NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q4 2018
Shares 103,676 Value ($000) $2,967 Avg Close — Range —
Q3 2018
Shares 121,766 Value ($000) $3,396 Avg Close — Range —
Q2 2018
Shares 131,430 Value ($000) $3,667 Avg Close — Range —
Q1 2018
Shares 132,364 Value ($000) $3,291 Avg Close — Range —
Q4 2017
Shares 74,766 Value ($000) $1,812 Avg Close — Range —
Q3 2017
Shares 100,211 Value ($000) $2,766 Avg Close — Range —