Signing Day Sports, Inc. SGN shares moved higher Friday after the company revealed that BlockchAIn Digital Infrastructure Inc., a newly formed entity, has confidentially submitted a draft registration statement (Form S-4) with the U.S. Securities and Exchange Commission.

The move is part of an ongoing business combination agreement signed earlier this year between Signing Day Sports and BlockchAIn’s operating affiliate, One Blockchain LLC.

The transaction, first announced in April 2025 and formalized in May, aims to bring both companies under a holding structure, with the combined entity — known as PubCo — expected to list its common shares on the NYSE American.

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