Iridium Sets September 24 Vote on $54/Share Rocket Lab Merger; Details Collar, $223.6M Termination Fee
IRDM has more than doubled off its 52-week low of $15.645 on light trading volume (0.3× avg).
Summary
Iridium's definitive proxy statement sets a September 24, 2026 shareholder vote on the $54.00 per share Rocket Lab acquisition, detailing the exchange ratio collar, $223.6 million termination fee, $3.6 billion bridge financing, and expected mid-2027 completion.
Key Events · M&A and Partnerships · IRDM
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Special Meeting Set for September 24
Iridium stockholders of record as of August 21, 2026 will vote on the merger agreement at a virtual special meeting on September 24, 2026. Approval requires a majority of outstanding shares.
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Exchange Ratio Collar Mechanics Detailed
Each Iridium share converts to $27.00 cash plus 0.4000 RKLB shares if Rocket Lab trades at or below $67.50, a fixed $27.00 of stock value between $67.50 and $112.50, or 0.2400 shares at or above $112.50.
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$223.6M Termination Fee Disclosed
Iridium must pay Rocket Lab $223,620,000 (approximately 3.75% of implied equity value) if the deal terminates under specified circumstances, including accepting a superior proposal.
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$3.6B Bridge Facility Committed
Deutsche Bank and Wells Fargo have committed a 364-day senior secured bridge term loan facility of $3.6 billion to fund the cash consideration and refinance Iridium's existing debt.
Analysis · IRDM · Technology
This definitive proxy statement converts the previously announced Rocket Lab acquisition from a headline into an actionable shareholder event. The special meeting is set for September 24, 2026, with a record date of August 21, 2026. The exchange ratio collar mechanics are now fully specified: Iridium holders receive $27.00 cash plus 0.4000 RKLB shares if Rocket Lab trades at or below $67.50, a fixed $27.00 of stock value between $67.50 and $112.50, or 0.2400 shares above $112.50. The $223.6 million termination fee (3.75% of equity value) and the $3.6 billion Bridge Facility from Deutsche Bank and Wells Fargo are now disclosed. The HSR waiting period expired August 12, 2026, and FCC applications were filed August 10, 2026, with completion expected mid-2027. The Iridium board unanimously recommends approval, and directors and officers holding 1.6% of shares have signed support agreements. This filing provides the concrete terms and timeline that will drive shareholder voting and arbitrage positioning over the next month.
How filings like this one have moved
In the 30 days to Sep 14, 2026, 41.1% of the 372 measured filings Wiseek scored 9 moved their stock by 5% or more by the next session's close. The median move was -0.38%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, IRDM was trading at $46.70 on NASDAQ in the Technology sector, with a market capitalization of approximately $5B. The 52-week trading range was $15.65 to $57.18. This filing was assessed with positive market sentiment and an importance score of 9 out of 10.