X0508 4 2026-02-26 0 0001876042 Circle Internet Group, Inc. CRCL 0001818008 Fox-Geen Jeremy C/O CIRCLE INTERNET GROUP, INC. ONE WORLD TRADE CENTER, 87TH FLOOR NEW YORK NY 10007 0 1 0 0 Chief Financial Officer 1 Class A Common Stock 2026-02-26 4 M 0 14400 10.11 A 308967 D Class A Common Stock 2026-02-26 4 S 0 47908 90 D 261059 D Stock Option (Right to Buy) 10.11 2026-02-26 4 M 0 14400 0 D 2031-05-19 Class A Common Stock 14400 1167206 D The reported sale was made pursuant to a 10b5-1 trading plan. Represents 39,564 shares of Class A common stock held outright by the Reporting Person and 221,495 shares of Class A common stock subject to outstanding restricted stock units. 1/4 of the shares of Class A Common stock subject to the option award vested upon the one-year anniversary following the vesting commencement date and the remaining portion vest in 36 successive equal monthly installments thereafter, in each case, subject to the Reporting Person's continued service relationship with Circle Internet Group, Inc. through each applicable vesting date. /s/ Sarah K. Wilson, as Attorney-in-Fact for Jeremy Fox-Geen 2026-03-02