NXSTAGE MEDICAL INC

CUSIP: 67072V10 Class: COM

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

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

Q3 2016
Shares 451,713 Value ($000) $11,288 Avg Close — Range —
Q3 2015
Shares 92,100 Value ($000) $1,316 Avg Close — Range —
Q2 2015
Shares 92,100 Value ($000) $1,316 Avg Close — Range —
Q2 2014
Shares 60,561 Value ($000) $870 Avg Close — Range —
Q3 2013
Shares 13,661 Value ($000) $180 Avg Close — Range —