BlackRock Advisors’s Summit Materials, Inc. Class A Common Stock SUM Stock Holding History

BlackRock Advisors’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
2016 Q4	$2.39M	Buy	103,565 +13,681	+15%	+$287K	﹤0.01%	1423
2016 Q3	$1.6M	Sell	89,884 -7,837	-8%	-$152K	﹤0.01%	1579
2016 Q2	$1.92M	Sell	97,721 -26,532	-21%	-$530K	﹤0.01%	1448
2016 Q1	$2.32M	Buy	124,253 +53,266	+75%	+$871K	﹤0.01%	1369
2015 Q4	$1.36M	Buy	70,987 +51,238	+259%	+$1.04M	﹤0.01%	1576
2015 Q3	$350K	Buy	19,749 +6,065	+44%	+$140K	﹤0.01%	2433
2015 Q2	$329K	Buy	+13,684	New	+$325K	﹤0.01%	2482

Other funds holding SUM

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

Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return

JHIU

Janus Henderson Investors US Denver, Colorado $122B AUM 18.26% 1-Year Est. Return

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

MCM

Melvin Capital Management New York $9.86B AUM 16.31% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return

LCS

Levin Capital Strategies New York $1.32B AUM 28.11% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $303B AUM 30.15% 1-Year Est. Return

BIT

BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return

BlackRock Advisors's SUM Position: Q4 2016 in Review

BlackRock Advisors increased its Summit Materials, Inc. Class A Common Stock (SUM) stake by 15% in Q4 2016, buying an estimated $287K and bringing the position to 103,565 shares worth $2.39M. The position accounts for ﹤0.01% of the portfolio, ranked #1423.

BlackRock Advisors first reported a position in SUM in Q2 2015 and has held it in 7 quarters since. 197 funds tracked by Wall St. Rank hold SUM as of Q4 2016.

BlackRock Advisors held 103,565 shares of Summit Materials, Inc. Class A Common Stock worth $2.39M as of Q4 2016.
BlackRock Advisors bought 13,681 Summit Materials, Inc. Class A Common Stock shares in Q4 2016, an estimated $287K.
Summit Materials, Inc. Class A Common Stock made up ﹤0.01% of BlackRock Advisors's portfolio in Q4 2016, its #1423 holding.
BlackRock Advisors first reported a position in Summit Materials, Inc. Class A Common Stock in Q2 2015 and has held it in 7 quarters since.
197 funds tracked by Wall St. Rank held Summit Materials, Inc. Class A Common Stock as of Q4 2016.

Based on BlackRock Advisors's 13F filing for Q4 2016, filed 10 Feb 2017.