X0306 4 2016-01-06 0 0001418819 Iridium Communications Inc. IRDM 0001014813 WEST BARRY C/O IRIDIUM COMMUNICATIONS INC., 1750 TYSONS BOULEVARD, SUITE 1400 MCLEAN VA 22102 1 0 0 0 Common Stock 2016-01-06 4 A 0 10856.4 0.00 A 10856.4 D This security represents restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock of the issuer. The shares underlying this restricted stock unit award vest in four equal quarterly installments on the last day of each calendar quarter during 2016, subject to the reporting person's continued service with the issuer. The restricted stock units were issued to the reporting person pursuant to the issuer's director compensation plan. /s/Brian Leaf, Attorney-in-Fact 2016-01-08