Company: ATLN
Filing Date: 2025-12-10
Form Type: S-3/A
Source: 0001213900-25-120180
Chunk: 1

Company: ATLANTIC INTERNATIONAL CORP.
Filing Date: 2025-12-10
Form: S-3/A
Chunk 1
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 of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☐

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

| Large accelerated filer | ☐ | Accelerated filer         | ☐ |
| Non-accelerated filer   | ☒ | Smaller reporting company | ☒ |
|                         |   | Emerging Growth Company   | ☒ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of Securities Act. ☐

<div align='center'>EXPLANATORY NOTE</div>

This registration statement is a replacement registration statement being filed pursuant to Rule 415(a)(6) under the Securities Act of 1933, as amended (the “Securities Act”), with respect to securities that remain unsold under the registrant’s Registration Statement on Form S-3 (File No. 333-268319), as amended, originally declared effective on December 8, 2022 (the “Prior Registration Statement”). Pursuant to Rule 415(a)(5)(ii) under the Securities Act, by filing this registration statement on Form S-3, the Company may issue and sell securities covered by the Prior Registration Statement until the earlier of (i) the effective date of this registration statement and (ii) June 6,