Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Hunter D Michael
   2. Issuer Name and Ticker or Trading Symbol
PROSPERITY BANCSHARES INC [PRSP] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Vice Chairman
(Last)
(First)
(Middle)
1505 HIGHWAY 35 NORTH		 3. Date of Earliest Transaction (Month/Day/Year)
03/25/2008
(Street)

ROCKPORT, TX 78382		 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 03/24/2008   S   5,702 D $ 30.2225 69,100 D  
Common Stock 03/24/2008   S   5,600 D $ 30.2755 63,500 D  
Common Stock 03/24/2008   S   1,200 D $ 30.2504 62,300 D  
Common Stock 03/24/2008   S   6,700 D $ 30.2675 55,600 D  
Common Stock 03/24/2008   S   1,700 D $ 30.332 53,900 D  
Common Stock 03/24/2008   S   3,500 D $ 30.3452 50,400 D  
Common Stock 03/24/2008   S   1,100 D $ 30.3608 49,300 D  
Common Stock 03/24/2008   S   2,000 D $ 30.3738 47,300 D  
Common Stock 03/24/2008   S   3,200 D $ 30.3915 44,100 D  
Common Stock 03/24/2008   S   1,800 D $ 30.3886 42,300 D  
Common Stock 03/24/2008   S   3,100 D $ 30.4021 39,200 D  
Common stock 03/24/2008   S   2,300 D $ 30.45 36,900 D  
Common Stock 03/24/2008   S   2,100 D $ 30.4504 34,800 D  
Common Stock 03/24/2008   S   2,800 D $ 30.4739 32,000 D  
Common Stock 03/24/2008   S   1,900 D $ 30.5001 30,100 D  
Common Stock 03/24/2008   S   6,900 D $ 30.5062 23,200 D  
Common Stock 03/24/2008   S   2,300 D $ 30.5999 20,900 D  
Common Stock 03/24/2008   S   3,100 D $ 30.6252 17,800 D  
Common stock 03/24/2008   S   4,600 D $ 30.6526 13,200 D  
Common Stock 03/24/2008   S   5,400 D $ 30.672 7,800 D  
Common Stock 03/24/2008   S   3,000 D $ 31 4,800 D  
Common Stock 03/24/2008   S   1,500 D $ 31.0012 3,300 D  
Common Stock 03/24/2008   S   3,300 D $ 31.0583 0 D  
Common Stock               9,427 I Through IRA

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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Hunter D Michael
1505 HIGHWAY 35 NORTH
ROCKPORT, TX 78382		   X     Vice Chairman  

Signatures

 /s/ D. Michael Hunter   03/25/2008
**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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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