KERYX BIOPHARMACEUTICALS INC

CUSIP: 492515101 Class: COMMON STOCK

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

Note: Option positions (PUT/CALL) are excluded.

Q4 2016
Shares 1,291,531 Value ($000) $7,568 Avg Close — Range —
Q1 2015
Shares 765,450 Value ($000) $9,744 Avg Close — Range —
Q4 2014
Shares 1,183,484 Value ($000) $16,746 Avg Close — Range —
Q3 2014
Shares 1,233,484 Value ($000) $16,960 Avg Close — Range —
Q2 2014
Shares 3,884,409 Value ($000) $59,742 Avg Close — Range —
Q1 2014
Shares 1,403,105 Value ($000) $23,909 Avg Close — Range —
Q4 2013
Shares 1,483,260 Value ($000) $19,208 Avg Close — Range —
Q3 2013
Shares 3,849,296 Value ($000) $38,839 Avg Close — Range —
Q2 2013
Shares 5,864,612 Value ($000) $43,809 Avg Close — Range —