Armour Residential REIT, Inc.

On April 21, 2026, the Board authorized an increase to the Common Stock Repurchase Program to authorize the Company to repurchase up to an aggregate of 5,000 shares of the Company’s outstanding common stock, par value $0.001 per share, effective immediately. The Company’s previous repurchase authorization was established in October 2023. Under that authorization, the Company has repurchased approximately 1,758 shares of common stock through March 31, 2026. Under the Common Stock Repurchase Program, the shares may be repurchased from time to time in open market transactions at prevailing market prices, in privately negotiated transactions, pursuant to a trading plan separately adopted in the future, or by other means, in accordance with federal securities laws. The actual timing, number and value of shares repurchased under the Common Stock Repurchase Program will be determined by management at its discretion and will depend on a number of factors, including, but not limited to, the market price of ARMOUR’s stock, general market and economic conditions, and applicable legal requirements.