The filmmaker revealed to Mexican news magazine Reforma that he and Newton finalized their divorce last year after more than 31 years of marriage, but they decided to keep the news private.
"I separated in February [of 2017] and divorced in September,” del Toro told the publication on Wednesday. "But few people knew."
Speculation began to swirl about del Toro's marriage when he walked the Oscars red carpet arm in arm with screenwriter Kim Morgan, who penned the director's upcoming project, Nightmare Alley.
Many wondered why Newton, with whom del Toro shares daughters Marisa and Mariana, didn't accompany him to the star-studded event. However, he preemptively denied any potential rumors that Morgan played a role in his divorce.
"She is working with me, we have a nice friendship," he explained. "In case some news appears, let's clarify that I separated in February. I started working with her at the end of the summer."