X0306 4 2022-04-20 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 2022-04-20 4 A 0 5885 0.00 A 5885 D Common Stock 40336 D Common Stock 3151 D Common Stock 4032 D Common Stock 3923 D Employees Stock Option (right to buy) 14.835 2029-05-22 Common Stock 50000 50000 D The reported item represents an award of restricted stock, which vests in three approximately equal installments on December 31, 2022, December 31, 2023, and December 31, 2024. The reported item represents an award of restricted stock which vests in two equal installments beginning on the first anniversary of the December 31, 2020 grant date. As of the date of this report, 3,151 shares have vested. The remaining 3,151 shares of restricted common stock under this award vest on the second anniversary of the grant date, or December 31, 2022. The reported item represents an award of restricted stock which vests in three equal installments beginning on December 31, 2021. As of the date of this report, 2,016 shares of restricted stock have vested. The remaining 4,032 shares of restricted stock under this award vest in equal installments on December 31, 2022 and 2023. The reported item represents options which vest 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 2022-04-22