Q4 2023 3D Systems Corp Earnings Call

Participants

Mick Koski; Vice President, Investor Relations; 3D Systems Corp

Jeffrey Graves; President, CEO, & Director; 3D Systems Corp

Jeff Creech; CFO & EVP; 3D Systems Corp

Troy Jensen; Analyst; Cantor Fitzgerald

Greg Palm; Analyst; Craig-Hallum

Brian Drab; Analyst; William Blair

Jacob Stephan; Analyst; Lake Street Capital Markets

Ananda Baruah; Analyst; Loop Capital Markets

James Ricchiuti; Analyst; Needham & Co.

Presentation

Operator

Hello. And welcome to the 3D Systems' Fourth Quarter and Full Year 2024 earnings call and webcast. (Operator Instructions) As a reminder, this conference is being recorded. It's now my pleasure to turn the call over to Mick Koski, Vice President, Investor Relations. Please go ahead, Mick.

Mick Koski

Good morning, and welcome to 3D Systems' conference call to discuss the preliminary results of the fourth quarter and full year 2023 financial results presented on today's call and included in our earnings release are unaudited.
The Company is in the process of completing its quarterly and year-end close process. Accordingly, actual results may differ from the anticipated results discussed today and shown in our earnings release, we're delaying the filing of our annual report on Form 10-K for the fiscal year ended December 31st, 2023, and we'll file a Form 12B-25 notification of late filing with the SEC to extend the deadline to file the Form 10-K. Our final audited financial results will be included in the Form 10-K on file.
With me on today's call are Dr. Jeffrey Graves, President and Chief Executive Officer; Jeff Creech, Executive Vice President and Chief Financial Officer; and Andrew Johnson, Executive Vice President, Chief Legal Officer, and Chief Corporate Development Officer.
The webcast portion of this call contains a slide presentation that we will refer to during the call. Those following along on the phone who wish to access the slide portion of this presentation may do so on the Investor Relations section of our website.
Following discussion and responses to your questions reflect management's view as of today only and will include forward-looking statements as described on this slide. Actual results may differ materially and additional information about factors that could potentially impact our financial results is included in our latest press release and our filings with the SEC, including our most recent annual report on Form 10 K and quarterly reports on Form 10-Q.
During this call, we will discuss certain non-GAAP financial measures. In our press release and slides accompanying this request webcast, you will find additional disclosures regarding these non-GAAP measures, including reconciliations with comparable GAAP measures and Finally, unless otherwise stated, all comparisons in this call will be against our results for the comparable period of 2022.
So with that, I'll turn the call over to our CEO, Jeff Graves, for opening remarks.

