John A. Sobrato
American businessman, developer
Source: Wikidata — retrieved 10/11/2026 (wikidata)Dispute
Profile Summary
A net worth stated in this summary may be out of date.
John A. Sobrato is an American businessman and developer in California’s real-estate industry, born in 1939. He has an estimated net worth of ~$6.3B. Wikidata
Business & SEC Activity
Sobrato is identified as a real-estate developer. Wikidata
Philanthropy
Two Mountain View, California foundations reported combined assets of $1.003B and $86.5M in grants paid in tax year 2023. The Sobrato Foundation reported $126.1M in assets and $18.2M in grants paid, while the Sobrato Family Foundation reported $876.7M in assets and $68.3M in grants paid. ProPublica 990
Political Activity
Federal Election Commission records list 10 contributions totaling $16,100 from January 20, 1988, through March 10, 2025. Donations included $15,300 to Democratic recipients and $800 to Republican recipients; the listed top recipients were Liccardo for Congress ($13,600), Friends of Simitian ($1,000), Tom Campbell for Congress Committee ($800), and Anna Eshoo for Congress ($700). 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 $16,100.
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