Theodore Leonsis
Profile Summary
Theodore Leonsis is identified as a U.S. sports-industry figure based in Maryland, born in 1956. He has an estimated net worth of ~$3.9 billion RTB.
Business & SEC Activity
SEC records list 143 insider filings associated with Leonsis and identify holdings or filing connections involving Tempus AI, Inc. and Groupon, Inc. SEC EDGAR Form 4 filings report changes in an insider’s ownership, while Form 144 filings notify regulators of a proposed securities sale; the records include both types of filings SEC EDGAR.
Philanthropy
The Leonsis Foundation Inc., based in Washington, D.C., reported total assets of $20,201, $1 in revenue, and $0 in expenses for tax year 2023. It reported $0 in grants paid ProPublica 990.
Political Activity
The available records contain at least 100 federal contributions; the figures below cover only the most recent 100 contributions in the sample, not Leonsis’s full history FEC. Those sampled contributions totaled $410,516.13, including $207,000.22 to Democratic committees, $6,600 to Republican committees, $1,902.99 to DFL committees, and $195,012.92 categorized as PAC/Other FEC. The largest listed recipients were Hillary Victory Fund ($108,412.92), DNC Services Corp./Democratic National Committee ($51,300), and Harris Victory Fund ($50,000) FEC.
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.
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
The filing we hold reports no grants paid. That is what the disclosure says, not a gap in our data — the source is linked below.
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.