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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Wenzell Jessica Wiley		 2. Issuer Name and Ticker or Trading Symbol

CIRCOR INTERNATIONAL INC [ CIR ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
SVP, General Counsel & CPO
(Last)          (First)          (Middle)

30 CORPORATE DRIVE, SUITE 200		 3. Date of Earliest Transaction (MM/DD/YYYY)

3/17/2023
(Street)

BURLINGTON, MA 01803		 4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
 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)
Rule 10b5-1(c) Transaction Indication
☐ Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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 3/17/2023  M  1122 A (1)2667 D  
Common Stock 3/17/2023  F  333 D (1)2334 D  

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)		2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date7. 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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Unit $0 3/17/2023 3/17/2023 M     1122  3/17/2023 (1)3/17/2031 Common Stock 1122 $0 1122 D  
Restricted Stock Unit $0 3/17/2023 3/17/2023 A   7740    3/17/2024 (2)3/17/2033 Common Stock 7740 $0 7740 D  
Restricted Stock Unit (MSP) $0 3/17/2023 3/17/2023 A   1317    3/17/2026 (3)3/17/2033 Common Stock 1317 $0 1317 D  
Explanation of Responses:
(1) The Restricted Stock Units (RSUs), the conversion of which are reported herein, were granted to the Reporting Person by the issuer as part of equity incentive grants made by the issuer on 3/17/2021 utilizing a fair market value (FMV) of a share of the issuers stock of $39.82. The RSU grant vests in equal portions over a three year period, and are received by the Reporting Person upon vesting, on a one-for-one basis. This report reflects the vesting of one-third portion of the original RSU grant and the acquisition by the Reporting Person of the underlying shares minus sufficient shares withheld to pay applicable income taxes.
(2) The grant of Restricted Stock Units (RSUs), reported herein, entitles the Reporting Person to receive shares of the issuer common stock in equal installments of one-third of the original RSU grant on each of the first three anniversaries of the grant date. The RSUs automatically convert into shares of common stock on a one-for-one basis at no conversion cost to the Reporting Person.
(3) This Restricted Stock Units (RSUs) grant is issued pursuant to a provision of the issuers Management Stock Purchase Plan (MSPP) whereby, pursuant to an advanced election by the executive, he or she receives RSUs in lieu of a specified percentage or dollar amount of his or her annual incentive cash bonus. The RSUs are issued in whole units at a 33 percent discount from fair market value of the issuers common stock on the award date 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.

Remarks:
Exhibit List: Exhibit 24 - Power of Attorney

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Wenzell Jessica Wiley
30 CORPORATE DRIVE
SUITE 200
BURLINGTON, MA 01803

SVP, General Counsel & CPO
Signatures
/s/Paul Caron, Attorney-in-Fact for Jessica W. Wenzell3/21/2023
**Signature of Reporting PersonDate
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).
**Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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