Form 4 Filing for Iridium Communications Inc.

Vincent James O'Neill, Chief Financial Officer of Iridium Communications Inc., reported a transaction on December 19, 2025. The transaction involved the disposal of 1304 shares of Common Stock at a price of $17.04 per share, for a total value of $22,221.60. This transaction was executed under transaction code "F", indicating the withholding of shares to cover taxes related to accelerated vesting upon qualified retirement under the issuer's "sum of 70" program. Following this transaction, O'Neill holds 47463 shares of Common Stock directly. The filing was made on December 23, 2025.