OP Asset Management’s Avantor AVTR Stock Holding History

OP 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
2025 Q3	–	Sell	-75,616	Closed	-$1.02M	–	792
2025 Q2	$1.02M	Hold	75,616	–	–	0.02%	592
2025 Q1	$1.23M	Buy	+75,616	New	+$1.43M	0.02%	546

Other funds holding AVTR

Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

ECM

Engine Capital Management New York $1.03B AUM 4.33% 1-Year Est. Return

Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

CCP

Clarkston Capital Partners Rochester, Michigan $1.18B AUM 0.37% 1-Year Est. Return

OP Asset Management's AVTR Position: Q3 2025 in Review

OP Asset Management sold out of Avantor (AVTR) in Q3 2025, closing a stake of 75,616 shares — an estimated $1.02M sold.

OP Asset Management first reported a position in AVTR in Q1 2025 and held it in 2 quarters. The position peaked at $1.23M in Q1 2025. 466 funds tracked by Wall St. Rank hold AVTR as of Q3 2025.

OP Asset Management reported no remaining Avantor position as of Q3 2025 after selling out during the quarter.
OP Asset Management sold 75,616 Avantor shares in Q3 2025, an estimated $1.02M.
OP Asset Management first reported a position in Avantor in Q1 2025 and held it in 2 quarters.
OP Asset Management's Avantor position peaked at $1.23M in Q1 2025.
466 funds tracked by Wall St. Rank held Avantor as of Q3 2025.

Based on OP Asset Management's 13F filing for Q3 2025, filed 20 Apr 2026.