Complex sentence: Gerber was born and raised in Los Angeles, California, by the age of 13 he was learning and following investments, and for his birthday he received 20 shares of Disney as a birthday present from his grandfather.
Split into simpler sentences: Gerber was born and raised in Los Angeles, California. By the age of 13 he was learning and following investments, and for his birthday he received 20 shares of Disney as a birthday present from his grandfather.