Charles River Laboratories Announces Fourth-Quarter and Full-Year 2025 Results and Provides 2026 Guidance

– Fourth-Quarter Revenue of $994.2 Million and Full-Year Revenue of $4.02 Billion –

– Fourth-Quarter GAAP Loss per Share of $(5.62) and Non-GAAP Earnings per Share of $2.39 –

– Full-Year GAAP Loss per Share of $(2.91) and Non-GAAP Earnings per Share of $10.28 –

– Provides 2026 Guidance –

WILMINGTON, Mass.–(BUSINESS WIRE)–Charles River Laboratories International, Inc. (NYSE: CRL) today reported its results for the fourth quarter and full-year 2025 and provided guidance for 2026. For the quarter, revenue was $994.2 million, a decrease of 0.8% from $1,002.5 million in the fourth quarter of 2024.

The impact of foreign currency translation increased reported revenue by 1.9%, and the divestiture of a small Safety Assessment site in 2024 reduced reported revenue by 0.1%. Excluding the effect of these items, revenue declined 2.6% on an organic basis, driven primarily by the Discovery and Safety Assessment (DSA) and Manufacturing Solutions (Manufacturing) segments.

In the fourth quarter of 2025, the GAAP operating margin was (28.5)%, compared to (16.7)% in the fourth quarter of 2024. The GAAP net loss available to common shareholders for the fourth quarter of 2025 was $(276.6) million, or $(5.62) per diluted share, compared to a net loss of $(215.7) million, or $(4.22) per diluted share for the same period in 2024. GAAP net income and earnings per share included non-cash intangible asset impairments of $211.0 million, or $3.22 per share, for the Biologics Solutions reporting unit (Manufacturing segment) and the Cell Solutions business (RMS segment) and a non-cash goodwill impairment totaling $165.0 million, or $3.35 per share, in the Biologics Solutions reporting unit in the fourth quarter of 2025, compared to a non-cash goodwill impairment of $215.0 million, or $4.20 per share, in the Biologics Solutions reporting unit in the fourth quarter of 2024. In the fourth quarter of 2025, the Company reported a gain of $0.10 per share on certain venture capital and other strategic investments, compared to a loss of $0.32 per share in the fourth quarter of 2024.

On a non-GAAP basis, the fourth-quarter operating margin decreased to 18.1% from 19.9% in the fourth quarter of 2024, primarily as a result of lower revenue, higher study-related direct costs in the DSA segment, and an unfavorable revenue mix in the RMS segment. Non-GAAP net income was $118.8 million for the fourth quarter of 2025, a decrease of 13.0% from $136.6 million for the same period in 2024. Fourth-quarter diluted earnings per share on a non-GAAP basis were $2.39, a decrease of 10.2% from $2.66 per share for the fourth quarter of 2024. The non-GAAP net income and earnings per share decreases were driven primarily by lower revenue and operating margin, as well as a higher tax rate.

James C. Foster, Chair, President and Chief Executive Officer, said, “We were pleased with our 2025 financial results, including substantial improvement in DSA net bookings in the fourth quarter that demonstrates the stabilization of the biopharmaceutical demand environment. We are making significant progress on several strategic initiatives that will enable the Company to better capitalize on future growth opportunities, and we remain intently focused on scientific innovation that will reinforce our position as the leader in preclinical drug development.”

“As we look ahead, we are cautiously optimistic that positive demand trends will continue in 2026. We remain committed to driving our strategy forward, including through selective and strategic acquisitions that align with our core competencies; taking decisive actions to drive efficiency and process improvements that will deliver continued benefits; and by strengthening and refining our organization to enhance our speed and responsiveness. This approach ensures Charles River remains the partner of choice for our clients as the biopharmaceutical demand environment continues to improve,” Mr. Foster concluded.

Fourth-Quarter Segment Results

Research Models and Services (RMS)

Revenue for the RMS segment was $206.3 million in the fourth quarter of 2025, an increase of 1.0% from $204.3 million in the fourth quarter of 2024. The impact of foreign currency translation increased revenue by 1.9%. Organic revenue decreased by 0.9%, due primarily to lower revenue for large research models and for small research models in North America. The decline was partially offset by higher revenue for research model services, including in the Insourcing Solutions business, and small research models in China and Europe.

In the fourth quarter of 2025, the RMS segment’s GAAP operating margin decreased to (33.6)% from 6.7% in the fourth quarter of 2024 primarily due to the intangible asset impairment related to the Cell Solutions business. On a non-GAAP basis, the operating margin decreased to 21.9% from 22.8%. The non-GAAP operating margin decrease was primarily driven by the unfavorable revenue mix related to large research models and lower revenue for small research models in North America.

Discovery and Safety Assessment (DSA)

Revenue for the DSA segment was $591.6 million in the fourth quarter of 2025, a decrease of 2.0% from $603.3 million in the fourth quarter of 2024. The impact of foreign currency translation increased DSA revenue by 1.5% and the divestiture of a small DSA site reduced reported revenue by 0.2%. Organic revenue decreased by 3.3%, driven primarily by lower sales volume for discovery services, and also for regulated safety assessment services.

