At 82, Larry Ellison — founder and dominant shareholder of Oracle — quietly abandoned a plan to sell up to $7.5 billion of his own company's stock, just one day after regulators made the arrangement public. No shares had changed hands before the cancellation, and Oracle confirmed he holds no further intention to sell. The reversal arrives at a delicate moment: Oracle's stock has fallen 23 percent this year even as the company bets heavily on artificial intelligence infrastructure, and the act of not selling may carry as much meaning as any transaction could.