X0306 4 2015-06-05 0001362004 ICF International, Inc. ICFI 0001376436 Datar Srikant 9300 LEE HIGHWAY FAIRFAX VA 22031 1 Common Stock 2015-06-05 4 P 0 700 36.36 A 13796 I Swati S. Datar Trust Common Stock 2015-06-08 4 P 0 1100 36.09 A 14896 I Swati S. Datar Trust Common Stock 13096 I Swati S. Datar Trust Common Stock 15797 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.34 to $36.40 per share, inclusive. The reporting person will provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote 1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.89 to $36.21 per share, inclusive. The reporting person will provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote 2. /s/ James J. Maiwurm, Attorney-in-fact 2015-06-09