X0508 4 2026-03-02 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 2026-03-02 4 A 0 118896 0 A 379955 D Class A Common Stock 2026-03-02 4 M 0 7200 10.11 A 387155 D Class A Common Stock 2026-03-02 4 S 0 7200 90 D 379955 D Class A Common Stock 2026-03-02 4 F 0 3877 83.44 D 376078 D Class A Common Stock 2026-03-03 4 S 0 4238 93 D 371840 D Stock Option (Right to Buy) 10.11 2026-03-02 4 M 0 7200 0 D 2031-05-19 Class A Common Stock 7200 1160006 D The restricted stock units were granted on March 2, 2026, and vest over four years in substantially equal quarterly installments, in each case, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date. The reported sale was made pursuant to a 10b5-1 trading plan. The shares of Class A common stock were withheld to satisfy the Reporting Person's tax withholding obligation upon the vesting of restricted stock units. Represents 39,564 shares of Class A common stock held outright by the reporting person and 332,276 shares of Class A common stock issuable upon the vesting of 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 2026-03-04