Weiss Asset Management’s Avantor AVTR Stock Holding History

Weiss Asset Management’s Portfolio AVTR Stock Details AVTR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$4.14M	Sell	527,903 -227,493	-30%	-$2.24M	0.08%	197
2025 Q4	$8.66M	Buy	755,396 +204,788	+37%	+$2.52M	0.12%	149
2025 Q3	$6.87M	Buy	+550,608	New	+$7.09M	0.1%	124
2024 Q4	–	Sell	-68,342	Closed	-$1.77M	–	638
2024 Q3	$1.77M	Buy	+68,342	New	+$1.68M	0.05%	344
2023 Q1	–	Sell	-100,000	Closed	-$2.11M	–	342
2022 Q4	$2.11M	Buy	+100,000	New	+$2.07M	0.1%	238
2022 Q3	–	Sell	-48,545	Closed	-$1.51M	–	662
2022 Q2	$1.51M	Buy	48,545 +30,566	+170%	+$954K	0.04%	400
2022 Q1	$608K	Buy	+17,979	New	+$641K	0.01%	610

Other funds holding AVTR

Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Wellington Management Group

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Greenhaven Associates Purchase, New York $6.07B AUM 11.2% 1-Year Est. Return

Barrow, Hanley, Mewhinney & Strauss

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Engine Capital Management New York $828M AUM 6.49% 1-Year Est. Return

Dimensional Fund Advisors

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return