NYSE EURONEXT

CUSIP: 629491101 Class: COM

Arizona State Retirement System's Holding History (CIK: 0001558481)

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

Q3 2013
Shares 108,425 Value ($000) $4,551 Avg Close — Range —
Q2 2013
Shares 106,325 Value ($000) $4,401 Avg Close — Range —
Q1 2013
Shares 108,525 Value ($000) $4,193 Avg Close — Range —