Sectoral Asset Management’s Spark Therapeutics, Inc. Common Stock ONCE Stock Holding History

Sectoral Asset 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
2019 Q2	–	Sell	-3,554	Closed	-$405K	–	109
2019 Q1	$405K	Buy	+3,554	New	+$261K	0.05%	79
2018 Q1	–	Sell	-83,390	Closed	-$4.29M	–	79
2017 Q4	$4.29M	Sell	83,390 -33,209	-28%	-$2.39M	0.54%	46
2017 Q3	$10.4M	Buy	116,599 +15,299	+15%	+$1.16M	1.34%	31
2017 Q2	$6.05M	Buy	+101,300	New	+$5.66M	0.66%	41

Other funds holding ONCE

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

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

Magnetar Financial Evanston, Illinois $11B AUM 3.37% 1-Year Est. Return

Casdin Capital New York $2B AUM 147.21% 1-Year Est. Return

AAM

Alpine Associates Management Palm Beach, Florida $1.6B AUM 93.19% 1-Year Est. Return

PCM

Pentwater Capital Management Naples, Florida $16.4B AUM 55.44% 1-Year Est. Return

FCM

Farallon Capital Management San Francisco, California $21.7B AUM 79.24% 1-Year Est. Return

Paulson & Co New York $2.58B AUM 68.51% 1-Year Est. Return

BBA

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

Sectoral Asset Management's ONCE Position: Q2 2019 in Review

Sectoral Asset Management sold out of Spark Therapeutics, Inc. Common Stock (ONCE) in Q2 2019, closing a stake of 3,554 shares — an estimated $405K sold.

Sectoral Asset Management first reported a position in ONCE in Q2 2017 and held it in 4 quarters. The position peaked at $10.4M in Q3 2017. 194 funds tracked by Wall St. Rank hold ONCE as of Q2 2019.

Sectoral Asset Management reported no remaining Spark Therapeutics, Inc. Common Stock position as of Q2 2019 after selling out during the quarter.
Sectoral Asset Management sold 3,554 Spark Therapeutics, Inc. Common Stock shares in Q2 2019, an estimated $405K.
Sectoral Asset Management first reported a position in Spark Therapeutics, Inc. Common Stock in Q2 2017 and held it in 4 quarters.
Sectoral Asset Management's Spark Therapeutics, Inc. Common Stock position peaked at $10.4M in Q3 2017.
194 funds tracked by Wall St. Rank held Spark Therapeutics, Inc. Common Stock as of Q2 2019.

Based on Sectoral Asset Management's 13F filing for Q2 2019, filed 14 Aug 2019.