[2] Born in the village of Marne, frazione of Filago in 1953, Malvestiti was baptized in the saint Bartholmew parish church.

He continued his theological studies in Rome and also perfected his knowledge of French and English.

On 19 June 2009 he became the under-secretary of the congregation,[3] becoming the private secretary of the three prefects, cardinals Achille Silvestrini, Ignace Moussa I Daoud and Leonardo Sandri.

On 26 August 2014 Pope Francis appointed him as the new Bishop of Lodi;[4][5] He was consecrated on 11 October 2014 by Cardinal Leonardo Sandri in St. Peter's Basilica and installed in Lodi on October 26 following, welcome and proclaimed bishop from cardinal Angelo Scola.

The solemn liturgy is celebrated by quite all the priests of the diocese, the cathedral chapter, by cardinal Leonardo Sandri, and several bishops, including Giacomo Capuzzi, Nino Staffieri, Diego Coletti and Claudio Baggini.