Westlake (WLK) Institutional Ownership $75.38 -0.82 (-1.08%) As of 12:46 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Westlake (NYSE:WLK)CurrentInstitutional OwnershipPercentage28.40%Number ofInstitutional Buyers(last 12 months)227TotalInstitutional Inflows(last 12 months)$1.33BNumber ofInstitutional Sellers(last 12 months)144TotalInstitutional Outflows(last 12 months)$916.72M Get WLK Insider Trade Alerts Want to know when executives and insiders are buying or selling Westlake stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address Skip Chart & View Institutional Buying and Selling Data WLK Institutional Buying and Selling by Quarter Westlake Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/19/2025 UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC371,175$37.13M0.0%+7.0%0.289% 5/16/2025 Faithward Advisors LLC13,234$1.32M0.2%-1.4%0.010% 5/16/2025 United Services Automobile Association2,133$211K0.0%N/A0.002% 5/16/2025 Ashton Thomas Private Wealth LLC7,059$706K0.0%N/A0.006% 5/16/2025 Goldman Sachs Group Inc.1,041,190$104.15M0.0%+10.9%0.812% 5/16/2025 Kestra Investment Management LLC3,932$393K0.0%-11.5%0.003% 5/16/2025 Jones Financial Companies Lllp48,473$4.85M0.0%+22,982.4%0.038% 5/16/2025 Petrus Trust Company LTA6,709$671K0.1%+4.5%0.005% 5/16/2025 Millennium Management LLC901,229$90.15M0.0%+366.7%0.703% 5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.853,831$85.41M0.2%-3.2%0.666% Get the Latest News and Ratings for WLK and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Westlake and its competitors with MarketBeat's FREE daily newsletter. 5/16/2025 Jacobs Levy Equity Management Inc.775,801$77.60M0.3%-2.9%0.605% 5/16/2025 AQR Capital Management LLC19,094$1.88M0.0%+9.6%0.015% 5/16/2025 Advisors Asset Management Inc.7,622$762K0.0%+5.8%0.006% 5/16/2025 Amundi50,770$4.79M0.0%-81.8%0.040% 5/16/2025 Alyeska Investment Group L.P.192,876$19.29M0.1%+83.3%0.150% 5/16/2025 Adage Capital Partners GP L.L.C.5,988$599K0.0%-80.0%0.005% 5/15/2025 Appian Way Asset Management LP7,165$717K0.2%-52.8%0.006% 5/15/2025 Royal Bank of Canada38,687$3.87M0.0%+90.0%0.030% 5/15/2025 Graham Capital Management L.P.36,754$3.68M0.1%+105.9%0.029% 5/15/2025 Vident Advisory LLC9,863$987K0.0%+426.3%0.008% 5/15/2025 Magnetar Financial LLC27,277$2.73M0.0%N/A0.021% 5/15/2025 Canada Pension Plan Investment Board39,364$3.94M0.0%-36.3%0.031% 5/14/2025 Keeley Teton Advisors LLC11,566$1.16M0.1%-14.9%0.009% 5/14/2025 Corebridge Financial Inc.36,963$3.70M0.0%-2.4%0.029% 5/14/2025 Comerica Bank30,638$3.07M0.0%+3.5%0.024% 5/14/2025 MetLife Investment Management LLC18,583$1.86M0.0%-1.5%0.014% 5/14/2025 Walleye Capital LLC34,377$3.44M0.0%+377.1%0.027% 5/14/2025 Oliver Luxxe Assets LLC13,885$1.39M0.3%+8.8%0.011% 5/14/2025 Jump Financial LLC2,322$232K0.0%N/A0.002% 5/14/2025 APG Asset Management N.V.19,400$1.80M0.0%-2.5%0.015% 5/14/2025 Allstate Corp5,807$581K0.0%N/A0.005% 5/14/2025 Sprott Inc.90,000$9.00M0.5%+38.5%0.070% 5/14/2025 1832 Asset Management L.P.153,740$15.38M0.0%-59.1%0.120% 5/14/2025 Erste Asset Management GmbH153,201$15.33M0.2%+8.5%0.119% 5/14/2025 Hsbc Holdings PLC10,640$1.06M0.0%-59.7%0.008% 5/14/2025 HITE Hedge Asset Management LLC71,475$7.15M0.4%+17.9%0.056% 5/14/2025 Quantbot Technologies LP4,451$445K0.0%-83.1%0.003% 5/14/2025 Wellington Management Group LLP4,674$468K0.0%-89.1%0.004% 5/14/2025 Korea Investment CORP12,611$1.26M0.0%-7.5%0.010% 5/13/2025 Northern Trust Corp314,618$31.47M0.0%+2.9%0.245% You need this much to retire comfortably (Ad)Top analysts are reporting that the average person will need at least $2 million to retire comfortably these days… But when it takes an average of 41 