{"slug":"william-j-o-brien","artist_id":"8e7355b1-200a-4e44-8243-05537897510a","canonical_slug":"william-j-o-brien","name":"William J. 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O'Brien at 7 houses since 2018. Over the last 24 months the median price was $1,270 including buyer’s premium (middle half $408–$3,328, n=17). The auction record is $16,640 for Untitled (glazed ceramic) (2026, Sotheby's). Source: OpeningBid, an independent auction-results database.","title":"William J. O'Brien value: auction records & prices (updated Nov 2026)"}}