NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

Magnetar Financial LLC's Holding History (CIK: 0001352851)

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

Q4 2018
Shares 2,967,320 Value ($000) $84,925 Avg Close — Range —
Q3 2018
Shares 3,159,587 Value ($000) $88,121 Avg Close — Range —
Q2 2018
Shares 3,069,529 Value ($000) $85,640 Avg Close — Range —
Q1 2018
Shares 3,056,560 Value ($000) $75,986 Avg Close — Range —
Q4 2017
Shares 3,077,070 Value ($000) $74,557 Avg Close — Range —
Q3 2017
Shares 3,077,070 Value ($000) $84,927 Avg Close — Range —