Shares of Shift4 Payments ($FOUR) rose following a substantial insider purchase by CEO Jared Isaacman, who acquired more than 195,000 shares worth approximately $16.3 million on August 8, 2025. This purchase came after a 20% drop in the stock price and has been noted as a vote of confidence from the CEO. Meanwhile, UnitedHealth Group ($UNH) has experienced a recent reversal and upward momentum after hitting a support level around $240. The company’s board approved a quarterly dividend of $2.10 per share, yielding 3.21%, which is above the sector average. UnitedHealth’s stock has been described as a textbook dividend growth stock, with dividend growth at an 18% CAGR since 2015. The stock has attracted retail investors buying the dip, contributing to a 3.1% rise and helping the Dow Jones Industrial Average. The 2x leveraged ETF on UnitedHealth ($UNHG) has surged 21% over the past five days. Despite some caution about a potential further decline, market sentiment remains positive with targets around $282 to $300. Additionally, Eli Lilly ($LLY) has seen increased insider buying activity, including a $1 million purchase by the CEO amid a selloff, contributing to a premarket gain of 1.3% to $647. Insider buying at Eli Lilly has been noted as rising in recent days.