NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

SECTORAL ASSET MANAGEMENT INC's Holding History (CIK: 0001274413)

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

Q3 2017
Shares 98,579 Value ($000) $2,721 Avg Close — Range —
Q2 2017
Shares 349,709 Value ($000) $8,767 Avg Close — Range —
Q1 2017
Shares 504,568 Value ($000) $13,538 Avg Close — Range —
Q4 2016
Shares 891,313 Value ($000) $23,361 Avg Close — Range —
Q3 2016
Shares 1,199,869 Value ($000) $29,985 Avg Close — Range —
Q2 2016
Shares 1,828,582 Value ($000) $39,644 Avg Close — Range —
Q1 2016
Shares 1,647,309 Value ($000) $24,693 Avg Close — Range —
Q4 2015
Shares 701,303 Value ($000) $15,366 Avg Close — Range —
Q3 2015
Shares 712,329 Value ($000) $11,233 Avg Close — Range —
Q2 2015
Shares 1,172,196 Value ($000) $16,745 Avg Close — Range —
Q1 2015
Shares 876,042 Value ($000) $15,156 Avg Close — Range —
Q4 2014
Shares 807,012 Value ($000) $14,470 Avg Close — Range —
Q3 2014
Shares 881,732 Value ($000) $11,577 Avg Close — Range —
Q2 2014
Shares 495,556 Value ($000) $7,121 Avg Close — Range —
Q1 2014
Shares 496,465 Value ($000) $6,325 Avg Close — Range —
Q4 2013
Shares 753,434 Value ($000) $7,534 Avg Close — Range —
Q3 2013
Shares 1,101,000 Value ($000) $14,489 Avg Close — Range —
Q2 2013
Shares 3,555,725 Value ($000) $50,776 Avg Close — Range —