Spirit Airlines Incorporated (NASDAQ:SAVE) saw unusually-strong trading volume on Wednesday following insider buying activity, Market Beat reports. Approximately 2,252,007 shares changed hands during trading, an increase of 17% from the previous session’s volume of 1,931,726 shares.The stock last traded at $40.56 and had previously closed at $38.40. Specifically, SVP Thomas C. Canfield acquired 1,500 shares […]