NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

PRELUDE CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001387508)

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

Q4 2018
Shares 78,032 Value ($000) $2,233 Avg Close — Range —
Q3 2018
Shares 42,020 Value ($000) $1,172 Avg Close — Range —
Q2 2018
Shares 23,000 Value ($000) $642 Avg Close — Range —
Q1 2018
Shares 33,842 Value ($000) $841 Avg Close — Range —
Q4 2017
Shares 11,876 Value ($000) $288 Avg Close — Range —
Q3 2017
Shares 4,500 Value ($000) $124 Avg Close — Range —
Q4 2015
Shares 1,343 Value ($000) $29 Avg Close — Range —
Q2 2015
Shares 1,150 Value ($000) $16 Avg Close — Range —