Sec Form 4 Filing - OWENS WILLIAM L @ NBT BANCORP INC - 2009-04-30

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 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 OWENS WILLIAM L 2. Issuer Name and Ticker or Trading Symbol NBT BANCORP INC [ NBTB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 52 SOUTH BROAD STREET 3. Date of Earliest Transaction (MM/DD/YY) 04/30/2009 (Street) NORWICH, NY13815 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 NBT Bancorp Inc. Common Stock 04/30/2009 A 845 A $ 0 ( 1 ) 14,540.922 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Non-Qualified Stock Option (right to buy) $ 14.3492 01/28/2003( 2 ) 01/28/2012 NBT Bancorp Inc. Common Stock 582 582 D Non-Qualified Stock Option (right to buy) $ 16.0625 01/22/2002( 2 ) 01/22/2011 NBT Bancorp Inc. Common Stock 300 300 D Non-Qualified Stock Option (right to buy) $ 17.6008 01/01/2004( 2 ) 01/01/2013 NBT Bancorp Inc. Common Stock 900 900 D Non-Qualified Stock Option (right to buy) $ 20.7492 05/01/2006( 2 ) 05/01/2015 NBT Bancorp Inc. Common Stock 1,500 1,500 D Non-Qualified Stock Option (right to buy) $ 21.74 05/01/2007( 2 ) 05/01/2016 NBT Bancorp Inc. Common Stock 1,500 1,500 D Non-Qualified Stock Option (right to buy) $ 22.1388 01/01/2005( 2 ) 01/01/2014 NBT Bancorp Inc. Common Stock 1,375 1,375 D Non-Qualified Stock Option (right to buy) $ 22.4842 05/01/2008( 2 ) 05/01/2017 NBT Bancorp Inc. Common Stock 1,500 1,500 D Non-Qualified Stock Option (right to buy) $ 22.5508 05/01/2009( 2 ) 05/01/2018 NBT Bancorp Inc. Common Stock 1,500 1,500 D Non-Qualified Stock Option (right to buy) $ 23.2708 01/20/2006( 2 ) 01/20/2015 NBT Bancorp Inc. Common Stock 630 630 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other OWENS WILLIAM L 52 SOUTH BROAD STREET NORWICH, NY13815 X Signatures By: Michael J. Chewens, Power of Attorney For: William L Owens 05/04/2009 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Acquired pursuant to the formula provisions of the NBT Bancorp Inc. Omnibus Incentive Plan pursuant to which each outside director is entitled to receive an annual retainer for Board service in the form of restricted shares of the Company's common stock rather than cash that vests in three annual installments. ( 2 )Pursuant to NBT Non-Employee Director, Divisional Director and Subsidiary Director Stock Option Plan grant vests 40% for first year, 20% annually for following years.

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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