Investment Management Corp of Ontario (IMCO)’s Avantor AVTR Stock Holding History

Investment Management Corp of Ontario (IMCO)’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	-16,685	Closed	-$225K	–	642
2025 Q2	$225K	Sell	16,685 -2,500	-13%	-$34.2K	﹤0.01%	627
2025 Q1	$311K	Buy	19,185 +300	+2%	+$5.68K	0.01%	609
2024 Q4	$398K	Sell	18,885 -3,700	-16%	-$83.2K	0.01%	312
2024 Q3	$584K	Buy	22,585 +7,500	+50%	+$184K	0.01%	508
2024 Q2	$320K	Buy	15,085 +4,200	+39%	+$101K	0.01%	538
2024 Q1	$278K	Sell	10,885 -4,900	-31%	-$117K	0.01%	522
2023 Q4	$360K	Buy	+15,785	New	+$323K	0.01%	539

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

Investment Management Corp of Ontario (IMCO)'s AVTR Position: Q3 2025 in Review

Investment Management Corp of Ontario (IMCO) sold out of Avantor (AVTR) in Q3 2025, closing a stake of 16,685 shares — an estimated $225K sold.

Investment Management Corp of Ontario (IMCO) first reported a position in AVTR in Q4 2023 and held it in 7 quarters. The position peaked at $584K in Q3 2024. 466 funds tracked by Wall St. Rank hold AVTR as of Q3 2025.

Investment Management Corp of Ontario (IMCO) reported no remaining Avantor position as of Q3 2025 after selling out during the quarter.
Investment Management Corp of Ontario (IMCO) sold 16,685 Avantor shares in Q3 2025, an estimated $225K.
Investment Management Corp of Ontario (IMCO) first reported a position in Avantor in Q4 2023 and held it in 7 quarters.
Investment Management Corp of Ontario (IMCO)'s Avantor position peaked at $584K in Q3 2024.
466 funds tracked by Wall St. Rank held Avantor as of Q3 2025.

Based on Investment Management Corp of Ontario (IMCO)'s 13F filing for Q3 2025, filed 14 Nov 2025.