Harbor Capital Advisors’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-390	Closed	-$20K	–	1570
2024 Q4	$20K	Buy	390 +51	+15%	+$2.62K	﹤0.01%	817
2024 Q3	$13K	Buy	+339	New	+$13K	﹤0.01%	901
2023 Q3	–	Sell	-1,006	Closed	-$38.1K	–	663
2023 Q2	$38.1K	Buy	+1,006	New	+$38.1K	0.01%	521