Rivian's stock price fell more than 17% Monday, a drop prompted by a CNBC report that Ford was selling 8 million shares of the EV automaker.
Ford held a 12% stake, or about 102 million shares, of Rivian.
Over the weekend, David Faber of CNBC reported that Ford would sell 8 million of its Rivian shares through Goldman Sachs. Faber followed up on Monday, describing the sale as "done." The sell-off came as an insider lockup for the stock expired Sunday.
TechCrunch will update the article if Ford responds to a request for comment.
The news has further accelerated the decline of Rivian's share price since its IPO last year. Rivian debuted as a publicly traded company in November with an opening share price of $106.75, a price that made it one of the largest IPOs in U.S. history and put its market cap above GM as well as Ford. (At the time, GM’s market cap was $86.31 billion; Ford’s was $78.2 billion.)
Rivian's share price reached as high as $179.47 a week later, before coming back down to earth. Rivian shares have fallen more than 75% since its public market opener.
That freefall has also affected its largest shareholders, Ford and Amazon. Last month, Ford reported it lost $3.1 billion in GAAP terms in Q1, largely due to a write-off of the value of its stake in Rivian.
Amazon reported a $7.6 billion loss on its investment in Rivian.