Sec Form 4 Filing - TUCKER JOHN R @ KENNAMETAL INC - 2011-07-26

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 TUCKER JOHN R 2. Issuer Name and Ticker or Trading Symbol KENNAMETAL INC [ kmt] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Vice President (Last) (First) (Middle) 1600 TECHNOLOGY WAY 3. Date of Earliest Transaction (MM/DD/YY) 07/26/2011 (Street) LATROBE, PA15650 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 Common Stock 07/26/2011 A 4,028 ( 1 ) ( 4 ) A $ 0 7,105 D Common Stock 07/24/2012 A 4,028 ( 2 ) ( 4 ) A $ 0 11,133 D Common Stock 07/24/2012 A 2,009 ( 3 ) ( 4 ) A $ 0 13,142 D Common Stock 08/01/2013 F 3,524 D $ 45.24 9,618 ( 5 ) 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other TUCKER JOHN R 1600 TECHNOLOGY WAY LATROBE, PA15650 Vice President Signatures By: Kevin G. Nowe For: John R. Tucker 08/12/2013 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents shares deemed to have been earned by the Compensation Committee of the Board of Directors (the "Committee") on July 26, 2011 with respect to the first tranche of the performance unit award granted to the reporting person on August 1, 2010 under the Kennametal Inc. Stock and Incentive Plan of 2010 (the "2010 Peformance Unit Award"). The vesting and actual payout of these shares remain subject to the reporting person's continued employment with Kennametal Inc. (the "Company") through August 1, 2013. ( 2 )Represents shares deemed to have been earned by the Committee on July 24, 2012 with respect to the second tranche of the 2010 Performance Unit Award. The vesting and actual payout of these shares remain subject to the reporting person's continued employment with the Company through August 1, 2013. ( 3 )Represents shares deemed to have been earned by the Committee on July 24, 2012 with respect to the first tranche of the performance unit award granted to the reporting person on August 1, 2011 under the Plan (the "2011 Performance Unit Award"). The vesting and actual payout of these shares remain subject to the reporting person's continued employment with the Company through August 1, 2014. ( 4 )The reporting person was advised by the Issuer when these awards were granted that these awards would not be reportable prior to all vesting conditions being satisfied (including the continued employment condition), which just occurred on August 1, 2013 for the 2010 Performance Unit Award and which will not occur until August 1, 2014 for the 2011 Performance Unit Award. The reporting person is filing this Form 4 prior thereto due to the Issuer now concluding that the reporting date should have been the earlier date on which the Committee deemed the various tranches of these awards earned. ( 5 )Includes 626 shares held within the Kennametal Inc. 401K Plan.

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