A weekly recap of some of the most interesting venture capital deals, funds and start-ups. : Alphabet invested $375 million in Oscar Health, a six-year-old health insurance start-up co-founded by Joshua Kushner. The investment comes just a few months after two other subsidiaries of Alphabet — another investment arm, Capital G, and life sciences division Verily — participated in a $165 million round that sources said valued Oscar at $3.2 billion. Alphabet now reportedly owns roughly 10 percent of the start-up, which has created a technology platform to better process insurance claims.