Boston Partners
AVTR icon

Boston Partners’s Avantor AVTR Stock Holding History

Boston Partners’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
Q1 		– Sell
-433,421
Closed -$4.97M – 775
2025
Q4 		$4.97M Buy
+433,421
New +$5.33M 0.01% 472
2025
Q2 		– Sell
-51,472
Closed -$834K – 713
2025
Q1 		$834K Sell
51,472
-6,370,996
-99% -$121M ﹤0.01% 578
2024
Q4 		$135M Sell
6,422,468
-12,704,887
-66% -$286M 0.16% 176
2024
Q3 		$494M Sell
19,127,355
-104,570
-0.5% -$2.57M 0.58% 54
2024
Q2 		$408M Sell
19,231,925
-9,329,877
-33% -$225M 0.51% 63
2024
Q1 		$729M Buy
28,561,802
+624,369
+2% +$14.9M 0.87% 15
2023
Q4 		$637M Sell
27,937,433
-139,593
-0.5% -$2.86M 0.84% 17
2023
Q3 		$588M Buy
28,077,026
+4,948,951
+21% +$105M 0.81% 23
2023
Q2 		$475M Buy
23,128,075
+6,736,666
+41% +$136M 0.64% 46
2023
Q1 		$346M Sell
16,391,409
-1,468,514
-8% -$33.5M 0.48% 73
2022
Q4 		$378M Sell
17,859,923
-2,374,994
-12% -$49.2M 0.51% 65
2022
Q3 		$396M Sell
20,234,917
-2,471,901
-11% -$66.2M 0.58% 54
2022
Q2 		$705M Buy
22,706,818
+2,934,878
+15% +$91.6M 0.99% 15
2022
Q1 		$668M Buy
19,771,940
+806,442
+4% +$28.8M 0.81% 33
2021
Q4 		$798M Sell
18,965,498
-615,160
-3% -$24.2M 0.96% 17
2021
Q3 		$801M Sell
19,580,658
-1,653,951
-8% -$64.6M 1.01% 13
2021
Q2 		$754M Buy
21,234,609
+3,120,341
+17% +$101M 0.96% 15
2021
Q1 		$525M Buy
18,114,268
+381,330
+2% +$11M 0.7% 41
2020
Q4 		$499M Sell
17,732,938
-1,272,443
-7% -$32.8M 0.78% 34
2020
Q3 		$427M Buy
19,005,381
+1,569,620
+9% +$32.6M 0.78% 36
2020
Q2 		$296M Buy
17,435,761
+8,157,812
+88% +$133M 0.54% 59
2020
Q1 		$116M Buy
9,277,949
+556,523
+6% +$8.92M 0.23% 132
2019
Q4 		$158M Sell
8,721,426
-200,690
-2% -$3.19M 0.21% 138
2019
Q3 		$131M Buy
8,922,116
+210,519
+2% +$3.57M 0.18% 161
2019
Q2 		$166M Buy
+8,711,597
New +$155M 0.22% 140

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 $6.07B AUM 11.2% 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

Boston Partners's AVTR Position: Q1 2026 in Review

Boston Partners sold out of Avantor (AVTR) in Q1 2026, closing a stake of 433,421 shares — an estimated $4.97M sold.

Boston Partners first reported a position in AVTR in Q2 2019 and held it in 25 quarters. The position peaked at $801M in Q3 2021. 429 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

  • Boston Partners reported no remaining Avantor position as of Q1 2026 after selling out during the quarter.
  • Boston Partners sold 433,421 Avantor shares in Q1 2026, an estimated $4.97M.
  • Boston Partners first reported a position in Avantor in Q2 2019 and held it in 25 quarters.
  • Boston Partners's Avantor position peaked at $801M in Q3 2021.
  • 429 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

Based on Boston Partners's 13F filing for Q1 2026, filed 11 May 2026.