 Top Insider Purchases on May 11: Who Invested $13 Million in Their Business? Monday was eventful—insiders were actively buying. Here are the key signals to watch: The largest deal of the day—Robert Duggan (Director of Pulse Biosciences) bought 660,000 shares for $13 million. Average price $19.69. Duggan is a serial entrepreneur in biotech; his entry of this magnitude is a serious signal. Oil and gas sector: Bob Simpson (TXO Partners)—$9.46 million into the asset. 750,000 shares at $12.61. Energy is attracting major players at current levels. AI-SPAC: Jkapital Ltd. increased its position in Starlink AI Acquisition Corp (OTAI) by $2.2 million. Purchase at $10.00—pure nominal SPAC price. Technology: CEO of Universal Display (OLED) bought $1 million worth, CEO of SoFi (SOFI)—$248k. Top executives are voting with their money for their companies. Medical technology: Atara Biotherapeutics (+$4.7 million from a fund), Hemab Therapeutics (+$1.27 million from Ra Capital). What I see: Biotech and energy are two sectors where insiders are concentrating capital. These are not speculative entries but positions from people who understand their industries. Data: OpenInsider, May 11, 2026