TD Asset Management’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2017 Q3	–	Sell	-34,959	Closed	-$979K	–	1341
2017 Q2	$979K	Sell	34,959 -11,344	-24%	-$318K	﹤0.01%	1047
2017 Q1	$1.11M	Buy	+46,303	New	+$1.11M	﹤0.01%	1025