NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q4 2017
Shares 300,000 Value ($000) $7,269 Avg Close — Range —
Q3 2017
Shares 150,000 Value ($000) $4,140 Avg Close — Range —
Q2 2014
Shares 200,000 Value ($000) $2,874 Avg Close — Range —
Q1 2014
Shares 50,000 Value ($000) $637 Avg Close — Range —
Q1 2013
Shares 191,100 Value ($000) $2,156 Avg Close — Range —