Check out the companies making headlines in midday trading. Novo Nordisk — Shares rose 4.9% after the Food and Drug Administration said Friday that the U.S. shortage of Novo Nordisk’s weight loss injection Wegovy and diabetes treatment Ozempic is resolved after more than two years. Hims & Hers Health — The telehealth stock, which offers compounded Wegovy and Ozempic, plunged 22.9% after the FDA announced that the semaglutide shortage is now “resolved.” Hims & Hers sells a cheaper version of the GLP-1 drug by combining ingredients to customize treatments, but compounding pharmacies are only allowed to sell brand-name medication during a shortage. Under the FDA’s decision, Hims & Hers will be able to use its compounding facilities until May 22. Alibaba — Shares climbed 5.7%, reaching a fresh 52-week high, after GameStop CEO and billionaire investor Ryan Cohen increased his position in the Chinese e-commerce giant to a stake worth about $1 billion, The Wall Street Journal reported on Thursday. UnitedHealth — Shares tumbled 8.6% after The Wall Street Journal reported the insurer is under investigation by the Justice Department. The probe is evaluating UnitedHealth’s protocols for recording diagnoses that can lead to extra payments on Medicare Advantage plans, the report said. UnitedHealth said in a statement that any insinuations of its work being fraudulent are “outrageous and false.” The company’s stock price has lost more than 20% over the past three months as it navigates a tumultuous period . Booking Holdings — Shares climbed 2% after the online travel booking platform reported fourth-quarter adjusted earnings of $41.55 per share, topping the $36.03 expected from analysts polled by LSEG. Revenue also topped expectations, coming in at $5.47 billion, versus the $5.18 billion consensus estimate. Dropbox — Shares of the cloud software company lost about 13.8% on mixed quarterly results. Block reported a non-GAAP gross margin of 83.1% in the fourth quarter, which came out in line with analysts’ expectations, per StreetAccount. The company’s adjusted earnings and revenue in the period topped consensus forecasts, meanwhile. MercadoLibre — The Latin American e-commerce stock added 8.5% after strong fourth-quarter results. The company posted $12.61 in earnings per share on $6.06 billion of revenue. Analysts were expecting $7.93 per share on $5.88 billion of revenue, per LSEG. Akamai Technologies — Shares tumbled more than 18% after Akamai’s first-quarter guidance came out weaker than expected. The cloud computing company called for adjusted earnings between $1.54 and $1.59 per share, on revenue of $1 billion to $1.02 billion, for the current quarter. Insulet — Shares of Insulet, which manufactures insulin delivery systems, shed 2.8% after the company called for first-quarter revenue growth of 22% to 25%, with the lower end coming out slightly under the FactSet consensus of 23.1%, per FactSet. Insulet’s fourth-quarter results exceeded top and bottom line expectations, however. Block — Shares lost 17.2% after Block reported disappointing earnings and revenue for the fourth quarter. The fintech company posted adjusted earnings of 71 cents per share on $6.03 billion in revenue, while analysts polled by LSEG expected earnings of 87 cents per share on revenue of $6.29 billion. Rivian Automotive — Shares of the electric vehicle maker slid 5% after the company forecasted lower deliveries for 2025. In the period, the company anticipates deliveries of between 46,000 units and 51,000 units, less than the 51,579 vehicles delivered last year. Earnings for the fourth quarter topped Wall Street’s estimates, however, with Rivian seeing its first gross quarterly profit. — CNBC’s Alex Harring, Hakyung Kim, Sean Conlon, Lisa Han and Michelle Fox contributed reporting.