21Vianet plans to issue 11.5 million American depositary shares (ADSs), each representing six class A ordinary shares, according to its regulatory filing.

21Vianet Group, a China-based internet data centre provider part-owned by equipment company Cisco, plans to raise $158.7m in its Nasdaq stock exchange flotation.

21Vianet plans to issue 11.5 million American depositary shares (ADSs), each representing six class A ordinary shares, according to its regulatory filing.

Investment banks Morgan Stanley, Barclays Capital and JP Morgan are underwriting the initial public offering (IPO) and can sell a further 1.725 million ADSs if demand is strong enough.

Cisco owns 5.3 millions…