Tex. Education Code § 51.951

(a) Information related to the location, purchase price, or sale price of real property purchased or sold by or for an institution of higher education, as defined by Section 61.003, is confidential and exempt from disclosure under Chapter 552, Government Code, until a deed for the property is executed. Information that is confidential and exempted from disclosure under this subsection includes an appraisal, completed report, evaluation, investigation conducted for the purpose of locating or determining the purchase or sale price of the property, or any report prepared in anticipation of purchasing or selling real property.

(b) Information that is confidential and excluded from disclosure under Subsection (a) is not subject to a subpoena directed to an institution of higher education, its governing board, or any officer, agent, or employee of an institution of higher education.