https://techcrunch.com/2021/10/01/7-takeaways-from-rivians-ipo-filing/

Rivian, the electric automaker backed by Amazon, Ford and a cornucopia of heavy-hitting institutional investors like T. Rowe Price Associates and Coatue, finally made its once-confidential IPO filing public. 

The company, which started in 2009 as Mainstream Motors before adopting the Rivian name two years later, has exploded in terms of people, backers and partners in the past few years. Rivian operated in secret for years before it revealed prototypes of its all-electric R1T truck and R1S SUV at the LA Auto Show in late 2018. Since then, Rivian has raised about $11 billion ($10.5 billion of which was raised since 2019); expanded its Normal, Illinois, factory; hired thousands of employees; landed Amazon as a commercial customer; and, most recently, filed confidentially for an IPO.