THE ADT CORPORATION

CUSIP: 00101J106 Class: COM

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

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

Q4 2013
Shares 139,673 Value ($000) $5,653 Avg Close — Range —
Q3 2013
Shares 133,123 Value ($000) $5,413 Avg Close — Range —
Q2 2013
Shares 50,489 Value ($000) $2,012 Avg Close — Range —