605 Third Ave./photo by William Taufic 605 Third Ave./ Photo by William Taufic

NEW YORK CITY— Wellspring Capital Management has signed a new 15-year, 14,698-square-foot lease for the entire penthouse floor at Fisher Brothers' recently renovated office skyscraper at 605 Third Ave. A source with knowledge of the deal tells GlobeSt.com that the asking rent was in the mid-80s.

The private equity firm will move from 390 Park Ave. between E. 53rd and E. 54th streets to the top floor of the 44-story tower later this year.

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Betsy Kim

Betsy Kim was the bureau chief, East Coast, and New York City reporter for Real Estate Forum and GlobeSt.com. As a lawyer and journalist, Betsy has worked as the director of editorial and content for LexisNexis Lawyers.com, a TV/multi-media journalist for NBC and CBS affiliated TV stations in the Midwest, and an associate producer at Court TV.