Astera Labs Chairman Manuel Alba Sells 183,000 Shares for $51.3 Million. How Big of a Red Flag Is This?

Key Points Director Manuel Alba executed a sale of ~183,000 shares at a weighted average price of $280.13, totaling ~$51.3 million. The transaction size represents 12% of the total equity stake held before the filing, leaving the insider with a remaining position of ~1.4 million shares. The disposal was conducted through indirect holdings, specifically the Alba 2003 Living Trust and Casa Alameda 2007, LLC, while Alba retains 2,351 shares directly. The trade was executed under a Rule 10b5-1 trading plan adopted on May 22, 2026, indicating the sale was pre-arranged for liquidity or portfolio management. 10 stocks we like better than Astera Labs › Manuel Alba, the Chairman of Astera Labs, Inc.