Not sure what you mean but IIRC, he dropped out to start Facebook.

kagis

Yup.

https://en.wikipedia.org/wiki/Mark_Zuckerberg

Harvard University (dropped out)

Incidentally, some other prominent tech founders did the same. Off the top of my head:

Bill Gates (founder, Microsoft):

https://en.wikipedia.org/wiki/Bill_Gates

Harvard University (dropped out)

Michael Dell (founder, Dell Technologies):

https://en.wikipedia.org/wiki/Michael_Dell

University of Texas at Austin (dropped out)

Steve Wozniak (founder, Apple):

https://en.wikipedia.org/wiki/Steve_Wozniak

University of Colorado Boulder (expelled)

He started Apple later, didn't directly do it from college.

He did go back to university, years later, after he'd retired from Apple, and got his bachelor's degree.