Mark Zuckerberg and Priscilla Chan have joined the $700 million Series C funding round for the Swedish AI-powered preventive healthcare startup Neko Health as individual investors, as the company prepares to open its first clinics in New York in 2026. The funding round was led by Lightspeed Venture Partners and O.G. Venture Partners, with other individual investors including Tim Ferriss, Maria Sharapova, Thierry Henry, Jimmy Iovine, will.i.am, Ari Emanuel, Claudia Schiffer, Sir Matthew Vaughn, and Danny Meyer. This follows Neko Health's $260 million Series B round announced in January 2025. The company has conducted more than 100,000 body scan appointments across the UK and Sweden, while over 350,000 people have either joined its waitlist or signed up for a scan, and it reported a 75% rebooking rate. Founded by Spotify CEO Daniel Ek and Hjalmar Nilsonne, Neko Health launched its first clinic in Stockholm in 2023 and offers a 60-minute, radiation-free body scan priced at £299 in the UK and 2,750 Swedish krona (SEK) in Sweden. Returning institutional investors include Atomico, General Catalyst and Lakestar, while new investors include Liberty City Ventures, Positive Sum and BDT & MSD.