NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2018
Shares 229,846 Value ($000) $6,578 Avg Close — Range —
Q3 2018
Shares 222,628 Value ($000) $6,209 Avg Close — Range —
Q2 2018
Shares 148,138 Value ($000) $4,133 Avg Close — Range —
Q1 2018
Shares 152,703 Value ($000) $3,796 Avg Close — Range —
Q4 2017
Shares 189,203 Value ($000) $4,584 Avg Close — Range —
Q3 2017
Shares 314,010 Value ($000) $8,667 Avg Close — Range —
Q2 2017
Shares 94,010 Value ($000) $2,357 Avg Close — Range —
Q1 2017
Shares 94,010 Value ($000) $2,522 Avg Close — Range —
Q4 2016
Shares 109,310 Value ($000) $2,865 Avg Close — Range —
Q3 2016
Shares 109,310 Value ($000) $2,732 Avg Close — Range —
Q2 2016
Shares 109,310 Value ($000) $2,370 Avg Close — Range —
Q1 2016
Shares 93,210 Value ($000) $1,397 Avg Close — Range —
Q4 2015
Shares 93,210 Value ($000) $2,042 Avg Close — Range —
Q3 2015
Shares 98,910 Value ($000) $1,560 Avg Close — Range —
Q2 2015
Shares 105,150 Value ($000) $1,502 Avg Close — Range —
Q1 2015
Shares 103,850 Value ($000) $1,797 Avg Close — Range —
Q4 2014
Shares 103,850 Value ($000) $1,862 Avg Close — Range —
Q3 2014
Shares 121,300 Value ($000) $1,593 Avg Close — Range —
Q2 2014
Shares 122,092 Value ($000) $1,754 Avg Close — Range —
Q1 2014
Shares 120,292 Value ($000) $1,533 Avg Close — Range —
Q4 2013
Shares 120,292 Value ($000) $1,203 Avg Close — Range —
Q3 2013
Shares 120,292 Value ($000) $1,583 Avg Close — Range —
Q2 2013
Shares 117,149 Value ($000) $1,673 Avg Close — Range —