Other Events. On August 27, 2026 , ARMOUR Residential REIT, Inc. ( “ ARMOUR”) announced a cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of September 2026, as set forth below: Holder of Record Date Payment Date September 15, 2026 September 29, 2026 A copy of ARMOUR’s press release announcing the dividend information is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Entry into a Material Definitive Agreement. On July 24, 2026, ARMOUR Residential REIT, Inc. (“ARMOUR” or the “Company”) entered into Amendment No. 8 (the “Eighth Sales Agreement Amendment”), pursuant to which ARMOUR increased by 25,000,000 the number of shares of common stock, par value $0.001 per share (“Common Stock”), that may be offered and sold under the Company's Equity Sales Agreement, dated July 26, 2023 (the “Sales Agreement”), with BUCKLER Securities LLC, an affiliate of the Company…

Results of Operations and Financial Condition. On July 22, 2026 , ARMOUR Residential REIT, Inc. (the “Company”) issued a press release announcing its unaudited Q2 results and June 30, 2026 financial position. A copy of the press release is furnished as Exhibit 99.1 to this current report on Form 8-K. The information furnished pursuant to this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Excha…

Other Events. On July 21, 2026 , ARMOUR Residential REIT, Inc. ( “ ARMOUR”) announced a cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of August 2026, as set forth below: Holder of Record Date Payment Date August 17, 2026 August 28, 2026 A copy of ARMOUR’s press release announcing the dividend information is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Other Events. On July 1, 2026 , ARMOUR Residential REIT, Inc. (“ARMOUR” or the “Company”) confirmed the cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of July 2026, as set forth below: Holder of Record Date Payment Date July 15, 2026 July 30, 2026 Additionally, ARMOUR confirmed on July 1, 2026 , that a monthly cash dividend rate of $0.14583 per share will be payable to holders of ARMOUR Series C Preferred Stock for each of the three months in the thi…

Other Events. On June 24, 2026 , ARMOUR Residential REIT, Inc. (“ARMOUR”) announced guidance on the monthly cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of July 2026, as set forth below: Holder of Record Date Payment Date July 15, 2026 July 30, 2026 A copy of ARMOUR's press release announcing the dividend is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Other Events. On May 28, 2026 , ARMOUR Residential REIT, Inc. ( “ ARMOUR”) announced a cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of June 2026, as set forth below: Holder of Record Date Payment Date June 15, 2026 June 29, 2026 A copy of ARMOUR’s press release announcing the dividend information is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

The filing describes an update to the stock incentive plan, which is a routine corporate governance matter.

Results of Operations and Financial Condition. On April 22, 2026 , ARMOUR Residential REIT, Inc. (the “Company”) issued a press release announcing its unaudited Q1 results and March 31, 2026 financial position. A copy of the press release is furnished as Exhibit 99.1 to this current report on Form 8-K. The information furnished pursuant to this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exc…

Other Events. On April 21, 2026 , ARMOUR Residential REIT, Inc. ( “ ARMOUR”) announced a cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of May 2026, as set forth below: Holder of Record Date Payment Date May 15, 2026 May 28, 2026 A copy of ARMOUR’s press release announcing the dividend information is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Other Events. On April 1, 2026 , ARMOUR Residential REIT, Inc. (“ARMOUR” or the “Company”) confirmed the cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of April 2026, as set forth below: Holder of Record Date Payment Date April 15, 2026 April 29, 2026 Additionally, ARMOUR confirmed on April 1, 2026 , that a monthly cash dividend rate of $0.14583 per share will be payable to holders of ARMOUR Series C Preferred Stock for each of the three months in th…

Entry Into a Material Definitive Agreement. On March 30, 2026, ARMOUR Residential REIT, Inc. (“ARMOUR” or the “Company”) and ARMOUR Capital Management LP., a Delaware limited partnership and the Company's external manager ("ACM"), further amended and restated the management agreement between ARMOUR and ACM (as further amended and restated, the “Ninth Amended and Restated Management Agreement”) to extend the base term of the management agreement by 3.25 additional years from December 31, 2029,…

Other Events. On March 25, 2026 , ARMOUR Residential REIT, Inc. (“ARMOUR”) announced guidance on the monthly cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of April 2026, as set forth below: Holder of Record Date Payment Date April 15, 2026 April 29, 2026 A copy of ARMOUR's press release announcing the dividend is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Results of Operations and Financial Condition. On February 18, 2026 , ARMOUR Residential REIT, Inc. (the “Company” or “ARMOUR”) issued a press release announcing its unaudited Q4 results and December 31, 2025 financial position. A copy of the press release is furnished as Exhibit 99.1 to this current report on Form 8-K. The information furnished pursuant to this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as…

