NXSTAGE MEDICAL INC

CUSIP: 67072V103 Class: COMMON STOCK

Westchester Capital Management, LLC's Holding History (CIK: 0001512805)

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

Q4 2018
Shares 2,250,824 Value ($000) $64,418 Avg Close — Range —
Q3 2018
Shares 1,147,413 Value ($000) $32,001 Avg Close — Range —
Q2 2018
Shares 527,494 Value ($000) $14,717 Avg Close — Range —