Eric Paul Lefkofsky - 25 Aug 2026 Form 4 Insider Report for Tempus AI, Inc. (TEM)

Reporting relationship: CEO and Chairman, Director, 10%+ Owner
Issuer ticker: TEM
Reported as of: 25 Aug 2026
Net transaction value: -$16,286,612
SEC form: 4
Accepted by SEC: 27 Aug 2026, 20:27:19 UTC
Prior SEC filing: 20 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Andrew Polovin, Attorney-in-Fact

Key filing fact

Eric Paul Lefkofsky filed Form 4 for Tempus AI, Inc. (TEM) on 27 Aug 2026.

Key facts

This page summarizes Eric Paul Lefkofsky's Form 4 filing for Tempus AI, Inc. (TEM).
30 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 27 Aug 2026, 20:27.

Change

Previous filing in this sequence was filed on 20 Aug 2026.
Current net transaction value: -$16,286,612.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001114357 Primary reporting owner

LEFKOFSKY ERIC P

Relationship: CEO and Chairman, Director, 10%+ Owner
Address: C/O TEMPUS AI, INC., 600 WEST CHICAGO AVENUE, SUITE 510, CHICAGO
Signature: /s/ Andrew Polovin, Attorney-in-Fact
Signature date: 27 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TEM transaction

Class A Common Stock

Sale

Transaction value: $48,663
Shares: -760
Change %: -0.01%
Price: $64.03
Shares after: 8,717,023
Date: 25 Aug 2026
Ownership: By Gray Media, LLC
Footnotes: F1, F2, F3

TEM transaction

Class A Common Stock

Sale

Transaction value: $140,270
Shares: -2,168
Change %: -0.02%
Price: $64.70
Shares after: 8,714,855
Date: 25 Aug 2026
Ownership: By Gray Media, LLC
Footnotes: F1, F3, F4

TEM transaction

Class A Common Stock

Sale

Transaction value: $260,225
Shares: -3,944
Change %: -0.05%
Price: $65.98
Shares after: 8,710,911
Date: 25 Aug 2026
Ownership: By Gray Media, LLC
Footnotes: F1, F3, F5

TEM transaction

Class A Common Stock

Sale

Transaction value: $282,648
Shares: -4,218
Change %: -0.05%
Price: $67.01
Shares after: 8,706,693
Date: 25 Aug 2026
Ownership: By Gray Media, LLC
Footnotes: F1, F3, F6

TEM transaction

Class A Common Stock

Sale

Transaction value: $700,513
Shares: -10,282
Change %: -0.12%
Price: $68.13
Shares after: 8,696,411
Date: 25 Aug 2026
Ownership: By Gray Media, LLC
Footnotes: F1, F3, F7

TEM transaction

Class A Common Stock

Sale

Transaction value: $1,551,480
Shares: -22,495
Change %: -0.26%
Price: $68.97
Shares after: 8,673,916
Date: 25 Aug 2026
Ownership: By Gray Media, LLC
Footnotes: F1, F3, F8

TEM transaction

Class A Common Stock

Sale

Transaction value: $897,385
Shares: -12,851
Change %: -0.15%
Price: $69.83
Shares after: 8,661,065
Date: 25 Aug 2026
Ownership: By Gray Media, LLC
Footnotes: F1, F3, F9

TEM transaction

Class A Common Stock

Sale

Transaction value: $55,194
Shares: -782
Change %: -0.01%
Price: $70.58
Shares after: 8,660,283
Date: 25 Aug 2026
Ownership: By Gray Media, LLC
Footnotes: F1, F3, F10

TEM transaction

Class A Common Stock

Sale

Transaction value: $114,550
Shares: -1,789
Change %: -0.01%
Price: $64.03
Shares after: 15,253,680
Date: 25 Aug 2026
Ownership: By Blue Media, LLC
Footnotes: F1, F2, F3

TEM transaction

Class A Common Stock

Sale

Transaction value: $329,517
Shares: -5,093
Change %: -0.03%
Price: $64.70
Shares after: 15,248,587
Date: 25 Aug 2026
Ownership: By Blue Media, LLC
Footnotes: F1, F3, F4

TEM transaction

Class A Common Stock

Sale

Transaction value: $611,107
Shares: -9,262
Change %: -0.06%
Price: $65.98
Shares after: 15,239,325
Date: 25 Aug 2026
Ownership: By Blue Media, LLC
Footnotes: F1, F3, F5

TEM transaction

Class A Common Stock

Sale

Transaction value: $665,744
Shares: -9,935
Change %: -0.07%
Price: $67.01
Shares after: 15,229,390
Date: 25 Aug 2026
Ownership: By Blue Media, LLC
Footnotes: F1, F3, F6

TEM transaction

Class A Common Stock

Sale

Transaction value: $1,646,089
Shares: -24,161
Change %: -0.16%
Price: $68.13
Shares after: 15,205,229
Date: 25 Aug 2026
Ownership: By Blue Media, LLC
Footnotes: F1, F3, F7

TEM transaction

Class A Common Stock

Sale

Transaction value: $3,640,512
Shares: -52,784
Change %: -0.35%
Price: $68.97
Shares after: 15,152,445
Date: 25 Aug 2026
Ownership: By Blue Media, LLC
Footnotes: F1, F3, F8

