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Westlake (WLK) Institutional Ownership

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$80.73 -1.64 (-1.99%)
Closing price 10/9/2025 03:59 PM Eastern
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$81.24 +0.52 (+0.64%)
As of 08:26 AM Eastern
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Institutional Ownership Changes (13F Filings) for Westlake (NYSE:WLK)

Current
Institutional Ownership
Percentage
28.40%
Number of
Institutional Buyers
(last 12 months)
243
Total
Institutional Inflows
(last 12 months)
$1.62B
Number of
Institutional Sellers
(last 12 months)
145
Total
Institutional Outflows
(last 12 months)
$784.77M
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WLK Institutional Buying and Selling by Quarter

Westlake Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/9/2025Board of the Pension Protection Fund9,500$732K0.7%N/A0.007%
10/9/2025Voya Investment Management LLC2,772$214K0.0%-25.4%0.002%
9/26/2025Corient Private Wealth LLC8,965$681K0.0%-23.3%0.007%
9/4/2025Osaic Holdings Inc.3,417$262K0.0%+36.7%0.003%
8/27/2025Squarepoint Ops LLC94,483$7.17M0.0%-59.3%0.074%
8/16/2025FORA Capital LLC7,832$595K0.1%N/A0.006%
8/15/2025JCP Investment Management LLC53,000$4.02M2.3%N/A0.041%
8/15/2025CANADA LIFE ASSURANCE Co15,207$1.16M0.0%-41.6%0.012%
8/15/2025Tower Research Capital LLC TRC 2,492$189K0.0%+125.1%0.002%
8/15/2025Corient Private Wealth LLC17,926$1.36M0.0%+53.4%0.014%
8/15/2025Northeast Financial Consultants Inc24,800$1.88M0.1%N/A0.019%
8/15/2025State of Tennessee Department of Treasury5,013$381K0.0%-3.8%0.004%
8/15/2025Captrust Financial Advisors4,129$314K0.0%+28.0%0.003%
8/15/2025Vident Advisory LLC3,813$290K0.0%-61.3%0.003%
8/15/2025Royal London Asset Management Ltd.15,513$1.18M0.0%-2.9%0.012%
8/15/2025Man Group plc124,176$9.43M0.0%-11.9%0.097%
8/15/2025Lazard Asset Management LLC74,072$5.62M0.0%-33.6%0.058%
8/15/2025LMR Partners LLP3,861$293K0.0%N/A0.003%
8/15/2025Holocene Advisors LP158,155$12.01M0.0%+59.6%0.123%
8/15/2025Engineers Gate Manager LP351,011$26.65M0.3%+12,724.7%0.274%
8/15/2025BNP Paribas Financial Markets185,397$14.08M0.0%+603.4%0.145%
8/15/2025Brevan Howard Capital Management LP26,812$2.04M0.0%+65.4%0.021%
8/15/2025Balyasny Asset Management L.P.79,847$6.06M0.0%-84.7%0.062%
8/15/2025Bank of America Corp DE138,654$10.53M0.0%-37.4%0.108%
8/15/2025Ameriprise Financial Inc.99,534$7.56M0.0%-16.3%0.078%
8/15/2025AQR Capital Management LLC133,355$10.03M0.0%+598.4%0.104%
8/14/2025California State Teachers Retirement System2,087$158K0.0%-95.4%0.002%
8/14/2025Raymond James Financial Inc.5,298$402K0.0%-95.3%0.004%
8/14/2025Canada Pension Plan Investment Board49,344$3.75M0.0%+25.4%0.038%
8/14/2025Occudo Quantitative Strategies LP15,125$1.15M0.1%+300.5%0.012%
8/14/2025Quantinno Capital Management LP30,231$2.30M0.0%-76.3%0.024%
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.844,130$64.10M0.1%-1.1%0.658%
8/14/2025Ilex Capital Partners UK LLP273,564$20.77M0.7%-60.9%0.213%
8/14/2025Treasurer of the State of North Carolina15,608$1.19M0.0%+1.7%0.012%
8/14/2025The Manufacturers Life Insurance Company 28,134$2.14M0.0%+0.6%0.022%
8/14/2025Faithward Advisors LLC14,265$1.08M0.2%+7.8%0.011%
8/14/2025Squarepoint Ops LLC94,483$7.17M0.0%-59.3%0.074%
8/14/2025Sei Investments Co.22,746$1.73M0.0%+172.5%0.018%
8/14/2025Nebula Research & Development LLC7,169$544K0.0%N/A0.006%
8/14/2025NewEdge Advisors LLC745$57K0.0%+49.6%0.001%
8/14/2025Qube Research & Technologies Ltd134,571$10.22M0.0%+16.2%0.105%
8/14/2025State Street Corp1,392,227$105.71M0.0%-14.6%1.086%
8/14/2025CoreFirst Bank & Trust1,420$108K0.1%N/A0.001%
