X0306 4 2012-10-02 0001428205 Armour Residential REIT, Inc. ARR 0001475027 GUBA THOMAS K 3001 OCEAN DRIVE SUITE 201 VERO BEACH FL 32963 1 Common Stock, par value $0.001 per share 2012-10-02 4 A 0 1436 A 181119 D Common Stock, par value $0.001 per share 2012-10-02 4 M 0 251 A 181370 D On October 2, 2012, the reporting person elected to redeem 251 shares of vested phantom stock previously granted under ARMOUR Residential REIT, Inc.'s 2009 Stock Incentive Compensation Plan into 251 shares of ARMOUR's common stock, and received 1,436 shares of ARMOUR common stock pursuant to quarterly compensation paid for the reporting person's service on ARMOUR's Board of Directors. Commencing with the end of the first quarter of 2012, the reporting person will receive up to $11,000 of the reporting person's total quarterly compensation for 2012 (or $44,000 on an annual basis), paid in stock. However, the reporting person may elect to receive some or all of the stock compensation as cash. The 1,436 shares of stock represent the reporting person's election of stock compensation for the past quarter. /s/ Thomas K. Guba 2012-10-04