Company: ATLN
Filing Date: 2025-08-22
Form Type: 424B3
Source: 0001213900-25-079897
Chunk: 1

Company: ATLANTIC INTERNATIONAL CORP.
Filing Date: 2025-08-22
Form: 424B3
Chunk 1
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. This Sticker Supplement and the Prospectus and documents incorporated therein by reference contain forward-looking statements
regarding events, conditions, and financial trends that may affect our plan of operation, business strategy, operating results, and financial
position. You are cautioned that any forward-looking statements are not guarantees of future performance and are subject to risks and
uncertainties. Actual results may differ materially from those included within the forward-looking statements as a result of various factors.
Cautionary statements in the “Risk Factors” section of the Prospectus and in documents incorporated by reference into the
Prospectus identify important risks and uncertainties affecting our future, which could cause actual results to differ materially from
the forward-looking statements made or included in this Sticker Supplement and the Prospectus.

<div align='center'>AMENDED SELLING SHAREHOLDERS TABLE</div>

On July 22, 2024 we filed a Prospectus in accordance
with Rule 424(b)(3) of the Securities Act of 1933, as amended. The Prospectus included 4,704,098 Shares to be held in escrow
for the legacy shareholders of the Company who may be issued shares pursuant to a Settlement Offer which has now expired. This Sticker
Supplement is being filed to disclose the following: The Board of Directors authorized the release of shares in the aggregate amount of
1,681,860 shares from the shares held in escrow to: Perri Sason (250,000 shares), Jasck Bessman (134,000 shares), Ofer E. Gabby Irrevocable
Trust (33,000 shares), Jeffrey Jagid (1,000,000 shares) and Michael Tenore (264,860 shares), as set forth in the attached Selling Shareholders
table.

<div align='center'>The date of this Sticker Supplement to Prospectus
is August 22, 2025.

2

SELLING SHAREHOLDERS</div>

The Shares offered by the
Selling Shareholders include those issued to the Selling Shareholders pursuant to the Merger Agreement and as Merger Consideration
(as defined in the Merger Agreement) or otherwise. For additional information regarding the issuances of the Shares, see
“Description of the Shares” above. We are registering the Shares in order to permit the Selling Shareholders to
offer the shares for resale from time to time.

The table below lists the
Selling Shareholders’ information regarding the beneficial ownership of the shares of common stock