K$12.3KAdded$11.5K
MassMutual Private Wealth & Trust, FSB274$32K$11.7KAdded$11.7K
Deseret Mutual Benefit Administrators248$29K$5.7KAdded$19.1K
Quent Capital, LLC238$27.8K$9.95KAdded$10.7K
EverSource Wealth Advisors, LLC234$27.3K$7.29KAdded$14.8K
Arax Advisory Partners232$27.1K$857Added$25.6K
Smartleaf Asset Management LLC213$24.7K$4.15KAdded$17.1K
NBC SECURITIES, INC.200$23.4K$8.58KAdded$8.28K
OSAIC HOLDINGS, INC.190$22.2K$8.15KAdded$1.49K
Advisory Services Network, LLC187$21.8KNew
NISA INVESTMENT ADVISORS, LLC185$21.6K$2.14KAdded$17.9K
NATIONAL BANK OF CANADA /FI/182$21.3K$7.8KAdded$927
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY178.2K$20.8K$7.09KAdded$8.59K
Root Financial Partners, LLC172$20.1K$1.03KAdded$18.3K
Spire Wealth Management172$20.1K$7.38KCut−$2.53K
Cullen/Frost Bankers, Inc.165$19.3K$7.01KAdded$7.13K
LOS ANGELES CAPITAL MANAGEMENT LLC157$18.3K$7.62KAdded$7.62K
HUNTINGTON NATIONAL BANK119$13.9K$5.1KAdded$5.1K
Versant Capital Management, Inc101$11.8K$772Added$10.5K
Ancora Advisors LLC97$11.3K$4.16KAdded$4.16K
PRIVATE TRUST CO NA90$10.5K$3.86KAdded$3.86K

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.