NYSE: AVTR
Avantor Inc Stock Ownership - Who owns Avantor?

Insider buying vs selling

Have Avantor Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Emmanuel LignerPresident and CEO2025-11-1787,500$11.35
$993.13kBuy
Gregory L. SummeDirector2025-10-30100,000$11.25
$1.13MBuy
Benoit GourdierEVP Bioscience Production2025-10-021,264$13.77
$17.41kSell
Gregory L. SummeDirector2025-08-21100,000$12.56
$1.26MBuy
Brittany HankamerEVP Chief HR Officer2025-08-14181$12.98
$2.35kSell
Steven W. EckSVP Chief Accounting Officer2025-08-053,476$11.39
$39.59kSell
Steven W. EckSVP Chief Accounting Officer2025-07-311,385$13.44
$18.61kSell
Claudius SokenuEVP Chief Legal Compliance2025-07-243,123$14.01
$43.75kSell
Corey WalkerPresident Laboratory Solutions2025-06-212,730$13.57
$37.05kSell
Gregory L. SummeDirector2025-05-2330,000$12.50
$375.00kBuy

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Net Insider Buy/Sell (L12M) Ownership

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AVTR Shareholders

What type of owners hold Avantor Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Dodge Cox17.27%117,746,888$1.37BInstitution
Vanguard Group Inc9.68%65,988,977$768.11MInstitution
Blackrock Inc8.91%60,716,987$706.75MInstitution
Thomas Connolly8.64%58,881,710$685.38MInsider
Goldman Sachs Co LLC6.38%43,483,708$506.15MInsider
Barrow Hanley Mewhinney Strauss LLC5.07%34,548,129$402.14MInstitution
T Rowe Price Investment Management Inc4.83%32,927,695$383.28MInstitution
New Mountain Investments III LLC4.11%28,000,000$325.92MInsider
State Street Corp2.99%20,365,770$237.06MInstitution
Engine Capital Management LP2.89%19,720,430$229.55MInstitution

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AVTR vs Specialty Chemical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AVTR83.06%16.94%Net BuyingNet Buying
NEU54.93%45.07%Net Selling
EMN87.96%2.10%Net SellingNet Selling
WLK1.47%98.53%Net SellingNet Selling
AXTA46.34%53.66%Net SellingNet Selling

Avantor Stock Ownership FAQ

Who owns Avantor?

Avantor (NYSE: AVTR) is owned by 99.50% institutional shareholders, 20.29% Avantor insiders, and 0.00% retail investors. Thomas Connolly is the largest individual Avantor shareholder, owning 58.88M shares representing 8.64% of the company. Thomas Connolly's Avantor shares are currently valued at $664.77M.

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