BAMCO Inc’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	-254,250	Closed	-$5.02M	–	410
2020 Q4	$5.02M	Sell	254,250 -610,200	-71%	-$11.3M	0.01%	299
2020 Q3	$14.1M	Sell	864,450 -406,800	-32%	-$6.51M	0.04%	219
2020 Q2	$20.1M	Sell	1,271,250 -355,950	-22%	-$5.1M	0.07%	171
2020 Q1	$24M	Hold	1,627,200	–	–	0.12%	130
2019 Q4	$38.2M	Sell	1,627,200 -152,550	-9%	-$3.46M	0.15%	125
2019 Q3	$38.9M	Hold	1,779,750	–	–	0.16%	119
2019 Q2	$33.7M	Sell	1,779,750 -254,250	-13%	-$4.04M	0.14%	138
2019 Q1	$31.7M	Sell	2,034,000 -559,350	-22%	-$8.75M	0.13%	145
2018 Q4	$31.6M	Sell	2,593,350 -389,375	-13%	-$5.38M	0.16%	132
2018 Q3	$53.3M	Sell	2,982,725 -534,511	-15%	-$11.6M	0.22%	108
2018 Q2	$90.8M	Buy	3,517,236 +281,385	+9%	+$7.84M	0.4%	59
2018 Q1	$96.3M	Buy	3,235,851 +112,023	+4%	+$3.46M	0.44%	57
2017 Q4	$96.6M	Sell	3,123,828 -36,094	-1%	-$1.09M	0.45%	56
2017 Q3	$98.1M	Buy	3,159,922 +257,810	+9%	+$7.32M	0.47%	56
2017 Q2	$81.2M	Buy	2,902,112 +478,703	+20%	+$12.5M	0.42%	56
2017 Q1	$58.1M	Hold	2,423,409	–	–	0.31%	81
2016 Q4	$55.9M	Sell	2,423,409 -29,081	-1%	-$610K	0.31%	77
2016 Q3	$43.6M	Hold	2,452,490	–	–	0.23%	106
2016 Q2	$48.1M	Hold	2,452,490	–	–	0.26%	91
2016 Q1	$45.7M	Sell	2,452,490 -1,428,242	-37%	-$23.4M	0.24%	100
2015 Q4	$74.5M	Buy	3,880,732 +125,232	+3%	+$2.55M	0.35%	77
2015 Q3	$66.5M	Buy	3,755,500 +2,219,563	+145%	+$51.1M	0.3%	85
2015 Q2	$37M	Buy	1,535,937 +211,853	+16%	+$5.03M	0.15%	162
2015 Q1	$27.7M	Buy	+1,324,084	New	+$26.9M	0.11%	183