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 *
CHRISTMAN DANIEL W
   2. Issuer Name and Ticker or Trading Symbol
ENTEGRIS INC [ENTG] 		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)
2900 DARTMOUTH ROAD		 3. Date of Earliest Transaction (Month/Day/Year)
08/06/2005
(Street)

ALEXANDRIA, VA 22314		 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 08/06/2005   A   2,780 A (1) 2,780 D  
Common Stock 08/06/2005   A   695 A (2) 695 D  

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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
Non-Employee Director Stock Option (right to buy) $ 9.4 08/06/2005   A   11,120     (3) 04/25/2015 Common Stock 11,120 (4) 11,120 D  
Non-Employee Director Stock Option (right to buy) $ 10.68 08/06/2005   A   13,900     (5) 04/28/2014 Common Stock 13,900 (6) 13,900 D  
Non-Employee Director Stock Option (right to buy) $ 5.66 08/06/2005   A   13,900     (7) 04/24/2013 Common Stock 13,900 (8) 13,900 D  
Non-Employee Director Stock Option (right to buy) $ 10.91 08/06/2005   A   6,950     (9) 04/26/2012 Common Stock 6,950 (10) 6,950 D  
Non-Employee Director Stock Option (right to buy) $ 6.55 08/06/2005   A   13,900     (11) 10/11/2011 Common Stock 13,900 (12) 13,900 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CHRISTMAN DANIEL W
2900 DARTMOUTH ROAD
ALEXANDRIA, VA 22314		   X      

Signatures

 /s/ Peter W. Walcott. attorney-in-fact for Daniel W. Christman   08/08/2005
**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) Received in exchange for 2,000 shares of Mykrolis Corporation common stock in connection with the merger of Mykrolis Corporation into Eagle DE, Inc. pursuant to Agreement and Plan of Merger, dated March 21, 2005 (the "Merger"); pursuant to the Merger Eagle DE, Inc. changed its name to Entegris, Inc.
(2) Received in exchange for 500 shares of Mykrolis Corporation common stock in connection with the Merger.
(3) This option vests 25% on 4/25/2006 and in 3 equal annual installments thereafter.
(4) Received in exchange for 8,000 shares of Mykrolis Corporation common stock at a price of $13.07 per share in connection with the Merger.
(5) This option vests 25% on 4/28/2005 and in 3 equal annual installments thereafter.
(6) Received in exchange for 10,000 shares of Mykrolis Corporation common stock at a price of $14.85 per share in connection with the Merger.
(7) This option vests 25% on 4/24/2004 and in 3 equal annual installments thereafter.
(8) Received in exchange for 10,000 shares of Mykrolis Corporation common stock at a price of $7.87 per share in connection with the Merger.
(9) This option vests 25% on 4/26/2003 and in 3 equal annual installments thereafter.
(10) Received in exchange for 5,000 shares of Mykrolis Corporation common stock at a price of $15.16 per share in connection with the Merger.
(11) This option vests 25% on 10/11/2002 and in 3 equal annual installments thereafter.
(12) Received in exchange for 10,000 shares of Mykrolis Corporation common stock at a price of $9.10 per share in connection with the Merger.

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