The Wall Street bull has been one lonely bovine since the end of summer.

The sculpture was corralled behind barricades when the Occupy Wall Street protest began Sept. 17, as police feared vandals might try to damage the stock market mascot.

After three-plus months of isolation, the iconic animal is going to be freed from its caging at noon Monday, said Arthur Piccolo, bull advocate and chairman of the Bowling Green Association.

Piccolo is organizing a belated birthday party for the statue, which has stood ready to roar up Broadway since Dec. 20, 1989.

There will be a ceremony honoring the sculpture and artist Arturo DiModica, who created the proud bronze beast as a Christmas gift to the Big Apple and a tribute to America’s economic rebound in the wake of the 1987 stock market crash.