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Organizations / Anthropic Also known as: Anthropic PBC, Anthropic AI
Holder Category Stake Value at $380B Pledge rates vary: pre-2025 hires up to 50% with 3:1 match; post-2024 hires 25% with 1:1 match.
Employees 12%–18% $46B–$68B $3.3B invested across 3 rounds; no philanthropic pledge
Investor 13%–15% $49B–$57B Alignment researcher; no publicly documented EA connections
Investor 2%–3% $7.6B–$11B Married to Holden Karnofsky (GiveWell co-founder)
Investor 2%–3% $7.6B–$11B Scaling laws pioneer; safety-motivated co-founder; no documented EA pledge
Investor 2%–3% $7.6B–$11B GWWC signatory; early GiveWell supporter
Investor 2%–3% $7.6B–$11B Former OpenAI Policy Director; responsible AI advocate; EA-adjacent framing
Investor 2%–3% $7.6B–$11B Interpretability pioneer; participated in EA events; safety-focused
Investor 2%–3% $7.6B–$11B GPT-3 lead author; chose Anthropic's safety mission over other options
Investor 2%–3% $7.6B–$11B $500M already in Good Ventures nonprofit vehicle
Investor 0.8%–2.5% $3B–$9.5B Led Series A; Skype co-founder; major AI safety funder
Investor 0.6%–1.7% $2.3B–$6.5B $10.75B invested; exact stake undisclosed; primary cloud partner
Investor — GIC, Coatue, D.E. Shaw, Dragoneer, Founders Fund, ICONIQ, MGX
Institutional — Total 49.3% $187B