Ad-Hoc Disclosure acc. to Art. 17 MAR: United Internet AG participates in capital increase against contributions in kind at 1&1 AG

Montabaur, October 5, 2026. The Management Board of 1&1 AG today resolved, with the approval of the Supervisory Board, to increase the company’s share capital against contributions in kind using authorized capital. The share capital of 1&1 AG will be increased by 20%, excluding shareholders’ subscription rights. The Management Board and Supervisory Board of United Internet AG have resolved to participate in this capital increase and to make the intended contribution in kind.

United Internet AG will contribute a loan receivable of EUR 850,237,942.45 from 1&1 Versatel GmbH, an indirect wholly-owned subsidiary of 1&1 AG, as a contribution in kind. In return, United Internet AG will receive 35,352,929 new 1&1 shares at a calculated issue price of EUR 24.05 per share.

On completion of the capital increase, United Internet AG’s shareholding in 1&1 AG will increase to approx. 89.32%. This quota already includes 1,290,247 1&1 shares acquired under the discretionary order placed on August 17, 2026. This order to purchase up to 6.0 million 1&1 shares on market-friendly terms until June 30, 2027 remains unaffected by the capital increase.

The transaction strengthens the capital structure and financial flexibility of 1&1 AG. The contribution of the intercompany loan receivable as a contribution in kind also simplifies the Group’s internal financing structure. The contribution does not result in any additional cash outflow for United Internet AG; at the same time, it reaffirms the Company’s long-term commitment to 1&1 AG.