NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2018
Shares 27,653 Value ($000) $791 Avg Close — Range —
Q3 2018
Shares 22,103 Value ($000) $616 Avg Close — Range —
Q2 2018
Shares 21,303 Value ($000) $594 Avg Close — Range —
Q1 2018
Shares 25,203 Value ($000) $627 Avg Close — Range —
Q4 2017
Shares 24,403 Value ($000) $591 Avg Close — Range —
Q3 2017
Shares 22,153 Value ($000) $611 Avg Close — Range —