Groowe Groowe BETA / Newsroom
⏱ News is delayed by 15 minutes. Sign in for real-time access. Sign in

Form 8-K

sec.gov

8-K — CHARLES RIVER LABORATORIES INTERNATIONAL, INC.

Accession: 0001100682-26-000142

Filed: 2026-09-24

Period: 2026-09-24

CIK: 0001100682

SIC: 8731 (SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — crl-20260924.htm (Primary)

EX-99.1 (crlinvestorday2026pressr.htm)

GRAPHIC (crlinvestorday2026pressr001.jpg)

GRAPHIC (crlinvestorday2026pressr002.jpg)

GRAPHIC (crlinvestorday2026pressr003.jpg)

GRAPHIC (crlinvestorday2026pressr004.jpg)

GRAPHIC (crlinvestorday2026pressr005.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: crl-20260924.htm · Sequence: 1

crl-20260924

0001100682false0188700011006822026-09-242026-09-24

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

September 24, 2026

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 7.01. Regulation FD Disclosure

On September 24, 2026, in connection with its Investor Day, Charles River Laboratories International, Inc. (the “Company”) issued a press release that, among other things, discusses its business strategy, reaffirms its full-year 2026 guidance, and provides its long-term financial targets through 2030. A copy of the press release is furnished as Exhibit 99.1 hereto and incorporated by reference herein.

The Company will host its Investor Day beginning at 9:00 a.m. Eastern time today, which will be live webcast and archived on the Company’s Investor Relations website. To access the webcast and corresponding slide presentation, visit http://ir.criver.com. The slide presentation is not incorporated herein by reference.

The information contained in this item and item 9.01, including Exhibit 99.1, is furnished to the Commission, but shall not be deemed “filed” with the Commission for purposes of Section 18 of the Securities Exchange Act of 1934 (“Exchange Act”), or incorporated by reference in any filing under the Exchange Act or the Securities Act of 1933, except as expressly stated in any such filing. Information included on the Company’s website shall not be deemed to be incorporated into this Current Report on Form 8-K.

The statements in the Investor Day press release and related presentation materials which are not historical facts may be forward-looking statements. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date that they are made and which reflect management's current estimates, projections, expectations or beliefs and which involve risks and uncertainties that could cause actual results and outcomes to be materially different. Those risks and uncertainties include, but are not limited to, the ability to execute on, the results, and the impact of the Company’s Pathway to Purpose strategy and related initiatives. Furthermore, these and other risks relating to the Company are set forth in the documents filed by the Company with the Commission, including without limitation, the Risk Factors in the Company’s Annual Report on Form 10-K filed February 18, 2026, as well as the Company’s other filings with the Commission.

ITEM 9.01. Financial Statements and Exhibits

(d) Exhibits.

Exhibit No. Description

99.1

Press release dated September 24, 2026

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

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: September 24, 2026 By: /s/ Kerry Dailey

Kerry Dailey

Corporate Senior Vice President and Chief Legal Officer

EX-99.1

EX-99.1

Filename: crlinvestorday2026pressr.htm · Sequence: 2

crlinvestorday2026pressr

1 NEWS RELEASE CHARLES RIVER HIGHLIGHTS REFRESHED STRATEGIC VISION TO DRIVE PROFITABLE GROWTH AND LONG-TERM VALUE CREATION AT 2026 INVESTOR DAY – Outlines Pathway to Purpose Strategy to Modernize the Company, Strengthen Its Scientific Portfolio, and Enhance the Client Experience – – Issues Long-Term Financial Targets through 2030 – – Reaffirms 2026 Financial Guidance with Revenue and Non-GAAP Earnings per Share Expected at the Upper Ends of Prior Ranges – WILMINGTON, MA, September 24, 2026 – Charles River Laboratories International, Inc. (NYSE: CRL) will host its 2026 Investor Day today, September 24, 2026, starting at 9:00 a.m. ET. Birgit Girshick, Chief Executive Officer, along with members of the senior management team, will highlight a refreshed strategic vision, Pathway to Purpose, to modernize the Company, strengthen its scientific portfolio, and drive profitable growth to enhance long-term shareholder value creation. Ms. Girshick said, “Our Pathway to Purpose strategy is designed to strengthen Charles River's position as a leading scientific partner to the biopharmaceutical industry. As innovation across drug development accelerates, we believe there are significant opportunities to leverage our scientific expertise, operational excellence, and client-centric approach to drive scalable, profitable growth and to lead the future of drug development.” Pathway to Purpose is centered on three strategic initiatives: • Modernizing the Company to Drive Greater Productivity and Efficiency: Through its recently introduced Create the Future™ program, Charles River expects to generate over $300 million in cumulative savings from 2027 through 2030 by simplifying processes and increasing automation and digital enablement. The Company will expand its use of AI-assisted digital tools to improve operating efficiency, reduce drug development timelines, and enhance client satisfaction.