Other Events. On February 17, 2026 , ARMOUR Residential REIT, Inc. ( “ ARMOUR”) announced a cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of March 2026, as set forth below: Holder of Record Date Payment Date March 16, 2026 March 30, 2026 A copy of ARMOUR’s press release announcing the dividend information is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Other Events. On January 29, 2026 , ARMOUR Residential REIT, Inc. ( “ ARMOUR”) announced a cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of February 2026, as set forth below: Holder of Record Date Payment Date February 17, 2026 February 27, 2026 A copy of ARMOUR’s press release announcing the dividend information is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Entry into a Material Definitive Agreement. On January 28, 2026, ARMOUR Residential REIT, Inc. (“ARMOUR” or the “Company”) entered into Amendment No. 7 (the “Seventh Sales Agreement Amendment”), pursuant to which ARMOUR increased by 15,000,000 the number of shares of common stock, par value $0.001 per share (“Common Stock”), that may be offered and sold under the Company's Equity Sales Agreement, dated July 26, 2023 (the “Sales Agreement”), with BUCKLER Securities LLC, an affiliate of the Com…

Other Events. On January 2, 2026 , ARMOUR Residential REIT, Inc. (“ARMOUR”) confirmed the cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of January 2026, as set forth below: Holder of Record Date Payment Date January 15, 2026 January 29, 2026 Additionally, ARMOUR confirmed on January 2, 2026 , that a monthly cash dividend rate of $0.14583 per share will be payable to holders of ARMOUR Series C Preferred Stock for each of the three months in the first…

Other Events. On December 23, 2025 , ARMOUR Residential REIT, Inc. (“ARMOUR”) announced guidance on the monthly cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of January 2026, as set forth below: Holder of Record Date Payment Date January 15, 2026 January 29, 2026 A copy of ARMOUR's press release announcing the dividend is attached hereto as Exhibit 99.1 and incorporated herein by this reference. Additionally, on December 22, 2025, ARMOUR Capital Man…

Other Events. On November 26, 2025 , ARMOUR Residential REIT, Inc. ( “ ARMOUR”) announced a cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of December 2025, as set forth below: Holder of Record Date Payment Date December 15, 2025 December 29, 2025 A copy of ARMOUR’s press release announcing the dividend is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Results of Operations and Financial Condition. On October 22, 2025 , ARMOUR Residential REIT, Inc. (the “Company”) issued a press release announcing its unaudited Q3 results and September 30, 2025 financial position. A copy of the press release is furnished as Exhibit 99.1 to this current report on Form 8-K. The information furnished pursuant to this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (th…

Other Events. On October 21, 2025 , ARMOUR Residential REIT, Inc. ( “ ARMOUR”) announced a cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of November 2025, as set forth below: Holder of Record Date Payment Date November 17, 2025 November 28, 2025 A copy of ARMOUR’s press release announcing the dividend is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Other Events. On October 1, 2025 , ARMOUR Residential REIT, Inc. (“ARMOUR”) confirmed the cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of October 2025, as set forth below: Holder of Record Date Payment Date October 15, 2025 October 30, 2025 Additionally, ARMOUR confirmed on October 1, 2025 , that a monthly cash dividend rate of $0.14583 per share will be payable to holders of ARMOUR Series C Preferred Stock for each of the three months in the fourt…

Other Events. On September 24, 2025 , ARMOUR Residential REIT, Inc. (“ARMOUR”) announced guidance on the monthly cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of October 2025, as set forth below: Holder of Record Date Payment Date October 15, 2025 October 30, 2025 A copy of ARMOUR's press release announcing the dividend is attached hereto as Exhibit 99.1 and incorporated herein by this reference.

Other Events. On August 27, 2025 , ARMOUR Residential REIT, Inc. ( “ ARMOUR”) announced a cash dividend of $0.24 per share, payable to holders of ARMOUR common stock for the month of September 2025, as set forth below: Holder of Record Date Payment Date September 15, 2025 September 29, 2025 A copy of ARMOUR’s press release announcing the dividend is attached hereto as Exhibit 99.1 and incorporated herein by this reference.