About 20 bidders are readying offers for all or parts of Astra Tech, the dental and medical devices unit that AstraZeneca Plc (AZN.L) hopes could fetch $2 billion, people familiar with the matter said. Astra Tech, which had revenues last year of $535 million, is the world's third-biggest dental implant maker behind Switzerland's Straumann Holding (STMN.S) and Nobel Biocare Holding (NOBN.VX). It also sells medical devices, focusing chiefly on urology. Parent AstraZeneca, which first flagged the sale in November, has sent so-called "information memorandums" to a slew of medtech companies and private equity firms, the people said, and requested preliminary bids in March. An initial screening weeded out dozens of other potential bidders, they added.
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