Laurion Capital Management’s Spark Therapeutics, Inc. Common Stock ONCE Stock Holding History

Laurion Capital 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 Q4	–	Sell	-17,800	Closed	-$1.73M	–	1358
2019 Q3	$1.73M	Buy	17,800 +10,500	+144%	+$1.05M	0.01%	533
2019 Q2	$747K	Buy	+7,300	New	+$788K	0.01%	616
2017 Q4	–	Sell	-388,680	Closed	-$34.7M	–	1991
2017 Q3	$34.7M	Buy	+388,680	New	+$29.5M	0.15%	113
2016 Q3	–	Sell	-68,000	Closed	-$3.48M	–	1179
2016 Q2	$3.48M	Buy	+68,000	New	+$2.91M	0.05%	324

Laurion Capital Management's ONCE Position: Q4 2019 in Review

Laurion Capital Management sold out of Spark Therapeutics, Inc. Common Stock (ONCE) in Q4 2019, closing a stake of 17,800 shares — an estimated $1.73M sold.

Laurion Capital Management first reported a position in ONCE in Q2 2016 and held it in 4 quarters. The position peaked at $34.7M in Q3 2017. 0 funds tracked by Wall St. Rank hold ONCE as of Q4 2019.

Laurion Capital Management reported no remaining Spark Therapeutics, Inc. Common Stock position as of Q4 2019 after selling out during the quarter.
Laurion Capital Management sold 17,800 Spark Therapeutics, Inc. Common Stock shares in Q4 2019, an estimated $1.73M.
Laurion Capital Management first reported a position in Spark Therapeutics, Inc. Common Stock in Q2 2016 and held it in 4 quarters.
Laurion Capital Management's Spark Therapeutics, Inc. Common Stock position peaked at $34.7M in Q3 2017.
0 funds tracked by Wall St. Rank held Spark Therapeutics, Inc. Common Stock as of Q4 2019.

Based on Laurion Capital Management's 13F filing for Q4 2019, filed 13 Feb 2020.