Charles River reported third quarter 2025 revenue of $1 billion (down 1.6% organically), which modestly exceeded the August outlook and allowed the company to narrow guidance with EPS now at the upper end at $10.10-$10.30. Management detailed strategic review outcomes including planned divestitures of ~7% of revenue, a new $1 billion repurchase authorization, and ~$70 million of incremental cost savings. Demand signals strengthened with rising proposals, declining cancellations, and improving monthly book-to-bill supported by a recovering biotech funding environment, though management remained cautious about projecting 2026 DSA growth.
Good morning, and welcome to Charles River Laboratories third quarter 2025 earnings conference call and webcast. This morning, I am joined by Jim Foster, Chair, President, and Chief Executive Officer, and Mike Knell, Senior Vice President, Interim Chief Financial Officer, and Chief Accounting Officer. They will comment on our third quarter results for 2025. Following the presentation, they will respond to questions. There is a slide presentation associated with today's remarks, which will be posted on the Investor Relations section of our website at ir.criver.com. A webcast replay of this call will be available beginning approximately two hours after the call today and can also be accessed on our Investor Relations website. The replay will be available through next quarter's conference call. I'd like to remind you of our safe harbor.
All remarks that we make about future expectations, plans, and prospects for the company constitute forward-looking statements under the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated. During the call, we will primarily discuss non-GAAP financial measures, which we believe help investors gain a meaningful understanding of our core operating results and guidance. The non-GAAP financial measures are not meant to be considered superior to or a substitute for the results of operations prepared in accordance with GAAP. In accordance with Regulation G, you can find the comparable GAAP measures and reconciliations on the Investor Relations section of our website. I will now turn the call over to Jim Foster.
Thank you, Todd, and good morning. Before I comment on our third quarter results, I'd like to discuss our strategic review. As you know from today's press release, we provided an update on our comprehensive strategic review. The board strongly supports the company's strategic direction and believes we should continue to focus on strengthening our leading scientific portfolio within our core markets, divesting underperforming or non-core assets, maximizing our financial performance, and maintaining a disciplined approach to capital deployment. I would like to thank our board for the progress that it has made on such a thorough and collaborative review process, which has and will continue to evaluate a wide range of value creation options to help ensure the best strategic path forward for the company. As we move forward to support our strategy, we will focus on several strategic actions to help drive long-term shareholder value creation.
The first action is continuing to strengthen our portfolio by investing in core growth initiatives, including through M&A, partnerships, and internal development efforts. We have built a scientifically differentiated portfolio, which enables us to take advantage of the unique opportunities that are present across the evolving biopharmaceutical landscape. Our focus on science and innovative solutions designed to enhance the efficiency and speed to market of our clients' lifesaving therapeutic programs has positioned us extremely well to continue to adapt and lead the industry through advances in drug development, such as NAMs or new approach methodologies. We have identified areas of future growth, all of which are well within our core competencies, including opportunities across our three business segments. Specifically, we will evaluate opportunities to enhance our scientific capabilities in the areas of bioanalysis, in vitro services, and NAMs, as well as to continue to evaluate our geographic presence.
The second action, to refine our portfolio, addresses our ongoing efforts to streamline operations and maximize our financial performance. As part of our portfolio review over the past several months, we have evaluated the strategic fit and fundamental performance of our global businesses and infrastructure, and as appropriate, we'll take actions to drive long-term value creation. These actions are expected to result in the sale of certain underperforming or non-core businesses, which will enable us to focus on more profitable growth opportunities. In aggregate, these businesses represent approximately 7% of our estimated 2025 revenue. Once completed, the proposed divestitures are expected to result in non-GAAP earnings accretion of at least $0.30 per share on an annualized basis. This does not include any benefit from the reinvestment of the transaction proceeds or impact to net interest expense. We will strive to complete any potential divestitures by the middle of 2026.
We will also continue to focus on new initiatives to drive greater efficiency in our business and maximize our financial performance. As you know, we have taken extensive action with a goal to protect our operating margin and reinvigorate earnings growth. Over the past few years, we have already implemented restructuring initiatives that are expected to result in approximately $225 million in cumulative annualized cost savings in 2026, which represents a reduction of more than 5% of our cost structure. In addition to these actions, we are also implementing initiatives designed to drive process improvement and greater operating efficiencies, including through procurement synergies and implementation of a global business services model. These additional initiatives are expected to generate incremental net cost savings of approximately $70 million annually, which will be fully realized in 2026.
We also expect to continue to transform our relationships with our clients through best-in-class technology platforms and access to critical data, becoming an even more efficient partner for them. Finally, we remain committed to deploying capital in a disciplined and value-enhancing manner. We will continue to regularly review the optimal balance between strategic acquisitions, stock repurchases, debt repayment, and other uses of capital. As part of our capital allocation strategy, the Board of Directors approved a new $1 billion stock repurchase authorization. This replaces the previous stock repurchase authorization, for which we had repurchased $450.7 million in common stock since August 2024. We will regularly and carefully evaluate the prudent level of stock repurchases going forward and will take into consideration valuation, future growth prospects, expected returns, and earnings accretion from repurchases, as well as our leverage and other uses of cash.
