- Moderna loses $140 billion in stock crash as insiders sell millions worth of shares Company stock fell as much as 13% Monday to a 10-month low over the past month. Financial experts have questioned whether vaccine sales are a sustainable revenue stream for years to come for those developing drugs. Regulatory filings released Friday showed four Moderna executives sold company stock at a combined value of $3.6 million. @intelops 14.2K viewsedited 11:04