Not according to legal description of a cult

Before calling a church or religious group a "cult" or "sect" one should seriously examine and clarify what one means with those qualifications.

Are the Christadelphians a Cult?

Lots of times Christadelphians are called a cult group, but they are a religious group where no specific human being is venerated and no human beings worshipped like in other religious Christian groups which are not called cults, like the Catholic Church where people pray to 'saints' and worship in front of statues.