Marathon Group

Marathon Group, also known as Marathon Investment Firm and Marathon Asset Management, is a Russian‑based investment firm. The organisation provides asset management and investment advisory services to its clients. It operates under the Marathon brand, offering portfolio management and related financial solutions. Its headquarters are located in Russia, as indicated in the organisational context. The firm’s core activity centres on managing investments on behalf of institutional and private investors. No further details about the specific markets served or client base are disclosed in the available sources.

The firm is owned by individuals who are subject to international sanctions, including an oligarch linked to Russia’s foreign minister and Alexander Vinokurov, who is listed under EU sanctions. This ownership structure has drawn attention from regulatory bodies and hacktivist groups alike. In March 2022, the hacktivist collective Anonymous claimed responsibility for a breach that exfiltrated approximately 52 GB of internal emails, amounting to roughly 62 000 messages, which were subsequently published via DDoSecrets. A separate incident reported on 1 March 2022 described a similar leak of 62 000 internal emails from the same entity, also attributed to Anonymous as part of their #OpRussia campaign. These incidents highlight the firm’s exposure to cyber‑risk amid heightened geopolitical tensions. No additional information about subsidiaries, parent companies, or precise employee numbers is provided in the source material.