 Insiders Bet Big: Who's Buying Stocks in May 2026 Analysis of fresh OpenInsider data from May 8 — which top executives are putting their money where their mouth is for their companies. - **51Talk (COE)** — CEO Huang Jack Jiajia bought $12.2 million worth of shares at $27.36. Chinese EdTech is once again attracting attention from top brass. A purchase of this size is not a bonus, but a signal. - **Upstart Holdings (UPST)** — Director Girouard Dave invested $5 million at $29.37. AI lending remains an insider bet even after the correction. - **Pampa Energy (PAM)** — VP Mariani Gustavo acquired $4 million at $81.21. Argentina's energy sector — an unexpected but bold move. - **Pool Corp (POOL)** — Three insiders bought: directors Perez, Stokely, and Hope. Total >$2.1 million. Pools and construction — a bet on the summer season. - **Sofi Technologies (SOFI)** — CEO Noto Anthony added $250k at $15.73. A small but regular pattern — the CEO is increasing his position monthly. - **Markel Group (MKL)** — Director Leopold Diane bought $268k at $1,791 per share. A mini Berkshire Hathaway — an insider signal with history. - **Inspiremd (NSPR)** — Two directors (Roubin +90k shares, Ward +89k) increased their stakes by 12% and 60%, respectively. Medical technology — an aggressive bet. My conclusion: The strongest signals are in COE and UPST. When a CEO invests $12 million of their own money, it's worth attention. POOL is interesting due to the volume of purchases (3 insiders). SOFI is slow but steady accumulation. Data: OpenInsider, 08.05.2026