Bartelle was born on January 2, 1950 in Farroupilha. He studied at Universidade de Caxias do Sul, graduating with a bachelor's degree in law.
In 1971, Alex Andre and Pedro co-founded Grendene. Their grandfather lent them capital to purchase plastic injection molding machines and hire five employees. By May 2016, he was worth US$1.86billion.
Bartelle currently lives in Porto Alegre and has seven children. In 2015, he donated funds for the construction of a veterinary hospital in Porto Alegre. He owns a Limited Editions 199 yacht and a Falcon 7X jet.