Dmitry Balyasny’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Dmitry Balyasny’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	-1,617,153	Closed	-$81.8M	–	3411
2024 Q4	$81.8M	Buy	+1,617,153	New	+$75.6M	0.12%	189
2023 Q3	–	Sell	-49,917	Closed	-$1.89M	–	2826
2023 Q2	$1.89M	Buy	+49,917	New	+$1.55M	﹤0.01%	1393
2023 Q1	–	Sell	-3,678	Closed	-$104K	–	3254
2022 Q4	$104K	Sell	3,678 -40,926	-92%	-$1.13M	﹤0.01%	2247
2022 Q3	$1.05M	Sell	44,604 -103,611	-70%	-$2.78M	﹤0.01%	1773
2022 Q2	$3.39M	Sell	148,215 -375,336	-72%	-$9.97M	0.01%	1116
2022 Q1	$16M	Buy	523,551 +212,290	+68%	+$7.07M	0.05%	512
2021 Q4	$12.3M	Buy	311,261 +97,612	+46%	+$3.57M	0.04%	575
2021 Q3	$6.72M	Buy	213,649 +115,612	+118%	+$3.77M	0.03%	720
2021 Q2	$3.36M	Buy	+98,037	New	+$3.09M	0.02%	842
2021 Q1	–	Sell	-65,666	Closed	-$1.3M	–	2141
2020 Q4	$1.3M	Buy	+65,666	New	+$1.22M	0.01%	966
2020 Q1	–	Sell	-112,776	Closed	-$2.65M	–	1594
2019 Q4	$2.65M	Buy	+112,776	New	+$2.56M	0.02%	705
2019 Q3	–	Sell	-113,084	Closed	-$2.14M	–	1684
2019 Q2	$2.14M	Buy	+113,084	New	+$1.8M	0.01%	858
2018 Q2	–	Sell	-12,173	Closed	-$362K	–	2219
2018 Q1	$362K	Buy	+12,173	New	+$376K	﹤0.01%	1556
2017 Q3	–	Sell	-211,404	Closed	-$5.92M	–	2132
2017 Q2	$5.92M	Buy	+211,404	New	+$5.5M	0.02%	710
2017 Q1	–	Sell	-520,375	Closed	-$12M	–	1828
2016 Q4	$12M	Buy	+520,375	New	+$10.9M	0.06%	424

Other funds holding SUM

SFCL

Strengthening Families & Communities LLC Boston, Massachusetts $450M AUM 41.19% 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 $20.6B AUM 34.61% 1-Year Est. Return

Dmitry Balyasny's SUM Position: Q1 2025 in Review

Dmitry Balyasny sold out of Summit Materials, Inc. Class A Common Stock (SUM) in Q1 2025, closing a stake of 1,617,153 shares — an estimated $81.8M sold.

Dmitry Balyasny first reported a position in SUM in Q4 2016 and held it in 15 quarters. The position peaked at $81.8M in Q4 2024. 7 funds tracked by Wall St. Rank hold SUM as of Q1 2025.

Dmitry Balyasny reported no remaining Summit Materials, Inc. Class A Common Stock position as of Q1 2025 after selling out during the quarter.
Dmitry Balyasny sold 1,617,153 Summit Materials, Inc. Class A Common Stock shares in Q1 2025, an estimated $81.8M.
Dmitry Balyasny first reported a position in Summit Materials, Inc. Class A Common Stock in Q4 2016 and held it in 15 quarters.
Dmitry Balyasny's Summit Materials, Inc. Class A Common Stock position peaked at $81.8M in Q4 2024.
7 funds tracked by Wall St. Rank held Summit Materials, Inc. Class A Common Stock as of Q1 2025.

Based on Balyasny Asset Management's 13F filing for Q1 2025, filed 15 May 2025.