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

Institutional Holders (2015Q3)
Portfolio Summary: 4 Institutional holders with a total value of $53,672,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 31,115 42,005,000 78.26% Call
2 GROUP ONE TRADING LLC 849,300 11,466,000 21.36% Call
3 CITADEL ADVISORS LLC 13,100 177,000 0.33% Call
4 SIMPLEX TRADING, LLC 249 24,000 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.