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Avantor, Inc.

AVTR
Exchange
NYSE
Industry
Laboratory Analytical Instruments
SEC CIK
0001722482

No open-market purchases or sales by Avantor, Inc. insiders were filed in the last 90 days; 460 institutions reported holding it in 13F filings for Q2 2026, worth $6.92B in total; superinvestors Greenhaven Associates and Southeastern Asset Management (Longleaf) hold it.

Q1 2026 vs. Q4 2025

How the institutions holding Avantor, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of AVTR: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders4218433+20
Shares694.1M72.3M675.7M+53.9M (+8.7%)
Value$7.97B$828.0M$5.30B−$1.85B (−25.8%)

8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (91)

Institutions that held Avantor, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to AVTR in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Portfolio Management LLC31,275,847$245.2M0.01%
Vanguard Capital Management LLC30,606,112$240.0M0.01%
Yacktman Asset Management LP4,745,000$37.2M0.50%
Vanguard Fiduciary Trust Co4,227,746$33.1M0.01%
Marshall Wace, LLP3,437,833$27.0M0.03%
Prescott General Partners LLC2,600,000$20.4M1.49%
Diamond Hill Capital Management Inc1,767,029$13.9M0.09%
Loomis Sayles & Co L P1,241,432$9.73M0.01%
Kettle Hill Capital Management, LLC1,128,537$8.85M2.22%
Woodline Partners LP755,694$5.92M0.02%
Man Group plc611,110$4.79M0.01%
Qube Research & Technologies Ltd608,347$4.77M0.01%
Vanguard Asset Management, Ltd601,610$4.72M0.00%
Vanguard Global Advisers, LLC568,132$4.45M0.00%
Twinbeech Capital LP567,389$4.45M0.46%
Shapiro Capital Management LLC536,275$4.20M0.26%
Worldquant Millennium Advisors LLC365,183$2.86M0.01%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.302,195$2.37M0.00%
Cna Financial Corp300,000$2.35M1.00%
Magnetar Financial LLC224,084$1.76M0.02%
Havemeyer Place LP202,483$1.59M0.18%
HighVista Strategies LLC186,500$1.46M0.40%
ING Groep NV172,600$1.35M0.01%
Vanguard Investments Australia, Ltd.171,134$1.34M0.00%
Axq Capital, LP160,895$1.26M0.16%
Mangrove Partners140,513$1.10M0.09%
Bridgewater Associates, LP128,209$1.01M0.00%
Dark Forest Capital Management LP110,848$869.0K0.08%
Grantham, Mayo, Van Otterloo & Co. LLC106,700$836.5K0.00%
Maverick Capital LtdSuperinvestorMaverick Capital100,814$790.4K0.01%
Gerald Baker Financial Group LLC94,206$738.6K0.23%
HRT Financial LP88,357$692.0K0.00%
Lazard Asset Management LLC81,813$641.4K0.00%
Intech Investment Management LLC80,458$630.8K0.01%
Harbor Capital Advisors, Inc.45,709$358.0K0.03%
Numerai GP LLC39,142$306.9K0.03%
Calamos Advisors LLC38,401$301.1K0.00%
Calamos Wealth Management LLC38,401$301.1K0.01%
Bridgefront Capital, LLC34,523$270.7K0.07%
Shay Capital LLC32,500$254.8K0.04%
Chicago Partners Investment Group LLC24,069$199.3K0.00%
Aigen Investment Management, LP19,266$151.0K0.04%
Mirabella Financial Services LLP18,791$147.3K0.01%
Evergreen Capital Management LLC18,600$145.8K0.00%
United Capital Financial Advisers, LLC18,491$145.0K0.00%
Oxford Asset Management LLP16,346$128.2K0.05%
Advisory Services Network, LLC16,154$126.6K0.00%
Colony Group, LLC15,200$124.3K0.00%
BTG Pactual Asset Management US LLC15,524$121.7K0.01%
Connable Office Inc15,239$119.5K0.01%
Alpha Wealth Funds, LLC15,000$113.8K0.08%
Arq Wealth Advisors, LLC14,225$111.5K0.02%
Beverly Hills Private Wealth, LLC14,153$111.0K0.02%
Verus Capital Partners, LLC14,147$110.9K0.01%
Sig Brokerage, LP13,777$108.0K0.03%
Sagewood Asset Management LP13,191$103.4K0.03%
RMB Capital Management, LLC12,552$98.4K0.00%
Vident Advisory, LLC12,463$97.7K0.00%
Allspring Global Investments Holdings, LLC12,290$95.5K0.00%
Engineers Gate Manager LP11,800$92.5K0.00%
Camden Capital, LLC10,547$82.7K0.01%
Custom Index Systems, LLC10,219$80.1K0.03%
Journey Strategic Wealth LLC10,140$79.5K0.00%
Caxton Associates LLP10,055$78.8K0.00%
Acadian Asset Management LLC5,295$41.0K0.00%
ZRC Wealth Management, LLC1,627$12.8K0.00%
Owl Creek Wealth Partners LLC1,305$10.2K0.00%
Walleye Trading LLC591$4.63K0.00%
Salomon & Ludwin, LLC451$3.56K0.00%
Zions Bancorporation, National Association329$2.58K0.00%
Twin Peaks Wealth Advisors, LLC260$2.04K0.00%
Manchester Capital Management LLC140$1.10K0.00%
Bruce G. Allen Investments, LLC140$1.10K0.00%
UMA Financial Services, Inc.135$1.06K0.00%
Bell Investment Advisors, Inc123$9650.00%
Bogart Wealth, LLC122$9560.00%
Bayforest Capital Ltd121$9490.00%
Bare Financial Services, Inc80$6270.00%
Investors Research Corp68$5330.00%
Cornerstone Planning Group LLC64$5160.00%
SHP Wealth Management60$4700.00%
Addison Advisors LLC52$4080.00%
Creative Financial Designs Inc40$3140.00%
CVA Family Office, LLC25$1960.00%
3 Factor Indexing, LLC12$950.00%
Quaker Wealth Management, LLC11$870.00%
American Capital Advisory, LLC11$870.00%
Sunrise Financial Services, LLC10$780.00%
AdvisorNet Financial, Inc7$550.00%
Vermillion Wealth Management, Inc.3$240.00%
Avion Wealth67$00.00%

