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QUESTCOR PHARMACEUTICALS INC
QUESTCOR PHARMACEUTICALS INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 2 Institutional holders with a total value of $21,914,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 260,800 16,934,000 77.27% Call
2 CITADEL ADVISORS LLC 76,700 4,980,000 22.73% 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.