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

Institutional Holders (2015Q2)
Portfolio Summary: 4 Institutional holders with a total value of $5,556,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 25,485 4,281,000 77.05% Call
2 GROUP ONE TRADING LLC 753,000 1,265,000 22.77% Call
3 CITADEL ADVISORS LLC 5,000 8,000 0.14% Call
4 SIMPLEX TRADING, LLC 71 2,000 0.04% 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.