SUBJECT-12927.dossier · person · status: active
HK
subject of file

Holden Karnofsky

Co-CEO of Open Philanthropy, co-founder of GiveWell, married to Daniela Amodei
Tracked because Co-CEO of Open Philanthropy, co-founder of GiveWell, married to Daniela Amodei · 6 documented connections
Facts on record1
Connections mapped6
Sources cited7
✦ Thin coverage gap +12 connected to 6 entities · only 1 facts on record · flagged for follow-up research
Evidence: 1P
Network web → Timeline → Compare with… → Position Drift → Coverage tone → View on Graph → Export CSV JSON Dossier ← Entity Directory
Stated vs Revealed
No documented contradictions on file.
PATTERN person → [employment] → institution 47× PATTERN institution → [employment] → person 47× PATTERN person → [founder] → institution → [employment] → person 11× PATTERN person → [employment] → institution → [founder] → person 11× PATTERN person → [spouse] → person → [founder] → person 10×
TIMELINE Role Overlap Visualizer →
Connection Map
Key Connections
→ Open Philanthropy institution
employment
Holden Karnofsky stepped down from the CEO role at Open Philanthropy.
→ Anthropic company
employment
Holden Karnofsky joined Anthropic after stepping down as CEO of Open Philanthropy.
← Daniela Amodei person
spouse
Anthropic co-founder married to Open Philanthropy co-CEO
Facts (1)
Data Freshness
Ageing Last update: 161d ago · Avg age: 305d
Confidence Tiers: Primary Source — cross-referenced government/corporate filings Pending Review — sourced but not independently verified AI Inference — analytical hypothesis from cross-referencing
✓ Verified Findings (1)
Independently re-checked: a second model read the source artifact and confirmed it supports the extracted claim.
✓ verified Primary Source Holden Karnofsky stepped down from Open Philanthropy CEO role to join Anthropic
Date: 2025-01-15 Added: 23 Apr 2026 ↗ SOURCE: EA Forum discussion of connections
All Connections (6)
→ Open Philanthropy institution
employment primary since 2026
Holden Karnofsky stepped down from the CEO role at Open Philanthropy.
→ Anthropic company
employment primary since 2026
Holden Karnofsky joined Anthropic after stepping down as CEO of Open Philanthropy.
← Daniela Amodei person
spouse confirmed
Anthropic co-founder married to Open Philanthropy co-CEO
← Dustin Moskovitz person
philanthropic partner secondary since 2015
Holden Karnofsky co-founded Open Philanthropy, which was founded by Dustin Moskovitz and Cari Tuna.
← Dario Amodei person
Collaborator on AI governance and philanthropy inferential since 2020
Holden Karnofsky, co-founder of Open Philanthropy, has engaged with Dario Amodei on AI risk and long-termist funding priorities.
← Good Ventures institution
former employee / affiliate secondary since 2011
Holden Karnofsky was the co-founder and co-CEO of GiveWell, and later played a key role in Open Philanthropy, which is the primary grantmaking vehicle funded and operated by Good Ventures. He worked closely with the Good Ventures team on grant recommendations.
Sources (7)
2026 UNVERIFIED Research: Holden Karnofsky — Lobbying disclosures (no results) government_disclosure Processed 📜 Receipt
2026-05-10 UNVERIFIED SEARCH_ERROR: Holden Karnofsky not found in fec claim_flag Processed 📜 Receipt
2026 UNVERIFIED Research: Holden Karnofsky — SEC filings (no results) sec_filing Processed 📜 Receipt
2026 UNVERIFIED Research: Holden Karnofsky — FEC donations (no results) fec_record Processed 📜 Receipt
2026 UNVERIFIED Research: Holden Karnofsky — Court records (no results) court_document Processed 📜 Receipt
2026 UNVERIFIED Research: Holden Karnofsky — Parliamentary records (no results) parliamentary_record Processed 📜 Receipt
2025-01 ↗ EA Forum discussion of connections web_search Processed 📜 Receipt