X0306 5 2018-12-31 0 0 0 0001676479 CapStar Financial Holdings, Inc. CSTR 0001685233 Green Louis A. III 1201 DEMONBREUN STREET, SUITE 700 NASHVILLE TN 37203 1 0 0 0 Common Stock 2018-12-11 5 G 0 120 0.00 D 97905 D Common Stock 762 D Common Stock 475 D Common Stock 375 D Common Stock 2018-12-11 5 G 0 30 0.00 A 30 I Kendall Green Schell Custodian FBO Michael Schell Common Stock 2018-12-11 5 G 0 30 0.00 A 224 I Miller Zatarain Green Common Stock 2018-12-11 5 G 0 30 0.00 A 224 I Merrill McLean Green L A Green IV Cust Common Stock 2018-12-11 5 G 0 30 0.00 A 30 I Louis Anderson Green V Common Stock 911 I E. Kendall Green Common Stock 759 I FCC Cust Helen S. Green IRA Common Stock 574 I Deutsche Bank Cust Helen S. Green IRA Common Stock 1204 I L. Anderson Green IV Common Stock 217 I Morgan Stanley Cust FBO Louis Anderson Green IV Roth IRA Common Stock 820 I FCC Cust Louis A. Green Roth IRA Common Stock 600 I Louis A. Green IV Common Stock 3597 I FCC Cust Helen S. Green SEP IRA Common Stock 2186 I FCC Cust Louis A. Green III IRA Common Stock 600 I Kendall Green Schell 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. The reported item represents the unvested portion of an award of restricted common stock granted on February 28, 2017. As of the date of this report, 237 shares have vested. The remaining 475 shares of restricted common stock under this award vest on the second and third anniversaries of the February 28, 2017 grant date, or February 28, 2019 and February 28, 2020, respectively. The reported item represents the unvested portion of an award of restricted common stock granted on March 3, 2016. As of the date of this report, 750 shares have vested. The remaining 375 shares of restricted common stock under this award vest on the third anniversary of the March 3, 2016 grant date, or March 3, 2019. /s/ Rob Anderson, as Attorney-in-Fact for Louis A. Green III 2019-02-14