X0609 4 2026-05-20 0 0001709442 FIRSTSUN CAPITAL BANCORP FSUN 0001225062 CARTER MOLLIE H false C/O FIRSTSUN CAPITAL BANCORP 1400 16TH STREET, SUITE 250 DENVER CO 80202 1 1 0 0 Executive Chair 0 Common Stock, $0.0001 par value 2026-05-20 5 G 0 E 5165 0 D 0 D Common Stock, $0.0001 par value 514290 I By self, as Trustee Common Stock, $0.0001 par value 666500 I By self, as Trustee Common Stock, $0.0001 par value 1025450 I By self, as Trustee Common Stock, $0.0001 par value 353400 I By self, as Trustee On May 20, 2026, the reporting person transferred 5,165 shares of FSUN common stock to the Mollie H. Carter Trust Agreement for no consideration. Shares held in the Mollie H. Carter Trust Agreement, over which the Reporting Person serves as trustee. A member of the Reporting Person's immediate family is the beneficiary of this trust. Shares held in the Wood Racket Trust FBO Mollie H. Carter Family, over which the Reporting Person serves as co-trustee. The Reporting Person and a member of the Reporting Person's immediate family are the beneficiaries of this trust. Shares held in the Twin Meadow VHC Trust, over which the Reporting Person serves as trustee. A member of the Reporting Person's immediate family is the beneficiary of this trust. Shares held in the Orion VHC Trust FBO Mollie H. Carter Family, over which the Reporting Person serves as co-trustee. The Reporting Person and a member of the Reporting Person's immediate family are the beneficiaries of this trust. /s/ Kelly C. Rackley, by power of attorney 2026-08-10