X0306 4 2013-03-14 0001126328 PRINCIPAL FINANCIAL GROUP INC PFG 0001166855 CARTER MILLER JOYCELYN 711 HIGH STREET DES MOINES IA 50392 1 0 0 0 Common Stock 2013-03-14 4 M 0 1935 30.16 A 27869 D Common Stock 2013-03-14 4 S 0 1935 34.35 D 25934 D Stock Option (Right to Buy) 30.16 2013-03-14 4 M 0 1935 0 D 2004-05-19 2013-05-19 Common Stock 1935 0 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.34 to $34.39, inclusive. The reporting person undertakes to provide to Principal Financial Group, Inc., any security holder thereof, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Joyce N. Hoffman, by Power of Attorney 2013-03-15