T. Rowe Price Associates’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

T. Rowe Price Associates’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	-5,353,933	Closed	-$271M	–	3098
2024 Q4	$271M	Sell	5,353,933 -3,855,566	-42%	-$180M	0.03%	368
2024 Q3	$359M	Buy	9,209,499 +376,324	+4%	+$14.5M	0.04%	334
2024 Q2	$323M	Sell	8,833,175 -3,935	-0%	-$154K	0.04%	335
2024 Q1	$394M	Buy	8,837,110 +22,840	+0.3%	+$903K	0.05%	312
2023 Q4	$339M	Buy	8,814,270 +3,339,736	+61%	+$116M	0.05%	319
2023 Q3	$170M	Buy	5,474,534 +425,467	+8%	+$15.1M	0.03%	420
2023 Q2	$191M	Sell	5,049,067 -3,252,360	-39%	-$101M	0.03%	398
2023 Q1	$237M	Sell	8,301,427 -727,250	-8%	-$22M	0.04%	351
2022 Q4	$256M	Buy	9,028,677 +58,410	+0.7%	+$1.61M	0.04%	332
2022 Q3	$211M	Sell	8,970,267 -162,248	-2%	-$4.36M	0.03%	350
2022 Q2	$209M	Sell	9,132,515 -311,581	-3%	-$8.27M	0.03%	469
2022 Q1	$288M	Buy	9,444,096 +406,076	+4%	+$13.5M	0.03%	432
2021 Q4	$357M	Sell	9,038,020 -17,845	-0.2%	-$653K	0.03%	413
2021 Q3	$285M	Buy	9,055,865 +829,173	+10%	+$27.1M	0.03%	456
2021 Q2	$282M	Buy	8,226,692 +196,157	+2%	+$6.18M	0.03%	468
2021 Q1	$221M	Sell	8,030,535 -136,089	-2%	-$3.42M	0.02%	529
2020 Q4	$161M	Buy	8,166,624 +2,531,788	+45%	+$47M	0.02%	578
2020 Q3	$91.6M	Buy	5,634,836 +1,106,377	+24%	+$17.7M	0.01%	679
2020 Q2	$71.6M	Buy	4,528,459 +52,839	+1%	+$758K	0.01%	730
2020 Q1	$66M	Buy	4,475,620 +858,091	+24%	+$16.7M	0.01%	699
2019 Q4	$85M	Sell	3,617,529 -400,090	-10%	-$9.08M	0.01%	718
2019 Q3	$87.7M	Sell	4,017,619 -51,049	-1%	-$1.01M	0.01%	658
2019 Q2	$77M	Sell	4,068,668 -119,683	-3%	-$1.9M	0.01%	722
2019 Q1	$65.4M	Buy	4,188,351 +746,975	+22%	+$11.7M	0.01%	769
2018 Q4	$42M	Buy	3,441,376 +3,409,781	+10,792%	+$47.1M	0.01%	886
2018 Q3	$565K	Buy	31,595 +269	+0.9%	+$5.85K	﹤0.01%	2104
2018 Q2	$809K	Buy	31,326 +6,568	+27%	+$183K	﹤0.01%	1931
2018 Q1	$737K	Buy	24,758 +218	+0.9%	+$6.72K	﹤0.01%	1916
2017 Q4	$759K	Sell	24,540 -21	-0.1%	-$632	﹤0.01%	1914
2017 Q3	$763K	Hold	24,561	–	–	﹤0.01%	1905
2017 Q2	$688K	Buy	24,561 +8	+0%	+$208	﹤0.01%	1933
2017 Q1	$588K	Buy	24,553 +98	+0.4%	+$2.3K	﹤0.01%	1999
2016 Q4	$564K	Sell	24,455 -2	-0%	-$42	﹤0.01%	1998
2016 Q3	$435K	Buy	24,457 +2,087	+9%	+$40.4K	﹤0.01%	2071
2016 Q2	$439K	Buy	+22,370	New	+$447K	﹤0.01%	2013

Other funds holding SUM

SFCL

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

Principal Securities Des Moines, Iowa $6.82B AUM 17.15% 1-Year Est. Return

DekaBank Deutsche Girozentrale Frankfurt, Germany $60.6B AUM 23.27% 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

T. Rowe Price Associates's SUM Position: Q1 2025 in Review

T. Rowe Price Associates sold out of Summit Materials, Inc. Class A Common Stock (SUM) in Q1 2025, closing a stake of 5,353,933 shares — an estimated $271M sold.

T. Rowe Price Associates first reported a position in SUM in Q2 2016 and held it in 35 quarters. The position peaked at $394M in Q1 2024. 7 funds tracked by Wall St. Rank hold SUM as of Q1 2025.

T. Rowe Price Associates reported no remaining Summit Materials, Inc. Class A Common Stock position as of Q1 2025 after selling out during the quarter.
T. Rowe Price Associates sold 5,353,933 Summit Materials, Inc. Class A Common Stock shares in Q1 2025, an estimated $271M.
T. Rowe Price Associates first reported a position in Summit Materials, Inc. Class A Common Stock in Q2 2016 and held it in 35 quarters.
T. Rowe Price Associates's Summit Materials, Inc. Class A Common Stock position peaked at $394M in Q1 2024.
7 funds tracked by Wall St. Rank held Summit Materials, Inc. Class A Common Stock as of Q1 2025.

Based on T. Rowe Price Associates's 13F filing for Q1 2025, filed 14 May 2025.