John Catsimatidis
American billionaire, radio talk show host, and politician
Source: Wikidata — retrieved 10/11/2026 (wikidata)Dispute
Profile Summary
A net worth stated in this summary may be out of date.
Wikidata describes John Catsimatidis as an American billionaire, radio talk-show host and politician, with an estimated net worth of ~$4.8B. Wikidata
Business & SEC Activity
SEC filings identify Catsimatidis as an insider filer associated with root9B Technologies, Inc. SEC EDGAR He filed Forms 3 and 4 between 2007 and 2016, including a 2016 amended Form 4; Form 3 reports an insider's initial ownership, while Form 4 reports subsequent changes in ownership. SEC EDGAR
Philanthropy
The John and Margo Catsimatidis Foundation Inc.'s 2023 Form 990 reported $406,333 in grants paid, $35,862 in total assets, $885,343 in revenue and $406,858 in expenses. ProPublica 990 Form 990 filings are annual tax returns that disclose a private foundation's finances and grants. ProPublica 990
Political Activity
FEC filings show at least 100 federal contributions in the most recent 100 contributions on file, totaling $602,455.17: $372,400 to Republican recipients and $230,055.17 with an unknown party designation. FEC The sample's largest recipients were the Republican National Committee ($250,000), Emmer Majority Builders ($50,000), Team Jordan ($17,000), The Great Gulf of America Fund ($15,000), and Sydney Gruters for Congress ($14,000). FEC
These donations are matched to this person by name only, so some may belong to a different person with the same name: FEC filings can include a donor's employer and city, but our matching does not check them against what we know about this person.
In the News
Page Six reported that Catsimatidis marked the 25th anniversary of 9/11 with a gala concert that raised $1.5 million. NewsAPI TALKERS magazine reported that Catsimatidis, identified as the owner of Red Apple Media and WABC, interviewed Hunter Biden on his "Cats Roundtable" program. NewsAPI The Daily Beast reported on a social-media post by his daughter, Andrea Catsimatidis. NewsAPI
U.S. Presence
Philanthropy
Foundations are matched to a person by name, not by trustee records — so a same-surname family foundation can land here in error. Every entity below links to its full IRS filing; if one doesn’t belong, tell us at hello@skylarkcreations.com and we’ll pull it.
Political Contributions
These figures cover the 100 most recent of 2,061 federal contributions on file, not the full record. The total, party split, top recipients and dates below are all computed over that sample, so each is a floor rather than a complete figure.
By Party (in the sample)
Every party in this sample is listed here. The bars are rounded for display; unrounded they total exactly $602,455.17.
Top Recipients (in the sample)
Matched by name only. These donations are matched to this person by name only, so some may belong to a different person with the same name: FEC filings can include a donor's employer and city, but our matching does not check them against what we know about this person.
SEC Filings
Associated Companies
Entities appearing alongside this person in SEC full-text search — an association, not necessarily ownership or control. Follow each link to the primary SEC record to judge for yourself.
Recent Insider Filings
Score Breakdown
The giving score 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 record we hold about this person — net worth, SEC filings, foundation 990s, news coverage, Wikidata. It measures our coverage, not how open the person is. Each further kind of record scores higher, up to eight. Political donation records matched to a person by name alone are not counted: they may belong to someone else with the same name. From October 7, 2026, our own AI-written summary and the profile photo are not counted either — neither is a public record — so grades that leaned on them moved down that day.
Data: SEC EDGAR, ProPublica 990s, GDELT / NewsAPI, Wikidata
Formula (v2): Giving score = 65% x Philanthropy + 35% x Data coverage
Scored on 10/16/2026 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