2 • Strengthening a World-Class Scientific Portfolio: Charles River will expand its innovative scientific capabilities through organic and inorganic investments. Priority investment areas include bioanalysis, in vitro testing, and related scientific solutions. Charles River expects its bioanalysis revenue to grow organically at a high-single-digit CAGR to approximately $450 million in 2030. • Delivering a Customized, Client-Centric Approach: The Company’s client-centric approach will further enable it to capitalize on improving biopharmaceutical R&D demand, growth in biologics and complex modalities, the potential benefit of AI-assisted drug discovery, and the increasing complexity of scientific research. Charles River is expanding its Apollo™ cloud-based platform to create a more seamless client experience. Apollo™ now serves more than 18,000 client users through its scientific decision-support and e-commerce capabilities and was recently expanded to support Manufacturing Solutions’ clients. Through these initiatives and disciplined capital deployment, the Company intends to reinforce its leadership position in early-stage drug development with comprehensive regulated testing capabilities across the R&D continuum. Financial Targets In conjunction with Investor Day, the Company is reaffirming its 2026 financial guidance, which was last updated on August 5, 2026. The Company now expects revenue and non-GAAP earnings per share to be at the upper ends of their respective guidance ranges, primarily reflecting continued favorable demand from biopharmaceutical clients. The Company is also introducing the following long-term financial targets through 2030: 2026 GUIDANCE(1) 2030 TARGET(2) Revenue growth, organic (3) Upper end of 0% – 1% growth 5% – 7% 2027-2030 CAGR Non-GAAP operating margin (4) 21.0% – 21.3% ~24% Non-GAAP EPS estimate (4) Upper end of $11.15 – $11.45 Low-double-digit 2027-2030 CAGR

3 Footnotes: (1) The reconciliations of GAAP to non-GAAP financial information for 2026 guidance, which were last updated on August 5, 2026, can be found on the Investor Relations section of the Company’s website at ir.criver.com. (2) Financial targets through 2030 do not include the impact of future acquisitions or divestitures. The financial targets are not projections and do not constitute financial guidance; they are subject to significant uncertainties and contingencies and are based upon management's current assumptions, which are subject to change. (3) Organic growth (non-GAAP) is defined as reported revenue growth adjusted for completed acquisitions, divestitures, and foreign currency translation. (4) Non-GAAP operating margin and earnings per share primarily excludes: (i) acquisition-related amortization; (ii) costs related to the evaluation and integration of acquisitions and divestitures; (iii) costs related to the Create the Future™ transformation program including site consolidation, severance, impairment, third-party consulting and professional services; and other costs related to restructuring actions and efficiency initiatives; and (iv) certain venture capital and other strategic investment losses/(gains), net, as well as certain other costs. Investor Day Webcast Details A link to the live webcast and presentation materials for Charles River’s 2026 Investor Day will be available at ir.criver.com shortly before the event begins. A replay of the webcast will be available on the same website following the conclusion of the event. Use of Non-GAAP Financial Measures This press release contains forward-looking, non-GAAP financial measures: organic revenue growth, non-GAAP operating margin, and non-GAAP earnings per share. We do not reconcile forward-looking non-GAAP measures to the comparable GAAP measures because of the inherent difficulty in predicting and estimating the future impact and timing of foreign currency translation, acquisitions, divestitures, and any other potential adjustments which would be reflected in any forecasted GAAP measure. There are limitations in using non-GAAP financial measures, as they are not presented in accordance with generally accepted accounting principles, and may be different than non-GAAP financial measures used by other companies. In particular, we believe that the inclusion of supplementary non-GAAP financial measures in this press release helps investors to gain a meaningful understanding of our core operating results and future prospects without the effect of these often-one-time charges and is consistent with how management measures and forecasts the Company's performance, especially when comparing such results to prior periods or forecasts. We believe that the financial impact of our acquisitions and divestitures (and in certain cases, the evaluation of such acquisitions and divestitures, whether ultimately consummated) is often large relative to our overall financial performance, which can adversely affect the comparability of our results on a period-to-period basis. In addition, certain activities and their underlying associated costs, such as business acquisitions, generally occur periodically but on an unpredictable basis. Non-GAAP results also allow investors to compare the Company’s operations against the financial results of other companies in the industry who similarly provide non-GAAP results. The non-GAAP financial measures included in this press release are not meant to be considered

