Parallax Volatility Advisers’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Parallax Volatility Advisers’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
2023 Q1	–	Sell	-99,800	Closed	-$2.83M	–	3279
2022 Q4	$2.83M	Buy	+99,800	New	+$2.75M	﹤0.01%	1263
2019 Q4	–	Sell	-4,271	Closed	-$93K	–	2700
2019 Q3	$93K	Sell	4,271 -3,967	-48%	-$78.3K	﹤0.01%	1994
2019 Q2	$155K	Buy	8,238 +7,526	+1,057%	+$120K	﹤0.01%	1776
2019 Q1	$11K	Buy	+712	New	+$11.1K	﹤0.01%	2540
2018 Q3	–	Sell	-20,340	Closed	-$525K	–	3783
2018 Q2	$525K	Buy	+20,340	New	+$567K	﹤0.01%	1262
2017 Q2	–	Sell	-2,062	Closed	-$49K	–	4278
2017 Q1	$49K	Buy	+2,062	New	+$48.4K	﹤0.01%	2620

Other funds holding SUM

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Macquarie Group Sydney, NSW 2000, Australia $16.8B AUM 27.39% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return

Parallax Volatility Advisers's SUM Position: Q1 2023 in Review

Parallax Volatility Advisers sold out of Summit Materials, Inc. Class A Common Stock (SUM) in Q1 2023, closing a stake of 31,976 shares — an estimated $908K sold.

Parallax Volatility Advisers first reported a position in SUM in Q3 2016 and held it in 14 quarters. The position peaked at $2.99M in Q3 2016. 244 funds tracked by Wall St. Rank hold SUM as of Q1 2023.

Parallax Volatility Advisers reported no remaining Summit Materials, Inc. Class A Common Stock position as of Q1 2023 after selling out during the quarter.
Parallax Volatility Advisers sold 31,976 Summit Materials, Inc. Class A Common Stock shares in Q1 2023, an estimated $908K.
Parallax Volatility Advisers first reported a position in Summit Materials, Inc. Class A Common Stock in Q3 2016 and held it in 14 quarters.
Parallax Volatility Advisers's Summit Materials, Inc. Class A Common Stock position peaked at $2.99M in Q3 2016.
244 funds tracked by Wall St. Rank held Summit Materials, Inc. Class A Common Stock as of Q1 2023.

Based on Parallax Volatility Advisers's 13F filing for Q1 2023, filed 15 May 2023.