NORTHEAST UTILS

CUSIP: 664397106 Class: COM

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q4 2014
Shares 130,456 Value ($000) $6,982 Avg Close — Range —
Q3 2014
Shares 129,556 Value ($000) $5,739 Avg Close — Range —
Q2 2014
Shares 129,456 Value ($000) $6,119 Avg Close — Range —
Q1 2014
Shares 128,756 Value ($000) $5,858 Avg Close — Range —
Q4 2013
Shares 128,056 Value ($000) $5,428 Avg Close — Range —
Q3 2013
Shares 128,056 Value ($000) $5,282 Avg Close — Range —
Q2 2013
Shares 127,756 Value ($000) $5,368 Avg Close — Range —