KERYX BIOPHARMACEUTICALS INC

CUSIP: 492515101 Class: COMMON STOCK

RA CAPITAL MANAGEMENT, L.P.'s Holding History (CIK: 0001346824)

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

Q2 2015
Shares 59,200 Value ($000) $591 Avg Close — Range —
Q1 2015
Shares 59,200 Value ($000) $754 Avg Close — Range —
Q4 2014
Shares 59,200 Value ($000) $838 Avg Close — Range —
Q3 2014
Shares 59,200 Value ($000) $814 Avg Close — Range —
Q3 2013
Shares 2,391,261 Value ($000) $24,128 Avg Close — Range —
Q2 2013
Shares 5,659,285 Value ($000) $42,275 Avg Close — Range —