Jeffrey Graves

Thanks, Mick, and good morning, everyone.
I'll begin this morning with a brief reflection on 2023 performance. I'll then shift focus to 2024 and our path forward discussing not only our restructuring initiatives to take cost out of the business, but equally important, the areas that we are consciously choosing to continue to invest for future growth.
Finally, I'll wrap things up with some comments on our 2024 outlook before handing things off to our new CFO, Jeff Creek, for a deeper dive into the financials. As you may recall, Jeff joined the Company in mid-December. He brings over 25 years of experience in finance, leadership and business transformation and has already hit the ground running as he led us through the year and close. Welcome aboard, Jeff, it's great to have you with us before I begin discussing our recent results and forecast for the year I think it's an important time to reflect on the state of the industry and where 3D Systems is positioned within it.
I'm now on Slide 5. 3D printing has been around since our founder, Chuck Hull invented the technology in the early 80s. They very quickly prove useful as a prototyping technology, a role. It continues to play today. However, the real value of additive manufacturing is it's now more commonly called is when it began to be used to manufacture real components, not just prototype parts. This evolution took over 20 years and it required advancements in the printing, hardware and software for process control, and most importantly, advancements in materials that could be printed.
Fast-forward to today, we have the technology to manufacture an incredible range of products from orthopedic and dental implants for human beings to key components for aerospace, automotive and many other industrial markets. This evolution has today provided companies with four key advantages that are not available through traditional manufacturing processes. The first is design flexibility, which means very simply the engineers can create much more complex shapes that can't be manufactured even with the most advanced machining or casting technologies. Importantly, these parts are made through additive techniques that are often less expensive and less wasteful than traditional methods, bringing costs down and reducing environmental impacts from manufacturing.
The second key benefit, one that's bringing many large companies industrial companies into the market more recently is what we call mass customization. This means producing large quantities of parts with each being slightly different from the prior one. This benefit has been and has been enabled by the improving economics of 3D printing enabled by increased printer size, speed and reliability we clearly see this in our health care business where orthopedic implants and dental products can be customized for each person's need. And in fact, in the orthodontic area, our technology enables the manufacture of over 1 million customized clear aligners per day. And soon other product such as custom printed dentures will follow at a similar scale.
On the industrial side, the same type of applications are now in focus spanning both polymer and metal technologies. The third benefit is low volume, high complexity parts. Once again, printing speed, combined with new materials that are designed to meet specific application needs are key to success electronic components and those used in semiconductor equipment manufacturing are, but two of many examples. And finally, greatly enhanced supply chain flexibility enabling production where you need it when you need, it is important, more important than ever for the you're printing replacement parts for an oil refinery out in the desert or on a ship at sea or you're reducing risk by moving production closer to the point of assembly and operations.
Many new customers in the post-COVID period are evaluating the capabilities and economics of additive manufacturing and are embracing this new technology.
So what does all this translate to full? While recent macro factors have slowed the investment for the entire industry in the short term, these fundamentals support an expectation of compounded annual growth averaging over 20%, which translates to an $80 billion market opportunity over the next five to seven years.
So with all that as backdrop, I was asked recently by one of our directors is 3D printing, a growth industry. But given the expectation of market growth and appropriate question asked my view why don't you as investors see it in the numbers?
So there are two simple reasons. One is that recent economic conditions have impacted CapEx spending by our customers in the short term, this is expected to correct itself as interest rates ultimately decline in consumer demand becomes more predictable.
The second is the new market entrants have emerged, particularly from China in the hardware element of the business. This has created a very fragmented industry, but one that increasingly seeks to consolidate, creating the scale and breadth of technology needed to service our global customer base in their factories around the world. So all of this work is 3D system stand today and why should an investor be interested in our count our company, specifically in other words fundamentally in a growth industry, there are three reasons to invest in 3D Systems. First, we have the scale needed to support our global customers from a sales and service standpoint, while driving the internal efficiencies needed to sustain the R&D spend to meet our customers' application needs and almost $500 million of revenue in 2023 for one of the largest companies in the industry with strong gross margins that continue to improve even in this difficult economic climate. Our R&D investments support the broadest range of additive technologies in the entire industry, bringing together metal and polymer hardware platforms and an exceptional materials portfolio with intelligent cloud-based software to deliver targeted application solutions to key customers around the world. We have a sales and service and storage infrastructure to support our customers' manufacturing plants wherever in the world they choose. And we have experienced to show that it works. In one case, we have over 600 printers installed in plants in Central America, Eastern Europe and Asia, all printing in harmony to deliver custom products every day of the year. Last year, the single customer delivered hundreds of millions of bespoke products successfully to customers on virtually every continent. And now we're expanding our technology base into regenerative medicine and emerging market, of which the ability to print vascularized human tissue will change health care forever. No one in the world is better positioned than we are to bring these solutions to the market, creating value for all of our stakeholders. In the short term, we have the flexibility to adapt to economic volatility by taking out costs and to do so without stifling future growth investments needed to serve that $80 billion addressable market in the years ahead, endorsed by a strong balance sheet with a healthy cash reserve, providing headroom to execute on a strategy that delivers substantial value creation for the Horizon ahead.
