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Principals

3

Principal Net Worth

$5.8B

Data Flags

None - Tempus AI public (NASDAQ: TEM, IPO June 2024), foundation team with LinkedIn profiles, comprehensive leadership verified, Giving Pledge confirmed (2012)

Lefkofsky Family Foundation

UnknownHigh Confidence

Last verified: Jan 17, 2026

Details

Source File
research/organizations/lefkofsky-family-foundation.md
UID
fo-lefkofsky-family-foundation

Also Known As

**Lefkofsky Family Office** (informal reference)**Eric Lefkofsky Family Foundation** (alternate name)Sometimes referenced through Tempus AI or Lightbank for investment activitiesHistorical: **Lefkofsky Investments** (prior to Lightbank formation)

Principals (3)

Eric LefkofskyFounder/PrincipalOWNS
$5.8B
Children (4)Various family involvementOWNS
Liz LefkofskyPhilanthropistOWNS

Team Members (4)

Eric LefkofskyChairman and Co-founder
WORKS_AT
Katelyn WhittakerExecutive Assistant
WORKS_AT
Liz LefkofskyPresident and Co-founder
WORKS_AT
Rachel GrahamDirector of Programs & Strategic Advisor
WORKS_AT

Known Associates (9)

Andrew Mason

: Groupon founder/CEO (fired 2013)

Brad Kewell

: Groupon co-founder, Lightbank co-founder (Keywell Family Foundation)

Google/Alphabet

: Tempus partnerships for AI/healthcare

J.B. Pritzker

: Illinois Governor, fellow Chicago philanthropist (Pritzker family)

Jeff Jordan

: Former Groupon CEO, Andreessen Horowitz partner

Ken Griffin

Citadel

: Citadel founder, major Chicago donor

Lurie Family

: Children's hospital founders

Mayo Clinic, Duke Health, Northwestern Medicine

: Tempus strategic partnerships

Northwestern University

: Major institutional relationship

Relationship Strength

Loading relationships...

Sources (3)

Changelog

  • 2025-12-27Updated Current Team section with detailed LinkedIn URLs for both Lefkofsky Family Foundation staff (4 members) and Tempus AI leadership team (9 executives). Added Rachel Graham (Director of Programs), Katelyn Whittaker (Executive Assistant). Updated Tempus executives with current CFO Jim Rogers, COO Ryan Fukushima, CCO Terron Bruner, and other C-suite members with LinkedIn profiles. Previous team section had limited detail and no LinkedIn URLs.
  • 2025-12-11Initial research file created. Overview, Principals (Eric & Liz Lefkofsky), Entities (Tempus AI, Lightbank, Foundation, former companies), Current Team, Relationships, Recent Activity (Tempus IPO June 2024), Hiring Signals, Key Characteristics, Aliases, Sources.

Engagement & Preferences