BlackRock Group’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

BlackRock Group’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 Q4	$2.41M	Buy
2016 Q3	$734K	Sell
2016 Q2	$1.21M	Buy
2016 Q1	$1.06M	Buy
2015 Q4	$567K	Buy
2015 Q3	–	Sell
2015 Q2	$834K	Sell
2015 Q1	$2.59M	Buy