Check out the companies making headlines before the bell. Nvidia — Shares dipped 2%, adding to losses from Thursday when Nvidia closed down 3.5%. The decline comes after the AI chipmaker on Tuesday briefly topped Microsoft as the most valuable public company. Sarepta Therapeutics — The biopharma stock soared 37% after the U.S. Food and Drug Administration granted approval for Sarepta’s Elevidys gene therapy , which would treat patients with Duchenne muscular dystrophy. The therapy was traditionally approved for all patients 4 years or older who are able to walk, with accelerated approval given for those who cannot walk. Nike — The athletic clothing maker moved 1% higher following an upgrade at Oppenheimer to outperform from market perform. The firm also reinstated Nike as a top megacap pick, saying that the stock is poised to rebound gradually as the company refocuses on product innovation and brand-building. Asana — Shares popped more than 3% after the software firm announced a $150 million share buyback plan. The company expects its stock repurchase program to continue through June 30, 2025. Gilead Sciences — The pharmaceutical stock rose more than 2.6%, building on a rally of 8.5% from the previous session. On Thursday, Gilead announced that an HIV-prevention shot succeeded in a late-stage trial . LendingTree — Shares of the online lending marketplace were marginally lower after Bloomberg reported that hackers are now auctioning off stolen data from the site. LendingTree was the victim of a cyberattack against cloud computing firm Snowflake. Apple — Stock in the iPhone maker ticked up following a price increase from Bernstein. Analyst Toni Sacconaghi asserted that the more bullish outlook is tied to his view that Apple can emerge as a leader of the artificial intelligence boom, “not a laggard.” Delta Air Lines — The stock rose 0.7% following news Thursday that the airliner announced a quarterly dividend of 15 cents a share, a 50% increase from previous levels. — CNBC’s Brian Evans, Michelle Fox, Jesse Pound and Sarah Min contributed reporting.