RainRock Acquisition Corp. Filed SPAC Primary

What the company does

RainRock Acquisition Corp. is a blank check company incorporated as a Cayman Islands exempted company and formed for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. The company has not selected any business combination target and has not initiated substantive discussions with any target. It may pursue an initial business combination in any business or industry. The company is offering units consisting of Class A ordinary shares and Share Rights.

Use of proceeds

Of the proceeds from this offering and the sale of the private placement units, $150,750,000 (or $173,250,000 if the over-allotment option is exercised in full) will be placed into a U.S.-based trust account. Approximately $1,450,000 (or $1,225,000 if the over-allotment option is exercised in full) of net proceeds will not be held in the trust account and will be used for legal, accounting, due diligence and other expenses in connection with any business combination, financial reporting, NASDAQ listing and filing fees, payment for office space and administrative services, directors' and officers' liability insurance, and miscellaneous expenses.

Underwriters

Extracted from S-1 0001213900-26-095969, filed Sep 1, 2026 and verified against that filing text.

Key risk factors

• Blank check company with no selected target

  “We have not selected any business combination target and we have not, nor has anyone on our behalf, initiated any substantive discussions, directly or indirectly, with any business combination target.”

• Investor protections differ from Rule 419 offerings

  “Investors will not be entitled to protections normally afforded to investors in Rule 419 blank check offerings.”

• Dilution from nominal founder share purchase price

  “The nominal purchase price paid by our sponsor for the founder shares may result in significant dilution to the implied value of your public shares upon the consummation of our initial business combination, and our sponsor is likely to make a substantial profit on its investment in us in the event we consummate an initial business combination, even if the business combination causes the trading price of our ordinary shares to materially decline.”

• Sponsor ownership may change before business combination

  “The ownership interest of our sponsor may change, and our sponsor may divest its ownership interest in us before identifying a business combination, which could deprive us of key personnel and advisors.”