BAKER MICHAEL CORP

CUSIP: 057149106 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q3 2013
Shares 15,510 Value ($000) $628 Avg Close — Range —
Q2 2013
Shares 15,070 Value ($000) $409 Avg Close — Range —
Q1 2013
Shares 15,056 Value ($000) $369 Avg Close — Range —