X0508 4 2026-02-01 0 0001876042 Circle Internet Group, Inc. CRCL 0001874409 Schulz Tamara L C/O CIRCLE INTERNET GROUP, INC. ONE WORLD TRADE CENTER, 87TH FLOOR NEW YORK NY 10007 0 1 0 0 Chief Accounting Officer 1 Class A Common Stock 2026-02-01 4 A 0 17555 0 A 100234 D Class A Common Stock 2026-02-02 4 F 0 697 63.93 D 99537 D Class A Common Stock 2026-02-03 4 S 0 1527 59.80 D 98010 D The restricted stock units were granted on February 1, 2026, and vest in 16 substantially equal monthly installments thereafter, in each case, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date. 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. The reported sale was made pursuant to a 10b5-1 trading plan. Represents 17,181 shares of Class A common stock held outright by the reporting person and 80,829 shares of Class A common stock issuable upon the vesting of restricted stock units. /s/ Sarah K. Wilson, as Attorney-in-Fact for Tamara Schulz 2026-02-03