Lyndal Stephens Greth
US businesswoman
Source: Wikidata — retrieved 8/30/2026 (wikidata)
Profile Summary
Lyndal Stephens Greth is a Texas businesswoman in the energy industry, born in 1975. Her estimated net worth is ~$27.4 billion. Wikidata
Business & SEC Activity
SEC records associate Greth with Diamondback Energy, Inc. (FANG) and with the Autry Stephens Management Trust, Endeavor Manager, LLC, Stephens Family Trust, and Stephens Family Trust #2. Her filings include seven insider filings, including Forms 3 and 4 and Schedules 13D and 13D/A. Form 3 reports an insider’s ownership, Form 4 reports changes in that ownership, and Schedule 13D discloses a significant ownership stake or related control information. 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
No giving data on file. That is a gap in our sources, not a finding that this person gives nothing — and because the component still counts as zero, it holds this score down. Know of a gift we are missing? Tell us and we will source it.
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