X0306 4 2019-11-12 0 0001373670 Green Brick Partners, Inc. GRBK 0001622817 Olsen Kathleen 2805 DALLAS PARKWAY, SUITE 400 PLANO TX 75093 1 0 0 0 Common Stock 2019-11-12 4 S 0 4000 11.2702 D 57164 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.21 to $11.37, inclusive. The Reporting Person undertakes to provide to Green Brick Partners, Inc. (the "Issuer"), any security holder of the Issuer, 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 range set forth in this footnote. /s/ Kathleen Olsen 2019-11-13