-------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION ----------------------------- FORM 4 WASHINGTON, D.C. 20549 OMB APPROVAL -------- ----------------------------- / / CHECK THIS BOX IF NO STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OMB NUMBER: 3235-0287 LONGER SUBJECT TO EXPIRES: December 31, 2001 SECTION 16. FORM 4 OR Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, ESTIMATED AVERAGE BURDEN FORM 5 OBLIGATIONS MAY Section 17(a) of the Public Utility Holding Company Act of 1935 or HOURS PER RESPONSE .... 0.5 CONTINUE. SEE Section 30(f) of the Investment Company Act of 1940 ----------------------------- INSTRUCTION 1(b). (Print or Type Responses) ------------------------------------------------------------------------------------------------------------------------------------ 1. Name and Address of Reporting Person* 2. Issuer Name AND Ticker or Trading Symbol 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner ACKERMAN THOMAS F Charles River Laboratories Int'l, Inc. ---- ---- --------------------------------------------------------------------------------------------- X Officer (give Other (Last) (First) (Middle) 3. IRS or Social Security 4. Statement for ---- title ---- (specify Number of Reporting Month/Year below) below) Person (Voluntary) Senior VP and CFO ----------------- ------------------ 251 Ballardvale Street 01/2002 -------------------------------------------- --------------------- 7. Individual or Joint/Group Filing (Street) 5. If Amendment, (Check Applicable Line) Date of Original _X_Form filed by One Reporting Person (Month/Year) ___Form filed by More than One Reporting Person Wilmington MA 01887 ------------------------------------------------------------------------------------------------------------------------------------ (City) (State) (Zip) TABLE I - NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED ------------------------------------------------------------------------------------------------------------------------------------ 1. Title of Security 2. Trans- 3. Trans- 4. Securities Acquired (A) 5. Amount of 6. Owner- 7. Nature (Instr. 3) action action or Disposed of (D) Securities ship of In- Date Code (Instr. 3, 4 and 5) Beneficially Form: direct (Instr. 8) Owned at Direct Bene- (Month/ End of (D) or ficial Day/ ------------------------------------------- Month Indirect Owner- Year) (A) or (I) ship Code V Amount (D) Price (Instr. 3 (Instr. 4) (Instr. 4) and 4) ------------------------------------------------------------------------------------------------------------------------------------ Common Stock 01/02/02 (1)S 2,000 D $32.6931 27,767 D ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. (Over) * If the form is filed by more than one reporting person, See Instruction 4(b)(v). SEC 1474 (3-00) POTENTIAL PERSONS WHO ARE TO RESPOND TO THE COLLECTION OF INFORMATION CONTAINED IN THIS FORM ARE NOT REQUIRED TO RESPOND UNLESS THE FORM DISPLAYS A CURRENTLY VALID OMB CONTROL NUMBER. Page 1 of 3 FORM 4 (CONTINUED) TABLE II - DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED (E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES) ------------------------------------------------------------------------------------------------------------------------ 1. Title of Derivative Security 2. Conver- 3. Trans- 4. Transac- 5. Number of Deriv- 6. Date Exer- (Instr. 3) sion or action tion Code ative Securities Ac- cisable and Ex- Exercise Date (Instr. 8) quired (A) or Dis- piration Date Price of (Month/ posed of (D) (Month/Day/ Deriv- Day/ (Instr. 3, 4, and 5) Year) ative Year) Security -------------------- Date Expira- -------------------------------------- Exer- tion cisable Date Code V (A) (D) ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ 7. Title and Amount of Under- 8. Price 9. Number 10. Owner- 11. Nature lying Securities of of Deriv- ship of In- (Instr. 3 and 4) Deriv- ative Form direct ative Securi- of De- Bene- Secur- ties rivative ficial ity Bene- Secu- Own- (Instr. ficially rity: ership 5) Owned Direct (Instr. 4) at End (D) or Amount or of Indi- Title Number of Month rect (I) Shares (Instr. 4) (Instr. 4) ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ Explanation of Responses: SEE ATTACHED PAGE(S) /s/ Thomas F. Ackerman 2-5-02 ----------------------------------- ----------- **Intentional misstatements or omissions of facts constitute **Signature of Reporting Person Date 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. ACKERMAN, THOMAS F. If space is insufficient, See Instruction 6 for procedure. 251 Ballardvale Street Wilmington, MA 01887 Potential persons who are to respond to the collection of information contained Charles River Laboratories Int'l, Inc. in this form are not required to respond unless the form displays a currently 01/2002 valid OMB Number. Page 2 of 3 FORM 4 (CONTINUED) EXPLANATION OF RESPONSES NAME: ACKERMAN, THOMAS F. STATEMENT FOR MONTH/YEAR: 01/2002 251 Ballardvale Street ISSUER NAME: Charles River Laboratories Int'l, Inc. Wilmington, MA 01887 ---------------------------------------------------------------------------------------------------------------------------------- Note: 1 This trade occurred pursuant to a rule 10b5-1 trading plan established December 2001 Page 3 of 3