Columbia Partners Investment Management’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Columbia Partners Investment Management’s Portfolio SUM Stock Details SUM Fund Activity

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Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q3	–	Sell
2016 Q2	$4.46M	Buy
2015 Q3	–	Sell
2015 Q2	$2.81M	Sell
2015 Q1	$3.61M	Buy