The  penthouse apartment that belonged to late investor Martin Zweig could soon hit  the market for between $100 million and $120 million

The penthouse, inside The Pierre on Fifth Avenue and Central Park, is a  12,000-square-foot triplex with a ballroom, four terraces, and views of Central  Park. Zweig, a stock investor, investment  advisor, and financial analyst, died in February.

He paid $21.5 million for the penthouse back in 1999, setting a real estate  record at the time. He tried — but  failed — to sell it for $70 million several years  ago, according to Curbed.The apartment has not yet been officially listed. But if it is listed for  more than $100 million, it will become the most expensive apartment for sale in  New York City.

Ex-Citigroup CEO penthouse at 15 Central Park West sold  last year for a record $88 million.