X0306 4 2019-03-06 0 0001676479 CapStar Financial Holdings, Inc. CSTR 0001685232 Smith Stephen Buford 1201 DEMONBREUN STREET, SUITE 700 NASHVILLE TN 37203 1 0 0 0 Common Stock 2019-03-06 4 A 0 1605 0.00 A 1605 D Common Stock 38757 D Common Stock 488 D Common Stock 198 D Common Stock 3000 I Matthew Carlton Smith Family Trust Common Stock 3000 I Stephen B. Smith Jr. Family Trust The reported item represents an award of restricted stock which vests in three equal installments beginning on the first anniversary of the March 6, 2019 grant date. The reported item represents an award of restricted stock which vests in three equal installments beginning on the first anniversary of the March 6, 2018 grant date. As of the date of this report 244 shares have vested. The remaining 488 shares of restricted stock under this award vest in equal installments on the second and third anniversaries of the grant date, or March 6, 2020 and March 6, 2021, respectively. The reported item represents the unvested portion of an award of restricted stock on February 28, 2017. As of the date of this report 397 shares have vested. The remaining 198 shares of restricted stock under this award vest on the third anniversary of the grant date, or February 28, 2020. /s/ Rob Anderson, as Attorney-in-Fact for Stephen B. Smith 2019-03-08