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Brown Brothers Harriman & Co’s Avantor AVTR Stock Holding History

Brown Brothers Harriman & Co’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
-50,000
Closed -$573K – 1809
2025
Q4 		$573K Buy
50,000
+11,500
+30% +$142K ﹤0.01% 495
2025
Q3 		$480K Sell
38,500
-2,901,165
-99% -$37.4M ﹤0.01% 491
2025
Q2 		$39.6M Buy
2,939,665
+13,850
+0.5% +$190K 0.25% 75
2025
Q1 		$47.4M Buy
2,925,815
+4,050
+0.1% +$76.7K 0.33% 57
2024
Q4 		$61.6M Buy
2,921,765
+7,800
+0.3% +$175K 0.43% 43
2024
Q3 		$75.4M Sell
2,913,965
-437,848
-13% -$10.7M 0.51% 35
2024
Q2 		$71.1M Buy
3,351,813
+600
+0% +$14.4K 0.54% 35
2024
Q1 		$85.7M Sell
3,351,213
-239,453
-7% -$5.7M 0.66% 34
2023
Q4 		$82M Sell
3,590,666
-1,418,375
-28% -$29.1M 0.68% 31
2023
Q3 		$106M Sell
5,009,041
-1,045,509
-17% -$22.2M 0.93% 29
2023
Q2 		$124M Hold
6,054,550
– – 1% 33
2023
Q1 		$128M Sell
6,054,550
-380,511
-6% -$8.67M 1.07% 31
2022
Q4 		$136M Sell
6,435,061
-20
-0% -$414 1.19% 31
2022
Q3 		$126M Buy
6,435,081
+443,058
+7% +$11.9M 1.17% 33
2022
Q2 		$186M Buy
5,992,023
+625
+0% +$19.5K 1.59% 26
2022
Q1 		$203M Hold
5,991,398
– – 1.43% 29
2021
Q4 		$252M Sell
5,991,398
-2,829,996
-32% -$112M 1.42% 29
2021
Q3 		$361M Sell
8,821,394
-322,685
-4% -$12.6M 2.13% 12
2021
Q2 		$325M Hold
9,144,079
– – 1.91% 13
2021
Q1 		$265M Sell
9,144,079
-2,605
-0% -$75.2K 1.68% 22
2020
Q4 		$257M Buy
9,146,684
+4,498
+0% +$116K 1.72% 25
2020
Q3 		$206M Sell
9,142,186
-473
-0% -$9.84K 1.47% 28
2020
Q2 		$155M Buy
9,142,659
+2,268,106
+33% +$36.9M 1.17% 31
2020
Q1 		$85.9M Buy
+6,874,553
New +$110M 0.7% 31

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
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 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 $33B AUM 40.62% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
ECM
Engine Capital Management New York $1.03B AUM 4.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Brown Brothers Harriman & Co's AVTR Position: Q1 2026 in Review

Brown Brothers Harriman & Co sold out of Avantor (AVTR) in Q1 2026, closing a stake of 50,000 shares — an estimated $573K sold.

Brown Brothers Harriman & Co first reported a position in AVTR in Q1 2020 and held it in 24 quarters. The position peaked at $361M in Q3 2021. 433 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

  • Brown Brothers Harriman & Co reported no remaining Avantor position as of Q1 2026 after selling out during the quarter.
  • Brown Brothers Harriman & Co sold 50,000 Avantor shares in Q1 2026, an estimated $573K.
  • Brown Brothers Harriman & Co first reported a position in Avantor in Q1 2020 and held it in 24 quarters.
  • Brown Brothers Harriman & Co's Avantor position peaked at $361M in Q3 2021.
  • 433 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

Based on Brown Brothers Harriman & Co's 13F filing for Q1 2026, filed 14 May 2026.