Stock Markets May 18, 2026 05:21 PM

Iron Dome Acquisition I Corp. raises $150 million in IPO of units

SPAC lists on Nasdaq with plans to pursue deals in cybersecurity, defense tech, AI and data infrastructure

By Nina Shah IDACU

Iron Dome Acquisition I Corp. completed a $150 million initial public offering by selling 15 million units at $10 each. The special purpose acquisition company began trading its units on the Nasdaq Global Market on May 15, 2026, and expects its Class A shares and warrants to trade separately under the ticker symbols IDAC and IDACW once separation occurs.

Iron Dome Acquisition I Corp. raises $150 million in IPO of units
IDACU

Key Points

  • Iron Dome sold 15 million units at $10 each, raising $150 million; units began trading on Nasdaq Global Market on May 15, 2026.
  • Each unit contains one Class A ordinary share and one-half of a redeemable warrant; full warrants permit purchase of one Class A share at $11.50, subject to adjustment.
  • Company will target deals in cybersecurity, defense technology, artificial intelligence and data infrastructure; Santander served as sole book-running manager and underwriters hold a 45-day over-allotment option for up to 2.25 million units.

Iron Dome Acquisition I Corp. has closed its initial public offering, selling 15 million units at $10 per unit and raising $150 million, the company said in a statement.

The special purpose acquisition company - organized to pursue mergers, share exchanges, asset acquisitions or other business combinations - had its units start trading on the Nasdaq Global Market on May 15, 2026. Each unit comprises one Class A ordinary share and one-half of one redeemable warrant. Two half-warrants combine to form one whole warrant, which permits the holder to purchase one Class A ordinary share at an exercise price of $11.50, subject to customary adjustments.

Iron Dome Acquisition I Corp. indicated that once the securities that make up the units begin to trade separately, it expects the Class A ordinary shares and the warrants to appear on Nasdaq under the symbols "IDAC" and "IDACW," respectively.

The company said it was formed with the intent of identifying and completing business combinations. Management plans to concentrate its search on companies operating in cybersecurity, defense technology, artificial intelligence and data infrastructure.

Santander acted as the sole book-running manager for the offering. The underwriting agreement includes a 45-day option for the underwriters to buy up to 2.25 million additional units at the initial public offering price to cover over-allotments.

The Securities and Exchange Commission declared the registration statement for the securities effective on May 14, 2026.


Context and structure of the offering

The deal was structured as a unit offering at $10 per unit, each unit pairing a Class A ordinary share with one-half of a redeemable warrant. Holders of two half-warrants may exercise a whole warrant to acquire a Class A ordinary share at $11.50, subject to adjustment. The underwriters’ 45-day over-allotment option allows up to an additional 2.25 million units to be sold at the IPO price, should the syndicate choose to exercise that option.

Strategic focus

Iron Dome Acquisition I Corp. defined its intended acquisition targets broadly within four technology-related sectors: cybersecurity; defense technology; artificial intelligence; and data infrastructure. The company’s stated purpose is to complete a business combination via merger, asset purchase, share exchange or similar transaction.

Regulatory milestone

The registration statement for the securities was declared effective by the Securities and Exchange Commission on May 14, 2026, allowing the company to proceed with the public offering and subsequent trading that began the following day.

Risks

  • Timing and mechanics of separate trading for Class A shares and warrants are not guaranteed - markets impacted include Nasdaq listings and SPAC investors.
  • The 45-day over-allotment option could increase outstanding units if exercised, potentially diluting existing unit holders - capital markets and investor returns may be affected.
  • The company’s ability to complete a qualifying business combination is uncertain; intended target sectors (cybersecurity, defense technology, AI, data infrastructure) will be sensitive to the success of the SPAC’s deal execution.

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