Flat Capital AB (publ) (FLAT B:STO) is a Sweden-based investment company focused on long-term, passive minority investments in unlisted growth-stage companies led by dedicated entrepreneurs worldwide; its portfolio includes prominent holdings such as Klarna, OpenAI, Instabee, Figma, DeepL, Perplexity, Physical Intelligence, ElevenLabs and Magic. Founded in 2013 and headquartered in Stockholm, the company operates globally with a significant portion of its current investments in Nordic companies, leveraging a unique network of investors and entrepreneurs to access opportunities typically unavailable to public markets; it targets attractive markets driven by structural trends like AI and maintains low ongoing costs with a hands-off approach. Recent developments include the completion in October 2025 of the integration of Double Sunday AB, which holds over 24 million shares in Klarna, via in-kind issues approved at an extraordinary general meeting; investments of approximately 38.5 MSEK in a second AI portfolio of four leading U.S. AI companies through a Special Purpose Vehicle tied to its OpenAI relationship; additional funding in AI robotics firm Physical Intelligence bringing total exposure to about 18 MSEK; and a strategic expansion in early 2025 to include selected defense sector opportunities.