ZS PHARMA INC

CUSIP: 98979G105 Class: Cmn

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

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

Q2 2015
Shares 132,000 Value ($000) $6,915 Avg Close — Range —
Q1 2015
Shares 147,385 Value ($000) $6,202 Avg Close — Range —