X0306 4 2018-02-27 0 0001676479 CapStar Financial Holdings, Inc. CSTR 0001685077 Hogan Dandridge W. 1201 DEMONBREUN STREET, SUITE 700 NASHVILLE TN 37203 0 1 0 0 See Remarks Common Stock 2018-02-27 4 F 0 3807 19.65 D 15498 D Common Stock 2018-03-02 4 F 0 679 17.92 D 14819 D Common Stock 2018-08-22 5 G 0 E 1123 0.00 D 13696 D Common Stock 2290 D Common Stock 1200 I Held in IRA Options 12.27 2022-12-01 Common Stock 50000 50000 D Options 11.41 2025-02-27 Common Stock 30000 30000 D The reported item represents the number of shares withheld by the issuer on February 27, 2018 to cover tax withholding obligations in connection with the vesting of 15,000 shares granted pursuant to an award of restricted stock on February 27, 2015. The reported item includes the unvested portion of an award of 100 shares of restricted stock granted on September 1, 2016. As of the date of this report, 33 shares have vested. The remaining shares of restricted common stock under this award vest on the second and third anniversaries of the grant date, or September 1, 2018 and September 1, 2019, respectively. The reported item represents the number of shares withheld by the issuer on March 2, 2018 to cover tax withholding obligations in connection with the vesting of 2,289 shares granted pursuant to an award of restricted stock on March 2, 2016. Following the reported transactions in this Form 4, the reporting person directly owns 14,819 shares of common stock not subject to restriction or vesting. The reported item represents the unvested portion of an initial award of 6,869 shares of restricted stock that vests in three equal annual installments beginning on the first anniversary of the March 2, 2016, grant date. As of the date of this report, 4,579 shares have vested. The remaining 2,290 shares of restricted stock under this award vest on the third anniversary of the grant date or March 2, 2019. These options vested in four equal annual installments beginning one year after the December 1, 2012 grant date. These options vest in four equal annual installments beginning one year after the February 27, 2015 grant date. President and Chief Operating Officer, CapStar Bank /s/ Dandridge W. Hogan 2018-08-24