NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q4 2018
Shares 1,045,899 Value ($000) $29,934 Avg Close — Range —
Q3 2018
Shares 231,978 Value ($000) $6,470 Avg Close — Range —
Q2 2018
Shares 309,911 Value ($000) $8,647 Avg Close — Range —
Q1 2018
Shares 445,249 Value ($000) $11,069 Avg Close — Range —
Q4 2017
Shares 440,700 Value ($000) $10,678 Avg Close — Range —
Q3 2017
Shares 319,666 Value ($000) $8,823 Avg Close — Range —