X0508 4 2025-12-31 0001418819 Iridium Communications Inc. IRDM 0001623397 Alterman Louis M C/O IRIDIUM COMMUNICATIONS INC. 1750 TYSONS BOULEVARD, SUITE 1400 MCLEAN VA 22102 1 0 0 0 0 Common Stock 2025-12-31 4 A 0 2876 0 A 2876 D These shares are represented by restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock of the issuer. The shares shall vest on December 31, 2026, subject to the reporting person's continuous service with the issuer as of such vesting date. /s/ Peter L. Trentman, Attorney-in-Fact 2026-01-05