ZS PHARMA INC

CUSIP: 98979G105 Class: Cmn

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

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

Q1 2015
Shares 564,483 Value ($000) $23,753 Avg Close — Range —
Q4 2014
Shares 564,483 Value ($000) $23,466 Avg Close — Range —
Q3 2014
Shares 564,483 Value ($000) $22,145 Avg Close — Range —