The Colegio de San Juan de Letran-Calamba community marked a historic moment on Monday, June 23, 2025, with the solemn investiture of Br. Roman L. Santos, O.P., RPh, MBA, as the institution's ninth Rector and President. This ceremony heralded the beginning of a new era for the esteemed institution. The event, deeply rooted in faith, began with a Holy Eucharist celebration that unites the community in prayer for divine guidance and blessing on this new journey. The investitur