Insider Trading & Ownership of Eric Paul Lefkofsky

Location: Wilmongton, DE
Summary: The estimated net worth of Eric Paul Lefkofsky is at least $1,748,390,159 dollars as of 21 May 2026. Eric Paul Lefkofsky is the CEO and Chairman, Director, 10%+ Owner of Tempus AI, Inc. and owns shares of Tempus AI, Inc. (TEM) stock worth about $1.71B. Eric Paul Lefkofsky is the 10%+ Owner of Groupon, Inc. and owns shares of Groupon, Inc. (GRPN) stock worth about $40.92M. Eric Paul Lefkofsky is the 10%+ Owner of Personalis, Inc. and owns shares of Personalis, Inc. (PSNL) stock worth about $193.5K.
Signature: /s/ Andrew Polovin, Attorney-in-Fact
All Insider Reports: All Insider Reports

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Key facts

Eric Paul Lefkofsky has 3 issuer positions tracked on this page.
Estimated disclosed ownership value: $1,748,390,159.
Recent insider filing activity is available below.

Change

Largest disclosed position: Tempus AI, Inc. ($1,707,280,466).
Past-year value change for that position: -$200,566,843.

Research use

This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
You can cross-check role, issuer, and filing chronology directly against the SEC source.

Evidence

Filed on Form 4

Insider ownership context is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Ownership of Eric Paul Lefkofsky

TEM Forms 3/4/5

Tempus AI, Inc.

Relationship: CEO and Chairman, Director, 10%+ Owner
Holdings value: $1,707,280,466
Past year net change: -$200,566,843
Change %: -11%
Report period: 19 May 2026

GRPN Forms 3/4/5

Groupon, Inc.

Relationship: 10%+ Owner
Holdings value: $40,916,193
Past year net change
Change %
Report period: 14 May 2024

PSNL Forms 3/4/5

Personalis, Inc.

Relationship: 10%+ Owner
Holdings value: $193,500
Past year net change
Change %
Report period: 28 Nov 2023

Insider Transactions Reported by Eric Paul Lefkofsky:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.