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Holden Karnofsky — Co-Founder & Co-CEO at Coefficient Giving

personnelFailed source check

Metadata

Source Tablepersonnel
Source IDP0vX3gPV9e
Source URLcoefficientgiving.org/research/holden-karnofsky-is-leaving-open-phil-for-the-carnegie-endowment-for-international-peace/
ParentCoefficient Giving
Children—
CreatedMay 13, 2026, 11:22 AM
UpdatedMay 13, 2026, 11:22 AM
SyncedMay 13, 2026, 11:22 AM

Record Data

idP0vX3gPV9e
personIdHolden Karnofsky(person)
organizationIdCoefficient Giving(organization)
personEntityIdHolden Karnofsky(person)
personDisplayName—
orgEntityIdCoefficient Giving(organization)
orgDisplayName—
roleCo-Founder & Co-CEO
roleTypekey-person
startDate2011
endDate2024-04
isFounderYes
appointedBy—
background—
sourcecoefficientgiving.org/research/holden-karnofsky-is-leaving-open-phil-for-the-car…
notesCo-founded GiveWell (2007) and Open Philanthropy (2014). Took leave from Co-CEO role in 2023 to focus on AI strategy; formally departed April 2024 for Carnegie Endowment for International Peace. Joined Anthropic in 2025.

Source Check Verdicts

contradicted95% confidence

Last checked: 6/1/2026

1 → contradicted

Debug info

Thing ID: P0vX3gPV9e

Source Table: personnel

Source ID: P0vX3gPV9e