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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1. Name and Address of Reporting Person * HAUCK EDWARD C   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) SR EXECUTIVE VICE PRESIDENT (Last) (First) (Middle) 800 PHILADELPHIA STREET 3. Date of Earliest Transaction (Month/Day/Year) 03/15/2011 (Street) INDIANA, PA 15701 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 03/15/2011   A(1)   3,382 A $ 22.365 5,370 D   Common Stock               17,472 I 401k

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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

Stock Options (Right to Buy)

$ 29.965

01/01/2005

12/15/2013

Common Stock

5,000

5,000

D

Stock Options (Right to Buy)

$ 37.08

01/01/2006

12/20/2014

Common Stock

11,000

11,000

D

Stock Options (Right to Buy)

$ 37.855

01/01/2007

12/19/2015

Common Stock

11,000

11,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
HAUCK EDWARD C 800 PHILADELPHIA STREET INDIANA, PA 15701			SR EXECUTIVE VICE PRESIDENT

Signatures

/s/ Timothy P. McKee P.O.A. for Edward C. Hauck		03/17/2011
**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)	On March 15, 2011, the Compensation and Benefits Committee of the Registrant's board of directors approved the grant of restricted stock under the S&T Bancorp, Inc. 2003 Incentive Stock Plan, contingent upon the achievement of an earnings per share target under the S&T Bancorp, Inc. Management Incentive Plan for 2010. The actual number of shares granted and communicated to the recipient was determined after actual earnings per share were determined for the Registrant and the Registrant's Form 10-K was accepted by the SEC on March 15, 2011. Shares will vest 100% on March 15, 2013, subject to the restrictions of Section 30.10 of 31 C.F.R. Part 30, an interim final regulation promulgated by the United States Department of Treasury governing executive compensation for recipients of financial assistance under the Troubled Assets Relief Program ("TARP").

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