Form 4 Filing for Last Timothy James

This filing details a transaction by Last Timothy James, EVP, Sales & Marketing at Iridium Communications Inc. On December 19, 2025, Mr. James disposed of 974 shares of Common Stock. The transaction code "F" indicates that the shares were withheld to cover taxes associated with the accelerated vesting of restricted stock unit awards, a benefit under the issuer's "sum of 70" retirement program. The disposal occurred at a price of $17.04 per share. Following this transaction, Mr. James directly owns 49,211 shares of Common Stock. The filing was signed on December 23, 2025, by Peter L. Trentman as Attorney-in-Fact.