Novo Nordisk — The stock jumped about 5%, rebounding from the nearly 18% losses seen in the previous session. Honda – U.S.-listed shares surged 15% after the company officially began merger talks with fellow Japanese automaker Nissan. Occidental Petroleum , Sirius XM , VeriSign — The stocks continued to rise in Monday's premarket after Warren Buffett disclosed last week that his Berkshire Hathaway conglomerate added to its stake in each name. Occidental and Sirius XM each climbed more than 2%, while VeriSign advanced 1.8%. Tesla slid 3.5% last week, which marked its worst weekly performance since before the U.S. presidential election.

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Persons: Warren Buffett, Tesla, Despegar.com, Prosus, tivoxavir marboxil, Immunocore, CNBC's Sean Conlon, Christina Cheddar Berk Organizations: Novo Nordisk, Honda, Nissan, Xerox, Occidental Petroleum, Sirius XM, Berkshire Hathaway, U.S, Traws Pharma Locations: Honda – U.S, Monday's premarket, Berkshire, Argentina