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

Institutional Holders (2015Q1)
Portfolio Summary: 5 Institutional holders with a total value of $7,082,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SPHERA FUNDS MANAGEMENT LTD. 600 3,651,000 51.55% Call
2 SABBY MANAGEMENT, LLC 300 1,826,000 25.78% Call
3 GROUP ONE TRADING LLC 14,100 858,000 12.12% Call
4 CITADEL ADVISORS LLC 11,200 682,000 9.63% Call
5 SIMPLEX TRADING, LLC 85 65,000 0.92% Call

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.