8-A12B
effective
Exchange Act registration
Registration filed to list the securities under the Exchange Act ahead of trading.
Follows EFFECT and registers the class of securities for exchange listing.
BlockchAIn Digital Infrastructure, Inc. filed Form 8-A12B to register its common stock on the NYSE American LLC. The filing references a prior prospectus (424B3) detailing a business combination involving mergers with Signing Day Sports, Inc. and One Blockchain LLC, resulting in a new entity with a complex share exchange structure. Key details from the previous filing include an exchange ratio, earnout provisions, and equity allocations, though the current 8-A12B focuses on registration requirements rather than transaction specifics.
2026-03-13 · 0001213900-26-027408
CERT
inactive
CERT
Pre-IPO filing captured from the SEC submission timeline.
Follows S-4/A in the pre-IPO sequence.
BlockchAIn Digital Infrastructure, Inc. filed a CERT form on 2026-03-13, replacing its previous 8-A12B filing. The current filing likely relates to a different securities registration, though details are obscured by unreadable text. The previous 8-A12B registered common stock for listing on NYSE American LLC.
2026-03-13 · 0001143313-26-000013
424B3
priced
Final prospectus
Final prospectus filed near launch with final deal terms.
Follows S-4/A and confirms the priced prospectus.
Price $7.50 · 99,099,083 shares
common
BlockchAIn Digital Infrastructure, Inc. is undergoing a business combination with Signing Day Sports, Inc. and One Blockchain LLC through a merger structure. The transaction involves exchanging Signing Day Sports shares for BlockchAIn common stock at an exchange ratio of 0.25368, with additional earnout shares contingent on 2026 financial performance. One Blockchain members will receive shares based on a formula, while Maxim Group LLC serves as financial advisor. The filing seeks shareholder approval for the merger, which will result in BlockchAIn becoming a publicly traded entity listed on the NYSE American.
2026-02-17 · 0001213900-26-017308
EFFECT
effective
SEC effectiveness notice
SEC declared the registration statement effective, allowing the offering to proceed.
Follows DRS/A and marks the registration effective.
BlockchAIn Digital Infrastructure, Inc. has received effectiveness for its S-4 registration statement, marking the official approval to proceed with its business combination. The filing includes Part II with indemnification provisions, exhibits, and updated corporate governance documents. The company plans to finalize the merger process following regulatory clearance.
2026-01-30 · 9999999995-26-000390
S-4/A
amended
S-4/A
Pre-IPO filing captured from the SEC submission timeline.
Updates the prior S-4 filing.
common · Use of proceeds to facilitate the business combination and related transactions
BlockchAIn Digital Infrastructure, Inc. is executing a business combination involving the merger of Signing Day Sports, Inc. and One Blockchain LLC, resulting in the issuance of BlockchAIn common shares to shareholders of both entities. The transaction includes an exchange ratio of 0.25368 for Signing Day Sports shares and potential earnout shares tied to 2026 financial performance. Maxim Group LLC serves as a financial advisor, and the deal is subject to regulatory approvals and market conditions.
2026-01-30 · 0001213900-26-009858
S-4/A
amended
S-4/A
Pre-IPO filing captured from the SEC submission timeline.
Updates the prior DRS/A filing.
BlockchAIn Digital Infrastructure, Inc. filed Amendment No. 3 to its S-4 registration statement to update exhibits related to its business combination with Signing Day Sports, Inc. and One Blockchain LLC. The filing outlines the merger structure, exchange ratios for shareholders, and additional share issuances tied to financial performance metrics. The amendment focuses on procedural updates rather than substantive changes to the transaction terms.
2026-01-22 · 0001213900-26-006393
S-4/A
amended
S-4/A
Pre-IPO filing captured from the SEC submission timeline.
Updates the prior DRS/A filing.
Blockchain will receive BlockchAIn common share · Use of proceeds To facilitate the business combination and related transactions.
BlockchAIn Digital Infrastructure, Inc. is undergoing a business combination involving the merger of Signing Day Sports, Inc. and One Blockchain LLC. The transaction involves the exchange of Signing Day Sports shares for BlockchAIn common stock, with an exchange ratio of 0.25368. One Blockchain members will receive shares based on a formula involving Signing Day Sports' fully-diluted shares. Additional earnout shares may be issued to One Blockchain securityholders if BlockchAIn meets financial targets. Maxim Group LLC serves as a financial advisor and will receive shares as part of the transaction. The combined entity's ownership structure includes significant stakes for One Blockchain securityholders and Jerry Tang, who will lead the company as CEO.
