BlackRock Fund Advisors’s Spark Therapeutics, Inc. Common Stock ONCE Stock Holding History

BlackRock Fund Advisors’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	$50.3M	Buy	1,007,040 +112,525	+13%	+$6.03M	0.01%	1686
2016 Q3	$53.7M	Buy	894,515 +135,009	+18%	+$7.78M	0.01%	1524
2016 Q2	$38.8M	Buy	759,506 +194,041	+34%	+$8.29M	0.01%	1657
2016 Q1	$16.7M	Buy	565,465 +77,030	+16%	+$2.43M	﹤0.01%	2084
2015 Q4	$22.1M	Buy	488,435 +296,603	+155%	+$15.5M	0.01%	1983
2015 Q3	$8.01M	Sell	191,832 -1,983	-1%	-$103K	﹤0.01%	2514
2015 Q2	$11.7M	Sell	193,815 -9,476	-5%	-$627K	﹤0.01%	2417
2015 Q1	$15.8M	Buy	+203,291	New	+$11.7M	﹤0.01%	2193

Other funds holding ONCE

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

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

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Federated Hermes Pittsburgh, Pennsylvania $69.6B AUM 42.52% 1-Year Est. Return

BBA

Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

SMV

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

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return

BlackRock Fund Advisors's ONCE Position: Q4 2016 in Review

BlackRock Fund Advisors increased its Spark Therapeutics, Inc. Common Stock (ONCE) stake by 13% in Q4 2016, buying an estimated $6.03M and bringing the position to 1,007,040 shares worth $50.3M. The position accounts for 0.01% of the portfolio, ranked #1686.

BlackRock Fund Advisors first reported a position in ONCE in Q1 2015 and has held it in 8 quarters since. The position peaked at $53.7M in Q3 2016. 119 funds tracked by Wall St. Rank hold ONCE as of Q4 2016.

BlackRock Fund Advisors held 1,007,040 shares of Spark Therapeutics, Inc. Common Stock worth $50.3M as of Q4 2016.
BlackRock Fund Advisors bought 112,525 Spark Therapeutics, Inc. Common Stock shares in Q4 2016, an estimated $6.03M.
Spark Therapeutics, Inc. Common Stock made up 0.01% of BlackRock Fund Advisors's portfolio in Q4 2016, its #1686 holding.
BlackRock Fund Advisors first reported a position in Spark Therapeutics, Inc. Common Stock in Q1 2015 and has held it in 8 quarters since.
BlackRock Fund Advisors's Spark Therapeutics, Inc. Common Stock position peaked at $53.7M in Q3 2016.
119 funds tracked by Wall St. Rank held Spark Therapeutics, Inc. Common Stock as of Q4 2016.

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