CORAL GABLES, Fla.–(BUSINESS WIRE)–MasTec, Inc. (NYSE: MTZ) today announced the appointment of Ati Modak as Vice President of Investor Relations, effective September 2026. Mr. Modak joins MasTec from Goldman Sachs, where he served as Vice President, Equity Research, Energy Services, covering companies across the traditional and new energy sectors. Prior to joining Goldman Sachs in 2019, he worked at Citi. Mr. Modak received his Bachelor of Engineering degree from PDEU in India and his M.B.A.