• G. Kelly Martin, CEO of the drugmaker Elan and the former president of Merrill Lynch's International Private Client Group, has lowered the price of his duplex at 1040 Fifth Avenue. The 10-room spread, which Martin and wife Elizabeth Ann paid "between $2 million and $2.5 million" to acquire back in 1994, originally went on the market for $12.9 million in February. It's now listed at $10.2 million. [Cityfile, Real Deal, Corcoran]
• Calypso founder Christiane Celle and her husband, photographer Antoine Verglas, have cut the price of their penthouse at 129 Lafayette Street for the third time in three months. The four-bedroom apartment, which went on the market for $13.99 million in January, was cut to $11.99 million in March and then reduced to $10.65 million in May. It's now priced at $9.65 million. [Cityfile, Corcoran]
• Renée Zellweger has reportedly moved out of 240 Central Park South and is now planning to move to a brownstone on the Upper East Side. [P6]
• Rumor has it Billy Joel may be buying two of the three townhouses currently under construction at 26 Downing Street. [Curbed]

• Joan Rivers has put her duplex penthouse at 1 East 62nd Street up for sale. The 5,190-square-foot aerie, which comes with "original architectural detail painstakingly restored by museum-trained artisans" and an outdoor garden, is on the market for $25 million. [NYT, Sotheby's]
• Calypso founder Christiane Celle and her husband, Antoine Verglas, have lowered the price of their Lafayette Street penthouse. The apartment, which went on the market for $13.99 million in January and was reduced to $11.99 million in March, is now listed for $10.65 million. [Cityfile, CBHK]
• Chrysler president James Press has put his East 64th Street townhouse up for sale. Press bought the home last year for $13.5 million. He's now looking to sell it for $15.7 million, or rent it for $35,000 per month. [NYO, Halstead]

• 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]

These are difficult times for hedge fund king Paul Tudor Jones but he was all smiles as the guest of honor at last night's 11th annual NYU Child Study Center Gala at Cipriani 42nd Street. Joining Jones and his wife Sonia (left) was the center's director, Harold Koplewicz, co-chairs (and fellow finance big wigs) Gary Cohn and Lisa Pevaroff, David and Danielle Ganek, and Michael Novogratz and wife Sukey, and a crowd of nearly 600, including Vera Wang and Arthur Becker, Jon Corzine, Elie Wiesel, Jane and Jimmy Buffett, Ellen Barkin, Erica Jong, Jane Rosenthal, Christiane Celle, Faith Popcorn, Al D'Amato, Larry Silverstein and wife Klara, Neal Shapiro and Juju Chang, Julie and Ed Minskoff, Elaine and Ken Langone, Susan and Martin Lipton, Claude Wasserstein, Linda and Arthur Carter, Alice and Tom Tisch, Vicki and Stuart Match Suna, and Brooke and Dan Neidich. [PMc, NYSD]