Robert Ziff
Profile Summary
Robert Ziff (born 1966) is a U.S.-based billionaire in the finance industry who is associated with New York. He has an estimated net worth of ~$7.2B. RTB
Philanthropy
ProPublica-reported 2023 Form 990 filings show three foundations tied to the Ziff name: Ziff Heritage Foundation (NY), Robert D Ziff Foundation (NY), and Harold And Libby Ziff Foundation (CA). Across these filings, total foundation assets were $4,340,971 and total grants paid were $0 in 2023. ProPublica 990
Political Activity
FEC data from 2016-09-30 to 2025-12-10 shows 100 contributions totaling $704,004.49, with most dollars categorized as PAC/Other ($543,904.49) and additional amounts to Republican recipients ($131,600) and Democratic recipients ($19,900). The top listed recipients by amount were AMERICA UNITED PAC ($250,000) and DEFENDING MAIN STREET SUPERPAC INC. ($250,000), followed by PUT UTAH FIRST PAC ($10,000), THE LINCOLN PROJECT ($10,000), and KATKO FOR CONGRESS ($8,200). 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.