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

Institutional Holders (2015Q1)
Portfolio Summary: 4 Institutional holders with a total value of $3,160,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SIMPLEX TRADING, LLC 43 10,000 0.32% Put
2 SABBY MANAGEMENT, LLC 230 293,000 9.27% Put
3 CITADEL ADVISORS LLC 64,500 821,000 25.98% Put
4 GROUP ONE TRADING LLC 159,900 2,036,000 64.43% 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.