BlackRock’s Avantor AVTR Stock Holding History

BlackRock’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
2019 Q3	–	Sell	-85,500	Closed	-$1.63M	–	4969
2019 Q2	$1.63M	Buy	+85,500	New	+$1.52M	﹤0.01%	3842

Other funds holding AVTR

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

ECM

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

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

NMC

New Mountain Capital New York $139M AUM 26.45% 1-Year Est. Return

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

BlackRock's AVTR Position: Q2 2026 in Review

BlackRock increased its Avantor (AVTR) stake by 7% in Q2 2026, buying an estimated $39.4M and bringing the position to 70,281,231 shares worth $696M. The position accounts for 0.01% of the portfolio, ranked #973.

BlackRock first reported a position in AVTR in Q2 2019 and has held it in 29 quarters since. The position peaked at $1.89B in Q3 2024. 460 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

BlackRock held 70,281,231 shares of Avantor worth $696M as of Q2 2026.
BlackRock bought 4,577,677 Avantor shares in Q2 2026, an estimated $39.4M.
Avantor made up 0.01% of BlackRock's portfolio in Q2 2026, its #973 holding.
BlackRock first reported a position in Avantor in Q2 2019 and has held it in 29 quarters since.
BlackRock's Avantor position peaked at $1.89B in Q3 2024.
460 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.