X0206 3 2020-03-05 0 0001676479 CapStar Financial Holdings, Inc. CSTR 0001806359 O'Bryan Jennie 1201 DEMONBREUN STREET, SUITE 700 NASHVILLE TN 37203 0 1 0 0 See Remarks Common Stock 698 D Common Stock 1396 D The reported item represents an award of restricted common stock which is fully vested upon issuance. The reported items represents an award of restricted common stock which vests in two equal installments beginning on the first anniversary of the January 31, 2020 grant date. Exhibit 24 - Power of Attorney Executive Vice President, Chief Culture Officer of CapStar Bank /s/ Jennie O'Bryan 2020-03-13