E156: Monzo valued at $5.9B following tender offer; OpenAI partners with Hearst; Maven Clinic raises $125M, valued at $1.7B; ByteDance launches AI earbuds, valued at $295B; Cerebras faces IPO delay amid US national security review; Sierra in talks for $4B

This Week in Pre-IPO Stocks - E156: Monzo valued at $5.9B following tender offer; OpenAI partners with Hearst; Maven Clinic raises $125M, valued at $1.7B; ByteDance launches AI earbuds, valued at $295B; Cerebras faces IPO delay amid US national security review; Sierra in talks for $4B