BioNTech's (BNTX) co-founders plan to leave the German drugmaker to establish a new independent company focused on messenger ribonucleic acid technologies, while the firm provided a full-year revenue outlook below market expectations.

Shares slumped 19% as intraday trading volume jumped to over 9.73 million from a daily average of about 940,000.

Freightcar America (RAIL) overnight reported a decline in Q4 adjusted earnings and revenue from a year ago.

Shares sank 21% as intraday trading volume jumped to over 759,000 from a daily average of about 165,000.

Paramount Skydance's (PSKY) acquisition of Warner Bros. Discovery (WBD) would significantly expand the company's scale across studios, streaming, and linear television, while integration could create near-term uncertainty, BofA Securities said.

BofA cut its price target for Paramount Skydance to $11 from $13 while maintaining its underperform rating.

Shares of Paramount Skydance dropped 8% as intraday trading volume surged to more than 13.5 million from a daily average of about 10.6 million.

Price: 82.84, Change: -19.33, Percent Change: -18.92