In the fourth quarter of 2025, the DSA segment’s GAAP operating margin increased to 14.3% from 10.4% in the fourth quarter of 2024. The increase was primarily driven by a favorable comparison to the prior year’s large model (NHP) inventory write down. On a non-GAAP basis, the operating margin decreased to 20.1% from 24.7% in the fourth quarter of 2024. The non-GAAP operating margin decrease was primarily driven by lower revenue, as well as higher study-related direct costs related to large-model sourcing and staffing.

Manufacturing Solutions (Manufacturing)

Revenue for the Manufacturing segment was $196.4 million in the fourth quarter of 2025, an increase of 0.7% from $194.9 million in the fourth quarter of 2024. The impact of foreign currency translation increased Manufacturing revenue by 2.8%. Organic revenue decreased 2.1%, driven by lower revenue in the CDMO business, partially offset by higher revenue in the Microbial Solutions and Biologics Testing businesses.

The Manufacturing segment’s GAAP operating margin was (115.9)%, compared to (93.6)% in the fourth quarter of 2024. The decrease was primarily the result of larger impairments in the fourth quarter of 2025 related to the Biologics Solutions reporting unit, which includes both the CDMO and Biologics Testing businesses. On a non-GAAP basis, the operating margin increased to 32.1% from 28.7% in the fourth quarter of 2024, driven primarily by the benefit of cost savings resulting from the Company’s restructuring initiatives.

Full-Year Results

For 2025, revenue decreased by 0.9% to $4.02 billion from $4.05 billion in 2024. Revenue declined by 1.6% on an organic basis.

The GAAP operating margin decreased to 0.6% from 5.6% in 2024, and on a non-GAAP basis, the operating margin decreased to 19.8% from 19.9%.

On a GAAP basis, the net loss available to common shareholders was $(144.3) million in 2025, a decrease from net income available to common shareholders of $10.3 million in 2024. The diluted loss per share on a GAAP basis in 2025 was $(2.91), a decrease from diluted earnings per share of $0.20 in 2024.

On a non-GAAP basis, net income was $512.3 million in 2025, a decrease of 3.9% from $532.9 million in 2024. Diluted earnings per share on a non-GAAP basis in 2025 were $10.28, a decrease of 0.4% from $10.32 in 2024.

Research Models and Services (RMS)

For 2025, RMS revenue was $846.1 million, an increase of 2.0% from $829.4 million in 2024. Revenue increased by 1.2% on an organic basis.

On a GAAP basis, the RMS segment operating margin decreased to 5.3% in 2025 from 13.8% in 2024. On a non-GAAP basis, the operating margin increased to 24.8% in 2025 from 23.7% in 2024.

Discovery and Safety Assessment (DSA)

For 2025, DSA revenue was $2.40 billion, a decrease of 2.0% from $2.45 billion in 2024. Revenue declined by 2.6% on an organic basis.

On a GAAP basis, the DSA segment operating margin decreased to 17.7% in 2025 from 18.1% in 2024. On a non-GAAP basis, the operating margin decreased to 24.2% in 2025 from 25.7% in 2024.

Manufacturing Solutions (Manufacturing)

For 2025, Manufacturing revenue was $766.4 million, a decrease of 0.4% from $769.3 million in 2024. Revenue declined by 1.6% on an organic basis.

On a GAAP basis, the Manufacturing segment operating margin decreased to (24.0)% in 2025 from (9.3)% in 2024. On a non-GAAP basis, the operating margin increased to 28.8% in 2025 from 27.4% in 2024.

2026 Guidance

The Company is providing financial guidance for 2026, which does not include the impact of planned divestitures that represent approximately 7% of annual revenue for 2025 and estimated 2026. On an organic basis, this outlook assumes that the robust DSA booking trends in the fourth quarter of 2025, combined with an expectation that favorable booking activity will continue in 2026, will result in a return to organic revenue growth in the second half of 2026 on both a consolidated basis and for the DSA segment. In addition, the Company also expects revenue will increase organically in the Manufacturing segment, as a result of the anniversary of the loss of a large, commercial CDMO client in 2025 and a continuation of solid demand trends in the Microbial Solutions business. The revenue increase is expected to be partially offset by lower revenue in the RMS segment due to lower large model revenue, as well as lower revenue in its Insourcing Solutions business, principally related to its CRADL™ operations.

Non-GAAP earnings per share are expected to increase by approximately 4% to 9% in 2026, as a result of the benefit from incremental cost savings related to restructuring and efficiency initiatives, as well as the earnings accretion from the completed acquisition of the assets of K.F. (Cambodia) Ltd. A lower tax rate will also contribute to non-GAAP earnings per share growth in 2026.

The Company’s 2026 guidance for revenue and earnings per share is as follows:

Webcast

Charles River has scheduled a live webcast on Wednesday, February 18^th, at 8:30 a.m. ET to discuss matters relating to this press release. To participate, please go to ir.criver.com and select the webcast link. You can also find the associated slide presentation and reconciliations of GAAP financial measures to non-GAAP financial measures on the website.

