Check out the companies making the biggest pre-market moves: Regeneron Pharmaceuticals — The drug company fell more than 11% after its skin cancer drug missed targets in late-stage trials. Macy’s — Shares of the department store soared nearly 4% in premarket after regulatory filings revealed that Berkshire Hathaway had entered into a small position in the company worth about $55 million at the end of the first quarter. The stake was so small for a conglomerate that there was speculation that the purchase was made by Ted Weschler, vice president of investments who controls 6% of the company’s stock portfolio. Dominion Energy — Shares soared more than 12% after NextEra Energy announced a deal to acquire the company in an all-stock deal. NextEra said the merger of the two companies will create the world’s largest regulated power utility. Bio Rad Laboratories — Shares rose 13% after the Wall Street Journal reported that activist Elliott Investment Management has a significant stake in the company. However, the report does not detail the exact size of the stake or Elliott’s vision for the company. Arm Holdings — Shares fell 1% following a Bloomberg report on Friday that the U.S. Federal Trade Commission is investigating whether the company illegally monopolizes parts of the chip market. Delta Air Lines — Shares rose more than 1% after regulatory filings revealed that Berkshire Hathaway acquired a substantial stake in Delta Air Lines totaling $2.6 billion. This comes six years after Warren Buffett moved his entire Berkshire stock portfolio away from airlines. UnitedHealth — The insurance company fell more than 3.5% after the same regulatory filing revealed that Berkshire Hathaway sold some shares in the first quarter. Salesforce — Shares fell 1% after Bank of America reinstated coverage on the struggling company. The bank wrote that it expects artificial intelligence to reset Salesforce’s structure, hurting the company’s growth. ServiceNow — The software company soared more than 4% after Bank of America reinstated a buy rating on the stock. ServiceNow is likely to benefit from AI, rather than be replaced by it, the bank wrote. Coinbase, Robinhood — After Bitcoin prices fell more than 5% over the weekend, the trading platform’s shares plunged, falling below 77,000 for the first time since early May. Coinbase fell more than 2.5% and Robinhood fell nearly 2%. Ford Motor — Shares rose more than 6.5% after Ford Energy and EDF Power Solutions North America announced a five-year agreement to produce up to 4 gigawatt hours of DC block battery energy storage systems per year. Ford Energy is a subsidiary of the company, and deliveries as part of the deal are expected to begin in 2028. —CNBC’s Yun Li contributed to this report