So with that backdrop in mind, let's turn to slide 6 without question 2023 proved to be a challenging year and it all centered on revenue, which remained under significant pressure all year long, far and away. The most significant impact on our year-over-year revenue decline was attributed to our dental orthodontics business. This was a headwind that we had begun to experience in 2022. And inflation first took its toll on consumer discretionary spending pressure bill significantly in 2023 as demand in the orthodontic space tumbled in inventory spikes. In the end, our full year dental orthodontics business declined 39%, making matters worse from a demand perspective last year with a broad-based macroeconomic and geopolitical uncertainties created in part by the rapid rise in interest rates used in an effort to dampen inflation. Clearly, this was necessary. This rise in rates caused many of our customers to slow their capital spending as they waited to see what the impact would be ultimately on consumer demand. And we last spoke in November, our expectation was that this delay in capital deployment would moderate during the fourth quarter following the usual seasonality patterns for our company. Unfortunately, this did not happen. To be clear. This was a delay in placing orders with very few cancellations as our customers remain committed to additive manufacturing as incremental capacity as needed and new products are introduced. Given that these concerns continue in the new year, we're assuming this trend of slow roll and purchase orders continues in 2024. This may prove to be conservative, but for now, I think it's prudent for this reason. We continue to take cost actions needed to drive near-term profitability and cash performance even in a static sales environment.
One thing to point out while navigating this challenging top-line environment, I was very proud of our team's ability to deliver improved gross margins in 2023, having driven through selective price actions to recover inflationary costs early in the year. As the quarters past, we continue to focus on our in-sourcing of manufacturing into our newly formed centers of production excellence and to begin optimization of our extended supply chain. This led to greater efficiencies from the business throughout 2023 as reflected in our rising gross margins, and we expect it to unlock even more benefits going forward.
The last point I'd like to acknowledge that our EBITDA performance when we first entered the year, we had a much different outlook for revenue and felt that the levels around $560 million, we could deliver at least breakeven profitability in response to our more significant revenue challenges, we took extensive actions to remove operating costs from the business. As a result, we're seeing a reduction in core expenses, and we expect this to continue to note, these impacts were overshadowed in the fourth quarter by incremental investment in our regenerative medicine initiative and some higher than normal expenses near year end, which Jeff will detail later on Setting this aside expectation for 2020 for reductions in OpEx and continued improvement in gross margin performance, both of which lead to improved EBITDA realization.
Let's turn to Slide 7 to delve deeper into our restructuring initiatives. Like many of our industry peers, pressure on revenue growth in 2023 prompted significant cost reductions as a response, while we've implemented cost actions of our own. I'd argue our philosophy and strategy for doing so is fundamentally different as a starting point. You just heard me talk about our strong balance sheet with healthy cash reserves and an opportunity to drive considerable improvements in working capital through inventory reduction in the year ahead, we have an ability to be very methodical and deliberate in our restructuring efforts, balancing the need for improved operating efficiencies with support for critical R&D investments needed to deliver the growth we see ahead. In short, we're eliminating a substantial amount of costs to better reflect the current revenue environment, but we'll never do so at the expense of starving future growth initiatives that we deem to be critical to long-term value creation that said, more simplistically, we're responding to our environment in order to thrive, not just survive our or focuses not just on preserving this year ahead, but doing so in a fashion that still unlocks enormous potential for the years ahead.
So to summarize, at the midpoint of our revenue range, you'll see us pointing to a flattish performance as the economy finds its footing. Our efficiency programs and cost actions should deliver continued improvements in gross margins while decreasing our overall OpEx costs. We believe this combination will result in the positive EBITDA performance this year while maintaining our critical investments for growth. An enabler of this strategy is a keen focus on portfolio optimization, which will be an ongoing of effort for us. The result may include decreasing investments in certain areas that no longer provide an acceptable return on capital, which may result in disposal of non-core assets or establishment of partnerships in certain areas while increasing investments in more attractive parts of our extensive portfolio. I'd like to give you an idea of some of the areas we find particularly exciting at this juncture.
On Slide 8, you'll see our offering of end-to-end solutions to address the orthopedic device market. We have manufactured millions of medical devices within our own facilities in a far greater magnitude produced by our customers leveraging our printers, materials and software in their own facilities in the $2 billion market for CMF or craniomaxillofacial bone structures were among the leaders when it comes to supporting the full ecosystem of surgical planning guides and implants. This market is growing for us as we now expand from oncology and other planned surgeries to increasingly support trauma patients using both metal and polymeric solutions. In the 10 billion spinal market. We have the highest adoption rate of our DMP. 300 metal printing technology to produce spinal cages and surgeons are increasingly taking advantage of additive design capability to provide enhanced patient success.
Building on the learnings from our CMF and spinal capability, we're now making significant inroads into the fast growing foot and ankle market space, which is valued at almost $4 billion today by supporting commercialization of several total ankle applications.
Having now expanded our metals technology from Titanium cobalt chrome, we have the added capability to support replacement and repair of moving joints that are exposed to higher levels of fatigue over time. This is essential as we penetrate the foot and ankle market and then expand into the $20 billion hip and knee market, which will leverage our new triple laser metal printing system.
Even in the difficult revenue environment of 2023. Personalized Healthcare was a positive outlier. If you flip to slide 9, delivering double digit growth year over year, and we expect this trend to continue while significant element of growth will be expanded indications that I've just reviewed for you. Another portion will be driven by geographic expansion beyond our core markets of North America, broadening our reach to more surgeons and patients across the globe. In the aggregate, we view the opportunities in personalized medicine space and our aggressive investments in this business to yield a tripling of revenue over the next five years.
Second element of our healthcare businesses, dental, historically, our largest revenue stream in this business has been orthodontics where we pioneered the 3D printing technology for clear aligners over 20 years. Ago.
Now with the mass adoption of digital digital imaging advancements in advancements in materials and printing technology, we see continued opportunity to open new dental markets for additive manufacturing, a major market is for dentures, which until now have been manufactured through machining and hand assembly for this reason, much of the manufacturing base move to Asia to access lower labor costs and lead times extended accordingly, fiber. Just last week, we announced the introduction of the industry's first multi-material one-piece jet adventure solution by adopting additive manufacturing production cycle time. And even more importantly, the labor content for venture fabrication is dramatically reduced. This allows the process to move closer to patients and deliver faster and lower costs than ever before with the addressable denser market expected to exceed $2 billion by 2028. This presents a tremendous opportunity for our jet adventure solution. This venture combines our next-gen jet adventure piece and base materials in one printing operation delivering not only beautiful aesthetics, but exceptional break resistance, a combination never before attained in a printed single-piece denture. Combining our materials with the speed of our jetting printer technology drastically accelerates production rates to deliver these virtual visually beautiful and extremely durable products to patients in a much shorter timeframe.
