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ZOGENIX INC
ZOGENIX INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 4 Institutional holders with a total value of $3,972,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 20,249 2,774,000 69.84% Call
2 GROUP ONE TRADING LLC 870,600 1,193,000 30.04% Call
3 CITADEL ADVISORS LLC 3,400 5,000 0.13% Call
4 SIMPLEX TRADING, LLC 90 0 0.00% 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.