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 *
JOHST DAVID P
   2. Issuer Name and Ticker or Trading Symbol
CHARLES RIVER LABORATORIES INTERNATIONAL INC [CRL] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Corporate Executive VP
(Last)
(First)
(Middle)
251 BALLARDVALE STREET		 3. Date of Earliest Transaction (Month/Day/Year)
02/25/2016
(Street)

WILMINGTON, MA 01887		 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 02/25/2016   M   34,075 A $ 24.8 189,023 D  
Common Stock 02/25/2016   S   30,020 D $ 73 159,003 D  
Common Stock 02/25/2016   S   100 D $ 73.02 158,903 D  
Common Stock 02/25/2016   S   100 D $ 73.05 158,803 D  
Common Stock 02/25/2016   S   100 D $ 73.06 158,703 D  
Common Stock 02/25/2016   S   100 D $ 73.07 158,603 D  
Common Stock 02/25/2016   S   200 D $ 73.08 158,403 D  
Common Stock 02/25/2016   S   100 D $ 73.1 158,303 D  
Common Stock 02/25/2016   S   100 D $ 73.11 158,203 D  
Common Stock 02/25/2016   S   790 D $ 73.12 157,413 D  
Common Stock 02/25/2016   S   100 D $ 73.14 157,313 D  
Common Stock 02/25/2016   S   100 D $ 73.15 157,213 D  
Common Stock 02/25/2016   S   200 D $ 73.16 157,013 D  
Common Stock 02/25/2016   S   200 D $ 73.18 156,813 D  
Common Stock 02/25/2016   S   400 D $ 73.2 156,413 D  
Common Stock 02/25/2016   S   100 D $ 73.21 156,313 D  
Common Stock 02/25/2016   S   400 D $ 73.23 155,913 D  
Common Stock 02/25/2016   S   100 D $ 73.2315 155,813 D  
Common Stock 02/25/2016   S   100 D $ 73.232 155,713 D  
Common Stock 02/25/2016   S   100 D $ 73.234 155,613 D  
Common Stock 02/25/2016   S   665 D $ 73.24 154,948 D  
Common Stock (1) 02/26/2016   A   1,366 A $ 0 156,314 D  
Common Stock (2) 02/26/2016   A   6,553 A $ 0 162,867 D  
Common Stock 02/27/2016   F   987 D $ 73.7 161,880 D  
Common Stock 02/28/2016   F   1,134 D $ 73.7 160,746 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Stock Options (Right to Buy) $ 24.8 02/25/2016   M     34,075 02/27/2010 02/27/2016 Common Stock 34,075 $ 0 0 D  
Stock Options (Right to Buy) $ 73.7 02/26/2016   A   32,158   02/26/2017(3) 02/26/2021 Common Stock 32,158 $ 0 32,158 D  

Reporting Owners

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

Signatures

 /s/David Johst   02/29/2016
**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) Consists of 1,366 unvested restricted stock units that vest equally over two (2) years beginning one (1) year from the date of issuance.
(2) Consists of 6,553 unvested restricted stock units that vest as follows: 1,638 shares vest one (1) year from the date of issuance, 1,638 shares vest two (2) years from the date of issuance, 1,638 shares vest three (3) years from the date of issuance, and 1,639 shares vest four (4) years from the date of issuance.
(3) Stock options vest as follows: 8,039 options vest one (1) year from the date of grant, 8,040 options vest two (2) years from the date of grant, 8,039 options vest three (3) years from the date of grant, and 8,040 options vest four (4) years from the date of grant.

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