• Hedge funder Scott Bommer and his wife Donya have lowered the price of their 29th-floor apartment at the Ritz-Carlton, which they purchased for $28.5 million last July and put on the market for $35 million in November. It's now listed at $29.75 mil. [Cityfile, Corcoran]
• Jeff Koons has closed on the purchase of a six-story townhouse at 11 East 67th Street for $12 million, two years after he first went into contract. [NYP]
• Loews heiress Laurie Tisch—daughter Bob and Joan, sister of Jonathan and Steve—paid $29 million for a 13th-floor apartment at 834 Fifth Avenue. Her new upstairs neighbor? Rupert Murdoch. [NYO, previously]
• Former Lehman exec Jack Rivkin has put his 7,000-square-foot home off Further Lane in Amagansett on the market for $31 million. [Newsday, Sotheby's]

Karole Armitage's Armitage Gone! dance company held its annual benefit last night at Capitale. The honorees at the Think Punk! event, Jeff Koons and Earle Mack, celebrated with their wives, Justine and Carole, as well as with attendees like Rufus Wainwright (left), Andre Balazs, Calvin Klein, Fabiola Beracasa, Lou Reed and Laurie Anderson, Nicole Miller, Lauren duPont, Allison Sarofim, Peter Marino, Mary Boone, David Salle, Michael Musto, Dominique Levy, Sandy Brant, Tom Sachs, Todd Eberle, Francesco Clemente, Michele Zalopany, and Jamie Niven. [PMc, VF, WWD]

♦ Julian Schnabel has slashed the price of the triplex penthouse atop the Palazzo Chupi (left) in the West Village. The apartment is now $24 million instead of $29.5 million. [NYP, Corcoran]
♦ Art dealer Dominique Lévy and her partner, producer Dorothy Berwin, paid $12 million for a six-bedroom duplex at 170 East End Ave. Their new neighbors will include Mets pitcher Johan Santana and Vornado president Michael Fascitelli. [Real Deal]
♦ The former head of Lehman's mortgage banking group, Kurt Locher, paid $5.25 million for a five-bedroom apartment at 500 West End Avenue. Meanwhile, his former apartment at 1165 Park is still on the market for $2.495 million. [NYO]

Lévy is co-director of the Upper East Side contemporary art gallery L&M Arts, where she advises rich folks on expensive things to buy. Her partner in the venture is Bob Mnuchin.