NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

PDT Partners, LLC's Holding History (CIK: 0001564702)

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

Q2 2014
Shares 21,800 Value ($000) $313 Avg Close — Range —
Q2 2013
Shares 36,094 Value ($000) $515 Avg Close — Range —