NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q3 2018
Shares 100,800 Value ($000) $2,811 Avg Close — Range —
Q2 2018
Shares 9,700 Value ($000) $271 Avg Close — Range —
Q1 2017
Shares 541,134 Value ($000) $14,519 Avg Close — Range —