Essex Investment Management’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

Essex Investment Management’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
2018 Q3	–	Sell	-61,081	Closed	-$1.58M	–	438
2018 Q2	$1.58M	Buy	61,081 +4,280	+8%	+$119K	0.2%	159
2018 Q1	$1.69M	Sell	56,801 -34,946	-38%	-$1.08M	0.22%	131
2017 Q4	$2.84M	Sell	91,747 -267	-0.3%	-$8.04K	0.37%	73
2017 Q3	$2.86M	Sell	92,014 -4,458	-5%	-$126K	0.39%	66
2017 Q2	$2.7M	Sell	96,472 -3,608	-4%	-$93.9K	0.39%	71
2017 Q1	$2.4M	Sell	100,080 -3,523	-3%	-$82.7K	0.38%	66
2016 Q4	$2.39M	Buy	103,603 +53,544	+107%	+$1.12M	0.39%	65
2016 Q3	$890K	Buy	+50,059	New	+$969K	0.14%	181

Other funds holding SUM

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

SAM

Southeastern Asset Management Memphis, Tennessee $2.03B AUM 7.06% 1-Year Est. Return

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

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

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

Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

TBC

Three Bays Capital Boston, Massachusetts $848M AUM 7.41% 1-Year Est. Return

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

Putnam Investments Boston, Massachusetts $75.7B AUM 34.45% 1-Year Est. Return

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

Essex Investment Management's SUM Position: Q3 2018 in Review

Essex Investment Management sold out of Summit Materials, Inc. Class A Common Stock (SUM) in Q3 2018, closing a stake of 61,081 shares — an estimated $1.58M sold.

Essex Investment Management first reported a position in SUM in Q3 2016 and held it in 8 quarters. The position peaked at $2.86M in Q3 2017. 193 funds tracked by Wall St. Rank hold SUM as of Q3 2018.

Essex Investment Management reported no remaining Summit Materials, Inc. Class A Common Stock position as of Q3 2018 after selling out during the quarter.
Essex Investment Management sold 61,081 Summit Materials, Inc. Class A Common Stock shares in Q3 2018, an estimated $1.58M.
Essex Investment Management first reported a position in Summit Materials, Inc. Class A Common Stock in Q3 2016 and held it in 8 quarters.
Essex Investment Management's Summit Materials, Inc. Class A Common Stock position peaked at $2.86M in Q3 2017.
193 funds tracked by Wall St. Rank held Summit Materials, Inc. Class A Common Stock as of Q3 2018.

Based on Essex Investment Management's 13F filing for Q3 2018, filed 16 Oct 2018.