NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q1 2017
Shares 64,184 Value ($000) $1,722 Avg Close — Range —
Q4 2016
Shares 42,689 Value ($000) $1,119 Avg Close — Range —
Q3 2016
Shares 92,703 Value ($000) $2,317 Avg Close — Range —