X0306 4 2016-01-28 0 0001114220 KERYX BIOPHARMACEUTICALS INC KERX 0001636994 Adams Brian C/O KERYX BIOPHARMACEUTICALS, INC. ONE MARINA PARK DRIVE, 12TH FLOOR BOSTON MA 02210 0 1 0 0 VP and General Counsel Common Stock 2016-01-28 4 A 0 53750 0.00 A 106882 D Employee Stock Option (Right to Buy) 3.35 2016-01-28 4 A 0 107500 0.00 A 2017-01-28 2026-01-28 Common Stock 107500 107500 D The 53,750 shares are restricted common stock, with one-third of the 53,750 shares vesting on January 28, 2017 and one-twelfth vesting on each of April 28, 2017, July 28, 2017, October 28, 2017, January 28, 2018, April 28, 2018, July 28, 2018, October 28, 2018, and January 28, 2019. Includes 86,331 shares of restricted stock. The options vest according to the following schedule: one-third of the 107,500 options will vest on January 28, 2017 and one-twelfth will vest on each of April 28, 2017, July 28, 2017, October 28, 2017, January 28, 2018, April 28, 2018, July 28, 2018, October 28, 2018, and January 28, 2019. /s/ Brian Adams 2016-02-01