A media report stated that the company is determined to grow with a major merger deal. Cigna Group (CI -4.69%) stock reacted to news that the large health insurer is reigniting its pursuit of a rival. Unfortunately for the company's shareholders, that reaction was largely negative, and the shares closed the trading day nearly 5% lower in price. That fall was far steeper than the 0.2% slide of the bellwether S&P 500 index. Back to the altar? In an article published after market close last Friday, Bloomberg w ...