COMMONWEALTH REIT

CUSIP: 203233101 Class: COMMON STOCK

GATEWAY INVESTMENT ADVISERS LLC's Holding History (CIK: 0001114618)

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

Q2 2014
Shares 25,619 Value ($000) $674 Avg Close — Range —
Q1 2014
Shares 25,731 Value ($000) $677 Avg Close — Range —
Q4 2013
Shares 25,731 Value ($000) $600 Avg Close — Range —
Q3 2013
Shares 25,731 Value ($000) $564 Avg Close — Range —
Q2 2013
Shares 25,731 Value ($000) $595 Avg Close — Range —