Registration 333-293667
Underwriters: Clear Street LLC
Security
Dune Acquisition Corp III · CPPGU
CPPGUUNKNOWNUnitCurrentCIK 2095476Updated Oct 6, 2026
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About the company
We are a blank check company incorporated as a Cayman Islands exempted company and incorporated for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses, which we refer to throughout this prospectus as our initial business combination. We have not selected any business combination target and we have not, nor has anyone on our behalf, had any substantive discussions, directly or indirectly, with any business combination target regarding a transaction with our company. We may pursue an initial business combination with a target business in any industry or geographic location but expect to target opportunities and companies that are in the digital assets, sports & entertainment, software as a service (“SaaS”) and artificial intelligence (“AI”) sectors.
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Filing attachments
ea026422406ex4-1.htm · S-1/A · 2026-07-28
EX-4.1 4 ea026422406ex4-1.htm SPECIMEN UNIT CERTIFICATE Exhibit 4.1 NUMBER UNITS U- SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP G2867R 127 DUNE ACQUISITION CORPORATION III UNITS CONSISTING OF ONE CLASS A ORDINARY SHARE AND ONE-HALF OF ONE REDEEMABLE WARRANT, EACH WHOLE WARRANT ENTITLING THE HOLDER TO PURCHASE ONE CLASS A ORDINARY SHARE THIS CERTIFIES THAT ________ is the owner of ___________ Units of Dune Acquisition Corporation III, a Cayman Islands exempted company (the “Compa…
Read attachment ↗ea026422406ex4-2.htm · S-1/A · 2026-07-28
EX-4.2 5 ea026422406ex4-2.htm SPECIMEN ORDINARY SHARE CERTIFICATE Exhibit 4.2 [Form of Class A Ordinary Share Certificate] NUMBER NUMBER C-SHARES SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP G2867R 101 DUNE ACQUISITION CORPORATION III INCORPORATED UNDER THE LAWS OF THE CAYMAN ISLANDS CLASS A ORDINARY SHARES This Certifies that ____________________ is the owner of ________________________ FULLY PAID AND NON-ASSESSABLE CLASS A ORDINARY SHARES OF PAR VAL…
Read attachment ↗ea026422406ex4-4.htm · S-1/A · 2026-07-28
EX-4.4 6 ea026422406ex4-4.htm FORM OF WARRANT AGREEMENT BETWEEN CONTINENTAL STOCK TRANSFER & TRUST COMPANY AND THE REGISTRANT Exhibit 4.4 WARRANT AGREEMENT THIS WARRANT AGREEMENT (this “Agreement”), dated as of [_________], 2026, is by and between Dune Acquisition Corporation III, a Cayman Islands exempted company (the “Company”), and Continental Stock Transfer & Trust Company, a New York corporation, as warrant agent (in such capacity, the “Warrant Agent,” and also referred to herein as t…
Read attachment ↗ea026422402ex4-1_dune3.htm · S-1 · 2026-02-24
EX-4.1 5 ea026422402ex4-1_dune3.htm SPECIMEN UNIT CERTIFICATE. Exhibit 4.1 NUMBER UNITS U- SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP G2867R 127 DUNE ACQUISITION CORPORATION III UNITS CONSISTING OF ONE CLASS A ORDINARY SHARE AND ONE-THIRD OF ONE REDEEMABLE WARRANT, EACH WHOLE WARRANT ENTITLING THE HOLDER TO PURCHASE ONE CLASS A ORDINARY SHARE THIS CERTIFIES THAT ________ is the owner of ___________ Units of Dune Acquisition Corporation III, a Cayman Islands exempted company (th…
Read attachment ↗ea026422402ex4-2_dune3.htm · S-1 · 2026-02-24
EX-4.2 6 ea026422402ex4-2_dune3.htm SPECIMEN ORDINARY SHARE CERTIFICATE. Exhibit 4.2 [Form of Class A Ordinary Share Certificate] NUMBER NUMBER C-SHARES SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP G2867R 101 DUNE ACQUISITION CORPORATION III INCORPORATED UNDER THE LAWS OF THE CAYMAN ISLANDS CLASS A ORDINARY SHARES This Certifies that ____________________ is the owner of ________________________ FULLY PAID AND NON-ASSESSABLE CLASS A ORDINARY SHARES OF …
Read attachment ↗ea026422402ex4-4_dune3.htm · S-1 · 2026-02-24
EX-4.4 7 ea026422402ex4-4_dune3.htm FORM OF WARRANT AGREEMENT BETWEEN CONTINENTAL STOCK TRANSFER & TRUST COMPANY AND THE REGISTRANT. Exhibit 4.4 WARRANT AGREEMENT THIS WARRANT AGREEMENT (this “Agreement”), dated as of [_________], 2026, is by and between Dune Acquisition Corporation III, a Cayman Islands exempted company (the “Company”), and Continental Stock Transfer & Trust Company, a New York corporation, as warrant agent (in such capacity, the “Warrant Agent,” and also referred to here…
Read attachment ↗