8/14/2025Transce3nd LLC2,498$190K0.1%-49.9%0.002%
8/14/2025California Public Employees Retirement System59,872$4.55M0.0%+1.8%0.047%
8/14/2025Cerity Partners LLC86,793$6.59M0.0%+15.8%0.068%
8/14/2025Federated Hermes Inc.1,307$99K0.0%-58.8%0.001%
8/13/2025Gamco Investors INC. ET AL11,566$878K0.0%N/A0.009%
8/13/2025Capula Management Ltd3,167$240K0.0%N/A0.002%
8/13/2025Amundi69,671$5.70M0.0%+37.2%0.054%
8/13/2025Marshall Wace LLP8,111$616K0.0%N/A0.006%
8/13/2025First Trust Advisors LP127,929$9.71M0.0%-23.2%0.100%
8/13/2025Invesco Ltd.124,564$9.46M0.0%-7.3%0.097%
8/13/20251832 Asset Management L.P.138,920$10.55M0.0%-9.6%0.108%
8/13/2025Thomist Capital Management LP71,600$5.45M1.7%+55.3%0.056%
8/13/2025Arrowstreet Capital Limited Partnership290,038$22.02M0.0%N/A0.226%
8/13/2025Brandes Investment Partners LP1,456,871$110.62M1.0%+246.0%1.136%
8/13/2025Robotti Robert182,840$13.77M2.6%+11.0%0.143%
8/13/2025OMERS ADMINISTRATION Corp11,380$864K0.0%N/A0.009%
8/13/2025New York State Common Retirement Fund306,426$23.27M0.0%+2,092.7%0.239%
8/13/2025Schroder Investment Management Group248,981$18.91M0.0%-0.2%0.194%
8/13/2025Norges Bank1,373,816$104.31M0.0%N/A1.071%
8/13/2025Quadrature Capital Ltd11,392$865K0.0%+395.7%0.009%
8/13/2025Hsbc Holdings PLC25,833$1.96M0.0%+142.8%0.020%
8/13/2025State Board of Administration of Florida Retirement System24,650$1.87M0.0%-11.9%0.019%
8/13/2025Quadrant Capital Group LLC7,943$603K0.0%+198.6%0.006%
8/12/2025XTX Topco Ltd9,377$712K0.0%-37.5%0.007%
8/12/2025Prudential Financial Inc.3,788$288K0.0%+18.2%0.003%
8/12/2025American Century Companies Inc.18,056$1.37M0.0%-20.3%0.014%
8/12/2025Rhumbline Advisers90,628$6.88M0.0%-9.8%0.071%
8/12/2025Legal & General Group Plc75,079$5.70M0.0%-48.2%0.059%
8/12/2025Neo Ivy Capital Management5,318$404K0.1%N/A0.004%
8/12/2025JPMorgan Chase & Co.167,595$12.73M0.0%+29.9%0.131%
8/12/2025Entropy Technologies LP7,655$581K0.0%+76.7%0.006%
8/12/2025Magnetar Financial LLC7,187$546K0.0%-73.7%0.006%
8/12/2025Catalyst Funds Management Pty Ltd3,905$297K0.1%+50.2%0.003%
8/11/2025Greenland Capital Management LP4,008$304K0.0%N/A0.003%
8/11/2025Nomura Asset Management Co. Ltd.896$68K0.0%-91.6%0.001%
8/11/2025Universal Beteiligungs und Servicegesellschaft mbH8,896$675K0.0%+215.9%0.007%
8/8/2025Itau Unibanco Holding S.A.1,000$76K0.0%+87.3%0.001%
8/8/2025Cetera Investment Advisers4,350$330K0.0%+43.6%0.003%
8/8/2025Creative Planning11,165$848K0.0%+39.2%0.009%
8/8/2025SG Americas Securities LLC54,505$4.14M0.0%-5.3%0.043%
8/8/2025Commonwealth of Pennsylvania Public School Empls Retrmt SYS8,567$650K0.0%+7.1%0.007%
8/8/2025Police & Firemen s Retirement System of New Jersey5,020$381K0.0%+4.1%0.004%
8/8/2025Geode Capital Management LLC574,231$43.61M0.0%-0.4%0.448%
8/8/2025PNC Financial Services Group Inc.1,433$109K0.0%+11.8%0.001%
8/8/2025KBC Group NV48,014$3.65M0.0%+79.9%0.037%
8/7/2025Allworth Financial LP1,409$107K0.0%+52.8%0.001%
8/7/2025ProShare Advisors LLC355,154$26.97M0.1%+36.4%0.277%
8/7/2025Mitsubishi UFJ Asset Management Co. Ltd.6,738$512K0.0%-77.3%0.005%
8/6/2025First Eagle Investment Management LLC6,885$523K0.0%+13.1%0.005%
8/5/2025Huntington National Bank347$26K0.0%N/A0.000%
8/5/2025Bank of New York Mellon Corp184,312$14.00M0.0%-16.1%0.144%
8/5/2025Bank of Montreal Can231,022$17.54M0.0%+9.9%0.180%
8/5/2025State of Michigan Retirement System8,000$607K0.0%-11.1%0.006%
8/5/2025ANTIPODES PARTNERS Ltd823,169$62.51M1.9%N/A0.642%
8/4/2025Amalgamated Bank15,238$1.16M0.0%-2.2%0.012%
8/4/2025Atria Investments Inc2,999$228K0.0%N/A0.002%
8/1/2025Y Intercept Hong Kong Ltd32,522$2.47M0.1%N/A0.025%
(Data available from 1/1/2016 forward)

