X0609 4 2026-08-21 0 0001428205 Armour Residential REIT, Inc. ARR 0001306260 Behar Z Jamie false 3001 OCEAN DRIVE, SUITE 201 VERO BEACH FL 32963 1 0 0 0 0 Common Stock, par value $0.001 per share 2026-08-21 4 M 0 1900 0 A 17344 D Phantom Stock 2026-08-21 4 M 0 1900 0 D Common Stock 1900 28354 D On August 21, 2026, the reporting person elected to convert 1,900 shares of vested phantom stock into 1,900 shares of ARMOUR common stock. The 1,900 shares are part of, and relate to, phantom stock vesting over a five-year period, which was reported on Form 4 reports filed by the reporting person on February 14, 2023, December 18, 2025 and May 21, 2026. Each unit of phantom stock is the economic equivalent of one share of ARMOUR common stock. /s/ Z. Jamie Behar 2026-08-25