X0609 4 2026-10-20 0 0001981599 Centuri Holdings, Inc. CTRI 0002014298 Palazzo Ryan false 19820 NORTH 7TH AVENUE SUITE 120 PHOENIX AZ 85027 0 1 0 0 President, U.S. Gas 0 Common Stock 2026-10-20 4 F 0 385 20.51 D 12668 D Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of the first tranche of Restricted Stock Units (RSUs) granted on October 29, 2025, which settled for shares of the Company's common stock on a 1-for-1 basis. The price reflected above is the closing price of the Company's common stock on October 19, 2026. /s/ Jenarae N. Garland, as attorney-in-fact for Ryan Palazzo 2026-10-22