$Rivian Automotive (RIVN.US)$ priced 135 million shares at $...

$Rivian Automotive (RIVN.US)$ priced 135 million shares at $78 per share, the sources said, requesting anonymity as the talks are confidential. On Friday, Rivian had boosted its price range to $72 to $74 per share, up from an earlier range of $57 to $62 a share.

Rivian did not immediately respond to a request for comment.

The mammoth IPO follows a highly successful investor roadshow last week, with Wall Street's biggest institutional investors betting on Rivian to be the next big player in a sector dominated by $Tesla (TSLA.US)$ .