The 64-year-old Shribman has led the Post-Gazette’s news operation since 2003.
He will become a scholar-in-residence at Carnegie Mellon University next month, and in August will begin an appointment at McGill University in Montreal.
A successor has not been named.
Following the killings, he crafted a front-page headline in Hebrew that quoted the first words of the Jewish mourner’s prayer. It received worldwide recognition.
His long career in journalism included winning a Pulitizer Prize for political coverage at the Boston Globe.