WLK Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of WLK shares?

During the previous two years, 397 institutional investors and hedge funds held shares of Westlake. The most heavily invested institutionals were Victory Capital Management Inc. ($390.12M), Vanguard Group Inc. ($355.14M), FMR LLC ($164.94M), Capital World Investors ($147.61M), Nuveen Asset Management LLC ($112.71M), Brandes Investment Partners LP ($110.62M), and Dimensional Fund Advisors LP ($107.09M).Learn more on Westlake's institutional investors.

What percentage of Westlake's stock is owned by institutional investors?

28.40% of Westlake's stock is owned by institutional investors. Learn more on WLK's institutional investor holdings.

Which institutional investors have been buying Westlake's stock?

Of the 330 institutional investors that purchased Westlake's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Norges Bank ($2.14M), Victory Capital Management Inc. ($1.16M), Brandes Investment Partners LP ($1.04M), Balyasny Asset Management L.P. ($873.89K), Millennium Management LLC ($849.80K), ANTIPODES PARTNERS Ltd ($823.17K), and Nuveen LLC ($729.52K).

How much institutional buying is happening at Westlake?

Institutional investors have bought a total of 15,621,118 shares in the last 24 months. This purchase volume represents approximately $1.62B in transactions.

Which of Westlake's major shareholders have been selling company stock?

Of the 143 institutional investors that sold Westlake's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: FMR LLC ($2.67M), Balyasny Asset Management L.P. ($442.03K), Ilex Capital Partners UK LLP ($425.44K), Vanguard Group Inc. ($327.66K), Squarepoint Ops LLC ($275.15K), State Street Corp ($237.88K), and 1832 Asset Management L.P. ($237.08K).

How much institutional selling is happening at Westlake?

Institutional investors have sold a total of 7,187,173 shares in the last 24 months. This volume of shares sold represents approximately $783.85M in transactions.


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This page (NYSE:WLK) was last updated on 10/10/2025 by MarketBeat.com Staff
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