FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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 *   Mehrotra Sumit 2. Date of Event Requiring Statement (Month/Day/Year) 10/26/2016 3. Issuer Name and Ticker or Trading Symbol CIRCOR INTERNATIONAL INC [CIR] (Last) (First) (Middle) 30 CORPORATE DRIVE, SUITE 200 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) Group Pres, Adv Flow Solutions 5. If Amendment, Date Original Filed(Month/Day/Year) 11/02/2016 (Street) BURLINGTON, MA 01803 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 937 D Â

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit	  (1)	11/04/2023	Common Stock	156	$ 0	D	Â
Restricted Stock Unit	  (2)	03/03/2024	Common Stock	117	$ 0	D	Â
Restricted Stock Unit	  (3)	11/04/2024	Common Stock	626	$ 0	D	Â
Restricted Stock Unit	  (4)	02/23/2025	Common Stock	452	$ 0	D	Â
Restricted Stock Unit	  (5)	02/23/2026	Common Stock	2,187	$ 0	D	Â
Restricted Stock Unit (MSP)	02/23/2018(6)	02/23/2025	Common Stock	1,851	$ 0	D	Â
Restricted Stock Unit (MSP)	02/23/2019(6)	02/23/2026	Common Stock	42	$ 0	D	Â
Stock Options	  (7)	03/03/2021	Common Stock	984	$ 71.56	D	Â
Stock Options	  (8)	02/23/2022	Common Stock	1,959	$ 51.84	D	Â
Stock Options	  (9)	02/23/2023	Common Stock	4,200	$ 38.89	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Mehrotra Sumit 30 CORPORATE DRIVE, SUITE 200 BURLINGTON, MA 01803	Â	Â	  Group Pres, Adv Flow Solutions	Â

Signatures

/s/ Rajeev Bhalla, attorney in-fact		11/04/2016
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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)	The Restricted Stock Units (RSUs) granted herein are in connection with the Company's long-term incentive plan. The RSUs reported herein represent the original grant of 468 RSUs. The original award vests in 3 equal installments on December 4, 2014, November 4, 2015 and November 4, 2016 and convert into shares of common stock on a one-for-one basis unless the executive previously has selected a longer deferral period. Market price at time of grant was $75.04.
(2)	The Restricted Stock Units (RSUs) granted herein are in connection with the Company's long-term incentive plan. The RSUs reported herein represent the original grant of 351 RSUs. The original award vests in 3 equal installments on April 3, 2015, March 3, 2016 and March 3, 2017 and convert into shares of common stock on a one-for-one basis unless the executive previously has selected a longer deferral period. Market price at time of grant was $71.56.
(3)	The Restricted Stock Units (RSUs) granted herein are in connection with the Company's long-term incentive plan. The RSUs reported herein represent the original grant of 939 RSUs. The original award vests in 3 equal installments on December 4, 2015, November 4, 2016 and November 4, 2017 and convert into shares of common stock on a one-for-one basis unless the executive previously has selected a longer deferral period. Market price at time of grant was $74.65.
(4)	The Restricted Stock Units (RSUs) granted herein are in connection with the Company's long-term incentive plan. The RSUs reported herein represent the original grant of 678 RSUs. The original award vests in 3 equal installments on March 23, 2016, February 23, 2017 and February 23, 2018 and convert into shares of common stock on a one-for-one basis unless the executive previously has selected a longer deferral period. Market price at time of grant was $51.84.
(5)	The Restricted Stock Units (RSUs) granted herein are in connection with the Company's long-term incentive plan. The RSUs reported herein represent the original grant of 2,187 RSUs. The original award vests in 3 equal installments on March 23, 2017, February 23, 2018 and February 23, 2019 and convert into shares of common stock on a one-for-one basis unless the executive previously has selected a longer deferral period. Market price at time of grant was $38.89.
(6)	This Restricted Stock Units (RSUs) grant is issued pursuant to a provision of the issuer Management Stock Purchase Plan (MSPP) whereby certain executives may make an advance election to receive RSUs in lieu of a specified percentage or dollar amount of that executives annual incentive cash bonus under the bonus plan applicable to the executive. The RSUs are issued in whole units at a 33% discount from fair market value of the issuers common stock on the date the underlying bonus is determined and generally vest 3 years from the date of the grant, at which time the RSUs convert into shares of common stock on a one-for-one basis unless the executive previously elected a longer deferral period.
(7)	The option vests in equal annual installments over a 3-year period commencing March 3, 2015.
(8)	The option vests in equal annual installments over a 3-year period commencing February 23, 2016.
(9)	The option vests in equal annual installments over a 3-year period commencing February 23, 2017.

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