Lachlan Murdoch, the eldest son of media mogul Rupert Murdoch, is leading a bid for the US trade magazine publisher of Billboard and The Hollywood Reporter.
Through his investment company Illyria, Murdoch is in a bidding war with Pluribus Capital Management, which is also looking to take control of the bulk of Nielsen Business Media, the FT reported.
The move is one of the more prominent made in the US by Murdoch since he stepped down from executive duties at News Corporation in 2005.
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