COLUMBIA PIPELINE GROUP INC

CUSIP: 198280109 Class: COM

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

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

Q2 2016
Shares 138,866 Value ($000) $3,540 Avg Close — Range —
Q1 2016
Shares 137,666 Value ($000) $3,455 Avg Close — Range —
Q4 2015
Shares 133,066 Value ($000) $2,661 Avg Close — Range —
Q3 2015
Shares 114,766 Value ($000) $2,099 Avg Close — Range —