With these actions clearly outlined, we are intently focused on executing this plan to enhance the company's long-term value by building upon the core strengths of our unique portfolio, advancing scientific innovation, and driving greater efficiency in both our operations and our clients' R&D and manufacturing efforts. Moving on to our quarterly results and demand trends, we are continuing to see clear signs that client demand has stabilized. Many of our global biopharmaceutical clients appear to have progressed through their restructuring efforts, and the biotech funding environment showed increasing signs of improvement throughout the third quarter. These are positive signals that the industry may be on a path towards recovery, and the improvement we saw in DSA proposal activity during the third quarter strongly supports this view. At the same time, there is still some uncertainty in our end markets.
Therefore, we will continue to remain cautious at this time and focused on strong execution to drive further wallet share gains with our clients. The business trends in the third quarter were consistent with those that we described in August. With RMS performance benefiting from the favorable timing of NHP shipments in the quarter, DSA revenue declining sequentially as the first quarter booking strengths that contributed to meaningful outperformance in the first half of the year returned to recent historical levels, and manufacturing revenue declining primarily due to the completion of work for a commercial CDMO client. Collectively, trends were slightly better than we had expected, which led to modest outperformance in the third quarter. Before I provide more details on these trends, let me provide highlights of our third quarter performance and updated outlook for the year.
We reported revenue of $1 billion in the third quarter of 2025, a 0.5% decrease year-over-year. On an organic basis, revenue declined 1.6%, as declines in both the DSA and manufacturing segments were partially offset by an increase in the RMS segment. Third quarter revenue slightly outperformed the outlook provided in August. By client segment, revenue for small and mid-sized biotech clients declined, reflecting tighter budgets likely driven by the softer biotech funding environment as we exited 2024 and in the first half of this year. Revenue for global biopharmaceutical clients remained below last year's level, but that was primarily due to the loss of a large commercial client in the CDMO business, whose work at our Memphis site wound down in the second quarter.
Revenue increased for global biopharmaceutical clients in both the RMS and DSA segments, demonstrating that preclinical demand from this client base had bottomed and is beginning to improve, consistent with the upward trajectory in the DSA booking activity at the beginning of this year. Revenue for global academic and government clients increased slightly in the quarter. We have not experienced any meaningful impact from NIH budget uncertainty or the government shutdown to date. The operating margin was 19.7% in the quarter, a decrease of 20 basis points year-over-year, also driven by the DSA and manufacturing segment. This anticipated margin decline primarily reflected lower sales volume in the DSA segment and lower commercial CDMO revenue in the manufacturing segment. For the full year, we continue to expect the operating margin will be flat to a 30 basis point decline, unchanged from our prior outlook.
Earnings per share were $2.43 in the third quarter, a 6.2% decline from the third quarter of last year, but modestly above our prior outlook. The tax rate was the most significant year-over-year headwind, as we had anticipated, totaling $0.24 per share in the quarter due to the enactment of new tax legislation. Mike Knell will provide additional details on the non-operating item shortly. With one quarter remaining, we are narrowing our revenue and non-GAAP earnings per share guidance ranges for the year. We now expect 2025 organic revenue will be in a range of 1.5%-2.5% decrease or the middle of our prior range. We also expect our non-GAAP earnings per share will be at the top end of our prior range at $10.10-$10.30, reflecting a $0.10 increase from the midpoint of our prior guidance range.
I will now provide details on the third quarter segment performance, beginning with the DSA segment. Revenue for the DSA segment was $600.7 million in the third quarter, a 3.1% year-over-year decrease on an organic basis, driven by lower revenue for both discovery and safety assessment services. As was the case during the first half of the year, lower sales volume was partially offset by a modest benefit from favorable study mix. We can also report that spot pricing remained stable overall. Although the DSA backlog declined to $1.80 billion at the end of the third quarter from $1.93 billion at the end of June, DSA demand KPIs were stable in the third quarter.
The DSA demand environment remained quite stable from the trends that I described one quarter ago, including a third quarter net book-to-bill ratio of 0.82 times, which was identical to the level reported in the second quarter. The cancellation rate improved in the third quarter and continued to normalize toward historical levels. Net bookings decreased slightly on a sequential basis to $494 million in the third quarter, reflecting lighter booking activity for small and mid-sized biotech clients during the summer months. However, booking activity from biotech clients has improved since the summer, leaving us cautiously optimistic that biotech demand will accelerate over the coming quarters, assuming clients continue to have access to more robust funding for their IND-enabling programs. Booking trends for global biopharmaceutical clients remained healthy in the third quarter and were stable on both a sequential and year-over-year basis.
Thank you, Jim, and good morning. I'm pleased to join today's call as Interim Chief Financial Officer. Throughout my eight years at Charles River, I have gained a great understanding of our global business and have tremendous confidence in our team's ability to execute on the company's strategic and financial priorities. I want to thank Jim and the board for their support. Before I begin, may I remind you that I will be speaking primarily to non-GAAP results, which exclude amortization and other acquisition-related adjustments, costs related primarily to restructuring initiatives, gains or losses from certain venture capital and other strategic investments, and certain other items.
