NORTHSTAR ASSET MGMT GROUP I

CUSIP: 66705Y104 Class: COM

VIRGINIA RETIREMENT SYSTEMS ET AL's Holding History (CIK: 0001005354)

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

Q4 2016
Shares 39,800 Value ($000) $594 Avg Close — Range —
Q1 2015
Shares 37,500 Value ($000) $875 Avg Close — Range —
Q4 2014
Shares 38,500 Value ($000) $869 Avg Close — Range —