Cityfile: New York's Most Notable and Influential

• Hedge funder John Griffin and his wife Amy, who paid $32.25 million for a full-floor apartment at 1030 Fifth Avenue last year, are selling their old apartment in the same building. Now that they've finished renovations on the new spread, the couple has quietly put their 8th-floor apartment on the market with Serena Boardman for $16.5 million. [NYT]
• The townhouse at 11 East 82nd Street that was purchased by Ron Perelman as a home for one of his executives back in 1996 and was later acquired by private investor Keith Gollust, has gone into contract after more than a year and a half on the market. The limestone mansion was most recently priced at $29.5 million. [Cityfile, Sotheby's]
• Tokyo-born filmmaker Keiko Ibi is switching things up at 15 CPW. Back in July, she put her one-bedroom condo on the market for $3.75 million. Now she's partnered with her 7th floor neighbors, Young-oh and Byungwha Yoon, and they've listed their two apartments together for a combined $10.285 million. Corcoran's Carrie Chiang has the listing. [Cityfile, Corcoran]More

• Investor Gerhard Andlinger has sold his penthouse at the Time Warner Center for $37.5 million, making it the biggest residential deal the city has seen in nearly a year. Not that this should necessarily be interpreted as a sign the real estate market is back. The 8,300-square-foot apartment, which was sold to an anonymous buyer, had been listed for $65 million when it first hit the market last year. [NYO]
• Keiko Ibi, the Tokyo-born filmmaker who won an Oscar her 1999 documentary The Personals, has put her condo at 15 Central Park West back on the market less than two years after purchasing it for $1.8 million. The one-bedroom is now listed for $3.75 million. [Cityfile, BHS]
• German-born billionaire Juergen Friedrich has taken $10.5 million off the price of his 18,000-square-foot Southampton manse. The Grosvenor Atterbury-designed home, which went on the market for $67 million last year, is now priced at $49.5 million. [Curbed Hamptons, Corcoran]More