AMERICAN CAPITAL AGENCY CORP

CUSIP: 02503X105 Class: COM

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

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

Q3 2013
Shares 17,375 Value ($000) $392 Avg Close — Range —
Q2 2013
Shares 13,250 Value ($000) $305 Avg Close — Range —