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James Grugett — Co-founder at Manifold (Prediction Market)

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Source Tablepersonnel
Source IDtvnqHg9lUb
Source URLen.wikipedia.org/wiki/Manifold_(prediction_market)
ParentManifold (Prediction Market)
Children
CreatedApr 21, 2026, 11:19 AM
UpdatedApr 21, 2026, 11:19 AM
SyncedApr 21, 2026, 11:19 AM

Record Data

idtvnqHg9lUb
personIdJames Grugett(person)
organizationIdManifold (Prediction Market)(organization)
personEntityIdJames Grugett(person)
personDisplayName
orgEntityIdManifold (Prediction Market)(organization)
orgDisplayName
roleCo-founder
roleTypekey-person
startDate2021-12
endDate
isFounderYes
appointedBy
background
sourceen.wikipedia.org/wiki/Manifold_(prediction_market)
notesCo-founder of Manifold Markets. Carnegie Mellon graduate. Later moved to work on Codebuff (YC Fall 2024 batch). Reduced involvement circa 2024–2025.

Source Check Verdicts

confirmed99% confidence

Last checked: 7/20/2026

1 → confirmed

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Thing ID: tvnqHg9lUb

Source Table: personnel

Source ID: tvnqHg9lUb