Edward V's name in a genealogical context?

Why is his name only written as Edward V of England here on Geni? He lived for 13 years, and he was only Edward V of England for 2 1/2 months of those 13 years. What is his full name at birth/baptizm? What was he named/called between his birth/baptizm and his kingship at age of 13. What name should be his main name (his father was neither King of England nor Duke of York at Edwards birth)?

Genealogists prefer names at Birth as a persons main name. What should Edwards main name be?