X0609 4 2026-03-20 0001362004 ICF International, Inc. ICFI 0001672529 Chadha Ranjit S false 1902 RESTON METRO PLAZA RESTON VA 20190 1 VP & Principal Accounting Off. 0 Common 2026-03-20 4 M 0 197.0000 0 A 263.0000 D Common 2026-03-20 4 M 0 102.0000 0 A 365.0000 D Common 2026-03-20 4 F 0 37.0000 65.8900 D 328.0000 D Common 2026-03-20 4 F 0 70.0000 65.8900 D 258.0000 D Restricted Stock Units 2026-03-20 4 A 0 813.0000 0.0000 A Common 813.0000 2507.0000 D Restricted Stock Units 2026-03-20 4 M 0 102.0000 D Common 102.0000 2405.0000 D Restricted Stock Units 2026-03-20 4 M 0 125.0000 D Common 125.0000 2280.0000 D Restricted Stock Units 2026-03-20 4 M 0 197.0000 D Common 197.0000 2083.0000 D Restricted Stock Units 2026-03-20 4 M 0 234.0000 D Common 234.0000 1849.0000 D Restricted Stock Units 2026-03-20 4 M 0 240.0000 D Common 240.0000 1609.0000 D The exercise price for the restricted stock unit exercise was $65.89. Each restricted stock unit is the economic equivalent of one share of ICF International, Inc.'s Common Stock. These acquired restricted stock units were granted pursuant to ICF International, Inc.'s 2018 Omnibus Incentive Plan, as amended. These restricted stock units vest over a period of three (3) years, at 25% on each of the first two anniversaries of the grant and 50% on the third anniversary from the day of grant. Represents the 2nd vesting anniversary (25%) of acquired restricted stock units granted pursuant to the 2018 Omnibus Incentive Plan, as amended. The market value for the cash-settled restricted stock unit exercise was $115.32. Represents the second vesting anniversary (25%) of acquired cash-settled restricted stock units granted pursuant to the 2010 Omnibus Plan, as amended. The emarket value for the cash-settled restricted stock unit exercise was $115.32. Represents the 1st vesting anniversary (25%) of acquired restricted stock units granted pursuant to the 2018 Omnibus Incentive Plan, as amended. The market value for the cash-settled restricted stock unit exercise was $80.08. Represents the third vesting anniversary (50%) of acquired cash-settled restricted stock units granted pursuant to the 2010 Omnibus Plan, as amended. The exmarket value for the cash-settled restricted stock unit exercise was $66.62. Represents the first vesting anniversary (25%) of acquired cash-settled restricted stock units granted pursuant to the 2010 Omnibus Plan, as amended. The market value for the cash-settled restricted stock unit exercise was $66.62. /s/ James E. Daniel, Attorney-in-fact 2026-03-24