23andMe stock is down over 95% from its peak, cutting its value from $6 billion to $345 million. The genetic-testing company is facing financial and strategic challenges, and was hacked last year. The startup's backers, including Sequoia Capital, have taken big hits to their investments. NEW LOOK Sign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. Read preview Thanks for signing up! Access your favorite topics in a personalized feed while ...