Mason Hawkins’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Mason Hawkins’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
2020 Q4	–	Sell	-331,102	Closed	-$5.38M	–	29
2020 Q3	$5.38M	Buy	+331,102	New	+$5.3M	0.14%	25
2019 Q4	–	Sell	-13,038,417	Closed	-$285M	–	31
2019 Q3	$285M	Hold	13,038,417	–	–	4.96%	8
2019 Q2	$247M	Hold	13,038,417	–	–	4.05%	9
2019 Q1	$203M	Hold	13,038,417	–	–	2.93%	13
2018 Q4	$159M	Buy	13,038,417 +3,629,891	+39%	+$50.2M	2.27%	16
2018 Q3	$168M	Buy	+9,408,526	New	+$205M	2.02%	15

Other funds holding SUM

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

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return

Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return

Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Macquarie Group Sydney, NSW 2000, Australia $23.2B AUM 40.19% 1-Year Est. Return

Mason Hawkins's SUM Position: Q4 2020 in Review

Mason Hawkins sold out of Summit Materials, Inc. Class A Common Stock (SUM) in Q4 2020, closing a stake of 331,102 shares — an estimated $5.38M sold.

Mason Hawkins first reported a position in SUM in Q3 2018 and held it in 6 quarters. The position peaked at $285M in Q3 2019. 218 funds tracked by Wall St. Rank hold SUM as of Q4 2020.

Mason Hawkins reported no remaining Summit Materials, Inc. Class A Common Stock position as of Q4 2020 after selling out during the quarter.
Mason Hawkins sold 331,102 Summit Materials, Inc. Class A Common Stock shares in Q4 2020, an estimated $5.38M.
Mason Hawkins first reported a position in Summit Materials, Inc. Class A Common Stock in Q3 2018 and held it in 6 quarters.
Mason Hawkins's Summit Materials, Inc. Class A Common Stock position peaked at $285M in Q3 2019.
218 funds tracked by Wall St. Rank held Summit Materials, Inc. Class A Common Stock as of Q4 2020.

Based on Southeastern Asset Management's 13F filing for Q4 2020, filed 16 Feb 2021.