Electric-vehicle maker Rivian files to go public

Rivian Automotive, an electric-vehicle start-up backed by Amazon, announced Friday that it has filed a confidential draft registration form for an IPO.

The size and price range for the IPO has not been determined, the company said in a release. Rivian did not immediately respond to CNBC’s request for comment.

The news comes months after Bloomberg reported that the company had selected Goldman Sachs, JPMorgan and Morgan Stanley as underwriters for its IPO and could seek a $70 billion valuation.

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