David Duffield
American engineer and entrepreneur
Source: Wikidata — retrieved 8/30/2026 (wikidata)
Profile Summary
David Duffield is an American engineer and entrepreneur in the technology industry. Born in 1941 and associated with Nevada, he has an estimated net worth of ~$11.8 billion. Wikidata
Business & SEC Activity
Duffield is identified as a technology entrepreneur and a major shareholder of Workday. A June 2026 report said he sold 107,500 Workday shares; the report does not provide the sale value. Wikidata NewsAPI
Philanthropy
The Duffield Family Foundation reported $14.5 million in grants paid and $260.0 million in total assets for tax year 2023. It also reported $15.2 million in revenue and $16.2 million in expenses. ProPublica 990
Political Activity
The most recent 100 federal contributions on file total at least $2.05 million, but this sample does not represent his full contribution history. In the sample, at least $2.02 million went to PACs or other recipients, compared with $29,600 to Republican recipients and $217.95 to Democratic recipients; the largest listed recipient was Duty First Nevada PAC, with $2 million. FEC
In the News
One validated report in the supplied news data said David Duffield sold 107,500 shares of Workday on June 8, 2026. The report was published by TheMarketsDaily.com. 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 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)
Top Recipients (in the sample)
Matched by name only. These are the donations the FEC lists under this person’s name — so a different person with the same name can show up here too.
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 8/31/2026 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