SEC Form 4

FORM 4		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 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Rucci Corey (Last) (First) (Middle) 1613 RIVIERA LANE (Street) SOUTHLAKE TX 76092 (City) (State) (Zip)	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) VP, Business Development
	3. Date of Earliest Transaction (Month/Day/Year) 02/22/2017
	4. If Amendment, Date of 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

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	02/22/2017		M		3,950	A	$9.88	30,377.637	D
Common Stock	02/22/2017		F		2,464	D	$22.3	27,913.637	D
Common Stock	02/22/2017		M		4,873	A	$11.71	32,786.637	D
Common Stock	02/22/2017		F		3,310	D	$22.3	29,476.637	D
Common Stock	02/22/2017		M		3,599	A	$13.49	33,075.637	D
Common Stock	02/22/2017		F		2,639	D	$22.3	30,436.637	D
Common Stock	02/22/2017		M		6,498	A	$12.2	36,934.637	D
Common Stock	02/22/2017		F		4,510	D	$22.3	32,424.637	D
Common Stock	02/23/2017		S		7,247	D	$21.6785(1)	25,177.637	D
Common Stock								50,000	I	By IRA

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 Securities Underlying Derivative Security (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: 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)	$9.88	02/22/2017		M			3,950	(3)	02/19/2020	Common Stock	3,950	$0(2)	0	D
Employee Stock Option (Right to Buy)	$11.71	02/22/2017		M			4,873	(4)	02/19/2021	Common Stock	4,873	$0(2)	4,873	D
Employee Stock Option (Right to Buy)	$13.49	02/22/2017		M			3,599	(5)	02/19/2022	Common Stock	3,599	$0(2)	7,198	D
Employee Stock Option (Right to Buy)	$12.2	02/22/2017		M			6,498	(6)	02/19/2023	Common Stock	6,498	$0(2)	19,494	D

Explanation of Responses:

1. 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 Secretaries & Corporate Governance Professionals dated June 25, 2008. These shares were sold in multiple transactions at prices ranging from $21.625 to $21.75, 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.

2. This option was granted pursuant to the Entegris, Inc. 2010 Stock Plan, as amended, in consideration of service as an employee.

3. This option is fully vested.

4. This option vests in four equal annual installments. The first three installments became exercisable on February 19, 2015, February 19, 2016 and February 19, 2017, respectively. The last installment becomes exercisable on February 19, 2018.

5. This option vests in four equal annual installments. The first two installments became exercisable on February 19, 2016 and February 19, 2017, respectively. The remaining installments will become exercisable on February 19, 2018 and February 19, 2019, respectively.

6. This option vests in four equal annual installments. The first installment became exercisable on February 19, 2017. The remaining installments become exercisable on February 19, 2018, February 19, 2019 and February 19, 2020, respectively.

Remarks:

	/s/ Sue Lee, Attorney-In-Fact for Corey Rucci	02/24/2017
	** Signature of Reporting Person	Date
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).
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