The underwriters have bought 5.5 million more shares, allowing the EMC spinoff to close its initial public offering.

Pivotal Software, the US-based software development services provider spun out of software producer EMC, closed its initial public offering at just over $638m yesterday, after the underwriters bought 5.5 million additional shares.

The IPO initially consisted of 33.1 million shares priced at $15 each last week, in addition to almost 3.9 million shares sold by industrial technology and appliance manufacturer General Electric (GE).

Spun out of EMC, which was renamed Dell EMC when acquired by computing technology producer Dell…