• Morgan Stanley CEO John Mack and his wife Christy appear to be the mystery buyers behind last month's purchase of the limestone carriage house at 165 East 70th Street. The 107-year-old home, which was sold to Mack in "distressed condition" for $13.5 million—and which comes with a 12-car garage, believe it or not—was purchased from Bunny Mellon, the 99-year-old widow of philanthropist Paul Mellon. [NYO]
• Sandy Gallin, the Hollywood talent manager-turned-serial house flipper, is at it again. The onetime manager of stars like Michael Jackson and Barbra Streisand, Gallin has placed his 14-acre estate in Bridgehampton on the market for $32 million. [WSJ, Saunders]
• Steve Black, co-CEO of JP Morgan's investment banking division, has sold his estate in Greenwich for $18.9 million. The English-style mansion, which Black bought for $13.75 million in 2001, had been "quietly" on the market for $21 million. The buyer is believed to be to be investor Gerhard Andlinger. [WSJ]

• Lorraine Bracco has gone into contract to sell the riverfront cottage in Snedens Landing that she bought with ex-husband Harvey Keitel in 1989 and which has been on the market for a few years now. The buyer? Phish frontman Trey Anastasio, who is reportedly paying around $2 million for the 1,800-square-foot house. [NYP]
• Gerhard Andlinger, the investor who sold his penthouse at the Time Warner Center for $37.5 million earlier this month, is picking up another pricey home. Andlinger is in contract to buy the 20,000-square-foot manse in Greenwich that belongs to Steve Black, the co-CEO of JPMorgan's investment banking division, which had been "quietly" on the market for $19.5 million. [NYP]

• The buyer who paid $37 million for Gerhard Andlinger's penthouse at the Time Warner Center—setting the record as the biggest real estate deal in 2009 thus far—has been revealed. It's Andrei Vavilov, the Russian financier who agreed to buy two penthouses at the Plaza last year for $53.5 million, but ended up suing the developer after his wife wasn't pleased with the "attic-like" ceilings. (As part of a settlement, Valvilov agreed to purchase just one of the two apartments, and he's since gone into contract to sell it.) Hopefully, Vavilov's wife is happier with her husband's latest acquisition. The full-floor, five-bedroom penthouse on the 78th floor encompasses 8,300 square feet and comes with 14-foot ceilings. [NYT]

• 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]

• Christiane Celle, the founder of the Calypso boutiques scattered across Soho/Nolita, and her husband, fashion photographer Antoine Verglas, have lowered the price of their duplex penthouse at 129 Lafayette Street. The four-bedroom loft (left), which went on the market for $13.995 million in January, is now priced at $11.999 million. [Cityfile, CBHK]
• Disgraced investor Gerhard Andlinger was hoping to set a new record a few months ago when he put his 8,300-square-foot condo at the Time Warner Center on the market for $65 million. Now he just wants to get a deal done. Andlinger is now looking to unload it for $49 million. [NYO, BHS]
• Visa senior vice president Darren Parslow and art director Justin Durongsaeng have paid $1.9 million for an eighth-floor condo at 133 West 22nd Street. [Cityfile]