Ownership Submission
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 *
  Girshick Birgit
 2. Date of Event Requiring Statement (Month/Day/Year)
02/13/2018		 3. Issuer Name and Ticker or Trading Symbol
CHARLES RIVER LABORATORIES INTERNATIONAL INC [CRL]
(Last)
(First)
(Middle)
251 BALLARDVALE STREET		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Corporate Executive VP
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

WILMINGTON, MA 01887		 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 23,182 (1)
D
 

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
Stock Options (Right to Buy) 02/28/2015(2) 02/28/2021 Common Stock 913 $ 59.41 D  
Stock Options (Right to Buy) 02/27/2016(3) 02/27/2020 Common Stock 2,466 $ 76.67 D  
Stock Options (Right to Buy) 02/26/2017(4) 02/26/2021 Common Stock 5,025 $ 73.7 D  
Stock Options (Right to Buy) 02/24/2018(5) 02/24/2022 Common Stock 13,969 $ 88.05 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Girshick Birgit
251 BALLARDVALE STREET
WILMINGTON, MA 01887		       Corporate Executive VP  

Signatures

/s/ Birgit Girshick 02/20/2018
**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) Consists of: (a) 18,466 shares of common stock; (b) 233 shares of restricted stock which will vest on 2/28/2018; (c) 4,483 unvested restricted stock units (RSUs) which vest as follows: 724 on 2/24/2018, 342 on 2/26/2018, 279 on 2/27/2018, 725 on 2/24/2019, 341 on 2/26/2019, 280 on 2/27/2019, 725 on 2/24/2020, 342 on 2/26/2020, and 725 on 2/24/2021. Each RSU represents a contingent right to receive one share of common stock.
(2) Stock options will vest as follows: 913 on 2/28/2018.
(3) Stock Options will vest as follows: 1,233 on 2/27/2018 and 1,233 on 2/27/2019.
(4) Stock Options will vest as follows: 1,675 on 2/26/2018, 1,675 on 2/26/2019 and 1,675 on 2/26/2020.
(5) Stock Options will vest as follows: 3,492 on 2/24/2018, 3,492 on 2/24/2019, 3,492 on 2/24/2020 and 3,493 on 2/24/2021.

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