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
2021 Q2	–	Sell	-336,627	Closed	-$9.28M	–	1805
2021 Q1	$9.28M	Buy	+336,627	New	+$8.46M	0.02%	399
2019 Q4	–	Sell	-5,288	Closed	-$114K	–	2698
2019 Q3	$114K	Sell	5,288 -1,526	-22%	-$30.1K	﹤0.01%	1957
2019 Q2	$129K	Buy	6,814 +2,949	+76%	+$46.9K	﹤0.01%	1815
2019 Q1	$60K	Buy	+3,865	New	+$60.4K	﹤0.01%	2232
2018 Q2	–	Sell	-92,240	Closed	-$2.75M	–	3524
2018 Q1	$2.75M	Buy	+92,240	New	+$2.85M	﹤0.01%	683
2016 Q4	–	Sell	-344,914	Closed	-$6.13M	–	4369
2016 Q3	$6.13M	Buy	+344,914	New	+$6.68M	0.01%	604

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.