When we introduced this product last week at the annual Dental Show in Chicago glide well, a long-time 3D Systems customer and the world's largest producer of restorative dental devices commented specifically on it citing its superior durability and aesthetics as one of our key launch customers. We're proud to have wide wells endorsement and enthusiastic embrace of this new technology as we anticipate five 10 K clearance and yet from the FDA in the second half of this year.
Turning now to Slide 11. In offering the broadest range of technologies, we're concentrating heavily our innovation in metals, despite pressures in other industrial markets. During the year, we delivered solid growth from both semiconductor capital equipment and aerospace and defense markets. We see additive continued to generate momentum in these industries and others such as shipbuilding going forward, on the right-hand side of 11, you'll see a sample of some of the many proven solutions for different materials and applications we offer in key industries. Our technology enables the consolidation of parts accelerating time to market for our customers, industrial, with improved performance facilitated by freedom of design. It's an overall continuation of the important contributions we can make in mitigating supply chain disruptions.
But turning to slide slide 12. Since joining 3D Systems in December 2020, we've had an intense focus on new products. While fuel these have come to market through acquisition, mostly being developed through R&D investments for the typical three-year development cycle for a new platform, we're now beginning to see the fruits of our investments, which will continue to gain momentum over the next 18 months. During the fourth quarter alone, we delivered nine new products, five new materials, three printer upgrades and one key accessory. More recently, we shipped our first MJP. 300 W jetting system, the first of our new generation of jetting printer technology. We completed validation of testing on our SLS. 300 machine and are ramping production as we move towards the second quarter of this year. Additionally, we're on track to deliver on our commitments for our newest metal printer, the DMP. three 50 triple laser system as well as our revolutionary PSLA. to 70, which combines the benefits of SLA with a high-speed projection technology and leverages the materials developed for our Figure four printing system. This new printing solution set was introduced in concept at the 2023 Formnext show and was met with great enthusiasm by our customers.
Okay. This is by the end of 2024, which will be a refresh of virtually our entire product portfolio and printing technology, setting the stage for an exciting 2025 and beyond.
And finally, let's turn to our regenerative medicine initiative on Slide 13. As you've heard from me multiple times over the last few years, our regenerative medicine initiative is unparalleled strategic differentiator with technology that may not only deliver transformational growth and shareholder value for our company, but importantly, profoundly change the future of health care, leveraging our 3D printing technology leadership, regenerative medicine is structured into three distinct opportunities, human organs, non organ tissue and drug development. In December, we announced that Harriss Currie with joined 3D Systems in the newly created role as President of regenerative medicine for us. Paris will draw from his 30 years of experience in executive leadership with a focus on building emerging businesses. Prior to joining us, Harris was Senior Vice President, CFO for Luminex Corporation, spending over two decades with the biotech company helping lead their growth from a start-up to more than $500 million in revenue during his tenure the creation of his role reflects the increasing maturation of our exciting new technology as we move from early stage conceptual development toward commercial application.
Specific to our work on organs in our outstanding partnership with United Therapeutics working vigorously to produce the most complex product ever printed. The human lung, something that once began as a dream is now well underway and continues to track toward our goal of human trials for 2027.
Looking back on last year, we had close to critical point in lung development during the third quarter. Our progress validated with recognition of a $4.5 million milestone payment for the program and moving a yet another year closer to our target for human trials on the drug development front. We're making great progress in our wholly owned subsidiary, systemic Vyyo formed in 2022, and you'll see this on slide 14.
Page 5 shows our proprietary organ ownership platform is a novel application set, which allows pharmaceutical companies to test their drugs on vascularized cellular ice tissue chips that mimic human response to drug therapies at scale in the laboratory, we believe systemic stage BaaS platform has the potential to dramatically improve the drug discovery and development time line, particularly important, considering market research indicates that nine out of 10 drugs, they only clinical clinical trials, leading to an average of $2.6 billion invested by pharma companies per drug approved over a 12 year time horizon to establish FDA approval for each drug introduced to the market position. We gained significant momentum and validation of our technology, and I'm pleased to announce that before the end of last year, systemic bio successfully closed their second contract with another large pharmaceutical company in total. This represents collaborative contracts now with two of the top four largest pharmaceutical companies in the world and an impressive pipeline of future opportunities ahead based on the extraordinary progress made to date and in order to propel this business forward, while leveraging the strength of our core business as well as our balance sheet to invest for continued progress in regenerative medicine. For 2024, we expect to invest in key regenerative products to continue our momentum and maintain the unrivaled lead. We have over any 3D printing competitor in our space. While this is still a highly developmental area and undoubtedly some avenues will advance more quickly than others, we continue to believe that regenerative medicine offers tremendous value creation in the future. We'll be proud to update you on our progress throughout the year.
So with that, I'll finish on Slide 15. So to recap what you've heard from me this morning. Given the current economic environment, we expect our full year revenues for 2024 to be relatively flat given the softness experienced throughout the year last year. We would hope that this is a conservative position to take that. It remains prudent to say so at this time, our in sourcing, supply chain and restructuring work to date has provided a strong foundation for gross margin improvement, and we expect that to continue even in a static sales environment. Any volume leverage on revenue upside would further enhance this performance and finally, with stable revenue performance, expanded gross margins and carefully managed OpEx at reduced levels from 2023. We're committed to deliver positive adjusted EBITDA performance and operating cash flow for 2024 prudent R&D investments in our highest priority customer initiatives. We believe we can deliver on an exciting top line growth and sustained profitability in the years ahead.
So with that, I'll now turn things over to Jeff. Jeff?

