Gwendolyn Sontheim Meyer
American show jumper, heiress (Cargill), billionaire
Source: Wikidata — retrieved 10/11/2026 (wikidata)Dispute
Profile Summary
A net worth stated in this summary may be out of date.
Gwendolyn Sontheim Meyer is an American show jumper and Cargill heiress, according to Wikidata. She has an estimated net worth of ~$5.4B. Wikidata
Philanthropy
Three listed foundation filings for tax year 2023 reported combined assets of $75,113,355 and grants paid totaling $4,335,436. The Meyer Foundation in New York reported $56,167,395 in assets and $2,997,596 in grants paid; Meyer Charitable Foundation in Illinois reported $18,310,471 in assets and $1,336,840 in grants; and Meyer Foundation in Illinois reported $635,489 in assets and $1,000 in grants. Form 990 filings are annual tax returns that disclose a nonprofit's finances, including assets, revenue, expenses, and grants. ProPublica 990
Political Activity
FEC records show 69 contributions totaling $4,364,453.49 from February 10, 2019, through June 30, 2026. The party breakdown was $2,916,800 categorized as Unknown and $1,447,653.49 categorized as Democratic. The largest listed recipients were Democratic Grassroots Victory Fund ($1,730,000), DCCC ($874,700), Nancy Pelosi Victory Fund ($594,700), DNC Services Corp / Democratic National Committee ($355,000), and Jeffries Battleground Protection Fund ($322,100). 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.
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
By Party
Every party on file is listed here. The bars are rounded for display; unrounded they total exactly $4,364,453.49.
Top Recipients
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.
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