Iridium Communications Inc. (NASDAQ:IRDM) saw its shares climb sharply in pre-market trading on Monday, June 29, 2026, as investors reacted to the proposed acquisition by Rocket Lab (NASDAQ:RKLB). The stock was last quoted at $52.56, up 20.77% from Friday's close of $43.52, but still trading at a $1.44 discount to Rocket Lab's $54 per share offer. This discount, representing a 2.7% spread, reflects market expectations regarding deal timing, regulatory approvals, and the inherent risks tied to Rocket Lab's stock price.
Rocket Lab shares were trading at $93.32 before the bell, comfortably within the collar range of $67.50 to $112.50 that governs the equity component of the deal. The acquisition, structured as a mix of cash and stock, values Iridium at an enterprise value of $8.0 billion, or approximately 9.2 times 2025 revenue of $871.7 million and 16.2 times 2025 EBITDA of $495 million. Iridium's robust 57% EBITDA margin underscores its strong cash generation capabilities, which Rocket Lab aims to leverage.
The transaction is expected to close by mid-2027, contingent on Iridium shareholder approval, clearance under the Hart-Scott-Rodino Antitrust Improvements Act, approval from the Federal Communications Commission (FCC) for license transfers, and various foreign regulatory sign-offs. Additionally, Rocket Lab's Form S-4 registration statement must become effective. The deal includes a $223.62 million breakup fee payable by Iridium under certain circumstances, and Iridium board members holding approximately 1.6% of shares have committed to support the merger and oppose any competing bids.
The pricing mechanics are tied to Rocket Lab's 10-day volume-weighted average price (VWAP) before closing. If the VWAP remains between $67.50 and $112.50, Iridium shareholders will receive 0.2893 Rocket Lab shares per Iridium share (calculated as $27 divided by the VWAP). Should the VWAP fall below $67.50, the exchange ratio is fixed at 0.4000 Rocket Lab shares per Iridium share; if it rises above $112.50, the ratio is capped at 0.2400. This collar structure introduces a layer of complexity for investors, as the final payout depends on Rocket Lab's stock performance.
Rocket Lab has secured $3.6 billion in 364-day senior secured bridge loan commitments from Deutsche Bank and Wells Fargo, with plans to use cash on hand and other debt and equity options to fund the acquisition. The method of financing could influence Rocket Lab's share price, which in turn affects the value Iridium shareholders ultimately receive. The deal has attracted mixed market flows, with traders buying both Iridium and Rocket Lab shares, while broader ETFs like the SPDR S&P 500 ETF Trust (NYSEARCA:SPY) slipped 0.50% and the Invesco QQQ Trust (NASDAQ:QQQ) fell 1.35% in early trading.
Iridium reported $219.1 million in revenue for the first quarter of 2026, with service revenue contributing $158 million, or 72% of the total. This recurring revenue stream provides a solid foundation for the combined entity. Rocket Lab CEO Sir Peter Beck hailed Iridium as the 'gold standard' for secure satellite connectivity, while Iridium CEO Matt Desch emphasized the importance of accelerating innovation to space. The next key filings to watch include Rocket Lab's Form S-4 and Iridium's proxy statement/prospectus, which will provide additional details on the merger.
