In a filing, Twitter says Elon Musk's bid could make it difficult to attract and retain key employees, decrease productivity, and halt changes to its business (Sarah Frier/Bloomberg)

Sarah Frier / Bloomberg:
In a filing, Twitter says Elon Musk's bid could make it difficult to attract and retain key employees, decrease productivity, and halt changes to its business  —  Twitter Inc.'s $44 billion deal to be acquired by Elon Musk means it risks losing advertisers and employees, who may be concerned about the company's uncertain future.