2026-01-21 · 0001213900-26-005984
S-4/A
amended
S-4/A
Pre-IPO filing captured from the SEC submission timeline.
Updates the prior DRS filing.
Common Stock · Exchange NYSE American · Ticker BLOCK · Use of proceeds Proceeds will be used for the business combination and related transactions.
BlockchAIn Digital Infrastructure, Inc. is proceeding with a business combination involving the merger of Signing Day Sports, Inc. and One Blockchain LLC. The transaction involves exchanging Signing Day Sports shares for BlockchAIn common stock and issuing shares to One Blockchain securityholders. The deal includes earnout provisions tied to BlockchAIn's 2026 financial performance and advisory fees for Maxim Group LLC. The filing also outlines adjustments to share counts and valuations based on the issuance of Additional Termination Shares.
2025-12-23 · 0001213900-25-125415
S-4
filed
S-4
Pre-IPO filing captured from the SEC submission timeline.
First tracked pre-IPO filing for this issuer.
Price $3.70 · 63,519,627 shares
Common · Exchange NYSE American · Ticker BLOCK · Use of proceeds For the business combination and related transaction costs
BlockchAIn Digital Infrastructure, Inc. filed an S-4 registration statement for a business combination involving the merger of Signing Day Sports, Inc. and One Blockchain LLC. The transaction involves two mergers: Merger Sub I merging with Signing Day Sports (with Signing Day Sports surviving) and Merger Sub II merging with One Blockchain (with One Blockchain surviving). Shareholders of both companies will receive BlockchAIn common shares. The deal includes earnout shares contingent on BlockchAIn's 2026 net income and advisory fees to Maxim Group LLC. The filing also outlines potential adjustments to share counts and valuations if certain conditions (e.g., NYSE American approval) are not met.
2025-12-01 · 0001213900-25-116271
DRS/A
amended
Amended draft registration statement
Updated draft registration filed before the public launch.
Updates the prior DRS/A filing.
BlockchAIn Digital Infrastructure, Inc. is undergoing a business combination involving the merger of Merger Sub I with Signing Day Sports, Inc., and Merger Sub II with One Blockchain LLC. Shareholders of Signing Day Sports and One Blockchain will receive BlockchAIn common shares. The transaction includes earnout provisions tied to BlockchAIn's 2026 financial performance and advisory fees for Maxim Group LLC. The combined entity aims to list on the NYSE American under the ticker [AIB].
2025-09-24 · 0001213900-25-091225
DRS/A
amended
Amended draft registration statement
Updated draft registration filed before the public launch.
Updates the prior DRS filing.
BlockchAIn Digital Infrastructure, Inc. is proposing a business combination involving the merger of Signing Day Sports, Inc. and One Blockchain LLC. The transaction includes two mergers: Merger Sub I merging with Signing Day Sports (with Signing Day Sports surviving) and Merger Sub II merging with One Blockchain (with One Blockchain surviving). Signing Day Sports stockholders will receive BlockchAIn common shares, while One Blockchain members will receive shares based on a formula tied to Signing Day Sports' fully diluted shares. Additional earnout shares may be issued to Tiger Cloud and VCV Digital if BlockchAIn meets financial targets. Maxim Group LLC serves as a financial advisor and will receive shares as part of the transaction. The merger requires shareholder approvals and is subject to regulatory and other conditions.
2025-08-28 · 0001213900-25-081741
DRS
filed
Draft registration statement
Draft registration filed confidentially before the public launch.
First tracked pre-IPO filing for this issuer.
BlockchAIn Digital Infrastructure, Inc. is undergoing a business combination with Signing Day Sports, Inc. and One Blockchain LLC through a merger structure. The transaction involves exchanging Signing Day Sports shares for BlockchAIn common stock, converting options/warrants, and issuing additional shares to One Blockchain securityholders based on future earnings. The deal requires stockholder approvals, with BlockchAIn planning to list on the NYSE American. The merger would result in BlockchAIn's existing shareholders (including Jerry Tang) controlling ~96.7% of the combined entity.
2025-07-08 · 0001213900-25-062019