COGDELL SPENCER INC

CUSIP: 19238U107 Class: COMMON STOCK

TEACHERS INSURANCE & ANNUITY ASSOCIATION OF AMERICA's Holding History (CIK: 0000315038)

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

Q1 2006
Shares 280,000 Value ($000) $5,970 Avg Close — Range —
Q4 2005
Shares 280,000 Value ($000) $4,729 Avg Close — Range —