Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL 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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1. Name and Address of Reporting Person *
YOUNG GREGOR T IV
 2. Issuer Name and Ticker or Trading Symbol
S&T BANCORP INC [STBA] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EXECUTIVE VICE PRESIDENT
(Last)
(First)
(Middle)

800 PHILADELPHIA STREET		 3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2008
(Street)


INDIANA, PA 15701		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Reporting
(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 at end of Issuer's Fiscal Year
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Common Stock 12/31/2008   J4(1) 507 A $ 35.5 18,682 I 401 K
Common Stock 12/31/2008   A4(2) 173 A $ 30.69 4,249 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. 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 control number. SEC 2270 (9-02)

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 at End of Issuer's Fiscal Year
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Options (Right to Buy) $ 24.4           06/17/2002 12/17/2011 Common Stock
15,000
  15,000
D
 
Stock Options (Right to Buy) $ 29.965           01/01/2005 12/15/2013 Common Stock
10,000
  10,000
D
 
Stock Options (Right to Buy) $ 37.08           01/01/2006 12/20/2014 Common Stock
10,000
  10,000
D
 
Stock Options (Right to Buy) $ 37.855           01/01/2007(3) 12/19/2015 Common Stock
10,000
  10,000
D
 

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
YOUNG GREGOR T IV
800 PHILADELPHIA STREET
INDIANA, PA 15701		       EXECUTIVE VICE PRESIDENT  

Signatures

Timothy P. McKee P. O. A. for Gregor T Young IV 02/17/2009
**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) These shares represent the annual increase in shares held in a 401-K plan
(2) On December 15, 2008, restricted stock was granted under the S&T Bancorp, Inc. 2003 Incentive Stock Plan, contingent upon the achievement of an earnings per share target under the S&T Bank Incentive Program for Senior Management. The actual number of shares granted and communicated to the recipient was determined after actual earnings per share were determined for the Registrant and presented to the Registrant's board of directors on January 29, 2009.
(3) 25% vesting on 01/01/07, 25% vesting on 01/01/08, 25% vesting on 01/01/09 and 25% vesting on 01/01/10

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