Anthropic Long-Term Benefit Trust — key-event: Richard Fontaine appointed as trustee

NoteThe source directly confirms all elements of the claim: (1) the entity is Anthropic's Long-Term Benefit Trust, (2) the key event is Richard Fontaine's appointment as a trustee/member, (3) the date is June 7, 2025 (which falls within the claimed 2025-06 timeframe), and (4) the additional context about Fontaine being CEO of CNAS is explicitly stated. The source text states: 'Anthropic's Long-Term Benefit Trust today announced the appointment of Richard Fontaine, CEO of the Center for a New American Security, as a new member of the Trust' dated 'Jun 7, 2025'.