Mark Zuckerberg has three siblings. Here's everything to know about Mark Zuckberg's sisters: Randi, Donna and Arielle.

Edward Zuckerberg and Karen Kempner-Zuckerberg ... They have four adult children: Randi, Mark, Donna and Arielle. Mark often expresses his feelings about his family on his social media platforms ...

Randi Zuckerberg, founder of Zuckerberg Media and ... "I'm a working mom with two young children, so I feel like technology is my lifesaver and the whole reason that I can be doing what I'm ...

It was a misunderstanding straight from the “Three’s Company” playbook. Randi Zuckerberg, sister of Facebook co-founder Mark Zuckerberg, became upset when a photo from her personal Facebook ...

Mark is one of four children born to Edward Zuckerberg and Karen Kempner-Zuckerberg. The couple welcomed their first child, daughter Randi, in 1982, followed by Mark in 1984, Donna in 1985 and Arielle ...

Mark Zuckerberg with his sisters Randi, Arielle and Donna.