X0306 4 2021-12-14 0 0001676479 CapStar Financial Holdings, Inc. CSTR 0001685231 Flynn Thomas R. 1201 DEMONBREUN ST SUITE 700 NASHVILLE TN 37203 1 0 0 0 Common Stock 2021-12-14 5 G 0 E 90000 0.00 D 243796 I Bill R. & Katherine Flynn Common Stock 2021-12-14 5 G 0 E 90000 0.00 A 90000 I UTMA on behalf of minor children Common Stock 154380 D Common Stock 1769 D Common Stock 1411 D Common Stock 556 D Common Stock 132897 I Timothy Flynn Common Stock 6350 I UTMA on behalf of a minor child Common Stock 6350 I UTMA on behalf of a minor child Bona Fide Gift. No compensation was given to the donor for the gifting of shares. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. 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, 705 shares have vested. The remaining 1,411 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, 1,111 shares have vested. The remaining 556 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 Thomas R. Flynn 2021-12-16