X0306 4 2023-01-18 0 0001676479 CapStar Financial Holdings, Inc. CSTR 0001660219 SCHOOLS TIMOTHY KYLE 1201 DEMONBREUN ST SUITE 700 NASHVILLE TN 37203 1 1 0 0 Chief Executive Officer Common Stock 2023-01-18 4 A 0 11830 17.75 A 67101 D Employees Stock Option (right to buy) 14.835 2029-05-22 Common Stock 50000 50000 D This is an inadvertent late filing due to an administrative error. The reported item represents the shares granted as of January 18, 2023 which will vest over a three year period with the first vesting date of December 31, 2023. The reported item represents options which vested in three approximately equal annual installments beginning on the first anniversary of the May 22, 2019 grant date. /s/ Jeffrey L. Moody, as Attorney-in-Fact for Timothy K. Schools 2023-03-01