BlackRock Investment Management’s Spark Therapeutics, Inc. Common Stock ONCE Stock Holding History

BlackRock Investment Management’s Portfolio ONCE Stock Details ONCE Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q4	$3.84M	Buy	76,945 +922	+1%	+$49.4K	﹤0.01%	1773
2016 Q3	$4.57M	Buy	76,023 +12,273	+19%	+$707K	0.01%	1546
2016 Q2	$3.26M	Buy	63,750 +32,063	+101%	+$1.37M	﹤0.01%	1747
2016 Q1	$935K	Buy	31,687 +4,568	+17%	+$144K	﹤0.01%	2529
2015 Q4	$1.23M	Buy	27,119 +7	+0%	+$367	﹤0.01%	2447
2015 Q3	$1.13M	Sell	27,112 -2,266	-8%	-$118K	﹤0.01%	2514
2015 Q2	$1.77M	Sell	29,378 -3,337	-10%	-$221K	﹤0.01%	2337
2015 Q1	$2.54M	Buy	+32,715	New	+$1.88M	﹤0.01%	1858

Other funds holding ONCE

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

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

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

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return

BBA

Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

BFA

BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return

SMV

Sofinnova Management VIII Menlo Park, California $183M AUM 4.18% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

BlackRock Investment Management's ONCE Position: Q4 2016 in Review

BlackRock Investment Management increased its Spark Therapeutics, Inc. Common Stock (ONCE) stake by 1.2% in Q4 2016, buying an estimated $49.4K and bringing the position to 76,945 shares worth $3.84M. The position accounts for ﹤0.01% of the portfolio, ranked #1773.

BlackRock Investment Management first reported a position in ONCE in Q1 2015 and has held it in 8 quarters since. The position peaked at $4.57M in Q3 2016. 119 funds tracked by Wall St. Rank hold ONCE as of Q4 2016.

BlackRock Investment Management held 76,945 shares of Spark Therapeutics, Inc. Common Stock worth $3.84M as of Q4 2016.
BlackRock Investment Management bought 922 Spark Therapeutics, Inc. Common Stock shares in Q4 2016, an estimated $49.4K.
Spark Therapeutics, Inc. Common Stock made up ﹤0.01% of BlackRock Investment Management's portfolio in Q4 2016, its #1773 holding.
BlackRock Investment Management first reported a position in Spark Therapeutics, Inc. Common Stock in Q1 2015 and has held it in 8 quarters since.
BlackRock Investment Management's Spark Therapeutics, Inc. Common Stock position peaked at $4.57M in Q3 2016.
119 funds tracked by Wall St. Rank held Spark Therapeutics, Inc. Common Stock as of Q4 2016.

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