years to turn a $100K of retirement savings into $1 million… The odds are not in our favor… We can’t promise results or guarantee against losses, but there’s no need to go another day without finding out how to target extra income with Jack’s help.But market veteran Jack Carter can show you his TOP way to target extra income every week in this vi5/13/2025 Brooklyn Investment Group601$60K0.0%+66.0%0.000% 5/13/2025 Raymond James Financial Inc.112,945$11.30M0.0%-3.4%0.088% 5/13/2025 Cresset Asset Management LLC16,127$1.61M0.0%-8.0%0.013% 5/13/2025 American Century Companies Inc.22,644$2.27M0.0%-46.9%0.018% 5/13/2025 Aberdeen Group plc10,001$1M0.0%N/A0.008% 5/13/2025 Kovitz Investment Group Partners LLC14,664$1.47M0.0%-7.9%0.011% 5/13/2025 Robotti Robert164,696$16.48M3.3%+0.2%0.128% 5/13/2025 Neuberger Berman Group LLC2,775$278K0.0%-6.0%0.002% 5/13/2025 Caitong International Asset Management Co. Ltd559$56K0.0%+3,005.6%0.000% 5/13/2025 HighTower Advisors LLC2,548$255K0.0%-5.8%0.002% 5/12/2025 Nuveen LLC729,521$72.97M0.0%N/A0.569% 5/12/2025 Aigen Investment Management LP10,572$1.06M0.2%+101.3%0.008% 5/12/2025 Entropy Technologies LP4,331$433K0.0%-48.7%0.003% 5/12/2025 Invesco Ltd.134,380$13.44M0.0%-9.2%0.105% 5/12/2025 Mitsubishi UFJ Asset Management Co. Ltd.29,692$2.97M0.0%+1.0%0.023% 5/9/2025 Mutual of America Capital Management LLC17,222$1.72M0.0%-2.6%0.013% 5/9/2025 Deutsche Bank AG33,230$3.32M0.0%-13.9%0.026% 5/9/2025 Charles Schwab Investment Management Inc.244,497$24.46M0.0%+3.4%0.190% 5/9/2025 ASR Vermogensbeheer N.V.2,490$249K0.0%N/A0.002% 5/9/2025 Vanguard Group Inc.3,550,310$355.14M0.0%-8.4%2.763% 5/9/2025 ING Groep NV29,600$2.96M0.0%+32.7%0.023% 5/8/2025Jefferies Financial Group Inc.9,108$911K0.0%+336.0%0.007% 5/8/2025 US Bancorp DE2,295$230K0.0%+13.2%0.002% 5/8/2025 Vestcor Inc888$89K0.0%-77.7%0.001% 5/8/2025 XTX Topco Ltd14,995$1.50M0.1%N/A0.012% 5/8/2025 Federated Hermes Inc.3,169$317K0.0%-9.7%0.002% 5/7/2025 LPL Financial LLC30,421$3.04M0.0%+17.3%0.024% 5/7/2025 TD Asset Management Inc3,688$369K0.0%-7.8%0.003% 5/7/2025 Knights of Columbus Asset Advisors LLC22,364$2.24M0.2%-47.8%0.017% 5/6/2025 Universal Beteiligungs und Servicegesellschaft mbH2,816$282K0.0%N/A0.002% 5/5/2025 Gries Financial LLC13,512$1.35M0.3%N/A0.011% 5/5/2025 Allianz Asset Management GmbH2,410$241K0.0%-26.1%0.002% 5/5/2025 Peterson Wealth Services6,578$658K0.2%+2.8%0.005% 5/5/2025 Transce3nd LLC4,991$498K0.2%+13.3%0.004% 5/2/2025 Victory Capital Management Inc.3,900,025$390.12M0.4%+17.7%3.035% 5/2/2025 Wealthfront Advisers LLC24,498$2.45M0.0%+61.6%0.019% 5/2/2025 Signaturefd LLC427$43K0.0%+127.1%0.000% 5/1/2025 Mutual of America Capital Management LLC17,222$1.72M0.0%-2.6%0.013% 4/30/2025 Cerity Partners LLC74,928$7.50M0.0%-9.3%0.058% 4/30/2025 Allworth Financial LP922$87K0.0%+139.5%0.001% 4/29/2025 Envestnet Asset Management Inc.26,535$2.65M0.0%+45.2%0.021% 4/29/2025 Bank of New York Mellon Corp219,679$21.97M0.0%-2.8%0.171% 4/28/2025 Principal Financial Group Inc.76,996$7.70M0.0%+0.4%0.060% 4/28/2025 Teacher Retirement System of Texas5,644$565K0.0%N/A0.004% 4/28/2025 Private Trust Co. NA316$32K0.0%+251.1%0.000% 4/25/2025 New York State Teachers Retirement System7,902$790K0.0%-2.5%0.006% 4/25/2025 KBC Group NV26,695$2.67M0.0%-2.1%0.021% 4/25/2025 Sumitomo Mitsui Trust Group Inc.79,089$7.91M0.0%-0.5%0.062% 4/24/2025 Allspring Global Investments Holdings LLC551,766$55.17M0.1%+46.6%0.429% 4/24/2025 Total Wealth Planning & Management Inc.3,965$397K0.4%+51.3%0.003% Only a handful of people know the setup that's defied these chaotic markets. (Ad)Since February, we've hit 28 out of 29 trades – that's a 96% win rate taking