[7] In 1946, at the behest of Ned Irish, the Madison Square Garden Corporation became a charter member of the National Basketball Association with the New York Knicks.

Ryan ordered the two men to divest their stock in the Madison Square Garden Corporation within five years and resign as officers and directors of the company.

[10][11] On January 30, 1959, Norris and Wirtz accordingly sold their controlling interest in the Madison Square Garden Corporation, accounting for 40% of the stock, to automaker-turned-investment firm Graham-Paige for $4 million.

At the time of Gulf and Western's acquisition, the Madison Square Garden Corporation owned the arena, Knicks, Rangers, three horse tracks (Roosevelt Raceway, Arlington Park, and Washington Park Race Track), Holiday on Ice, and real estate holdings in Long Island, Manhattan, and Chicago.

[17] In 1994, Viacom purchased majority ownership of Paramount Communications, but quickly sold MSG to Cablevision and ITT Corporation.

[19] In February 2010, Cablevision spun off the MSG properties, including the sports franchises, into the Madison Square Garden Company.

[20] On September 30, 2015, MSG spun off its regional sports networks;[21][22] the split was structured so that the original Madison Square Garden Company was renamed to MSG Networks, Inc., and spun off its sports and entertainment properties as a new Madison Square Garden Company.

[27] In November 2019, MSG announced its intent to perform a tax-free spin off its non-sports assets as a new publicly traded company.

[36] In 2018, the Madison Square Garden Company was behind a lawsuit against the city of Inglewood in an attempt to stop the construction of a new basketball arena for the Los Angeles Clippers.

[39] In December 2018, the Los Angeles Clippers countersued the Madison Square Garden Company alleging that they are trying to prevent competition from a new arena by trying to stop its construction.

[40] In March 2019, leaked emails revealed that Irving Azoff attempted to lure the Los Angeles Lakers back to The Forum after their lease at the Staples Center was up.

[41] In the summer of 2019 it was reported that the company had spent large amounts of money trying to influence Inglewood's mayoral election in the hopes of preventing the construction of the competing arena.