1&1 Drillisch AGの内部者の所有権は75.25%です。
管理の所有権(Insider Ownership)は、発行済株式総数で除したインサイダー（5％超を所有する株主または取締役または役員) が所有する株式総数によって計算されます。
A high value of insider ownership means that those working for the company have a large stake in the success of the company. This is sometimes seen as a sign that those running the company will work hard to ensure its success or believe the company's stock price will rise.
A change in insider ownership may come from exercise of option, stock grant and buying or selling of company shares. A purchase of company share signifies a confidence in the company's future performance by people who know the company best. Therefore, Net Insider buying is also an important indicator for investors.
1&1 Drillisch AG, together with its subsidiaries, operates as a telecommunications provider in Germany. The company operates through Access, 5G, and Miscellaneous segments. It provides its customers with a portfolio of services and products from the fields of broadband and mobile internet. The company's wireless access and landline products include related applications, such as home networks, online storage, telephony, and video on demand or IPTV. It also offers custom software solutions, as well as maintenance and support services. In addition, the company provides wireless network services using the networks of Telefónica and Vodafone; and 5G wireless network services. It operates under the brand names of 1&1, yourfone, smartmobil.de, winSIM, PremiumSIM, simply, maxim, DeutschlandSIM, sim.de, eteleon, discoTEL, M2M-Mobil, handyvertrag.de, and Galaxy EXPERTE brands. The company serves approximately 9.9 million wireless and 4.3 million broadband customers. 1&1 Drillisch AG was founded in 1988 and is headquartered in Maintal, Germany.