Trade magazine publishing group, Advanstar, is up for sale at the behest of its controlling shareholder, San Francisco investment firm Hellman & Friedman. The move follows the abandonment last year of plans for an initial public offering.

Boston-based Advantstar is one of the largest trade publishers in the US with a stable that includes such titles as Spectroscopy, Cosmetic Surgery Times and Video Store Magazine. Industry insiders speculate that the sale could realise over $1 billion.

Wall Street Journal