The chemical analysis device developer has added $20m to an initial public offering following $70m in funding from investors including Saudi Aramco and Schlumberger.

908 Devices, the US-based mass spectrometer provider backed by oil and gas supplier Saudi Aramco and oilfield services provider Schlumberger, has closed its initial public offering at approximately $150m.

The company issued 6.5 million shares priced at $20.00 each to raise an initial $130m earlier this month. Its shares opened at $45.51 on their first day of trading and opened at $72.00 this morning.

Lead book-running managers Cowen and SVB Leerink and book-running managers William Blair and Stifel subsequently…

Robert Lavine

Robert Lavine is special features editor for Global Venturing.