SEC FORM 4

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

PORTER BIGGS C

(Last)

(First)

(Middle)

1445 ROSS AVENUE

SUITE 1400

(Street)

DALLAS

75202

(City)

(State)

(Zip)

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)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/01/2010

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	03/01/2010		M⁽¹⁾		16,667	A	$0.00	293,090	D
Common Stock	03/01/2010		F⁽²⁾		6,307	D	$5.27⁽²⁾	286,783	D
Common Stock	03/01/2010		M⁽³⁾		25,000	A	$0.00	311,783	D
Common Stock	03/01/2010		F⁽²⁾		9,112	D	$5.27⁽²⁾	302,671	D
Common Stock								25,000	I	By Trust

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
2007 March Restricted Units	⁽⁴⁾	03/01/2010		M			16,667	⁽⁴⁾	⁽⁴⁾	Common Stock	16,667	$0.00	0	D
2007 Performance Based Restricted Units (P)	⁽⁵⁾	03/01/2010		M			25,000	⁽⁵⁾	⁽⁵⁾	Common Stock	25,000	$0.00	0	D

Explanation of Responses:

1. Vesting of restricted units granted to the Reporting Person on March 1, 2007.

2. All of the shares reported as disposed of on this Form 4 were relinquished by the Reporting Person in exchange for the Company's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of the restricted units.

3. Vesting of performance-based restricted units granted to the Reporting Person on March 1, 2007.

4. These restricted units vested ratably on each of the first, second and third anniversaries of the date of grant. Restricted units are settled in shares of the Company's common stock upon vesting.

5. (BP) These restricted units were granted subject to cliff vesting conditions based on the average closing price of the Company's common stock on the last 40 trading days of 2009 ("Stock Price"), with vesting occurring on the third anniversary of the date of grant, as follows: 25,000 restricted units to vest if the Stock Price is $6.75 or less; 50,000 restricted units to vest if the Stock Price is $8.50; and 75,000 restricted units to vest if the Stock Price is $10.25 or greater. Based on the Stock Price of less than $6.75, 25,000 restricted units vested on March 1, 2010.

Remarks:

	/s/ Biggs C. Porter	03/03/2010
	** 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).
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