David Einhorn, the hedge fund manager who has agreed to buy a minority stake in the New York Mets, joins a relatively small club: big-time financial moguls who own a piece of a prominent sports team.

Here’s a rundown of other members of that circle:

• John W. Henry:  the fund manager and serial baseball team acquirer who owns the Boston Red Sox as part of a member of Fenway Sports Group. (The New York Times Company also belongs to the consortium.) Fenway Sports also purchased the Liverpool Football Club last October from Thomas O. Hicks.
• Stephen G. Pagliuca, Wycliffe Grousbeck, Glenn Hutchins, David Bonderman, James Pallotta: the all-star list of financiers are on the board of the Boston Celtics‘ owner, Boston Basketball Partners. Mr. Pagliuca is a managing partner at Bain Capital, Mr. Grousbeck was previously an executive at Highland Capital Partners, Mr. Hutchins is a cofounder of Silver Lake, Mr. Bonderman is a co-founder of TPG Capital and Mr. Palotta is the chief of Raptor Capital Management.