Paloma Partners’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Paloma Partners’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	-24,000	Closed	-$1.21M	–	296
2024 Q4	$1.21M	Buy	+24,000	New	+$1.12M	0.05%	146
2021 Q3	–	Sell	-14,013	Closed	-$480K	–	2013
2021 Q2	$480K	Buy	+14,013	New	+$442K	0.01%	1030
2020 Q4	–	Sell	-11,378	Closed	-$185K	–	2338
2020 Q3	$185K	Buy	+11,378	New	+$182K	﹤0.01%	1788
2020 Q1	–	Sell	-36,534	Closed	-$859K	–	2214
2019 Q4	$859K	Buy	+36,534	New	+$829K	0.01%	1040
2019 Q2	–	Sell	-13,526	Closed	-$211K	–	2264
2019 Q1	$211K	Buy	+13,526	New	+$211K	0.01%	1493
2018 Q4	–	Sell	-19,526	Closed	-$349K	–	1854
2018 Q3	$349K	Buy	+19,526	New	+$425K	0.01%	1167
2017 Q3	–	Sell	-12,712	Closed	-$356K	–	2508
2017 Q2	$356K	Sell	12,712 -30,943	-71%	-$806K	﹤0.01%	1722
2017 Q1	$1.05M	Buy	+43,655	New	+$1.02M	0.01%	1208

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

Paloma Partners's SUM Position: Q1 2025 in Review

Paloma Partners sold out of Summit Materials, Inc. Class A Common Stock (SUM) in Q1 2025, closing a stake of 24,000 shares — an estimated $1.21M sold.

Paloma Partners first reported a position in SUM in Q1 2017 and held it in 8 quarters. The position peaked at $1.21M in Q4 2024. 7 funds tracked by Wall St. Rank hold SUM as of Q1 2025.

Paloma Partners reported no remaining Summit Materials, Inc. Class A Common Stock position as of Q1 2025 after selling out during the quarter.
Paloma Partners sold 24,000 Summit Materials, Inc. Class A Common Stock shares in Q1 2025, an estimated $1.21M.
Paloma Partners first reported a position in Summit Materials, Inc. Class A Common Stock in Q1 2017 and held it in 8 quarters.
Paloma Partners's Summit Materials, Inc. Class A Common Stock position peaked at $1.21M in Q4 2024.
7 funds tracked by Wall St. Rank held Summit Materials, Inc. Class A Common Stock as of Q1 2025.

Based on Paloma Partners's 13F filing for Q1 2025, filed 15 May 2025.