X0508 4 2026-02-26 0001418819 Iridium Communications Inc. IRDM 0001229996 FITZPATRICK THOMAS C/O IRIDIUM COMMUNICATIONS INC. 1750 TYSONS BOULEVARD, SUITE 1400 MCLEAN VA 22102 1 0 0 0 0 Common Stock 2026-02-26 4 A 0 34247 0 A 276161.7 D Common Stock 2026-03-01 4 F 0 8767 22.49 D 267394.7 D Reflects the number of shares certified as earned with respect to an award of performance-based restricted stock units ("PSUs") granted on March 1, 2024. All of the PSUs settled on March 1, 2026. The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of the PSU award discussed in footnote (1) herein. /s/ Peter L. Trentman, Attorney-in-Fact 2026-03-02