BlackRock
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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
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
GA
Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 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
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
ECM
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
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

BlackRock's AVTR Position: Q1 2026 in Review

BlackRock increased its Avantor (AVTR) stake by 10% in Q1 2026, buying an estimated $60.1M and bringing the position to 65,703,554 shares worth $515M. The position accounts for 0.01% of the portfolio, ranked #1081.

BlackRock first reported a position in AVTR in Q2 2019 and has held it in 28 quarters since. The position peaked at $1.89B in Q3 2024. 430 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

  • BlackRock held 65,703,554 shares of Avantor worth $515M as of Q1 2026.
  • BlackRock bought 6,106,628 Avantor shares in Q1 2026, an estimated $60.1M.
  • Avantor made up 0.01% of BlackRock's portfolio in Q1 2026, its #1081 holding.
  • BlackRock first reported a position in Avantor in Q2 2019 and has held it in 28 quarters since.
  • BlackRock's Avantor position peaked at $1.89B in Q3 2024.
  • 430 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.