Rocket Lab (RKLB) Stock Jumps 7% as $8B Iridium Deal Reshapes Space Sector

TLDR

• Rocket Lab is acquiring Iridium Communications in an $8 billion cash-and-stock deal
• Iridium holders will receive $27 in cash plus Rocket Lab stock per share
• The $54 per share offer is a 24% premium to Iridium’s Friday closing price
• Rocket Lab stock rose 6.9% in premarket trading; Iridium gained 1.7%
• The deal is expected to close mid-2027, pending shareholder and regulatory approval

Rocket Lab (RKLB) announced Sunday it will acquire Iridium Communications (IRDM) in a deal valued at approximately $8 billion. RKLB stock jumped 6.9% in premarket trading Monday, while IRDM climbed 1.7%.

Rocket Lab USA, Inc., RKLB

The offer is set at $54 per share — a combination of $27 in cash and the remainder in Rocket Lab stock, using a collar-based exchange ratio. That price represents a 24% premium to Iridium’s closing price on Friday.

Both company boards unanimously approved the deal. Rocket Lab will fund the cash portion through a mix of balance sheet cash and a committed $3.6 billion bridge loan.

Once the merger closes, Iridium will become an indirect wholly owned subsidiary of Rocket Lab and will be delisted from the Nasdaq Global Select Market.

Rocket Lab called the acquisition “one of the most transformative deals in the space industry.”

What Rocket Lab Gets

Iridium operates a low Earth orbit (LEO) satellite constellation using harmonized L-band spectrum. It serves more than 2.55 million subscribers across government, defense, aviation, maritime, and commercial markets.

By bringing Iridium in-house, Rocket Lab expects to cut third-party launch costs for replenishing and expanding Iridium’s constellation. That’s a direct cost saving that could improve margins over time.

The combined company would be vertically integrated — handling launch, satellite manufacturing, and on-orbit communications services under one roof.

Rocket Lab also sees growth opportunities in next-generation IoT, direct-to-device (D2D) communications, and resilient positioning, navigation and timing (PNT) services — areas where Iridium’s spectrum is a key asset.

The Road to Close

The deal is targeted to close in mid-2027. It still needs approval from both sets of shareholders and from regulators.

Director voting agreements have already been secured at both companies, which should smooth the shareholder vote process.

The $3.6 billion bridge loan commitment gives Rocket Lab the financial flexibility to get the cash portion of the deal done without needing to raise equity immediately.

The most recent analyst rating on IRDM is a Buy with a $60 price target — well above the $54 acquisition price, though that gap may reflect expectations the deal closes at the agreed terms.

Rocket Lab’s current market cap sits at around $4.6 billion, making this an acquisition roughly twice its own size — a bold financial undertaking for a company still scaling its launch business.

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