Marshall Wace
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Marshall Wace’s White Mountains Insurance WTM Stock Holding History

Marshall Wace’s Portfolio WTM Stock Details WTM Fund Activity
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Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		$2.28M Buy
2022
Q1 		– Sell
2021
Q4 		$158K Buy
2020
Q4 		– Sell
2020
Q3 		$1.27M Buy
2019
Q1 		– Sell
2018
Q4 		$865K Buy
2017
Q1 		– Sell
2016
Q4 		$263K Buy