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Avantor (AVTR) Institutional Ownership

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$15.09 -0.15 (-0.99%)
Closing price 09/30/2026 03:59 PM Eastern
Extended Trading
$15.06 -0.03 (-0.23%)
As of 09/30/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Avantor (NYSE:AVTR)

Current
Institutional Ownership
Percentage
95.08%
Number of
Institutional Buyers
(last 12 months)
252
Total
Institutional Inflows
(last 12 months)
$3.02B
Number of
Institutional Sellers
(last 12 months)
188
Total
Institutional Outflows
(last 12 months)
$1.25B
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AVTR Institutional Buying and Selling by Quarter

Avantor Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026Sequoia Financial Advisors LLC22,739$225K0.0%+100.1%0.003%
9/9/2026WINTON GROUP Ltd10,300$102K0.0%-84.9%0.002%
9/9/2026Engineers Gate Manager LP54,570$540K0.0%+362.5%0.008%
9/9/2026Cidel Asset Management Inc.11,299$112K0.0%N/A0.002%
9/9/2026Integrated Wealth Concepts LLC12,912$128K0.0%N/A0.002%
9/9/2026IFP Advisors Inc5,858$58K0.0%+901.4%0.001%
9/9/2026Squarepoint Ops LLC1,006,446$9.96M0.0%+418.1%0.149%
9/8/2026Allworth Financial LP16,512$163K0.0%+663.4%0.002%
9/8/2026Arizona State Retirement System181,895$1.80M0.0%-2.9%0.027%
9/8/2026Nykredit A S13,287$132K0.0%N/A0.002%
8/27/2026Corient Private Wealth LP1,760,605$17.43M0.0%+176.2%0.260%
8/26/2026Amundi515,503$5.10M0.0%-3.0%0.076%
8/26/2026HighTower Advisors LLC85,072$842K0.0%+3.4%0.013%
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al194,100$1.92M0.0%N/A0.029%
8/23/2026HB Wealth Management LLC28,137$279K0.0%N/A0.004%
8/22/2026AlphaGrep UK Ltd15,752$156K0.0%N/A0.002%
8/22/2026Syon Capital LLC23,415$232K0.0%+112.4%0.003%
8/21/2026AXQ Capital LP32,254$319K0.0%-80.0%0.005%
8/21/2026Nykredit A S13,287$132K0.0%N/A0.002%
8/20/2026Straightline Group LLC28,179$279K0.1%N/A0.004%
8/20/2026Private Management Group Inc.3,097,234$30.66M0.8%+13.3%0.458%
8/20/2026Greenleaf Trust20,108$199K0.0%N/A0.003%
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC2,027,738$20.08M0.0%-5.5%0.300%
8/19/2026Hsbc Holdings PLC33,534$332K0.0%+8.0%0.005%
8/18/2026North Star Asset Management Inc.138,877$1.38M0.1%N/A0.021%
8/18/2026Empowered Funds LLC25,594$253K0.0%N/A0.004%
8/18/2026United Capital Financial Advisors LLC25,124$249K0.0%N/A0.004%
8/18/2026Public Employees Retirement System of Ohio187,865$1.86M0.0%N/A0.028%
8/17/2026Corient Private Wealth LP1,722,983$17.06M0.0%N/A0.255%
8/17/2026Bank of America Corp DE10,989,344$108.80M0.0%N/A1.625%
8/15/2026Freestone Grove Partners LP5,714,884$56.58M0.4%N/A0.845%
8/15/2026Man Group plc990,477$9.81M0.0%N/A0.146%
8/15/2026Jupiter Topco LLC307,978$3.05M0.0%N/A0.046%
8/14/2026ADAR1 Capital Management LLC130,000$1.29M0.1%N/A0.019%
8/14/2026Hsbc Holdings PLC33,534$332K0.0%N/A0.005%
8/14/2026EFG International AG87,500$866K0.0%N/A0.013%
8/14/2026Canada Pension Plan Investment Board241,800$2.39M0.0%N/A0.036%
8/14/2026Legal & General Group Plc888,490$8.80M0.0%N/A0.131%
8/14/2026The Manufacturers Life Insurance Company953,968$9.44M0.0%N/A0.141%
8/14/2026Algert Global LLC576,390$5.71M0.1%-8.6%0.085%
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8/13/2026Sanctuary Advisors LLC63,333$627K0.0%N/A0.009%
8/13/2026Connor Clark & Lunn Investment Management Ltd.388,392$3.85M0.0%N/A0.057%
8/13/2026Meiji Yasuda Asset Management Co Ltd.15,889$157K0.0%N/A0.002%
8/13/2026Barrow Hanley Mewhinney & Strauss LLC19,735,968$195.39M0.6%N/A2.918%
