William Blair Investment Management
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William Blair Investment Management’s Ecovyst ECVT Stock Holding History

William Blair Investment Management’s Portfolio ECVT Stock Details ECVT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		$26.4M Sell
2025
Q2 		$26.3M Sell
2025
Q1 		$21.5M Sell
2024
Q4 		$27.5M Buy
2024
Q3 		$24.2M Sell
2024
Q2 		$32.7M Sell
2024
Q1 		$40.7M Buy
2023
Q4 		$32.4M Sell
2023
Q3 		$33.2M Buy
2023
Q2 		$37.1M Buy