Many of my comments will also refer to organic revenue growth, which excludes the impact of acquisitions, divestitures, and foreign currency translations. We are pleased with our third-quarter performance, which included revenue and non-GAAP earnings per share that modestly exceeded the outlook we provided in August. As a result of the third-quarter outperformance, we are narrowing our revenue and non-GAAP earnings per share guidance. We now expect full-year reported revenue will decline 0.5%-1.5%, and organic revenue will decline 1.5%-2.5%, or at the middle of our prior ranges. Non-GAAP earnings per share are now expected to be in a range of $10.10-$10.30, or at the upper end of the prior range. The $0.10 guidance improvement at midpoint was largely driven by the third-quarter operational outperformance. By segment, our updated revenue outlook for 2025 can be found on slide 29.
We have narrowed the organic revenue outlook for the DSA segment to a decline of 2.5-3.5% to reflect better-than-expected performance to date. You may recall that we started the year with an initial DSA outlook of a mid to high single-digit organic revenue decline. We have slightly tempered the manufacturing segment's revenue outlook to flat to a slightly negative organic decline, and the RMS outlook is essentially unchanged. The outlook for the operating margin is also unchanged at flat to a 30 basis point decline. Unallocated corporate costs totaled $58.9 million in the third quarter, or 5.9% of revenue compared to 6.6% of revenue in the same period last year. The decrease was primarily due to the lower health and fringe-related costs. For the full year, we continue to expect unallocated corporate costs will be approximately 5.5% of total revenue, unchanged from the prior outlook.
I will now provide an update on the non-operating items. Total adjusted net interest expense was $24 million in the third quarter, which represented both a sequential and year-over-year decline. The reductions were primarily the result of shifting debt to lower interest rate geographies. For the full year, we expect total net interest expense will be in a range of $100 million-$105 million, consistent with the prior outlook. At the end of the third quarter, we had outstanding debt of $2.2 billion, with approximately 70% at a fixed interest rate compared to $2.3 billion at the end of the second quarter. In addition to lowering our interest expense, continued debt repayment resulted in gross and net leverage ratios of 2.1 times at the end of the third quarter. The non-GAAP tax rate in the third quarter was 28.3%, representing an increase of 700 basis points year-over-year.
As expected, the increase primarily reflected the impact of the One Big Beautiful Bill Act, or OB-3, as well as the impact of the enactment of certain global minimum tax provisions. For the full year, we continue to expect our non-GAAP tax rate will be in the range of 23.5%-24.5%, which is unchanged from our prior outlook. Free cash flow for the third quarter was $178.2 million compared to a record $213.1 million achieved in the same period last year. The year-over-year decrease was primarily driven by lower earnings. However, free cash flow improved sequentially by $8.9 million as a result of continued improvement in working capital. CapEx was $35.6 million, or approximately 3.5% of revenue in the third quarter, compared to $38.7 million last year, reflecting our focus on disciplined capital spending.
For the full year, we expect free cash flow to be in a range of $470 million-$500 million, an increase from our prior outlook of $430 million-$470 million due to the robust third-quarter cash generation. CapEx will be approximately $200 million, a decrease from our prior outlook, and at approximately 5% of 2025 revenue, it will be well below our peak capital spending in recent years. The improved free cash flow outlook reflects our tightly managed capital spending and disciplined working capital management. As Jim mentioned, the board refreshed our stock repurchase authorization in October to a new $1 billion, all of which is available for future repurchase activity. We will continue to evaluate the optimal balance between strategic acquisitions, stock repurchases, debt repayment, and other uses of capital as part of our capital allocation strategy.
With our strong free cash flow generation, we will regularly evaluate making additional stock repurchases under this authorization. As part of the strategic review, we will continue to work diligently to maximize our financial performance, including through disciplined capital deployment and by actively managing our cost structure. A summary of our 2025 financial guidance can be found on slide 35. With one quarter remaining, our fourth-quarter outlook is effectively embedded in our full-year guidance. For the fourth quarter, we expect reported revenue to be in a range of flat to a low single-digit decline, and organic revenue will decline at a low to mid-single-digit rate year-over-year. Looking at the sequential progression from the third quarter, RMS revenue will be lower due to the acceleration of NHP shipments into the third quarter, as well as normal fourth-quarter seasonality.
DSA revenue is expected to be stable to modestly below the third-quarter level, and manufacturing revenue is expected to improve due to the year-end ordering patterns in the microbial solutions business. Non-GAAP earnings per share are expected to be flat to 10% below the third-quarter level of $2.43, reflecting margin pressure in the DSA segment due in part to higher staffing and NHP sourcing costs, and in the RMS segment due to timing of NHP shipments and normal seasonal trends. In conclusion, we are pleased with our third-quarter performance, which modestly exceeded our expectations and with the actions that we will undertake as part of the board's strategic review. The initiatives we are taking to strengthen our portfolio, maximize our financial performance, and maintain a disciplined capital allocation strategy will further strengthen our market position and lead to long-term shareholder value creation. Thank you.
That concludes our comments.
We will now take your questions.