X0306 4 2019-10-01 0 0001676479 CapStar Financial Holdings, Inc. CSTR 0001685035 Frist Julie D. 1201 DEMONBREUN STREET, SUITE 700 NASHVILLE TN 37203 1 0 0 0 Common Stock 2019-10-01 4 X 0 2000 10.00 A 226271 D Common Stock 2019-10-01 4 S 0 2000 16.64 D 224271 D Common Stock 1772 D Common Stock 1106 D Common Stock 266 D Common Stock 217643 I Charles A. and Patricia F. Elcan Common Stock 217642 I William R. and Jennifer R. Frist Option (right to buy) 10.00 2019-10-01 4 X 0 2000 0.00 D 2020-01-20 Common Stock 2000 4000 D The reported item represents shares that were sold pursuant to the reporting person's Rule 10b5-1 trading plan. The shares were sold in multiple transactions at prices ranging from $16.638 to $16.65. The reporting person undertakes to provide to CapStar Financial Holdings, any security holder of CapStar Financial Holdings, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold 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 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, 553 shares have vested. The remaining 1,106 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 common stock which was granted on February 28, 2017. As of the date of this report, 531 shares have vested. The remaining 266 shares of restricted stock under this award vest on the third anniversary of the February 28, 2017 grant date, or February 28, 2020. The reporting person disclaims beneficial ownership of these securities except to the extent of her 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. Charles A. Elcan and Patricia F. Elcan and William R. Frist and Jennifer R. Frist are the brothers-in-law and sisters-in-law of the reporting person. These options vested in four equal annual installments beginning one year after the January 20, 2010 grant date. /s/ Rob Anderson, as Attorney-in-Fact for Julie D. Frist 2019-10-03