MF
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Magnetar Financial’s Avantor AVTR Stock Holding History

Magnetar Financial’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
2022
Q3 		– Sell
-119,700
Closed -$287 – 1364
2022
Q2 		$287 Buy
+119,700
New +$3.74M ﹤0.01% 1242
2021
Q4 		– Sell
-25,000
Closed -$45K – 1371
2021
Q3 		$45K Buy
+25,000
New +$977K ﹤0.01% 1274

Other funds holding AVTR

Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 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

Magnetar Financial's AVTR Position: Q1 2026 in Review

Magnetar Financial opened a new position in Avantor (AVTR) in Q1 2026: 224,084 shares worth $1.76M. The stake represents 0.02% of the portfolio and ranks #341 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in AVTR as recently as Q3 2024.

Magnetar Financial first reported a position in AVTR in Q3 2019 and has held it in 20 quarters since. The position peaked at $55.5M in Q1 2022. 430 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

  • Magnetar Financial held 224,084 shares of Avantor worth $1.76M as of Q1 2026.
  • Avantor was a new Magnetar Financial position in Q1 2026.
  • Avantor made up 0.02% of Magnetar Financial's portfolio in Q1 2026, its #341 holding.
  • Magnetar Financial first reported a position in Avantor in Q3 2019 and has held it in 20 quarters since.
  • Magnetar Financial's Avantor position peaked at $55.5M in Q1 2022.
  • 430 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

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