COMMONWEALTH REIT

CUSIP: 203233606 Class: CMN

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2013
Shares 2,500 Value ($000) $55 Avg Close — Range —
Q3 2013
Shares 225,000 Value ($000) $5,159 Avg Close — Range —
Q2 2013
Shares 225,000 Value ($000) $5,648 Avg Close — Range —