GiveWell — Founder (text): Holden Karnofsky

NoteThe source directly confirms that Holden Karnofsky is listed as a founder of GiveWell in the Wikidata record. The claim requests the founder as a text value (not entity reference), and the source provides exactly that: the text string 'Holden Karnofsky' in the 'founded by' field. The subject (GiveWell) matches the claim perfectly. High confidence because this is a direct statement in a structured database with a reference to English Wikipedia.