Tempus AI (TEM) diagnostics CEO trades shares under 10b5-1 plan

Rhea-AI Filing Summary

Tempus AI, Inc. (TEM) reported an insider transaction by a company officer. On August 21, 2026, Thomas Edward Schoenherr, who serves as CEO, Diagnostics, reported a Form 4 transaction in Class A Common Stock involving 2,694 shares at $70.00 per share, with direct holdings reported at 87,021 shares following the transaction. The transaction is coded as a sale in the form fields but uses an acquisition flag in the SEC’s direction data, and it was carried out under a Rule 10b5-1 trading plan adopted on March 3, 2026.

Insider Trade Summary 10b5-1

Net Buyer: 2,694 shares

Net Buy 1 txn

Insider Schoenherr Thomas Edward

Role CEO, Diagnostics

Sold 2,694 shs ($189K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1	2,694	$70.00	$189K

Holdings After Transaction: Class A Common Stock — 87,021 shares (Direct)

Footnotes (1)

1. F1. This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 3, 2026.

Key Figures

Shares in transaction: 2,694 shares Transaction price per share: $70.00 per share Shares held after transaction: 87,021 shares +1 more

4 metrics

Shares in transaction 2,694 shares Class A Common Stock transaction on August 21, 2026

Transaction price per share $70.00 per share Reported price for the August 21, 2026 Class A Common Stock transaction

Shares held after transaction 87,021 shares Direct ownership of Class A Common Stock following the reported transaction

10b5-1 plan adoption date March 3, 2026 Date the reporting person adopted the Rule 10b5-1 trading plan governing the transaction

Key Terms

Rule 10b5-1 trading plan, Class A Common Stock, Reporting Person

3 terms

Rule 10b5-1 trading plan regulatory

"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

Class A Common Stock financial

"security_title: Class A Common Stock for the reported transaction"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

Reporting Person regulatory

"adopted by the Reporting Person on March 3, 2026"

FAQ

What insider transaction did Tempus AI, Inc. (TEM) report on this Form 4?

A company officer reported a Form 4 transaction in Class A Common Stock involving 2,694 shares at $70.00 per share on August 21, 2026, with direct ownership reported at 87,021 shares after the transaction.

Who from Tempus AI, Inc. (TEM) is the reporting person on this Form 4?

The reporting person is Thomas Edward Schoenherr, who is identified as CEO, Diagnostics of Tempus AI, Inc. He reported an insider transaction in the company’s Class A Common Stock.

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

The filing reports a transaction involving 2,694 shares of Tempus AI, Inc. Class A Common Stock at a reported price of $70.00 per share on August 21, 2026.

What are the reported holdings of the insider in Tempus AI (TEM) after the transaction?

After the reported transaction, the insider’s direct holdings are stated as 87,021 shares of Tempus AI, Inc. Class A Common Stock.

Was the Tempus AI (TEM) insider transaction under a Rule 10b5-1 trading plan?

Yes. The footnote states that the transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 3, 2026, and the Form 4’s Rule 10b5-1 checkbox is affirmed.

How is the direction of the Tempus AI (TEM) insider transaction characterized?

The transaction row is coded as a sale of Class A Common Stock, while the SEC’s acquired/disposed flag characterizes the direction as an acquisition. The filing also reports 87,021 shares held directly following the transaction.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/25/2026 - 04:15 PM Accepted by SEC EDGAR 08/25/2026 - 04:15 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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).

X

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^*

Schoenherr Thomas Edward

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO, Diagnostics

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/21/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	08/21/2026		S(1)		2,694	A	$70	87,021	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 3, 2026.

	/s/ Andrew Polovin, Attorney-in-Fact	08/25/2026
	** Signature of Reporting Person	Date
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)