Lombard Odier Asset Management (USA)’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Lombard Odier Asset Management (USA)’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
2017 Q2	–	Sell
2017 Q1	$8.03M	Buy
2016 Q4	$5.49M	Sell
2016 Q3	$12.1M	Buy