Lucinda Shen / Axios: Meanwhile, a Sam Altman-backed bitcoin life insurance provider, raised $37.5M led by Bain Capital, sources say at a $350M valuation, up from $190M in April 2025  —  Meanwhile, a Sam Altman-backed company offering life insurance in bitcoin, raised $37.5 million in funding, CEO Zac Townsend tells Axios exclusively.