8/12/2026Quantbot Technologies LP19,791$196K0.0%N/A0.003%
8/12/2026Evolve Private Wealth LLC14,040$139K0.0%N/A0.002%
8/12/2026Callan Family Office LLC204,134$2.02M0.0%N/A0.030%
8/12/2026Manhattan West Asset Management LLC224,212$2.22M0.4%N/A0.033%
8/11/2026Allworth Financial LP16,512$163K0.0%N/A0.002%
8/11/2026Advisors Capital Management LLC441,317$4.37M0.0%N/A0.065%
8/11/2026Vise Technologies Inc.73,825$731K0.0%N/A0.011%
8/11/2026Western Standard LLC2,109,984$20.89M7.1%N/A0.312%
8/10/2026NewEdge Wealth LLC13,800$137K0.0%N/A0.002%
8/10/2026Danica Pension Livsforsikringsaktieselskab63,072$624K0.0%N/A0.009%
8/10/2026Diversify Advisory Services LLC33,469$394K0.0%N/A0.005%
8/8/2026Meeder Advisory Services Inc.24,941$247K0.0%N/A0.004%
8/7/2026Citizens Financial Group Inc. RI23,150$229K0.0%N/A0.003%
8/7/2026BlackRock Inc.70,281,231$695.78M0.0%N/A10.391%
8/7/2026Deutsche Bank AG190,914$1.89M0.0%N/A0.028%
8/7/2026OneDigital Investment Advisors LLC142,922$1.42M0.0%N/A0.021%
8/7/2026Diamond Hill Capital Management LLC Investment Advisor1,046,390$10.36M0.1%N/A0.155%
8/6/2026Bank of New York Mellon Corp4,121,222$40.80M0.0%N/A0.609%
8/6/2026State of Wyoming7,473$74K0.0%N/A0.001%
8/6/2026GSA Capital Partners LLP80,841$800K0.1%N/A0.012%
8/3/2026Oppenheimer Asset Management Inc.81,327$805K0.0%N/A0.012%
7/10/2026Handelsbanken Fonder AB278,500$2.76M0.0%+41.2%0.041%
7/9/2026First Bank & Trust26,696$264K0.0%-18.4%0.004%
7/8/2026Assenagon Asset Management S.A.556,871$5.51M0.0%+425.0%0.082%
7/7/2026GAMMA Investing LLC46,592$461K0.0%+93.3%0.007%
7/2/2026Versant Capital Management Inc9,073$90K0.0%+372.1%0.001%
6/18/2026Pacer Advisors Inc.78,486$615K0.0%-28.3%0.011%
6/16/2026Empowered Funds LLC22,518$177K0.0%-15.9%0.003%
6/3/2026Parallel Advisors LLC8,452$66K0.0%+21.4%0.001%
5/22/2026Verus Capital Partners LLC14,147$111K0.0%N/A0.002%
5/19/2026Bank of America Corp DE7,067,563$55.41M0.0%+24.3%1.035%
5/19/2026Edgestream Partners L.P.418,095$3.28M0.1%+21.8%0.061%
5/18/2026ADAR1 Capital Management LLC80,000$627K0.0%+14.3%0.012%
5/18/2026Amundi531,575$4.17M0.0%+357.3%0.078%
5/18/2026California State Teachers Retirement System785,799$6.16M0.0%+22.6%0.115%
5/18/2026Readystate Asset Management LP788,250$6.18M0.3%-3.1%0.115%
5/18/2026Royal Bank of Canada230,629$1.81M0.0%-21.6%0.034%
5/18/2026Empowered Funds LLC22,518$177K0.0%-15.9%0.003%
5/18/2026Engine Capital Management LP19,780,830$155.08M18.7%+65.8%2.897%
5/18/2026Eversept Partners LP2,974,287$23.32M1.2%-6.4%0.436%
5/16/2026The Manufacturers Life Insurance Company1,101,504$8.64M0.0%-87.4%0.161%
5/16/2026Maverick Capital Ltd.100,814$790K0.0%N/A0.015%
5/16/2026Quantinno Capital Management LP1,169,147$9.17M0.0%+187.4%0.171%
5/16/2026Lazard Asset Management LLC81,813$641K0.0%N/A0.012%
5/16/2026ABS Direct Equity Fund LLC75,000$588K0.5%-25.0%0.011%
5/15/2026Weiss Asset Management LP527,903$4.14M0.1%-30.1%0.077%
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5/15/2026London Co. of Virginia10,852,257$85.08M0.5%-9.1%1.589%
5/14/2026Gabelli Funds LLC110,500$866K0.0%-39.0%0.016%
5/14/2026Public Employees Retirement System of Ohio192,289$1.51M0.0%-3.3%0.028%
5/14/2026Caxton Associates LLP10,055$79K0.0%N/A0.001%
5/14/2026Clarkston Capital Partners LLC8,629,389$67.65M5.2%-42.9%1.264%
5/14/2026Bank of Nova Scotia41,600$326K0.0%-67.0%0.006%
5/14/2026Sei Investments Co.5,287,850$41.46M0.0%+0.9%0.774%
5/14/2026State of Wyoming34,905$274K0.0%+473.0%0.005%
5/13/2026Cetera Investment Advisers38,569$302K0.0%+34.1%0.006%
5/13/2026First Trust Advisors LP29,376$230K0.0%-98.6%0.004%


