AVANTOR INC (AVTR) Institutional Ownership Changes & 13F Activity

AVANTOR INC (AVTR). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Yacktman Asset Management, Dodge & Cox Stock Fund, Greenhaven Associates, Olstein Capital Management, and Longleaf Partners.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Yacktman Asset ManagementBuy4,745,0004,745,000$37,200,800
Q1 2026Dodge & Cox Stock FundBuy2,583,186119,648,329$938,042,899
Q1 2026Greenhaven AssociatesBuy2,093,18522,593,838$177,135,690
Q1 2026Olstein Capital ManagementBuy392,0001,210,000$9,486
Q1 2026Longleaf PartnersSell-28,3063,520,212$27,598,462
Q1 2026Sequoia Financial AdvisorsSell-1,27511,361$89,073
Q4 2025Greenhaven AssociatesBuy2,189,08320,500,653$234,937,483
Q4 2025Longleaf PartnersSell-1,600,9023,548,518$40,666,017
Q4 2025Dodge & Cox Stock FundSell-681,745117,065,143$1,341,566,539
Q4 2025Olstein Capital ManagementBuy24,000818,000$9,374
Q4 2025Sequoia Financial AdvisorsSell-3,34512,636$144,813
Q3 2025Greenhaven AssociatesBuy18,311,57018,311,570$228,528,394
Q3 2025Longleaf PartnersBuy5,149,4205,149,420$64,264,762
Q3 2025Renaissance Technologies LLCBuy416,2001,651,100$20,605,728
Q3 2025Dodge & Cox Stock FundBuy313,404117,746,888$1,469,481,162
Q3 2025Olstein Capital ManagementBuy115,000794,000$9,909
Q3 2025Sequoia Financial AdvisorsBuy26715,981$199,447
Q2 2025Dodge & Cox Stock FundBuy17,170,761117,433,484$1,580,654,695
Q2 2025Renaissance Technologies LLCBuy909,4001,234,900$16,621,754
Q2 2025Olstein Capital ManagementBuy111,000679,000$9,139
Q2 2025Sequoia Financial AdvisorsBuy5,85015,714$211,513
Q1 2025Dodge & Cox Stock FundBuy1,116,953100,262,723$1,625,258,740
Q1 2025Sound Shore ManagementSell-509,1834,172,352$67,633,826
Q1 2025Olstein Capital ManagementBuy212,000568,000$9,207
Q1 2025First Eagle U.S. ValueSell-7,50012,082$195,849
Q4 2024Dodge & Cox Stock FundBuy30,727,67399,145,770$2,089,001,374
Q4 2024Durable Capital PartnersSell-3,182,1504,809,948$101,345,604
Q4 2024Renaissance Technologies LLCSell-1,758,100325,500$6,858,285
Q4 2024Sound Shore ManagementBuy1,159,4264,681,535$98,639,943
Q4 2024Olstein Capital ManagementBuy121,000356,000$7,501

Frequently asked questions about AVTR activity

  • Which institutional owners are buying AVTR?

    Institutional owners buying AVTR include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in AVTR activity?

    "Buy" means an investor increased their reported position in AVTR compared to the prior reporting period. This reflects growing exposure to AVANTOR INC (AVTR) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in AVTR increasing?

    Institutional interest in AVTR can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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