MF
AVTR icon

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
2026
Q2 		$208K Sell
21,017
-203,067
-91% -$1.75M ﹤0.01% 929
2026
Q1 		$1.76M Buy
+224,084
New +$2.2M 0.02% 341
2024
Q4 		– Sell
-100,016
Closed -$2.59M – 615
2024
Q3 		$2.59M Buy
100,016
+55,976
+127% +$1.37M 0.06% 216
2024
Q2 		$934K Sell
44,040
-1,330,772
-97% -$32M 0.02% 278
2024
Q1 		$35.2M Buy
+1,374,812
New +$32.7M 0.79% 42
2023
Q3 		– Sell
-80,948
Closed -$1.66M – 450
2023
Q2 		$1.66M Sell
80,948
-290,844
-78% -$5.88M 0.04% 236
2023
Q1 		$7.86M Sell
371,792
-1,497,434
-80% -$34.1M 0.15% 120
2022
Q4 		$39.4M Sell
1,869,226
-173,060
-8% -$3.58M 0.67% 32
2022
Q3 		$40M Sell
2,042,286
-522,434
-20% -$14M 0.56% 33
2022
Q2 		$79.8M Buy
2,564,720
+922,292
+56% +$28.8M 0.83% 23
2022
Q1 		$55.5M Buy
1,642,428
+542,668
+49% +$19.4M 0.59% 32
2021
Q4 		$46.3M Buy
1,099,760
+535,891
+95% +$21.1M 0.47% 36
2021
Q3 		$23.1M Sell
563,869
-113,950
-17% -$4.45M 0.23% 82
2021
Q2 		$24.1M Sell
677,819
-499,713
-42% -$16.2M 0.23% 79
2021
Q1 		$34.1M Buy
1,177,532
+710,000
+152% +$20.5M 0.33% 51
2020
Q4 		$13.2M Buy
467,532
+5,951
+1% +$153K 0.19% 118
2020
Q3 		$10.4M Buy
461,581
+441,954
+2,252% +$9.19M 0.18% 141
2020
Q2 		$334K Sell
19,627
-204,258
-91% -$3.32M 0.01% 324
2020
Q1 		$2.8M Sell
223,885
-54,452
-20% -$873K 0.07% 137
2019
Q4 		$5.05M Sell
278,337
-71,737
-20% -$1.14M 0.11% 121
2019
Q3 		$5.15M Buy
+350,074
New +$5.93M 0.13% 103

Other funds holding AVTR

Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
GA
Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
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
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

Magnetar Financial's AVTR Position: Q2 2026 in Review

Magnetar Financial reduced its Avantor (AVTR) stake by 91% in Q2 2026, selling an estimated $1.75M and leaving 21,017 shares worth $208K. The position accounts for ﹤0.01% of the portfolio, ranked #929.

Magnetar Financial first reported a position in AVTR in Q3 2019 and has held it in 21 quarters since. The position peaked at $79.8M in Q2 2022. 460 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

  • Magnetar Financial held 21,017 shares of Avantor worth $208K as of Q2 2026.
  • Magnetar Financial sold 203,067 Avantor shares in Q2 2026, an estimated $1.75M.
  • Avantor made up ﹤0.01% of Magnetar Financial's portfolio in Q2 2026, its #929 holding.
  • Magnetar Financial first reported a position in Avantor in Q3 2019 and has held it in 21 quarters since.
  • Magnetar Financial's Avantor position peaked at $79.8M in Q2 2022.
  • 460 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.