X0306 4 2014-12-30 0 0001114220 KERYX BIOPHARMACEUTICALS INC KERX 0001251213 BENTSUR RON C/O KERYX BIOPHARMACEUTICALS, INC. 750 LEXINGTON AVENUE NEW YORK NY 10022 1 1 0 0 Chief Executive Officer Common Stock 2014-12-30 4 S 0 200000 14.11 D 717000 D Reflects the weighted average sale price. The range of prices for such transaction is $14.00 to $14.29. Includes 26,070 shares of restricted stock. In addition, Mr. Bentsur holds stock options to purchase up to 1,002,932 shares of Keryx common stock. /s/ Ron Bentsur 2015-01-02