Several major corporations encountered regulatory challenges and reported financial results in a day marked by diverse corporate developments across multiple industries.

ImmunityBio shares declined following an FDA warning letter regarding claims made about the company's cancer therapy in advertising materials. The biotechnology company faced regulatory scrutiny over marketing statements related to its treatment offerings.

GameStop reported declining sales amid continued challenges in the retail sector, with the videogame retailer noting decreases in hardware, accessories and software sales. However, the company did see growth in its collectibles revenue segment, providing some offset to overall declining performance.

In the semiconductor sector, Micron Technology's stock continued its decline for a fourth consecutive day despite what analysts characterized as strong earnings results. The memory chip manufacturer's share price movement contrasted with its financial performance metrics.

Energy markets saw significant developments as Russia reported oil revenues reaching a four-year high due to surging prices. Meanwhile, TotalEnergies' CEO described current refining margins as unprecedented, telling CNBC that the world has "never experienced" such elevated levels.

Other notable corporate activities included Rio Tinto securing an agreement to maintain operations at Australia's second-largest aluminum smelter, while several companies announced financing activities including private placements and potential public offerings. The European Central Bank also announced plans to conduct fresh assessments of banks' exposures to private credit markets.