TEM transaction

Class A Common Stock

Sale

Transaction value: $2,104,606
Shares: -30,139
Change %: -0.2%
Price: $69.83
Shares after: 15,122,306
Date: 25 Aug 2026
Ownership: By Blue Media, LLC
Footnotes: F1, F3, F9

TEM transaction

Class A Common Stock

Sale

Transaction value: $129,655
Shares: -1,837
Change %: -0.01%
Price: $70.58
Shares after: 15,120,469
Date: 25 Aug 2026
Ownership: By Blue Media, LLC
Footnotes: F1, F3, F10

TEM transaction

Class A Common Stock

Sale

Transaction value: $6,467
Shares: -101
Change %: -0.01%
Price: $64.03
Shares after: 824,530
Date: 25 Aug 2026
Ownership: By Lefkofsky Family Foundation
Footnotes: F1, F2, F3

TEM transaction

Class A Common Stock

Sale

Transaction value: $18,375
Shares: -284
Change %: -0.03%
Price: $64.70
Shares after: 824,246
Date: 25 Aug 2026
Ownership: By Lefkofsky Family Foundation
Footnotes: F1, F3, F4

TEM transaction

Class A Common Stock

Sale

Transaction value: $33,980
Shares: -515
Change %: -0.06%
Price: $65.98
Shares after: 823,731
Date: 25 Aug 2026
Ownership: By Lefkofsky Family Foundation
Footnotes: F1, F3, F5

TEM transaction

Class A Common Stock

Sale

Transaction value: $38,732
Shares: -578
Change %: -0.07%
Price: $67.01
Shares after: 823,153
Date: 25 Aug 2026
Ownership: By Lefkofsky Family Foundation
Footnotes: F1, F3, F6

TEM transaction

Class A Common Stock

Sale

Transaction value: $92,997
Shares: -1,365
Change %: -0.17%
Price: $68.13
Shares after: 821,788
Date: 25 Aug 2026
Ownership: By Lefkofsky Family Foundation
Footnotes: F1, F3, F7

TEM transaction

Class A Common Stock

Sale

Transaction value: $199,088
Shares: -2,887
Change %: -0.35%
Price: $68.96
Shares after: 818,901
Date: 25 Aug 2026
Ownership: By Lefkofsky Family Foundation
Footnotes: F1, F3, F8

TEM transaction

Class A Common Stock

Sale

Transaction value: $116,476
Shares: -1,668
Change %: -0.2%
Price: $69.83
Shares after: 817,233
Date: 25 Aug 2026
Ownership: By Lefkofsky Family Foundation
Footnotes: F1, F3, F9

TEM transaction

Class A Common Stock

Sale

Transaction value: $7,199
Shares: -102
Change %: -0.01%
Price: $70.58
Shares after: 817,131
Date: 25 Aug 2026
Ownership: By Lefkofsky Family Foundation
Footnotes: F1, F3, F10

TEM transaction

Class A Common Stock

Sale

Transaction value: $42,260
Shares: -660
Change %: -0.33%
Price: $64.03
Shares after: 199,340
Date: 25 Aug 2026
Ownership: By Vas.org Foundation
Footnotes: F1, F2, F3

TEM transaction

Class A Common Stock

Sale

Transaction value: $121,830
Shares: -1,883
Change %: -0.94%
Price: $64.70
Shares after: 197,457
Date: 25 Aug 2026
Ownership: By Vas.org Foundation
Footnotes: F1, F3, F4

TEM transaction

Class A Common Stock

Sale

Transaction value: $226,245
Shares: -3,429
Change %: -1.7%
Price: $65.98
Shares after: 194,028
Date: 25 Aug 2026
Ownership: By Vas.org Foundation
Footnotes: F1, F3, F5

TEM transaction

Class A Common Stock

Sale

Transaction value: $244,519
Shares: -3,649
Change %: -1.9%
Price: $67.01
Shares after: 190,379
Date: 25 Aug 2026
Ownership: By Vas.org Foundation
Footnotes: F1, F3, F6

TEM transaction

Class A Common Stock

Sale

Transaction value: $608,128
Shares: -8,926
Change %: -4.7%
Price: $68.13
Shares after: 181,453
Date: 25 Aug 2026
Ownership: By Vas.org Foundation
Footnotes: F1, F3, F7

TEM transaction

Class A Common Stock

Sale

Transaction value: $1,352,157
Shares: -19,605
Change %: -11%
Price: $68.97
Shares after: 161,848
Date: 25 Aug 2026
Ownership: By Vas.org Foundation
Footnotes: F1, F3, F8

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 10 footnotes

Footnote F1

This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 8, 2026.

Footnote F2

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.6575 to $64.28 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F3

The Reporting Person is (i) a member of, and controls a limited liability company that is a member of, 346 Long LLC, (ii) the sole manager of each of Black Media, LLC, Blue Media, LLC and Gray Media, LLC, (iii) a trustee of each of Lefkofsky Family Foundation and Vas.org Foundation. The Reporting Person's spouse is the trustee of the Lefkofsky Family 2025 GRAT and Lefkofsky Family 2026 GRAT.

Footnote F4

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.4121 to $65.39 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F5

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.43 to $66.4092 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F6

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.43 to $67.42 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F7

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.44 to $68.4361 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F8

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.44 to $69.4374 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F9

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.44 to $70.4357 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F10

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.4472 to $70.71 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC remarks

Due to the 30 line limitation in Table I, this report is being filed across two forms. This is the first of two filings.