NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2018
Shares 19,159 Value ($000) $549 Avg Close — Range —
Q3 2018
Shares 16,128 Value ($000) $450 Avg Close — Range —
Q2 2018
Shares 14,524 Value ($000) $405 Avg Close — Range —
Q1 2018
Shares 13,847 Value ($000) $344 Avg Close — Range —
Q4 2017
Shares 10,948 Value ($000) $265 Avg Close — Range —
Q3 2017
Shares 11,123 Value ($000) $307 Avg Close — Range —
Q2 2017
Shares 8,133 Value ($000) $204 Avg Close — Range —
Q1 2017
Shares 9,545 Value ($000) $256 Avg Close — Range —