X0609 4 2026-05-21 0 0001428205 Armour Residential REIT, Inc. ARR 0001377714 Hain Robert C false 3001 OCEAN DRIVE SUITE #201 VERO BEACH FL 32963 1 0 0 0 0 Common Stock, par value $0.001 per share 2026-05-21 4 M 0 1900 0 A 3431 D Common Stock, par value $0.001 per share 2026-05-21 4 F 0 950 16.47 D 2481 D Phantom Stock 2026-05-21 4 M 0 1900 0 D Common Stock 1900 30254 D On May 21, 2026 , the reporting person elected to convert 950 of the 1,900 shares of vested phantom stock into 950 shares of ARMOUR common stock. The reporting person elected to convert the remaining 950 shares of vested phantom stock into cash solely to pay income taxes on the vested stock. The 1900 shares are part of, and relate to, phantom stock vesting over five-year periods, 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/ Robert C. Hain 2026-05-26