NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

ORBIMED ADVISORS LLC's Holding History (CIK: 0001055951)

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

Q2 2014
Shares 795,200 Value ($000) $11,427 Avg Close — Range —
Q1 2014
Shares 2,113,000 Value ($000) $26,920 Avg Close — Range —
Q4 2013
Shares 2,679,216 Value ($000) $26,792 Avg Close — Range —
Q3 2013
Shares 3,114,500 Value ($000) $40,987 Avg Close — Range —
Q2 2013
Shares 3,221,100 Value ($000) $45,997 Avg Close — Range —