William Blair Investment Management
AVTR icon

William Blair Investment Management’s Avantor AVTR Stock Holding History

William Blair Investment Management’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
2025
Q3 		– Sell
-22,225
Closed -$299K – 417
2025
Q2 		$299K Sell
22,225
-4,410,817
-99% -$60.4M ﹤0.01% 399
2025
Q1 		$71.9M Sell
4,433,042
-315,873
-7% -$5.98M 0.2% 122
2024
Q4 		$100M Sell
4,748,915
-116,501
-2% -$2.62M 0.24% 116
2024
Q3 		$126M Buy
4,865,416
+3,811,333
+362% +$93.6M 0.31% 105
2024
Q2 		$22.3M Buy
1,054,083
+6,351
+0.6% +$153K 0.06% 287
2024
Q1 		$26.8M Buy
1,047,732
+322,985
+45% +$7.68M 0.07% 270
2023
Q4 		$16.5M Sell
724,747
-75,734
-9% -$1.55M 0.05% 306
2023
Q3 		$16.9M Buy
800,481
+78,615
+11% +$1.67M 0.06% 292
2023
Q2 		$14.8M Buy
721,866
+106,653
+17% +$2.16M 0.05% 304
2023
Q1 		$13M Buy
+615,213
New +$14M 0.05% 305

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ECM
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GA
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Invesco
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CCP
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