Circle Internet Group, Inc.

Footnotes

F1

The reported sale was made pursuant to a 10b5-1 trading plan.↩ 1↩ 2↩ 3↩ 4↩ 5↩ 6↩ 7↩ 8↩ 9↩ 10↩ 11↩ 12↩ 13↩ 14↩ 15↩ 16↩ 17↩ 18↩ 19↩ 20↩ 21↩ 22↩ 23↩ 24↩ 25↩ 26↩ 27↩ 28↩ 29↩ 30

F2

These shares were sold in multiple transactions at prices ranging from $64.50 to $65.85, inclusive. The weighted average sale price was $65.50. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2↩ 3

F3

These shares were sold in multiple transactions at prices ranging from $65.91 to $66.90, inclusive. The weighted average sale price was $66.53. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2↩ 3

F4

These shares were sold in multiple transactions at prices ranging from $66.91 to $67.90, inclusive. The weighted average sale price was $67.31. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2↩ 3

F5

These shares were sold in multiple transactions at prices ranging from $67.92 to $68.91, inclusive. The weighted average sale price was $68.40. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2↩ 3

F6

These shares were sold in multiple transactions at prices ranging from $68.92 to $69.86, inclusive. The weighted average sale price was $69.34. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2↩ 3

F7

These shares were sold in multiple transactions at prices ranging from $69.92 to $70.90, inclusive. The weighted average sale price was $70.36. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2↩ 3

F8

These shares were sold in multiple transactions at prices ranging from $70.99 to $71.98, inclusive. The weighted average sale price was $71.50. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2↩ 3

F9

These shares were sold in multiple transactions at prices ranging from $71.99 to $72.98, inclusive. The weighted average sale price was $72.53. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2↩ 3

F10

These shares were sold in multiple transactions at prices ranging from $72.99 to $73.95, inclusive. The weighted average sale price was $73.58. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2↩ 3

F11

These shares were sold in multiple transactions at prices ranging from $74.00 to $74.21, inclusive. The weighted average sale price was $74.07. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.↩ 1↩ 2

F12

Represents 13,286 shares of Class A common stock held outright by the reporting person and 208,069 shares of Class A common stock issuable upon the vesting of restricted stock units.↩ 1

F13

Represents shares of Class A common stock held through an irrevocable non-grantor trust, of which the Reporting Person's legal counsel is the sole trustee and the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class A common stock.↩ 1↩ 2↩ 3↩ 4↩ 5↩ 6↩ 7↩ 8↩ 9↩ 10↩ 11↩ 12↩ 13↩ 14↩ 15↩ 16↩ 17↩ 18↩ 19↩ 20

F14

Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.↩ 1↩ 2↩ 3

F15

Represents shares of Class B common stock held through an irrevocable grantor trust, of which the Reporting Person is the sole trustee and the Reporting Person is beneficiary. The Reporting Person is entitled to annuity payments from the trust, with any remaining assets to be distributed to the Allaire 2025 GRAT Remainder Trust, of which the Reporting Person's children are beneficiaries. The Reporting Person disclaims beneficial ownership of the shares of Class B common stock except to the extent of his pecuniary interest therein.↩ 1↩ 2↩ 3↩ 4