SAN FRANCISCO — Mark Frank, who runs a health technology start-up called SonderMind, had planned to wait until the end of 2020 to raise more money for his company.
But after Uber and Lyft stumbled when going public and WeWork ousted its chief executive and pulled its initial stock offering, Mr. Frank changed his mind. With so much disappointment clouding start-up land and an economic slowdown looming, he decided that having more cash on hand was the better course.
