NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

Polar Asset Management Partners Inc.'s Holding History (CIK: 0001326389)

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

Q3 2018
Shares 25,000 Value ($000) $697 Avg Close — Range —
Q2 2018
Shares 100,000 Value ($000) $2,790 Avg Close — Range —
Q1 2018
Shares 200,000 Value ($000) $4,972 Avg Close — Range —
Q4 2017
Shares 200,000 Value ($000) $4,846 Avg Close — Range —
Q3 2017
Shares 32,500 Value ($000) $897 Avg Close — Range —