NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

PRIVATE TRUST CO NA's Holding History (CIK: 0001277557)

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

Q3 2013
Shares 51 Value ($000) $1 Avg Close — Range —
Q2 2013
Shares 51 Value ($000) $1 Avg Close — Range —
Q1 2013
Shares 51 Value ($000) $1 Avg Close — Range —