Urges Stockholders to Vote FOR Merger with Rocket Lab Corporation

Iridium Communications Inc. began distributing communications to certain stockholders on September 3, 2026, regarding the proposed acquisition by Rocket Lab Corporation. The company reiterated its previous communication of proxy materials for the special meeting scheduled for September 24, 2026, where stockholders will vote on the merger and related proposals.

The Board of Directors unanimously recommends a "FOR" vote on the merger and associated proposals. The company emphasized that a failure to cast a vote will have the same legal effect as a vote against the merger.

Stockholders who have not yet voted are encouraged to do so immediately via the Internet, telephone, or by returning the provided proxy card or voting instruction form. For any questions or assistance with voting, stockholders can contact Innisfree M&A Incorporated at (877) 825-8772 (toll-free from the U.S. and Canada) or +1 (412) 232-3651 (from other countries).

The communication also noted that Rocket Lab Corporation filed a Registration Statement on Form S-4, which includes Iridium's proxy statement and Rocket Lab's prospectus, with the SEC. This registration statement was declared effective on August 26, 2026, and the definitive proxy statement/final prospectus was sent to Iridium stockholders around the same date.