$16.5M Tempus AI stock sale planned by Lefkofsky

Tempus AI, Inc. (TEM) is the issuer for a planned secondary sale of its Class A Common Stock by stockholder Eric Lefkofsky and related entities under Rule 144.

Rhea-AI Filing Summary

Tempus AI, Inc. (TEM) is the issuer for a planned secondary sale of its Class A Common Stock by stockholder Eric Lefkofsky and related entities under Rule 144. A total of 250,000 shares are planned to be sold through J.P. Morgan Securities LLC, with an aggregate market value of $16,542,500. Tempus AI had 173,390,967 shares outstanding as of August 25, 2026. The shares to be sold were acquired via stock compensation, direct cash investments, and a prior donation transaction involving Blue Media LLC and are in addition to shares already sold by affiliated entities in the prior three months.

Key Figures

Shares to be sold: 250,000 shares of Class A Common Stock Aggregate market value of securities to be sold: $16,542,500 Shares outstanding: 173,390,967 shares +4 more

7 metrics

Shares to be sold 250,000 shares of Class A Common Stock Planned Rule 144 sale by Eric Lefkofsky and related entities

Aggregate market value of securities to be sold $16,542,500 Based on the market price for the 250,000 shares planned to be sold

Shares outstanding 173,390,967 shares Tempus AI Class A Common Stock outstanding as of August 25, 2026

Planned sale by Blue Media, LLC 135,000 shares Included within the 250,000 shares covered by this notice

Planned sale by Gray Media, LLC 57,500 shares Included within the 250,000 shares covered by this notice

Recent sale on 05/27/2026 (Blue Media, LLC) 133,000 shares for $6,210,943 Reported under securities sold during the past 3 months

Recent sale on 06/29/2026 (Blue Media, LLC) 133,000 shares for $7,645,208.81 Reported under securities sold during the past 3 months

Key Terms

Rule 144, aggregate market value, direct investment, stock compensation, +1 more

5 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

aggregate market value financial

"Class A Common Stock ... 250000 | 16542500 | 173390967"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

direct investment financial

"Class A Common Stock | 09/14/2017 | Direct Investment | Issuer"

stock compensation financial

"Class A Common Stock | 01/22/2025 | Stock Compensation | Issuer"

Stock compensation is a way companies reward employees by giving them shares or options to buy shares in the company, rather than just paying them cash. It aligns employees’ interests with those of shareholders, as employees benefit when the company’s stock value increases. For investors, stock compensation can influence company expenses and ownership structure, affecting the company’s overall value and stock performance.

donation financial

"Class A Common Stock | 12/04/2025 | Donation | Blue Media LLC"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing for Tempus AI (TEM) disclose?

It discloses that Eric Lefkofsky and related entities plan to sell 250,000 shares of Tempus AI Class A Common Stock under Rule 144 through J.P. Morgan Securities LLC, with an aggregate market value of $16,542,500 based on the reported market price.

How many Tempus AI (TEM) shares are outstanding in this Form 144?

The Form 144 reports that Tempus AI had 173,390,967 shares of Class A Common Stock outstanding as of August 25, 2026, which serves as the reference for the size of the planned Rule 144 sale relative to the total share base.

Which entities related to Eric Lefkofsky are involved in the Tempus AI (TEM) sale?

The filing states that the form relates to sales by Blue Media, LLC (135,000 shares), Gray Media, LLC (57,500 shares), Lefkofsky Family Foundation (7,500 shares), and Vas.org Foundation (50,000 shares), for a combined planned sale of 250,000 shares.

What prior Tempus AI (TEM) share sales are reported in the past three months?

Affiliated entities sold Class A shares including 133,000 shares for $6,210,943 on May 27, 2026, 133,000 shares for $7,645,208.81 on June 29, 2026, and 135,000 shares for $5,678,417 on July 28, 2026, among other smaller transactions by related foundations.

How were the Tempus AI (TEM) shares to be sold originally acquired?

Reported acquisitions include 135,000 shares via stock compensation on January 22, 2025, 57,500 shares via direct investment on September 14, 2017, 7,500 shares via direct investment on March 5, 2020, and 50,000 shares associated with a donation involving Blue Media LLC on December 4, 2025.

Who is acting as agent for the Tempus AI (TEM) Rule 144 sale?

The notice is signed by J.P. Morgan Securities LLC as agent and attorney-in-fact for Eric Lefkofsky, indicating J.P. Morgan will act as the broker for the planned Rule 144 sales of Tempus AI Class A Common Stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/25/2026 - 04:58 PM EDT Accepted by SEC EDGAR 08/25/2026 - 04:57 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001114357
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Tempus AI, Inc.
SEC File Number	001-42130
Address of Issuer	600 West Chicago Avenue, Suite 510 Chicago ILLINOIS 60654
Phone	800-976-5448
Name of Person for Whose Account the Securities are To Be Sold	Eric Lefkofsky
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director
Relationship to Issuer	10% Stockholder

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A Common Stock	J.P. Morgan Securities LLC 270 Park Avenue, 10th Floor New York NY 10017	250000	16542500	173390967	08/25/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A Common Stock	01/22/2025	Stock Compensation	Issuer			135000	01/22/2025	Compensation
Class A Common Stock	09/14/2017	Direct Investment	Issuer			57500	09/14/2017	Cash
Class A Common Stock	03/05/2020	Direct Investment	Issuer			7500	03/05/2020	Cash
Class A Common Stock	12/04/2025	Donation	Blue Media LLC who acquired the shares on 09/24/2015			50000	12/04/2025	Donation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Blue Media, LLC C/o Tempus AI, Inc. 600 West Chicago Avenue, Suite 510 Chicago IL 60654	Class A Common Stock	05/27/2026	133000	6210943
Blue Media, LLC C/o Tempus AI, Inc. 600 West Chicago Avenue, Suite 510 Chicago IL 60654	Class A Common Stock	06/29/2026	133000	7645208.81
Blue Media, LLC C/o Tempus AI, Inc. 600 West Chicago Avenue, Suite 510 Chicago IL 60654	Class A Common Stock	07/28/2026	135000	5678417
Gray Media, LLC C/o Tempus AI, Inc. 600 West Chicago Avenue, Suite 510 Chicago IL 60654	Class A Common Stock	05/27/2026	33250	1552736
Gray Media, LLC C/o Tempus AI, Inc. 600 West Chicago Avenue, Suite 510 Chicago IL 60654	Class A Common Stock	06/29/2026	33250	1911302.2
Gray Media, LLC C/o Tempus AI, Inc. 600 West Chicago Avenue, Suite 510 Chicago IL 60654	Class A Common Stock	07/28/2026	57500	2418585
Lefkofsky Family Foundation C/o Tempus AI, Inc. 600 West Chicago Avenue, Suite 510 Chicago IL 60654	Class A Common Stock	07/28/2026	7500	315468
Vas.org Foundation C/o Tempus AI, Inc. 600 West Chicago Avenue, Suite 510 Chicago IL 60654	Class A Common Stock	07/28/2026	50000	2103118

144: Remarks and Signature

Remarks	This form relates to sales by Blue Media, LLC (135,000 shares), Gray Media, LLC (57,500 shares), Lefkofsky Family Foundation (7,500 shares) and Vas.org Foundation (50,000 shares) of which Mr. Lefkofsky is the authorized signatory.
Date of Notice	08/25/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/08/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Eric Lefkofsky
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)