Dagmar Dolby & family
Profile Summary
Dagmar Dolby & family are U.S.-based technology billionaires in California with an estimated net worth of ~$4.8B. Their wealth is tied to Dolby Laboratories, Inc. (ticker DLB), a company classified under “Patent Owners & Lessors” in SEC industry coding. RTB SEC EDGAR
Business & SEC Activity
Dolby Laboratories, Inc. (DLB) is the primary operating company associated with the family in the SEC data, with 1,001 total SEC filings and 803 insider-related filings. Recent insider filings include multiple Form 4 reports in February 2026 and several Form 144 filings; Form 4 is used to report insiders’ purchases/sales and other ownership changes, while Form 144 is a notice of a planned sale of restricted or control securities. The SEC company list also includes an entity named “Dolby Dagmar” (CIK 0001537372). SEC EDGAR
U.S. Presence
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 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.