[Form 4] Tempus AI, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Tempus AI, Inc. executive reports pre‑planned stock sale. An officer of Tempus AI, Inc., serving as EVP & Chief Administrative & Legal Officer, sold 1,302 shares of Class A common stock on 12/16/2025 at a price of $67.42 per share. After this transaction, the executive beneficially owns 89,280 Class A shares in direct ownership. The sale was made under a Rule 10b5‑1 trading plan that the reporting person adopted on September 15, 2025, indicating the trade was executed according to a pre‑established plan rather than a discretionary same‑day decision.

Insider Trade Summary

Net Seller: 1,302 shares ($87,781)

Net Sell 1 txn

Insider Phelps Erik

Role EVP & Chief Admin & Legal Off

Sold 1,302 shs ($88K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	1,302	$67.42	$88K

Holdings After Transaction: Class A Common Stock — 89,280 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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^*

Phelps Erik

(Last) (First) (Middle)

C/O TEMPUS AI, INC.

600 WEST CHICAGO AVENUE, SUITE 510

(Street)

CHICAGO IL 60654

(City) (State) (Zip)

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)
	EVP & Chief Admin & Legal Off

3. Date of Earliest Transaction (Month/Day/Year)
12/16/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	12/16/2025		S(1)		1,302	D	$67.42	89,280	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 September 15, 2025.

	/s/ Andrew Polovin, Attorney-in-Fact	12/18/2025
	** 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.

FAQ

What insider transaction did Tempus AI (TEM) disclose in this filing?

The filing discloses that a Tempus AI, Inc. officer sold 1,302 shares of Class A common stock on 12/16/2025 at a price of $67.42 per share.

Who is the reporting person in the Tempus AI (TEM) insider transaction?

The reporting person is an officer of Tempus AI, Inc., holding the title EVP & Chief Admin & Legal Off, and is filing individually as one reporting person.

How many Tempus AI (TEM) shares does the insider own after the reported sale?

Following the reported transaction, the officer beneficially owns 89,280 shares of Tempus AI, Inc. Class A common stock in direct ownership.

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

Yes. The explanation states that the transaction was made pursuant to a Rule 10b5‑1 trading plan adopted by the reporting person on September 15, 2025.

What type of security was involved in the Tempus AI (TEM) insider transaction?

The transaction involved Class A common stock of Tempus AI, Inc., recorded in the non‑derivative securities table.

Is this Tempus AI (TEM) insider filing for one or multiple reporting persons?

The document indicates it is a Form filed by One Reporting Person, not a joint or group filing.