Matt told the magazine, "It was the happiest day of my life. Everything went perfectly. It was amazing to do this in front of our closest friends and family."
The actor wore a tailored charcoal suit by The Button Up, and Angela, a custom gown by Lazaro, accompanied by Badgley Mischka shoes and Neil Lane jewelry.
Lanter and Stacy have been dating since 2009, and were engaged last summer.
"90210" heartthrob Matt Lanter married his girlfriend of four years, Angela Stacy, Friday in Malibu, reports Life & Style.