X0306 4 2018-12-10 0001358762 REATA PHARMACEUTICALS INC RETA 0001402856 McGaughy R Kent Jr C/O CPMG, INC. 2000 MCKINNEY AVE, STE 2125 DALLAS TX 75201 true true Class A common stock 2018-12-10 4 P 0 26174 57.9329 A 2938697 I See Footnote Class A common stock 2018-12-10 4 P 0 1078 58.6218 A 2939775 I See Footnote Class A common stock 2018-12-10 4 P 0 29347 59.5303 A 2969122 I See Footnote Class A common stock 2018-12-11 4 P 0 52809 60.0719 A 3021931 I See Footnote Class A common stock 2018-12-12 4 P 0 1418 59.8952 A 3023349 I See Footnote Class A common stock 4591 I By Lagos Trust Class A common stock 280 I By Traweek Children's Trust Class A common stock 2739 I See footnote Class A common stock 25004 D These shares of Class A common stock are held in various funds for which CPMG, Inc. serves as investment manager. The Reporting Person is a co-director and co-shareholder of CPMG, Inc. The Reporting Person is trustee of Lagos Trust. The Reporting Person is trustee of Traweek Children's Trust. These shares of Class A common stock are held in escrow for a charitable donee by American Stock Transfer & Trust Company, LLC. The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. This price reflects the weighted average purchase price for open-market purchases on December 10, 2018, within a $1.00 range. The actual prices for these transactions range from $57.235 to $58.23, inclusive. The Reporting Person undertakes to provide upon request by the Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of Shares purchased at each separate price within the ranges set forth in footnotes (6) through (10) to this Form 4. This price reflects the weighted average purchase price for open-market purchases on December 10, 2018, within a $1.00 range. The actual prices for these transactions range from $58.235 to $59.17, inclusive. This price reflects the weighted average purchase price for open-market purchases on December 10, 2018, within a $1.00 range. The actual prices for these transactions range from $59.24 to $59.80, inclusive. This price reflects the weighted average purchase price for open-market purchases on December 11, 2018, within a $1.00 range. The actual prices for these transactions range from $59.52 to $60.145, inclusive. This price reflects the weighted average purchase price for open-market purchases on December 12, 2018, within a $1.00 range. The actual prices for these transactions range from $59.84 to $59.98, inclusive. /s/ R. Kent McGaughy, Jr. 2018-12-12