Citigroup reported a quarterly revenue of $19.58 billion, exceeding analyst estimates, with a return on equity of 6.62% and a net margin of 7.43%. The company declared a quarterly dividend of $0.56, yielding 3.19%, and announced a $20 billion share repurchase program, indicating management's belief in the stock's undervaluation. Insider selling included significant transactions by CFO Mark Mason and insider Sara Wechter, with a total of 103,590 shares sold in the last 90 days.