X0306 4 2020-04-30 0 0001676479 CapStar Financial Holdings, Inc. CSTR 0001081893 BOTTORFF DENNIS 1201 DEMONBREUN STREET, SUITE 700 NASHVILLE TN 37203 1 0 0 0 Common Stock 2020-04-30 4 P 0 4380 11.37 A 300058 D Common Stock 6331 D Common Stock 1343 D Common Stock 286 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $11.30 to $11.42. The reporting person undertakes to provide to CapStar Financial Holdings Inc., any security holder of CapStar Financial Holdings Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote. 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. 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, 671 shares have vested. The remaining 1,343 shares of restricted stock under this award vest in approximately equal installments on the second and third anniversaries of the grant date, or March 6, 2021 and March 6, 2022, 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, 2018 grant date. As of the date of this report 570 shares have vested. The remaining 286 shares vest on the third anniversary of the March 6, 2018 grant date, or March 6, 2021. /s/ Rob Anderson, as Attorney-in-Fact for Dennis C. Bottorff 2020-05-04