Check out the companies making headlines before the bell:JetBlue Airways — JetBlue Airways declined 1.3% in premarket trading after the company said it would end its partnership in the northeastern U.S. with American Airlines and focus on Spirit Airlines . Meta Platforms — The social media giant added about 2% in premarket trading after the launch of Threads, a direct competitor to Twitter. Sweetgreen — Sweetgreen jumped more than 4% after Bank of America upgraded the stock to buy from neutral. Keurig Dr Pepper — Shares added nearly 2% after being upgraded by Morgan Stanley to overweight from equal weight. Shares rose nearly 0.9% in premarket trading.

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Persons: Mark Zuckerberg, — Sweetgreen, Dr Pepper —, Morgan Stanley, — CNBC's Brian Evans, Michelle Fox, Jesse Pound Organizations: JetBlue Airways — JetBlue Airways, American Airlines, Spirit Airlines, Twitter, Meta, Bank of America, Microsoft, Citi, Textron — Citi, Textron