simple options setups on one single ticker every day. That's why Jack Carter and I teamed up to reveal The 4PM Payout Plan. Our goal here was to show you how to take these daily setups every morning to collect a 4PM payout. Naturally, no one can guarantee what the market does in the future… But these simple daily options setups have paid out with the market rallying, dropping, or staying flat. And if you want to be one of the few to not just know the ropes behind these daily setups but also deploy them for yourself…Go here now to get started on what could become your first 4PM payout.4/23/2025 Asset Management One Co. Ltd.12,253$1.23M0.0%+4.6%0.010% 4/22/2025 Manning & Napier Advisors LLC26,171$2.62M0.0%+39.3%0.020% 4/22/2025 Kentucky Retirement Systems2,289$229K0.0%N/A0.002% 4/21/2025 MFA Wealth Advisors LLC2,171$217K0.1%N/A0.002% 4/17/2025 QRG Capital Management Inc.8,680$868K0.0%-15.5%0.007% 4/17/2025 Janney Montgomery Scott LLC61,134$6.12M0.0%+2.7%0.048% 4/17/2025 Mn Services Vermogensbeheer B.V.13,700$1.37M0.0%-12.2%0.011% 4/15/2025 Fifth Third Bancorp514$51K0.0%+71.9%0.000% 4/15/2025 SG Americas Securities LLC57,560$5.76M0.0%-42.5%0.045% 4/14/2025 Wedge Capital Management L L P NC94,638$9.47M0.2%+19.5%0.074% (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, 389 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), State Street Corp ($180.15M), FMR LLC ($164.94M), Capital World Investors ($147.61M), Balyasny Asset Management L.P. ($113.87M), and Nuveen Asset Management LLC ($112.71M).Learn more on WLK's institutional investors. What percentage of Westlake stock is owned by institutional investors? 28.40% of Westlake stock is owned by institutional investors. Learn more on WLK's institutional investor holdings. Which institutional investors have been buying Westlake stock? Of the 317 institutional investors that purchased Westlake stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Victory Capital Management Inc. ($1.25M), Balyasny Asset Management L.P. ($873.89K), Millennium Management LLC ($849.80K), Norges Bank ($770.82K), Nuveen LLC ($729.52K), Jacobs Levy Equity Management Inc. ($724.77K), and Capital World Investors ($699.96K). How much institutional buying is happening at Westlake? Institutional investors have bought a total of 14,893,212 shares in the last 24 months. This purchase volume represents approximately $1.83B in transactions. Which Westlake major shareholders have been selling company stock? Of the 217 institutional investors that sold Westlake stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: FMR LLC ($2.67M), Pacer Advisors Inc. ($1.37M), Victory Capital Management Inc. ($609.58K), Envestnet Asset Management Inc. ($513.16K), Soroban Capital Partners LP ($454.02K), Vanguard Group Inc. ($419.77K), and Federated Hermes Inc. ($344.14K). How much institutional selling is happening at Westlake? Institutional investors have sold a total of 10,364,472 shares in the last 24 months. This volume of shares sold represents approximately $1.34B in transactions. Related Companies LyondellBasell Industries Major Shareholders Cabot Major Shareholders Hawkins Major Shareholders Kronos Worldwide Major Shareholders Koppers Major Shareholders Tredegar Major Shareholders International Flavors & Fragrances Major Shareholders NewMarket Major Shareholders Sensient Technologies Major Shareholders Methanex Major Shareholders This page (NYSE:WLK) was last updated on 5/21/2025 by MarketBeat.com Staff From Our PartnersGold Hits New Highs as Global Markets SpiralWhen Trump took office in 2017, gold was just $1,100 an ounce. 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