Sold out (71)

Institutions that held Avantor, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of AVTR in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Alberta Investment Management Corp1,111,144$12.7M
Westwood Holdings Group Inc.949,003$10.9M
Prosight Management, LP898,499$10.3M
Verition Fund Management LLC581,330$6.66M
Thornburg Investment Management Inc576,959$6.61M
Reinhart Partners, Inc.484,963$5.56M
Boston Partners433,421$4.97M
Aquatic Capital Management LLC425,812$4.88M
Pacific Capital Partners Ltd424,520$4.86M
Two Sigma Investments, LP412,713$4.73M
Circumference Group LLC305,000$3.50M
Neo Ivy Capital Management299,042$3.43M
Broyhill Asset Management277,534$3.18M
Bellevue Group AG276,266$3.17M
CenterBook Partners LP231,253$2.65M
Jain Global LLC210,598$2.41M
AMG National Trust Bank138,313$1.59M
Qsemble Capital Management, LP115,553$1.32M
Twin Tree Management, LP93,341$1.07M
B. Metzler seel. Sohn & Co. AG75,829$869.0K
Vontobel Holding Ltd.70,135$803.7K
Y-Intercept (Hong Kong) Ltd63,754$730.6K
AIA Group Ltd56,756$650.4K
Natixis56,178$643.8K
Jump Financial, LLC51,789$593.5K
Brown Brothers Harriman & Co50,000$573.0K
Centiva Capital, LP50,000$573.0K
Burns Matteson Capital Management, LLC46,407$531.8K
Ethic Inc.41,571$476.4K
Legacy Wealth Asset Management, LLC37,081$424.9K
Pekin Hardy Strauss, Inc.37,000$424.0K
Dynamic Advisor Solutions LLC34,796$398.8K
MML Investors Services, LLC27,790$318.5K
Clear Street Markets LLC25,000$286.5K
Atria Investments LLC21,275$243.8K
Veracity Capital LLC20,462$234.5K
Hunting Hill Global Capital, LLC20,387$233.6K
Fieldview Capital Management, LLC18,546$212.5K
Alpine Global Management, LLC18,448$211.4K
Citizens Financial Group Inc18,055$206.9K
Gateway Investment Advisers LLC15,065$172.6K
Archer Investment Corp13,047$149.5K
Private Advisor Group, LLC11,981$137.3K
Rafferty Asset Management, LLC11,458$131.3K
Transcend Wealth Collective, LLC10,649$122.0K
Portside Wealth Group, LLC10,213$117.0K
Castleview Partners, LLC10,199$116.9K
Wexford Capital LP8,953$102.6K
Quest Partners LLC6,550$75.1K
Caitong International Asset Management Co., Ltd6,051$69.3K
Towarzystwo Funduszy Inwestycyjnych Pzu SA5,040$57.8K
PEAK6 LLC2,697$30.9K
DV Trading LLC1,601$18.3K
Fideuram Asset Management (Ireland) dac580$12.8K
CoreCap Advisors, LLC781$8.95K
GWM Advisors LLC429$4.92K
Ancora Advisors, LLC385$4.41K
Elyxium Wealth, LLC363$4.16K
High Note Wealth, LLC354$4.06K
Ameriflex Group, Inc.301$3.45K
Basecamp Wealth Advisors LLC205$2.35K
Cornerstone Financial Management LLC166$1.90K
Cromwell Holdings LLC113$1.29K
Atlantic Edge Private Wealth Management, LLC63$722
Motco55$630
Fortitude Family Office, LLC46$527
Financial Consulate, Inc34$390
Clearstead Advisors, LLC29$333
Quest 10 Wealth Builders, Inc.10$117
HFM Investment Advisors, LLC6$69
Bravera Wealth6$69

Not filed for Q1 2026 yet (8)

Institutions that held Avantor, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding AVTR in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc64,904,889$743.8M
Norges Bank6,398,087$73.3M
Capitolis Liquid Global Markets LLC505,000$5.79M
Comerica Bank296,375$3.40M
CIBC World Markets Corp146,958$1.68M
CIBC Private Wealth Group, LLC1,443$16.5K
Global Retirement Partners, LLC822$9.42K
Ransom Advisory, Ltd200$2.29K