AVTR Institutional Ownership - Frequently Asked Questions

During the previous two years, 565 institutional investors and hedge funds held shares of Avantor. The most heavily invested institutionals were Dodge & Cox ($1.34B), Vanguard Group Inc. ($743.81M), BlackRock Inc. ($695.78M), T. Rowe Price Investment Management Inc. ($368.23M), Wellington Management Group LLP ($268.58M), Greenhaven Associates Inc. ($234.94M), and State Street Corp ($231.60M).Learn more on Avantor's institutional investors.

95.08% of Avantor's stock is owned by institutional investors. Learn more on AVTR's institutional investor holdings.

Of the 484 institutional investors that purchased Avantor's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($70.28M), Dodge & Cox ($49.33M), Barrow Hanley Mewhinney & Strauss LLC ($32.03M), Wellington Management Group LLP ($23.60M), Norges Bank ($21.20M), Greenhaven Associates Inc. ($20.50M), and Bank of America Corp DE ($16.49M).

Institutional investors have bought a total of 279,518,692 shares in the last 24 months. This purchase volume represents approximately $3.02B in transactions.

Of the 188 institutional investors that sold Avantor's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: T. Rowe Price Investment Management Inc. ($12.48M), The Manufacturers Life Insurance Company ($10.90M), Engine Capital Management LP ($7.79M), Bessemer Group Inc. ($7.00M), Clarkston Capital Partners LLC ($6.48M), Corient Private Wealth LLC ($5.76M), and Close Asset Management Ltd ($4.62M).

Institutional investors have sold a total of 112,178,380 shares in the last 24 months. This volume of shares sold represents approximately $1.25B in transactions.


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Institutional ownership data for NYSE:AVTR is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
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