X0609 4 2026-08-01 0 0001876042 Circle Internet Group, Inc. CRCL 0001874409 Schulz Tamara L false 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 2026-08-01 4 A 0 15559 0 A 101430 D Class A Common Stock 2026-08-01 4 F 0 1031 62.61 D 100399 D Class A Common Stock 2026-08-04 4 S 0 1194 60.08 D 99205 D The restricted stock units were granted on August 1, 2026 and vest in twelve quarterly pro rata 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 18,359 shares of Class A common stock held outright by the reporting person and 80,846 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 2026-08-04