Sphere Entertainment (NYSE:SPHR) stock investors are excited on Wednesday after billionaire Steve Cohen took a large stake in the live entertainment event company’s shares.Steve Cohen’s Point72 Asset Management, L.P. has acquired a 5.5% stake in SPHR stock. This comes from 1,560,170 shares that are held by the firm. That includes 582,400 shares that are issuable upon the exercise of warrants.Sphere Entertainment is best known for The Sphere. This is the large dome in Los Angeles that houses an 18,600-seat a ...