EXELON CORP

CUSIP: 30161n101 Class: COM

Chesley Taft & Associates LLC's Holding History (CIK: 0001164632)

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

Q2 2015
Shares 6,613 Value ($000) $208 Avg Close — Range —
Q1 2015
Shares 6,571 Value ($000) $221 Avg Close — Range —
Q4 2014
Shares 6,951 Value ($000) $258 Avg Close — Range —
Q3 2014
Shares 7,340 Value ($000) $250 Avg Close — Range —
Q2 2014
Shares 7,294 Value ($000) $266 Avg Close — Range —
Q1 2014
Shares 7,253 Value ($000) $243 Avg Close — Range —
Q2 2013
Shares 7,036 Value ($000) $217 Avg Close — Range —