ProPublica: Signal Foundation 990 filings — $29.4M revenue, -$8.6M net, sustained by Acton loan
Source documentation Strength strong
Signal Technology Foundation (501(c)(3)) 2024 filing: Revenue $29.4M (74% contributions, 22% program services). Expenses $38.0M. Net assets -$4.7M. Original $105M loan from Brian Acton (2018) at 0% interest, due 2068, being forgiven ~$10-30M/year. Spending exceeds revenue; sustainability remains an open question.
Published December 1, 2024
Added March 22, 2026