1&1 AG (1U1.DE) stock: Winston Score, insiders and Congress trades

1&1 AG is a German telecommunications company that sells mobile phone plans and internet connections to everyday consumers and small businesses. It is one of Germany's largest internet service providers and operates under the 1&1 brand, offering products like SIM-only mobile plans, broadband home internet, and bundled phone services. The company is a subsidiary of United Internet AG, one of Germany's biggest digital services groups. 1&1 makes money by charging customers monthly subscription fees for mobile and internet services. It operates almost entirely in Germany, with roughly 15 million customer contracts across its mobile and broadband segments. The company is currently building its own 5G mobile network, which would reduce its dependence on renting network capacity from larger rivals like Telekom and Vodafone — but this buildout requires heavy capital spending, and delays or cost overruns in completing that network remain the central risk to the business in the years ahead.