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T. Denny Sanford

South DakotaFinance

AIProfile Summary

T. Denny Sanford is a South Dakota-based finance billionaire born in 1935, with an estimated net worth of ~$2.4B RTB. The data provided does not include details on how he built his wealth, but it does show long-running political giving and multiple Sanford Foundation filings FEC ProPublica 990.

Philanthropy

The data shows three Sanford Foundation filings in 2023, with total grants paid of $20,521 and total reported foundation assets of $106,120 ProPublica 990. One Sanford Foundation filing reported $0 in grants, $0 in revenue, $0 in expenses, and $0 in assets ProPublica 990.

Political Activity

FEC records show 88 contributions totaling $3,010,672.50 from 1978-09-08 to 2025-12-29 FEC. The largest recipients were Americans for Prosperity Action at $1,000,000, Trump 47 Committee at $844,600, the Republican National Committee at $420,865, and Make America Great Again Inc. at $155,400 FEC. Party breakdown data shows $816,572.50 to Republicans, $1,000 to Democrats, and $2,193,100 listed as Unknown FEC.

In the News

The news data provided includes a 2026 article about Sanford Health merging with North Memorial Health NewsAPI. No additional article text about T. Denny Sanford himself was provided in the dataset.

AI-generated summary from fec, rtb, propublica_990, gdelt 6/27/2026 (gpt-5.4-mini). All claims are derived from the source data shown below.

USU.S. Presence

residenceSioux Falls, South Dakota

990Philanthropy

$106KFoundation Assets
$21KGrants Paid
3Foundations
Sanford FoundationMorgan City, LA
Private grantmaking foundation (IRS NTEE T20)
Assets: $90KRevenue: $34KGrants: $20KTax Year: 2023
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Sanford FoundationGrand Rapids, MI
Health care (IRS NTEE E05)
Assets: $16KRevenue: $3KGrants: $995Tax Year: 2023
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Sanford Foundation
Assets: $0Revenue: $0Grants: $0
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Source: ProPublica (990) annual filing · latest on record (retrieved 3/9/2026) (proPublica_990)

FECPolitical Contributions

$3.0MTotal Contributed
88Contributions
1978–2025Date Range

By Party

Unknown
$2.2M
REP
$817K
DEM
$1K

Top Recipients

AMERICANS FOR PROSPERITY ACTION, INC. (AFP ACTION) DBA CVA ACTION AND DBA LIBRE ACTION$1.0M
TRUMP 47 COMMITTEE, INC.$845K
REPUBLICAN NATIONAL COMMITTEE$421K
MAKE AMERICA GREAT AGAIN INC.$155K
MCCAIN VICTORY 2008$69K
Source: FEC contribution filings · latest on record (retrieved 3/10/2026) (fec)

PBSScore Breakdown

D
26.5
Public Benefit Score

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.

Philanthropy65% weight
0%

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

Transparency35% weight
75%

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.

T. Denny Sanford — Public Benefit Score D (27) | Billionaire Army