The successful IPO of Caris Life Sciences makes its founder David Dean Halbert worth an estimated $3.3 billion.

David Dean Halbert acquired an early-stage life sciences company called Molecular Profiling Institute in 2008 to develop a blood-based platform for early disease detection. Today, that firm, greatly expanded and renamed Caris Life Sciences, went public on Nasdaq, raising about $494 million. At 3:45 pm ET, the…