VIENNA (Reuters) - Drugmaker Novartis
The world's biggest prescription drugmaker started building up the stake - worth 33 percent of Roche's voting shares - as a basis for a possible merger more than a decade ago, but the plan never materialised.
Novartis plans to sell the stake in a so-called order book process, having banks collect purchase offers within a predefined price range from selected investors, weekly Sonntagszeitung said, citing board and banking sources.
A Novartis spokesman declined to comment on the report.
($1 = 0.8909 euros)
($1 = 0.9781 Swiss francs)
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(Reporting by Kirsti Knolle; Editing by Alison Williams)