CONSTELLATION ENERGY GROUP INC

CUSIP: 210371100 Class: COM

BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp's Holding History (CIK: 0001228242)

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

Q4 2011
Shares 111,461 Value ($000) $4,422 Avg Close — Range —
Q3 2011
Shares 138,921 Value ($000) $5,287 Avg Close — Range —