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KERYX BIOPHARMACEUTICALS INC
KERYX BIOPHARMACEUTICALS INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 4 Institutional holders with a total value of $5,723,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 282,100 3,992,000 69.75% Put
2 CITADEL ADVISORS LLC 108,400 1,534,000 26.80% Put
3 SABBY MANAGEMENT, LLC 128 181,000 3.16% Put
4 SIMPLEX TRADING, LLC 91 16,000 0.28% Put

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.