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CUSIP: 629491101 Class: COM

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q3 2013
Shares 45,830 Value ($000) $1,924 Avg Close — Range —
Q2 2013
Shares 51,260 Value ($000) $2,122 Avg Close — Range —