Robbins Arroyo LLP: Cemex, S.A.B. de C.V. Misled Shareholders According to a Recently Filed Class Action Robbins Arroyo LLP: Cemex, S.A.B. de C.V. Misled Shareholders According to a Recently Filed Class Action Shareholder rights law firm Robbins Arroyo LLP announces that purchasers of Cemex, S.A.B. de C.V. have filed a class action complaint against the company's officers and directors for alleged violations of the Securities Exchange Act of 1934 between August 14, 2014 and March 13, 2018. Cemex, together with its subsidiaries, produces, markets, distributes, and sells cement, ready-mix concrete, and other construction materials.