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Conrad Prebys

property developer and philanthropist

AIProfile Summary

Conrad Prebys was a U.S. property developer and philanthropist born in 1933, with an estimated net worth of ~$1.0B Wikidata. His wealth came from real estate development, and the data also shows a large charitable foundation tied to his name WikidataProPublica 990.

Business & SEC Activity

The available data identifies Prebys as a property developer, but does not provide additional details about specific companies or transactions Wikidata. His foundation reported $1,125,949,431 in assets in tax year 2023, with $59,988,874 in grants paid and $63,631,241 in total expenses ProPublica 990.

Philanthropy

The Conrad Prebys Foundation reported $59,988,874 in grants paid in 2023 and held $1,125,949,431 in total assets ProPublica 990. A foundation 990 is an annual tax filing that shows a private foundation’s finances, including assets, grants, revenue, and expenses ProPublica 990.

Political Activity

From 1996 to 2015, Prebys made 23 federal contributions totaling $65,100 FEC. Most of the money went to Republican recipients, with $55,100 to REP and $10,000 to PAC/Other; the largest recipient was the Republican Party of San Diego County at $25,000 FEC.

In the News

Recent coverage mentions the Prebys Foundation buying another downtown San Diego office building NewsAPI. This suggests the foundation remains active in local real estate, but the article provided here does not add further details about Conrad Prebys himself NewsAPI.

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

USU.S. Presence

otherU.S. economic presence

990Philanthropy

$1.1BFoundation Assets
$60.0MGrants Paid
1Foundation
Conrad Prebys FoundationSan Diego, CA
Private independent foundation (IRS NTEE T22)
Assets: $1.1BRevenue: $-58,066,159Grants: $60.0MTax Year: 2023
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Source: ProPublica (990) annual filing · latest on record (retrieved 3/9/2026) (proPublica_990)

FECPolitical Contributions

$65KTotal Contributed
23Contributions
1996–2015Date Range

By Party

REP
$55K
PAC/Other
$10K

Top Recipients

REPUBLICAN PARTY OF SAN DIEGO COUNTY$25K
ROMNEY VICTORY INC$10K
ROMNEY FOR PRESIDENT INC.$5K
REPUBLICAN NATIONAL COMMITTEE$5K
SAN DIEGO COUNTY REPUBLICAN PARTY - FED$5K
Source: FEC contribution filings · latest on record (retrieved 3/10/2026) (fec)

PBSScore Breakdown

A
71.3
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
63%

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
88%

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. View on Wikidata

Conrad Prebys — Public Benefit Score A (71) | Billionaire Army