Katharine Rayner
American heiress (Cox Enterprises), billionaire, philanthropist
Source: Wikidata — retrieved 7/12/2026 (wikidata)
Profile Summary
Katharine Rayner is an American heiress associated with Cox Enterprises, born in 1945 and based in New York, with an estimated net worth of ~$6.3B. She is described as a billionaire and philanthropist. Wikidata
Business & SEC Activity
Rayner is identified as an heiress connected to Cox Enterprises in the media industry. Wikidata
Philanthropy
Two Rayner-linked foundations reported a combined $4,340,307 in total assets for tax year 2023 and $0 in grants paid. The Rayner Foundation (San Rafael, CA) reported $724,139 in assets, $18,468 in revenue, $34,475 in expenses, and $0 grants paid; the Betty Parsons And William P Rayner Foundation (Atlanta, GA) reported $3,616,168 in assets, $167,614 in revenue, $88,575 in expenses, and $0 grants paid. ProPublica 990
Political Activity
From 2024-06-25 to 2025-12-19, Rayner made 100 reported federal contributions totaling $423,065.28. The party breakdown shows $240,385.28 to Democrats, $179,180 to PACs/other committees, and $3,500 to other recipients; top recipients included HMP ($50,000), Jeffries Victory Fund ($50,000), DCCC ($38,000), Nevada State Democratic Party ($13,201.96), and Morelle Victory Fund ($12,000). FEC
U.S. Presence
Philanthropy
Political Contributions
By Party
Top Recipients
Score Breakdown
The PBS is a weighted average of 2 components. The formula is open and versioned — the weight percentages below show how much each component contributes to the final score.
Evidenced charitable giving — built on what they actually give each year, not parked assets. Dominated by generosity (annual giving relative to net worth — the share of your fortune you give), plus the absolute scale of that giving, plus a small nudge for signing the Giving Pledge (a commitment, not a realized action).
Data: ProPublica 990 charitable disbursements, net worth, The Giving Pledge registry
How much sourced, public accountability data exists — net worth, political contributions, SEC filings, foundation 990s, news coverage, and a verified profile. More public disclosure scores higher.
Data: FEC, SEC EDGAR, ProPublica 990s, GDELT / NewsAPI, Wikidata
Formula (v2): PBS = 65% x Philanthropy + 35% x Transparency
Scored on 6/23/2026 on a 0–100 scale. The score uses only the signals we have populated data for. Goal Impact, Controversy, and Community Approval are deferred until that data exists — Phase 1 goal adoption, controversy detection, and community votes respectively.
All data is sourced from public records. Each section links to its original source. View on Wikidata