UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

November 14, 2025

Date of Report (Date of earliest event reported)

CHARLES RIVER LABORATORIES INTERNATIONAL, INC.

(Exact Name of Registrant as Specified in Charter)


Delaware	001-15943	06-1397316
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

251 Ballardvale Street

Wilmington, Massachusetts 01887

(Address of Principal Executive Offices) (Zip Code)

781-222-6000

(Registrant’s Telephone Number, including Area Code)

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, $0.01 par value	CRL	New York Stock Exchange

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:


☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events

As previously disclosed, on May 16, 2023, Charles River Laboratories International, Inc., (Company) received an inquiry from the Enforcement Division of the U.S. Securities and Exchange Commission (SEC) requesting it to voluntarily provide information, subsequently augmented with a document subpoena and additional inquiries, primarily related to the sourcing of non-human primates and related disclosures. In addition, the Company’s Audit Committee retained counsel to conduct an independent investigation into certain issues raised in the investigation.

On November 14, 2025, the SEC’s Division of Enforcement (Division) notified the Company that it concluded its investigation and, based on the information available to the Division, it does not intend to recommend an enforcement action by the SEC against the Company. Similarly, the Company’s independent investigation into these matters has also concluded, with no material findings.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


			CHARLES RIVER LABORATORIES INTERNATIONAL, INC.

Date:	November 17, 2025	By:	/s/ Matthew L. Daniel
			Matthew L. Daniel, Corporate Senior Vice President,
			General Counsel, Corporate Secretary & Chief Compliance Officer

CHARLES RIVER LABORATORIES INTERNATIONAL, INC. 8-K