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 *
Morris Gregory Colburn
   2. Issuer Name and Ticker or Trading Symbol
ENTEGRIS INC [ENTG] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Vice President, GM, Field Ops
(Last)
(First)
(Middle)
22330 WYBENGA LANE		 3. Date of Earliest Transaction (Month/Day/Year)
11/08/2010
(Street)

NUEVO, CA 92567		 4. If Amendment, Date Original Filed(Month/Day/Year)
11/09/2010		 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 11/08/2010   M   30,000 A $ 1.13 107,616 (1) D  
Common Stock 11/08/2010   S   30,000 D $ 6.5726 (2) (3) 77,616 (1) D  
Common Stock 11/08/2010   M   3,500 A $ 2.1 81,116 (1) D  
Common Stock 11/08/2010   S   3,500 D $ 6.5 (2) 77,616 (1) D  
Common Stock 11/08/2010   S   18,457 D $ 6.5528 (2) (4) 59,159 D  
Common Stock               16,822 I By 401k Plan

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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
Employee Stock Option (Right to Buy) $ 1.13 11/08/2010   M     30,000   (5) 02/19/2016 Common Stock 30,000 $ 0 (6) 60,000 D  
Employee Stock Option (Right to Buy) $ 2.1 11/08/2010   M     3,500   (7) 12/16/2015 Common Stock 3,500 $ 0 (6) 10,500 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Morris Gregory Colburn
22330 WYBENGA LANE
NUEVO, CA 92567		       Vice President, GM, Field Ops  

Signatures

 Peter W. Walcott, Attorney-In-Fact for Gregory C. Morris   12/14/2010
**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) This amendment is to correct an overstatement in the Table 1, Item 5 Amount of Securities Beneficially Owned that were previously reported in the Reporting Person's November 9, 2010 Form 4 as amended.
(2) These shares were sold pursuant to a Rule 10b5-1 Trading Plan established by the Reporting Person on May 17, 2010 .
(3) The price reported in column 4 is a weighted average price reported in reliance on a letter from the Office of Chief Counsel, Securities and Exchange Commission's Division of Corporate Finance to the Society of Corporate Securities & Corporate Governance Professionals dated June 25, 2008. These shares were sold in multiple transactions at prices ranging from $6.50 to $6.65 inclusive. The reporting person undertakes to provide Entegris, Inc. any shareholder of Entegris, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
(4) The price reported in column 4 is a weighted average price reported in reliance on a letter from the Office of Chief Counsel, Securities and Exchange Commission's Division of Corporate Finance to the Society of Corporate Securities & Corporate Governance Professionals dated June 25, 2008. These shares were sold in multiple transactions at prices ranging from $6.50 to $6.60, inclusive. The reporting person undertakes to provide Entegris, Inc. any shareholder of Entegris, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
(5) The option is exercisable in three equal annual installments. The first installment became exercisable on 2/19/2010 and the next two installments become exercisable on 2/19/2011 and 2/19/2012.
(6) These options were granted pursuant to an employee stock option plan that provides for the grant of options in consideration of services as an employee.
(7) This option is exercisable in four equal annual installlments. The first installment became exercisable on 12/16/2009 and the next three installments become exercisable on 12/16/2010, 12/16/2011 and 12/16/2012.

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