Company: CRCL
Filing Date: 2025-06-04
Form Type: S-1MEF
Source: 0000950103-25-007009
Chunk: 1

Company: Circle Internet Group, Inc.
Filing Date: 2025-06-04
Form: S-1MEF
Chunk 1
---
 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. ☒ 333-286310

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 post-effective amendment filed pursuant to Rule 462(d)
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. ☐

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 the Securities Act. ☐

This registration statement shall become effective upon filing with the Securities and Exchange Commission in accordance with Rule 462(b) under the Securities Act.

<div align='center'>EXPLANATORY NOTE AND INCORPORATION OF CERTAIN INFORMATION BY REFERENCE</div>

Circle Internet Group, Inc., a Delaware corporation (the “Registrant”),
is filing this Registration Statement with the Securities and Exchange Commission (the “Commission”) pursuant to Rule 462(b)
under the Securities Act of 1933, as amended. This Registration Statement relates to the public offering of securities contemplated by
the Registrant’s Registration Statement on Form S-1 (File No. 333-286310) (as amended, the “Prior Registration Statement”),
which the Commission declared effective on June 4, 2025.

The Registrant is filing this Registration Statement for the sole purpose
of registering 2,300,000 additional shares of its Class A