NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

LOOMIS SAYLES & CO L P's Holding History (CIK: 0000312348)

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

Q2 2017
Shares 689,146 Value ($000) $17,277 Avg Close — Range —
Q1 2017
Shares 708,946 Value ($000) $19,021 Avg Close — Range —
Q4 2016
Shares 152,166 Value ($000) $3,988 Avg Close — Range —