Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Park Sun 2. Issuer Name and Ticker or Trading Symbol TENET HEALTHCARE CORP [THC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP & Chief Financial Officer (Last) (First) (Middle) 14201 DALLAS PARKWAY 3. Date of Earliest Transaction (Month/Day/Year) 02/27/2026 (Street) DALLAS, TX 75254 4. If Amendment, Date 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 (City) (State) (Zip) 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 Common Stock 02/27/2026 M 4,670 A (1) 23,049 D Common Stock 02/27/2026 F 1,626(2) D $237.58(3) 21,423 D Common Stock 02/27/2026 F 1,985(4) D $239.39(5) 19,438 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

2026 February Restricted Stock Units

(6)

02/27/2026

A

7,520

(6)

(6)

Common Stock

7,520

$ 0

7,520

D

2024 February Restricted Stock Units

(7)

02/27/2026

M

4,670

(7)

(7)

Common Stock(8)

4,670

$ 0

4,671

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Park Sun 14201 DALLAS PARKWAY DALLAS, TX 75254			EVP & Chief Financial Officer

Signatures

Chad J. Wiener, as Attorney-in-fact for Sun Park		03/03/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Restricted stock units convert into common stock on a one-for-one basis.
(2)	Reflects shares delivered by reporting person to satisfy withholding taxes due upon vesting of performance share units.
(3)	Represents the closing price of the common stock of the Issuer on the vesting date for the award.
(4)	Shares withheld for payment of taxes upon vesting of restricted stock units in accordance with Rule 16b-3.
(5)	Represents the closing price of the common stock of the Issuer on February 27, 2026.
(6)	These time-based restricted stock units vest in one-third increments on each of the first, second and third anniversaries of the date of grant. Restricted stock units are settled in shares of the Company's common stock upon vesting.
(7)	The restricted stock units were granted pursuant to the 2019 Stock Incentive Plan on February 28, 2024, vest equally in 1/3 increments on the first, second and third anniversaries of the grant date, and the second 1/3 increment vested on February 27, 2026 (the business day prior to February 28, 2026, which fell on a weekend).
(8)	Time-based restricted stock units are settled in shares of the Company's common stock upon vesting.

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