STOCK TITAN

Tempus AI (TEM) CEO Lefkofsky sells 22,335 shares to cover RSU taxes

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Tempus AI, Inc. CEO and Chairman Eric P. Lefkofsky reported a mandated tax-related share sale. On May 19, entities associated with him reported updated Class A Common Stock holdings, and he sold 22,335 shares at a weighted average of $44.07 per share.

According to the disclosure, this sale was required to cover statutory tax withholding obligations tied to the vesting of restricted stock units under the company’s equity plans and "does not represent a discretionary sale" by Lefkofsky. After the transaction, he directly holds 2,230,721 Class A shares, with additional indirect holdings through entities including Blue Media, LLC, Gray Media, LLC and the Lefkofsky Family 2025 GRAT.

Positive

  • None.

Negative

  • None.
Insider LEFKOFSKY ERIC P
Role CEO and Chairman
Sold 22,335 shs ($984K)
Type Security Shares Price Value
Sale Class A Common Stock 22,335 $44.07 $984K
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 2,230,721 shares (Direct, null); Class A Common Stock — 8,841,783 shares (Indirect, By Gray Media, LLC)
Footnotes (1)
  1. Represents the number of shares required to be sold to cover the statutory tax withholding obligations in connection with the vesting of the restricted stock units. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of minimum statutory tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary sale by the Reporting Person. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.65 to $44.46 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. 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.
Shares sold 22,335 shares Class A Common Stock sold on May 19 to cover taxes
Weighted average sale price $44.07 per share Open-market sale price range $43.65–$44.46
Direct holdings after transaction 2,230,721 shares Class A Common Stock held directly by Lefkofsky after sale
Blue Media, LLC holdings 15,656,469 shares Indirect Class A holdings attributed via Blue Media, LLC
Gray Media, LLC holdings 8,841,783 shares Indirect Class A holdings attributed via Gray Media, LLC
Lefkofsky Family 2025 GRAT holdings 10,000,000 shares Indirect Class A holdings via Lefkofsky Family 2025 GRAT
restricted stock units financial
"in connection with the vesting of the restricted stock units"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
statutory tax withholding obligations financial
"sold to cover the statutory tax withholding obligations in connection"
sell to cover financial
"funded by a "sell to cover" transaction and does not represent"
Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.
weighted average price financial
"The price reported is a weighted average price. These shares"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Lefkofsky Family 2025 GRAT financial
"The Reporting Person's spouse is the trustee of the Lefkofsky Family 2025 GRAT"
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
LEFKOFSKY ERIC P

(Last)(First)(Middle)
C/O TEMPUS AI, INC.
600 WEST CHICAGO AVENUE, SUITE 510

(Street)
CHICAGO ILLINOIS 60654

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Tempus AI, Inc. [ TEM ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
XOfficer (give title below)Other (specify below)
CEO and Chairman
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/19/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Class A Common Stock05/19/2026S(1)22,335D$44.07(2)2,230,721D
Class A Common Stock8,841,783IBy Gray Media, LLC(3)
Class A Common Stock15,656,469IBy Blue Media, LLC(3)
Class A Common Stock406IBy 346 Long LLC(3)
Class A Common Stock10,000,000ILefkofsky Family 2025 GRAT(3)
Class A Common Stock206IBy Black Media, LLC(3)
Class A Common Stock832,131IBy Lefkofsky Family Foundation(3)
Class A Common Stock250,000IBy Vas.org Foundation(3)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Represents the number of shares required to be sold to cover the statutory tax withholding obligations in connection with the vesting of the restricted stock units. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of minimum statutory tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary sale by the Reporting Person.
2. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.65 to $44.46 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.
3. 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.
/s/ Andrew Polovin, Attorney-in-Fact05/21/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Tempus AI (TEM) CEO Eric Lefkofsky report in this Form 4?

Eric Lefkofsky reported a mandated sale of shares and updated holdings. The filing shows a tax-related sale of 22,335 Tempus AI Class A shares on May 19 and discloses his remaining direct and indirect ownership positions across several family-related entities and foundations.

How many Tempus AI (TEM) shares were sold and at what price?

The filing reports a sale of 22,335 Class A shares at a weighted average price of $44.07 per share. A footnote explains the shares were sold in multiple trades between $43.65 and $44.46, and detailed trade breakdowns are available upon request.

Why did Eric Lefkofsky’s Tempus AI (TEM) shares get sold in this transaction?

The shares were sold to cover statutory tax withholding obligations from vesting restricted stock units. The company’s equity plans require a "sell to cover" transaction for minimum tax withholding, and the disclosure states this does not represent a discretionary sale by Lefkofsky.

How many Tempus AI (TEM) shares does Eric Lefkofsky hold after this Form 4 sale?

Following the tax-related sale, Lefkofsky directly holds 2,230,721 Class A shares. He also has indirect ownership through various entities and foundations, including positions such as 15,656,469 shares via Blue Media, LLC and 8,841,783 shares via Gray Media, LLC.

What indirect Tempus AI (TEM) holdings are reported for Eric Lefkofsky?

The filing lists indirect Class A holdings through several entities, including Blue Media, LLC, Gray Media, LLC, the Lefkofsky Family 2025 GRAT, 346 Long LLC, Black Media, LLC, Lefkofsky Family Foundation and Vas.org Foundation. Each entity’s post-transaction share count is disclosed separately in the report.

Does this Tempus AI (TEM) Form 4 indicate a discretionary stock sale by the CEO?

The disclosure states the sale was mandated to satisfy statutory tax withholding obligations from restricted stock unit vesting. It describes the transaction as a required "sell to cover" under the company’s equity incentive plans, explicitly noting it does not represent a discretionary sale by Lefkofsky.