X0508 4 2026-01-01 0 0001031308 BENTLEY SYSTEMS INC BSY 0001963448 Ballard Brock C/O BENTLEY SYSTEMS, INCORPORATED 685 STOCKTON DRIVE EXTON PA 19341 0 1 0 0 Chief Revenue Officer 0 Class B Common Stock 2026-01-01 4 F 0 2223 38.165 D 65977 D Represents shares withheld by the Issuer to cover taxes due by the Reporting Person upon the vesting of awards previously granted to the Reporting Person. Includes shares of Class B common stock acquired by the Reporting Person through the Bentley Systems, Incorporated Global Employee Stock Purchase Plan for an offering period ended on December 31, 2025 for which the Reporting Person's enrollment and contribution elections were made in June 2025. /s/ Michael T. Fischette, Attorney-in-Fact 2026-01-05