X0306 4 2022-01-27 0 0001676479 CapStar Financial Holdings, Inc. CSTR 0001081893 BOTTORFF DENNIS 1201 DEMONBREUN ST SUITE 700 NASHVILLE TN 37203 1 0 0 0 Common Stock 2022-01-27 4 A 0 3361 0.00 A 3361 D Common Stock 303126 D Common Stock 4612 D Common Stock 4221 D Common Stock 671 D The reported item represents an award of restricted stock which vests in three approximately equal installments beginning on the first anniversary of the January 27, 2022 grant date The reported item represents an award of restricted stock which vests in three approximately equal installments beginning on the first anniversary of the March 31, 2021 grant date. The reported item represents an award of restricted stock which vests in three approximately equal installments beginning on the first anniversary of the March 4, 2020 grant date. As of the date of this report, 2,110 shares have vested. The remaining 4,221 shares of restricted stock under this award vest in equal installments on the second and third anniversaries of the grant date, or March 4, 2022 and March 4, 2023, respectively. The reported item represents an award of restricted stock which vests in three approximately equal installments beginning on the first anniversary of the March 6, 2019 grant date. As of the date of this report, 1,343 shares have vested. The remaining 671 shares of restricted stock under this award vest on the third anniversary of the grant date, or March 6, 2022. /s/ Denis J. Duncan, as Attorney-in-Fact for Dennis C. Bottorff 2022-01-31