Quantitative Systematic Strategies’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q1	–	Sell	-17,506	Closed	-$346K	–	791
2020 Q4	$346K	Buy	+17,506	New	+$325K	0.05%	461
2020 Q1	–	Sell	-16,671	Closed	-$392K	–	571
2019 Q4	$392K	Buy	+16,671	New	+$378K	0.06%	380
2019 Q1	–	Sell	-32,240	Closed	-$393K	–	677
2018 Q4	$393K	Buy	+32,240	New	+$446K	0.09%	328
2018 Q3	–	Sell	-12,103	Closed	-$312K	–	818
2018 Q2	$312K	Buy	+12,103	New	+$337K	0.06%	456
2017 Q3	–	Sell	-16,559	Closed	-$459K	–	572
2017 Q2	$459K	Sell	16,559 -592	-3%	-$15.4K	0.12%	235
2017 Q1	$410K	Buy	+17,151	New	+$402K	0.12%	225
2016 Q4	–	Sell	-12,999	Closed	-$237K	–	437
2016 Q3	$237K	Buy	+12,999	New	+$252K	0.09%	308
2016 Q1	–	Sell	-15,841	Closed	-$305K	–	807
2015 Q4	$305K	Buy	+15,841	New	+$323K	0.08%	509