A Joan Mitchell diptych and a rare stack by Donald Judd: our pick of the May auctions

The Art Newspaper highlights five major lots from New York's May 2025 auctions. Phillips offers Joan Mitchell's diptych 'Plain' (1989), estimated at $5-7 million, from the collection of late Miami art patron Tina Hills. Christie's presents Donald Judd's rare copper and red Plexiglas 'Untitled (Stack)' (1969), estimated at $10-15 million, from the Minimalist collection of the late Henry S. McNeil Jr. Sotheby's leads with Jean-Michel Basquiat's 'Museum Security (Broadway Meltdown)' (1983), estimated above $45 million, and Mark Rothko's 'Brown and Blacks in Reds' (1957), estimated at $70-100 million from the collection of late dealer Robert Mnuchin.

Sotheby’s $433 Million Contemporary Evening and Mnuchin Sales Kicked Off New York’s May Marquee Auctions

Sotheby's held two major evening sales in New York—the Mnuchin collection sale and The Now & Contemporary Evening Auction—generating a combined $433.1 million. The Mnuchin sale achieved a white-glove result of $166.3 million, led by Mark Rothko's *Brown and Blacks in Reds* (1957) which sold for $85.8 million, while the contemporary auction reached $266.8 million, with Jean-Michel Basquiat's *Museum Security (Broadway Meltdown)* as the top lot. The results fell within presale estimates but marked a 133% increase over last May's contemporary sales.

It is the great Mark Rothko leading Sotheby's first auctions in New York

È il grande Mark Rothko a guidare le prime aste di Sotheby’s a New York

Sotheby's kicked off New York's art and auction week with two major sales on May 14, 2026, led by the highly anticipated Robert Mnuchin: Collector at Heart Evening Auction. The top lot was Mark Rothko's "Brown and Blacks in Reds" (1957), which sold for $85.8 million, the second-highest price ever for the artist at auction. The Mnuchin auction achieved a "white glove" sale, selling all 11 lots for a total of $166.3 million, followed by The Now & Contemporary Evening Auction which brought in $266.8 million. Combined, Sotheby's generated $433.1 million, a 133% increase over its May 2025 session. The sales reflect a strong return of high-value trophy lots to the secondary market, driven by the dispersal of prominent collectors' estates.