State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Avantor AVTR Stock Holding History

State of Wisconsin Investment Board’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 		$4.17M Sell
421,230
-99,583
-19% -$857K 0.01% 1136
2026
Q1 		$4.08M Buy
520,813
+58,877
+13% +$579K 0.01% 1078
2025
Q4 		$5.29M Buy
461,936
+3,824
+0.8% +$47.1K 0.01% 979
2025
Q3 		$5.72M Buy
458,112
+88,674
+24% +$1.14M 0.01% 904
2025
Q2 		$4.97M Sell
369,438
-16,077
-4% -$220K 0.01% 933
2025
Q1 		$6.25M Buy
385,515
+10,059
+3% +$191K 0.02% 837
2024
Q4 		$7.91M Sell
375,456
-8,065
-2% -$181K 0.02% 763
2024
Q3 		$9.92M Buy
383,521
+23,573
+7% +$579K 0.02% 657
2024
Q2 		$7.63M Sell
359,948
-234,312
-39% -$5.64M 0.02% 741
2024
Q1 		$15.2M Buy
594,260
+245,416
+70% +$5.84M 0.04% 437
2023
Q4 		$7.96M Sell
348,844
-10,370
-3% -$212K 0.02% 754
2023
Q3 		$7.57M Sell
359,214
-4,423
-1% -$94.1K 0.02% 698
2023
Q2 		$7.47M Buy
363,637
+742
+0.2% +$15K 0.02% 751
2023
Q1 		$7.67M Buy
362,895
+31,342
+9% +$714K 0.02% 722
2022
Q4 		$6.99M Sell
331,553
-14,328
-4% -$297K 0.02% 749
2022
Q3 		$6.78M Sell
345,881
-66,266
-16% -$1.78M 0.02% 773
2022
Q2 		$12.8M Buy
412,147
+2,852
+0.7% +$89K 0.03% 523
2022
Q1 		$13.8M Sell
409,295
-45,137
-10% -$1.61M 0.03% 615
2021
Q4 		$19.1M Buy
454,432
+37,057
+9% +$1.46M 0.04% 499
2021
Q3 		$17.1M Buy
417,375
+14,728
+4% +$575K 0.04% 525
2021
Q2 		$14.3M Buy
402,647
+3,016
+0.8% +$97.5K 0.03% 596
2021
Q1 		$11.6M Buy
399,631
+131,906
+49% +$3.81M 0.02% 680
2020
Q4 		$7.54M Buy
267,725
+26,760
+11% +$690K 0.02% 814
2020
Q3 		$5.42M Buy
240,965
+17,200
+8% +$358K 0.01% 910
2020
Q2 		$3.8M Buy
223,765
+181,030
+424% +$2.95M 0.01% 966
2020
Q1 		$534K Sell
42,735
-2,060
-5% -$33K ﹤0.01% 1333
2019
Q4 		$813K Buy
44,795
+11,680
+35% +$186K ﹤0.01% 1290
2019
Q3 		$487K Buy
+33,115
New +$561K ﹤0.01% 1338

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

State of Wisconsin Investment Board's AVTR Position: Q2 2026 in Review

State of Wisconsin Investment Board reduced its Avantor (AVTR) stake by 19% in Q2 2026, selling an estimated $857K and leaving 421,230 shares worth $4.17M. The position accounts for 0.01% of the portfolio, ranked #1136.

State of Wisconsin Investment Board first reported a position in AVTR in Q3 2019 and has held it in 28 quarters since. The position peaked at $19.1M in Q4 2021. 459 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

  • State of Wisconsin Investment Board held 421,230 shares of Avantor worth $4.17M as of Q2 2026.
  • State of Wisconsin Investment Board sold 99,583 Avantor shares in Q2 2026, an estimated $857K.
  • Avantor made up 0.01% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #1136 holding.
  • State of Wisconsin Investment Board first reported a position in Avantor in Q3 2019 and has held it in 28 quarters since.
  • State of Wisconsin Investment Board's Avantor position peaked at $19.1M in Q4 2021.
  • 459 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.