NM 9 1/4 04/15/19 144a

CUSIP: 63938NAC8 Class: CORP

ADVENT CAPITAL MANAGEMENT /DE/'s Holding History (CIK: 0001097278)

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

Q2 2013
Shares 1,000,000 Value ($000) $1,073 Avg Close — Range —