Arctos was co-founded by private equity veteran Ian Charles and former MSG CEO David “Doc” O’Connor. The firm had about $2.9 billion in assets under management as of October, and has already made more than a dozen investments. They include about 17% of the NBA’s Sacramento Kings, and in Fenway Sports Group, the parent of the Boston Red Sox, Liverpool FC and the Pittsburgh Penguins. The group is also nearing agreements to invest in the NHL’s Minnesota Wild and Tampa Bay Lightning.