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SPARK THERAPEUTICS INC
SPARK THERAPEUTICS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q2)
Portfolio Summary: 5 Institutional holders with a total value of $7,548,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 759 4,574,000 60.60% Put
2 GROUP ONE TRADING LLC 26,100 1,573,000 20.84% Put
3 Iguana Healthcare Management, LLC 15,000 904,000 11.98% Put
4 CITADEL ADVISORS LLC 7,500 452,000 5.99% Put
5 SIMPLEX TRADING, LLC 104 45,000 0.60% Put

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.