Non-GAAP Reconciliations

The Company reports non-GAAP results in this press release, which exclude often-one-time charges and other items that are outside of normal operations. A reconciliation of GAAP to non-GAAP results is provided in the schedules at the end of this press release.

Use of Non-GAAP Financial Measures

This press release contains non-GAAP financial measures, such as non-GAAP earnings per share, non-GAAP operating income, non-GAAP operating margin, and non-GAAP net income. Non-GAAP financial measures exclude, but are not limited to, the amortization of intangible assets and the purchase accounting step-up adjustment on inventory and certain long term biological assets, and other charges and adjustments related to our acquisitions and divestitures, including expenses associated with evaluating and integrating acquisitions and divestitures, including advisory fees, certain transition costs, and certain other transaction-related costs, as well as fair value adjustments associated with contingent consideration; charges, gains, and losses attributable to businesses or properties we plan to close, consolidate, or divest; severance and other costs associated with our restructuring initiatives; the write-off of deferred financing costs and fees related to debt financing; investment gains or losses associated with our venture capital and certain other strategic equity investments; certain legal costs in our DSA segment related to now concluded U.S. government investigations into the NHP supply chain and advisory costs related to entering into a Cooperation Agreement with a shareholder; tax effect of all of the aforementioned matters; and adjustments related to the derecognition of certain deferred tax assets due to the CDMO Gene Therapy intangible asset impairment charge, the recognition of deferred tax assets expected to be utilized as a result of changes to the Company’s international financing structure, and the revaluation of deferred tax liabilities as a result of foreign tax legislation. This press release also refers to our revenue on both a GAAP and non-GAAP basis: on a non-GAAP basis, we define “organic revenue growth” as reported revenue growth adjusted for foreign currency translation, acquisitions, and divestitures. We exclude these items from the non-GAAP financial measures because they are outside our normal operations. 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 or not 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. We calculate non-GAAP integration costs to include third-party integration costs incurred post-acquisition. Presenting revenue on an organic basis allows investors to measure our revenue growth exclusive of acquisitions, divestitures, and foreign currency exchange fluctuations more clearly. 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 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. Reconciliations of the non-GAAP financial measures used in this press release to the most directly comparable GAAP financial measures are set forth in this press release, and can also be found on the Company’s website at ir.criver.com.

Caution Concerning Forward-Looking Statements

This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. 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 projected future financial performance of Charles River and our specific businesses, including as delineated in our forward-looking guidance, and particularly our expectations with respect to revenue, the impact of foreign exchange, interest rates, and enhanced efficiency initiatives; our expectations with respect to the impact of NHP supply constraints and our ability to gain market share; our ability to create long-term value for our shareholders and successfully execute on our strategic initiatives, including the impact and results of the such initiatives; the Company’s plans or prospects, expectations and long-term goals associated with our business; earnings per share; operating margin; client demand, particularly the future demand for drug discovery and development products and services, including our expectations for future revenue trends; our expectations with respect to booking trends and the impacts thereof; our expectations with respect to pricing of our products and services; our expectations with respect to future tax rates and the impact of such tax rates on our business; our expectations with respect to the impact of acquisitions, including the acquisition of the assets of K.F. (Cambodia) Ltd. and the planned acquisition of PathoQuest SAS, and divestitures on the Company, our service offerings, client perception, strategic relationships, revenue, revenue growth rates, revenue growth drivers, and earnings; the development and performance of our services and products, including our investments in our portfolio; market and industry conditions including the outsourcing of services and identification of spending trends by our clients and funding available to them; ability to gain market share and capitalize on business and growth opportunities; the impact of our restructuring initiatives, including annualized savings; and the impact of our stock repurchase authorization. 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 impact of NHP supply constraints; changes and uncertainties in the global economy and financial markets, including disruptions in the global economy caused by geopolitical conflicts; the ability to successfully integrate businesses we acquire, and risks and uncertainties associated with businesses that we acquire; the ability to successfully complete the planned acquisition of PathoQuest SAS; the timing and magnitude of our share repurchases; negative trends in research and development spending, negative trends in the level of outsourced services, or other cost reduction actions by our clients; the ability to convert backlog to revenue; demand and booking trends; special interest groups; contaminations; industry trends; new displacement technologies; USDA and FDA regulations; changes in law; continued availability of products and supplies; loss of key personnel; interest rate and foreign currency exchange rate fluctuations; changes in tax regulation and laws; changes in generally accepted accounting principles; and any changes in business, political, or economic conditions due to the threat of future terrorist activity in the U.S. and other parts of the world, and related U.S. military action overseas. A further description of these risks, uncertainties, and other matters can be found in the Risk Factors detailed in Charles River’s Annual Report on Form 10-K as filed on February 18, 2026, as well as other filings we make 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.

Contacts

Investor Contact:

Todd Spencer

Corporate Vice President,

Investor Relations

781.222.6455

[email protected]

Media Contact:

Amy Cianciaruso

Corporate Senior Vice President,

Chief Communications Officer

781.222.6168

[email protected]

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