Rocket Lab Corporation filed a Form 8-K with the SEC on September 15, 2026, disclosing financing updates related to its pending acquisition of Iridium Communications Inc., including a credit agreement amendment and the full termination of a $3.6 billion bridge debt commitment.

Key Highlights

  • Bridge facility terminated: The $3.6 billion 364-day senior secured bridge term loan facility was formally terminated in full on September 15, 2026.
  • ATM Program proceeds: As of September 15, 2026, Rocket Lab had raised approximately $1.944 billion in gross proceeds through the sale of approximately 29.3 million shares under its at-the-market program.
  • Credit agreement amended: Iridium's existing credit agreement was amended via Consent and Amendment No. 4 so the Transaction will not constitute a Change of Control, allowing term loans to remain outstanding after closing.
  • Post-closing interest rate change: Upon closing, term loan interest rates will increase to SOFR plus a margin ranging from 2.50% to 3.00%, or base rate plus a margin ranging from 1.50% to 2.00%, based on the company's credit ratings.
  • Exit fee and prepayment premium added: An exit fee of 1.00% of term loans prepaid applies after the first anniversary of closing, and a 1.00% prepayment premium applies solely in the case of a repricing transaction.
  • Sufficiency of funding confirmed: According to the filing, net proceeds from the ATM Program, together with the Amended Iridium Credit Agreement and other available cash and funding sources, "will be sufficient to pay the anticipated cash payments required in connection with the completion of the Iridium Acquisition."

Rocket Lab Terminates Bridge Loan and Amends Iridium Credit Agreement Ahead of Merger Close

Rocket Lab Corporation (NASDAQ:RKLB) disclosed in the September 15, 2026 Form 8-K that it has resolved two key financing elements tied to its pending acquisition of Iridium Communications Inc. The merger was originally announced via a Form 8-K filed June 29, 2026, reflecting an Agreement and Plan of Merger dated June 28, 2026. Under that agreement, Iridium would ultimately become an indirect wholly owned subsidiary of Rocket Lab through a two-step merger process involving subsidiaries Ion Merger Sub I, Inc. and Ion Merger Sub II, LLC.

On the same date as this filing, Iridium Holdings LLC, Iridium, the borrower Iridium Satellite LLC, subsidiary guarantors, and the required lenders executed Consent and Amendment No. 4 to Iridium's Amended and Restated Credit Agreement, originally dated September 20, 2023, with Deutsche Bank AG New York Branch serving as administrative and collateral agent. According to the filing, the amendment expressly provides that the Transaction will not constitute a Change of Control under the amended credit agreement, and requires Rocket Lab USA, Inc., Rocket Lab's primary operating subsidiary, to provide a downstream guarantee of the credit agreement obligations upon closing. Additional amendments that take effect only upon consummation of the Transaction include revised interest rates, a post-first-anniversary exit fee of 1.00% of prepaid term loans, and a 1.00% prepayment premium applicable only to repricing transactions.

Separately, the $3.6 billion bridge debt commitment, which had been provided by Deutsche Bank AG New York Branch and Wells Fargo Bank, National Association under a commitment letter dated June 28, 2026, was formally terminated in full on September 15, 2026. The filing states the commitment was reduced automatically by net proceeds from the ATM Program and by the $1.775 billion in term loans available under the Amended Iridium Credit Agreement. As of September 15, 2026, Rocket Lab had raised approximately $1.944 billion in gross proceeds, before commissions and expenses, through the sale of approximately 29.3 million shares under the ATM Program, which was established under a replacement equity distribution agreement dated August 13, 2026. This 8-K was filed as a written communication pursuant to Rule 425 under the Securities Act.

What Was Disclosed

Rocket Lab's September 15, 2026 Form 8-K disclosed the termination of its $3.6 billion bridge loan commitment, an amendment to Iridium's existing credit agreement preventing a change-of-control event, and confirmation that approximately $1.944 billion in gross ATM Program proceeds had been raised through the sale of approximately 29.3 million shares.