X0306 4 2017-02-17 0 0001564618 Independent Bank Group, Inc. IBTX 0001056313 SMITH G STACY 300 CRESCENT COURT SUITE 1111 DALLAS TX 75201 1 0 0 0 Common Stock 2017-02-17 4 S 0 10000 66.298 D 90151 D Common Stock 75000 I By SWC Capital, LP Reflects the weighted average sales price for the reported transactions. The shares were sold in multiple transactions at prices ranging from $66.20 to $66.40, inclusive. The Reporting Person will provide the SEC staff, the Issuer, or any security holder of the Issuer, upon request for same, with the full information regarding the number of shares sold at each separate price within the range specified. /s/ Jan Webb, Attorney in Fact 2017-02-17