AVTR

Avantor, Inc.

Superinvestors

Institutional investors holding AVTR

Investor	Fund	Weight	Shares	Value	Quarter
Daniel Loeb	Third Point	3.68%	8,360,000	$282.7M	2022Q1
Greenhaven Associates	Greenhaven Associates	2.92%	22,593,838	$177.1M	2026Q1
Harry Burn	Sound Shore	2.37%	4,172,352	$67.6M	2025Q1
Robert Olstein	Olstein Capital Management	2.07%	1,210,000	$9K	2026Q1
Sarah Ketterer	Causeway Capital Management	1.49%	2,559,572	$58.4M	2023Q4
Mason Hawkins	Longleaf Partners – Southeastern Asset Management	1.36%	3,520,212	$27.6M	2026Q1
John Armitage	Egerton Capital	0.96%	7,362,154	$133.6M	2019Q4
Henry Ellenbogen	Durable Capital Partners	0.83%	4,809,948	$101.3M	2024Q4
Dodge & Cox	Dodge & Cox	0.52%	119,648,329	$938.0M	2026Q1
Yacktman Asset Management	Yacktman Asset Management	0.50%	4,745,000	$37.2M	2026Q1
Third Avenue Management	Third Avenue Management	0.29%	31,670	$746.1M	2004Q3
Viking Global Investors	Viking Global Investors	0.26%	2,898,662	$56.8M	2022Q3
Tweedy Browne Co.	Tweedy Browne Value Fund	0.04%	141,719	$1.0M	2011Q4
Lee Ainslie	Maverick Capital	0.01%	100,814	$790K	2026Q1
First Eagle Investment Management	First Eagle Investment Management	0.00%	12,082	$196K	2025Q1

Congressional Activity

Congressional data coming soon

Insider Activity

15

Total trades

$947K

Volume

13

Buys

1

Sells

Last trade: May 7, 2026

Insider Tradeslast 90 days

Date	Insider	Type	Value
May 7, 2026	Mala Murthy	Buy	–
May 7, 2026	Mala Murthy	Buy	–

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.