NYSE EURONEXT

CUSIP: 629491101 Class: COM

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q3 2013
Shares 375,690 Value ($000) $15,771 Avg Close — Range —
Q2 2013
Shares 381,690 Value ($000) $15,802 Avg Close — Range —