He previously played college basketball for the Seton Hall Pirates of the Big East Conference and the Harvard Crimson.

[2] He averaged 10.8 points per game as a senior and helped his team to a 64–18 record over three years, including a runner-up finish at the City of Palms Classic.

[3] On October 8, 2015, Aiken committed to play college basketball for Harvard over offers from Miami (Florida) and Seton Hall.

[6] Aiken suffered a left knee injury in loss to Columbia on February 2, 2018 that required offseason surgery.

On April 9, 2020, Aiken announced that he would transfer to Seton Hall for his senior season, choosing the Pirates over Maryland, Michigan and Iowa State.

[11] After an injury-plagued senior season, Aiken took advantage of the additional year of eligibility granted by the NCAA due to the COVID-19 pandemic.