Twin Securities’s Spark Therapeutics, Inc. Common Stock ONCE Stock Holding History

Twin Securities’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 Q4	–	Sell	-290,793	Closed	-$28.2M	–	16
2019 Q3	$28.2M	Sell	290,793 -29,860	-9%	-$2.99M	17%	2
2019 Q2	$32.8M	Buy	320,653 +255,653	+393%	+$27.6M	11.88%	3
2019 Q1	$7.4M	Buy	+65,000	New	+$4.78M	3.93%	9

Twin Securities's ONCE Position: Q4 2019 in Review

Twin Securities sold out of Spark Therapeutics, Inc. Common Stock (ONCE) in Q4 2019, closing a stake of 290,793 shares — an estimated $28.2M sold.

Twin Securities first reported a position in ONCE in Q1 2019 and held it in 3 quarters. The position peaked at $32.8M in Q2 2019. 0 funds tracked by Wall St. Rank hold ONCE as of Q4 2019.

Twin Securities reported no remaining Spark Therapeutics, Inc. Common Stock position as of Q4 2019 after selling out during the quarter.
Twin Securities sold 290,793 Spark Therapeutics, Inc. Common Stock shares in Q4 2019, an estimated $28.2M.
Twin Securities first reported a position in Spark Therapeutics, Inc. Common Stock in Q1 2019 and held it in 3 quarters.
Twin Securities's Spark Therapeutics, Inc. Common Stock position peaked at $32.8M in Q2 2019.
0 funds tracked by Wall St. Rank held Spark Therapeutics, Inc. Common Stock as of Q4 2019.

Based on Twin Securities's 13F filing for Q4 2019, filed 14 Feb 2020.