Bank of Montreal’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Bank of Montreal’s Portfolio SUM Stock Details SUM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-7,121	Closed	-$360K	–	3802
2024 Q4	$360K	Sell	7,121 -1	-0%	-$47	﹤0.01%	2439
2024 Q3	$276K	Hold	7,122	–	–	﹤0.01%	2832
2024 Q2	$261K	Sell	7,122 -384	-5%	-$15.1K	﹤0.01%	2821
2024 Q1	$335K	Sell	7,506 -8,311	-53%	-$329K	﹤0.01%	2714
2023 Q4	$614K	Sell	15,817 -1	-0%	-$35	﹤0.01%	2362
2023 Q3	$599K	Sell	15,818 -39	-0.2%	-$1.39K	﹤0.01%	2349
2023 Q2	$601K	Sell	15,857 -6,464	-29%	-$200K	﹤0.01%	2466
2023 Q1	$665K	Buy	22,321 +8,070	+57%	+$244K	﹤0.01%	2302
2022 Q4	$424K	Sell	14,251 -123,351	-90%	-$3.4M	﹤0.01%	2701
2022 Q3	$3.6K	Buy	137,602 +122,360	+803%	+$3.28M	﹤0.01%	1518
2022 Q2	$409	Buy	15,242 +3,496	+30%	+$92.8K	﹤0.01%	2813
2022 Q1	$366K	Buy	11,746 +1,908	+19%	+$63.6K	﹤0.01%	3066
2021 Q4	$391K	Sell	9,838 -94,680	-91%	-$3.47M	﹤0.01%	2574
2021 Q3	$3.37M	Buy	104,518 +20,087	+24%	+$656K	﹤0.01%	1823
2021 Q2	$2.92M	Sell	84,431 -28,168	-25%	-$888K	﹤0.01%	1859
2021 Q1	$3.16M	Sell	112,599 -62,095	-36%	-$1.56M	﹤0.01%	1563
2020 Q4	$4.16M	Sell	174,694 -31,220	-15%	-$580K	﹤0.01%	1493
2020 Q3	$3.61M	Sell	205,914 -6,296	-3%	-$101K	﹤0.01%	1398
2020 Q2	$3.31M	Buy	212,210 +208,451	+5,545%	+$2.99M	﹤0.01%	1373
2020 Q1	$49K	Sell	3,759 -16,897	-82%	-$328K	﹤0.01%	2901
2019 Q4	$486K	Buy	20,656 +4,413	+27%	+$100K	﹤0.01%	2686
2019 Q3	$354K	Buy	16,243 +915	+6%	+$18.1K	﹤0.01%	2614
2019 Q2	$290K	Buy	15,328 +9,676	+171%	+$154K	﹤0.01%	2729
2019 Q1	$88K	Sell	5,652 -5,463	-49%	-$85.4K	﹤0.01%	3119
2018 Q4	$136K	Buy	11,115 +3,331	+43%	+$46.1K	﹤0.01%	2787
2018 Q3	$139K	Buy	7,784 +1,989	+34%	+$43.3K	﹤0.01%	2952
2018 Q2	$149K	Buy	5,795 +2,060	+55%	+$57.4K	﹤0.01%	2917
2018 Q1	$112K	Buy	3,735 +353	+10%	+$10.9K	﹤0.01%	2909
2017 Q4	$104K	Buy	3,382 +2,547	+305%	+$76.7K	﹤0.01%	2992
2017 Q3	$26K	Hold	835	–	–	﹤0.01%	3441
2017 Q2	$23K	Sell	835 -83	-9%	-$2.16K	﹤0.01%	3492
2017 Q1	$22K	Buy	918 +635	+224%	+$14.9K	﹤0.01%	3344
2016 Q4	$7K	Buy	283 +255	+911%	+$5.35K	﹤0.01%	3694
2016 Q3	$1K	Buy	+28	New	+$542	﹤0.01%	3954
2016 Q1	–	Sell	-508,898	Closed	-$9.77M	–	4434
2015 Q4	$9.77M	Buy	508,898 +17,877	+4%	+$364K	0.01%	730
2015 Q3	$8.7M	Buy	491,021 +146,905	+43%	+$3.38M	0.01%	763
2015 Q2	$8.28M	Buy	+344,116	New	+$8.17M	0.01%	894

Other funds holding SUM

SFCL

Strengthening Families & Communities LLC Boston, Massachusetts $401M AUM 33.17% 1-Year Est. Return

Principal Securities Des Moines, Iowa $8.31B AUM 21.94% 1-Year Est. Return

DekaBank Deutsche Girozentrale Frankfurt, Germany $59.2B AUM 26.02% 1-Year Est. Return

WAM

WFA Asset Management Whitefish Bay, Wisconsin $184M AUM 12.29% 1-Year Est. Return

IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

HNB

Huntington National Bank Columbus, Ohio $18.1B AUM 24.69% 1-Year Est. Return

Bank of Montreal's SUM Position: Q1 2025 in Review

Bank of Montreal sold out of Summit Materials, Inc. Class A Common Stock (SUM) in Q1 2025, closing a stake of 7,121 shares — an estimated $360K sold.

Bank of Montreal first reported a position in SUM in Q2 2015 and held it in 37 quarters. The position peaked at $9.77M in Q4 2015. 7 funds tracked by Wall St. Rank hold SUM as of Q1 2025.

Bank of Montreal reported no remaining Summit Materials, Inc. Class A Common Stock position as of Q1 2025 after selling out during the quarter.
Bank of Montreal sold 7,121 Summit Materials, Inc. Class A Common Stock shares in Q1 2025, an estimated $360K.
Bank of Montreal first reported a position in Summit Materials, Inc. Class A Common Stock in Q2 2015 and held it in 37 quarters.
Bank of Montreal's Summit Materials, Inc. Class A Common Stock position peaked at $9.77M in Q4 2015.
7 funds tracked by Wall St. Rank held Summit Materials, Inc. Class A Common Stock as of Q1 2025.

Based on Bank of Montreal's 13F filing for Q1 2025, filed 13 May 2025.