4 superior to or a substitute for results of operations presented in accordance with GAAP. The Company intends to continue to assess the potential value of reporting non-GAAP results consistent with applicable rules and regulations. Caution Concerning Forward-Looking Statements This press release includes forward-looking statements within the meaning of the federal securities laws. Forward-looking statements may be identified by the use of words such as “anticipate,” “believe,” “expect,” “intend,” “will,” “would,” “may,” “estimate,” “plan,” “outlook,” and “project,” and other similar expressions that predict or indicate future events or trends or that are not statements of historical matters. These statements also include statements regarding: the Company’s plans or prospects, expectations and long-term goals associated with our business; the Company's expectations concerning future financial and operating performance, including the Company's commitment to, and ability to create long-term value for shareholders and to successfully execute on the strategies described herein. Forward-looking statements are based on Charles River’s current expectations and beliefs, and involve a number of risks and uncertainties that are difficult to predict and that could cause actual results to differ materially from those stated or implied by the forward-looking statements. Those risks and uncertainties include, but are not limited to, the ability to execute on, the results, and the impact of the Company’s Pathway to Purpose strategy and related initiatives. Furthermore, these and other risks relating to the Company are set forth in the documents filed by Charles River with the Securities and Exchange Commission, including without limitation, the Risk Factors in the Company’s Annual Report on Form 10-K filed February 18, 2026, as well as the Company’s other filings with the Securities and Exchange Commission. Because forward- looking statements involve risks and uncertainties, actual results and events may differ materially from results and events currently expected by Charles River, and Charles River assumes no obligation and expressly disclaims any duty to update information contained in this press release except as required by law. About Charles River Charles River provides essential products and services to help pharmaceutical and biotechnology companies, government agencies, and leading academic institutions around the globe accelerate their research and drug development efforts. Our dedicated employees are focused on providing clients with exactly what they need to improve and expedite the discovery, early-stage development, and safe manufacture of new therapies for the patients who need them. To learn more about our unique portfolio and breadth of services, visit www.criver.com. # # #

5 Investor Contact: Media Contact: Todd Spencer Amy Cianciaruso Corporate Vice President, Corporate Senior Vice President, Investor Relations Chief Communications Officer 781.222.6455 781.222.6168 todd.spencer@crl.com amy.cianciaruso@crl.com

GRAPHIC

GRAPHIC

Filename: crlinvestorday2026pressr001.jpg · Sequence: 6

Binary file (179359 bytes)

Download crlinvestorday2026pressr001.jpg

GRAPHIC

GRAPHIC

Filename: crlinvestorday2026pressr002.jpg · Sequence: 7

Binary file (181490 bytes)

Download crlinvestorday2026pressr002.jpg

GRAPHIC

GRAPHIC

Filename: crlinvestorday2026pressr003.jpg · Sequence: 8

Binary file (262135 bytes)

Download crlinvestorday2026pressr003.jpg

GRAPHIC

GRAPHIC

Filename: crlinvestorday2026pressr004.jpg · Sequence: 9

Binary file (230151 bytes)

Download crlinvestorday2026pressr004.jpg

GRAPHIC

GRAPHIC

Filename: crlinvestorday2026pressr005.jpg · Sequence: 10

Binary file (44075 bytes)

Download crlinvestorday2026pressr005.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 12

v3.26.3

Cover

Sep. 24, 2026

Cover [Abstract]

Document Type

8-K

Document Period End Date

Sep. 24, 2026

Registrant Name

CHARLES RIVER LABORATORIES INTERNATIONAL, INC.

Entity Incorporation, State or Country Code

DE

Entity File Number

001-15943

Entity Tax Identification Number

06-1397316

Entity Address, Address Line One

251 Ballardvale Street

Entity Address, City or Town

Wilmington

Entity Address, State or Province

MA

Entity Address, Postal Zip Code

01887

Title of 12(b) Security

Common stock, $0.01 par value

Trading Symbol

CRL

Security Exchange Name

NYSE

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity Emerging Growth Company

false

Central Index Key

0001100682

Amendment Flag

false

City Area Code

781

Local Phone Number

222-6000

X

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration