ZS PHARMA INC

CUSIP: 98979G105 Class: Cmn

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q3 2015
Shares 1,006,253 Value ($000) $66,071 Avg Close — Range —
Q2 2015
Shares 1,354,558 Value ($000) $70,965 Avg Close — Range —
Q1 2015
Shares 1,360,578 Value ($000) $57,253 Avg Close — Range —
Q4 2014
Shares 669,171 Value ($000) $27,817 Avg Close — Range —
Q3 2014
Shares 391,800 Value ($000) $15,370 Avg Close — Range —