Aon plc (NYSE:AON) reported worse-than-expected first-quarter financial results on Friday. Aon posted adjusted earnings of $5.66 per share, missing market estimates of $5.91 per share. The company’s sales came in at $4.070 billion versus expectations of $4.126 billion, according to data from Benzinga Pro. Its operating margin fell 210 basis points to 36.0%, while operating margin, adjusted for certain items, rose 100 basis points to 39.7% during the quarter. “Our global team delivered strong operating results in the first quarter, including 5% ...