X0508 4 2023-08-02 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 0 Common Stock 2023-08-02 4 A 0 8580 0.00 A 75681 D Common Stck 14.835 2029-05-22 Common Stock 50000 50000 D This is an inadvertent late filing due to administrative delays The reported item represents the vesting of performance-based stock granted on November 24, 2020, net of any shares withheld. Performance award amount determined based on metrics in respect of the issuer's financial results over a three-year performance period ending in 2022. 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/ Ali Jefferson, as Attorney-in-Fact for Timothy K. Schools 2023-09-08