Complex sentence: Andrew Kortina is a New York City-based entrepreneur best known for co-founding Venmo with Iqram Magdon-Ismail, which was acquired by Braintree in 2012 and is now part of EBay's PayPal.
Split into simpler sentences: Andrew Kortina is a New York City-based entrepreneur best known for co-founding the company Venmo with Iqram Magdon-Ismail. Venmo was acquired by Braintree in 2012, and is now part of EBay's PayPal.