NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q4 2018
Shares 3,435 Value ($000) $98 Avg Close — Range —
Q3 2018
Shares 2,800 Value ($000) $78 Avg Close — Range —
Q4 2017
Shares 36,234 Value ($000) $877 Avg Close — Range —
Q3 2017
Shares 24,307 Value ($000) $670 Avg Close — Range —
Q2 2017
Shares 8,514 Value ($000) $213 Avg Close — Range —
Q1 2017
Shares 5,630 Value ($000) $151 Avg Close — Range —
Q2 2015
Shares 6,922 Value ($000) $98 Avg Close — Range —
Q1 2015
Shares 2,952 Value ($000) $51 Avg Close — Range —