CONSTELLATION ENERGY GROUP INC

CUSIP: 210371100 Class: COM

MUFG Americas Holdings Corp's Holding History (CIK: 0001011659)

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

Q4 2011
Shares 4,970 Value ($000) $197 Avg Close — Range —
Q3 2011
Shares 5,008 Value ($000) $191 Avg Close — Range —
Q2 2011
Shares 6,517 Value ($000) $247 Avg Close — Range —
Q1 2011
Shares 18,981 Value ($000) $591 Avg Close — Range —
Q4 2010
Shares 27,159 Value ($000) $832 Avg Close — Range —