Dune Acquisition Corp III Filed SPAC Primary

What the company does

Dune Acquisition Corporation III is a blank check company incorporated as a Cayman Islands exempted company 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, nor has anyone on its behalf, had any substantive discussions with any potential target. It may pursue an initial business combination with a business in any industry or geographic location.

Underwriters

Extracted from S-1/A 0001213900-26-092718, filed Aug 21, 2026 and verified against that filing text.

Key risk factors

• Inability to consummate a business combination within the completion window

  “If we are unable to consummate our initial business combination within the completion window, our public shareholders may be forced to wait beyond 18 months before redemption from our trust account.”

• Immediate and substantial dilution to public shareholders

  “Because our sponsor acquired the founder shares at a nominal price of approximately $0.004 per founder share, our public shareholders will incur an immediate and substantial dilution upon the closing of this offering.”

• Shareholder redemption limitations

  “If we seek shareholder approval of our initial business combination and we do not conduct redemptions in connection with our initial business combination pursuant to the tender offer rules, our amended and restated memorandum and articles of association provides that a public shareholder, together with any affiliate of such shareholder or any other person with whom such shareholder is acting in concert or as a "group" (as defined under Section 13 of the Exchange Act), will be restricted from redeeming its shares with respect to more than an aggregate of 20% of the shares sold in this offering, without our prior consent.”

• Additional issuances causing dilution

  “We may issue additional Class A ordinary shares or preference shares to complete our initial business combination or under an employee incentive plan after completion of our initial business combination.”

• Conflicts of interest of sponsor and management

  “Our sponsor and members of our management team will directly or indirectly own founder shares and/or private placement warrants following this offering and, accordingly, may have a conflict of interest in determining whether a particular target business is an appropriate business with which to effectuate our initial business combination.”

• No protections of Rule 419

  “This offering is not being conducted in compliance with Rule 419 promulgated under the Securities Act. Accordingly, you will not be entitled to protections normally afforded to investors in Rule 419 blank check offerings.”

• No public market for securities

  “Currently, there is no public market for our units, Class A ordinary shares or warrants. We have applied to have our units listed on The Nasdaq Global Market, or Nasdaq, under the symbol "CPPGU," on or promptly after the date of this prospectus. We cannot guarantee that our securities will be approved for listing on Nasdaq.”