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

Institutional Holders (2016Q1)
Portfolio Summary: 4 Institutional holders with a total value of $5,184,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 4,639 4,286,000 82.68% Call
2 GROUP ONE TRADING LLC 79,400 734,000 14.16% Call
3 CITADEL ADVISORS LLC 15,600 144,000 2.78% Call
4 SIMPLEX TRADING, LLC 271 20,000 0.39% 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.