07:52 AM EDT, 04/24/2024 (MT Newswires) -- Amesite ( AMST ) shares surged 47% Wednesday premarket after the company launched a beta release of its artificial intelligence-powered app, NurseMagic, for nurses.

B. Riley Financial ( RILY ) shares rallied 34% after the company reported improved annual results for 2023.

Zapata Computing ( ZPTA ) shares rose 18% after Tuesday's 9.8% slide.

Vertiv Holdings ( VRT ) shares increased 16% after posting higher Q1 adjusted profit and sales.

Price: 3.0600, Change: +1.07, Percent Change: +53.77