( CNN ) -- A day after his social media company went public , Facebook co-founder and chief executive Mark Zuckerberg married his longtime girlfriend Priscilla Chan on Saturday . The news was announced where else but on Facebook . `` Mark added a life event to May 19 , 2012 on his timeline : Married Priscilla Chan , '' the page 's activity feed said . Zuckerberg , 28 , posted a simple wedding photograph , showing the couple against a backdrop of plants and small lights on a string . Who is Priscilla Chan ? Both he and Chan also updated their relationship status to `` married . '' What Facebook says about America . Zuckerberg ditched his trademark hoodie , appearing in a dark suit and tie , while Chan wore a sleeveless white wedding dress with lace . The pair met during Zuckerberg 's sophomore year at Harvard University , where he first nursed Facebook as a dorm-room project . Chan graduated this year from medical school at the University of California , San Francisco , according to her Facebook page . The marriage comes just one day after the company , based in California , made its market debut . CNNMoney 's journey buying Facebook 's IPO . Its initial public offering was the biggest opening ever for a tech company and the third-largest IPO in U.S. history , behind only Visa and General Motors .
The couple pose for a simple wedding photograph . The union come on the heels of Facebook 's historic IPO .