Check out the companies making headlines in midday trading. CarMax – The used car seller fell 13% after reporting fourth-quarter earnings of 32 cents per share on revenue of $5.63 billion. According to LSEG, formerly known as Refinitiv, analysts were expecting earnings per share of 49 cents on revenue of $5.80 billion. Nike – The athletic apparel maker added 3.2% after Bank of America upgraded Nike to buy from neutral. The bank said investors should buy on dips as estimates and valuations look attractive. Paramount – Shares rose 2% after CNBC’s David Faber reported deal talks with Skydance Media have moved into the “fast lane,” with the parties now negotiating the exchange rate Paramount will pay for Buy Skydance. Faber added that David Ellison, who will lead the combined company as CEO, is also planning a “radical” restructuring and “huge” cost cuts. Fastenal — Shares fell 4% after the industrial company posted first-quarter earnings of 52 cents per share on revenue of $1.9 billion, slightly below analyst estimates of 53 cents per share in earnings and revenue of $1.91 billion, according to FactSet. It also reported operating income of $390 million, compared with expectations of $404 million. Alpine Immunosciences – Alpine Immunosciences jumped about 37% after Vertex Pharmaceuticals agreed to buy the biotech company for $4.9 billion in cash. The deal values Alpine’s shares at $65, about 67% above the closing price on Tuesday, a day before reports emerged that Alpine was reviewing its options. Vertex shares rose nearly 1%. Rocket Lab – Shares rose 3.3% after the aerospace company said it has been selected to sign a $32 million contract with the U.S. Space Force’s Space Systems Command to carry out performs the Victus Haze Tactical Response Space mission. Constellation Brands – The beer and spirits maker’s shares rose less than 1% after beating fourth-quarter sales expectations on strong beer sales. Constellation Brands posted revenue of $2.14 billion, compared with the $2.10 billion predicted by LSEG analysts. Atlassian – Shares rose 3.2% after Barclays upgraded the software maker to overweight from equal weight and raised its price target. The bank believes that increased customer cloud migration as well as higher software developer vacancies will support Atlassian’s long-term growth. – CNBC’s Lisa Kailai Han, Sarah Min, Yun Li, Samantha Subin, Michelle Fox and Alex Harring contributed reporting.