Jeff Creech

Jeff, thank you very much, and I appreciate the warm welcome and good morning to everyone on the call have already met many of you on the conference circuit in January. I look forward to meeting more of our investor and analyst community in the very near future.
I'll begin with Slide excuse me, slide 17 with our revenue summary for the full year 2023, we reported consolidated revenues of $488 million, down 9% from the prior year year-over-year results were primarily impacted by headwinds in our dental orthodontics business, further amplified by broader macro weakness pressuring most other markets, which was most accurately reflected in printer sales from a segment perspective, revenues in Industrial Solutions mostly held firm at $275 million with full year performance declining about 1% despite a tougher economic backdrop within Industrial and there are headwinds from the prior year in more price conscious markets such as jewelry, were largely offset by continued momentum and growth in areas such as transportation and motorsports semiconductors and aerospace and defense Healthcare Solutions delivered full year revenues of $213 million, declining approximately 18% from the prior year. The full year's performance was most heavily influenced by the decline in our dental orthodontics business down roughly 39% from 2022, while the remainder of our health care segment was essentially flat, although embedded in this was full year growth of 12% for our personalized health care business.
Shifting to our fourth quarter performance on slide 18, we reported consolidated revenues of $114.8 million, declining approximately 14% from the fourth quarter of 2022. Our materials and services performed well in the quarter, growing from prior year. It simply was not enough to offset weakness in printer sales. Again, most significant in dental, but also felt more broadly across our remaining businesses.
From a segment perspective, Industrial Solutions reported fourth-quarter revenues of approximately $64 million, a 12% decline from prior year, similar to the full year trends just mentioned, within industrial strength in markets such as aerospace and defense and semiconductor was more than offset by broader printer weakness in most other industrial end markets.
Healthcare Solutions reported fourth-quarter revenues of $51 million, down approximately 16% from prior year and across most markets a notable exception to this was again the personalized health care, delivering double digit growth compared to last year's fourth quarter.
Now to Slide 19 for a look at our gross margin for the full year 2023, we reported gross profit margin of 40.7%.
On this slide, you'll find non-GAAP gross margin. Non-gaap gross margin for the year was 41.1%, a 130 basis point improvement over the prior year and primarily driven by favorable mix, operating efficiencies and the positive impact of price increases to offset inflationary pressures.
Specific to the fourth quarter, gross margin and non-GAAP gross margin were 40.4% and 41.9%, respectively, with the improvement in non-GAAP margins for the quarter, largely driven by mix. It's important to note that while the favorable impact of mix is more indicative of the associated short term pressures on customer CapEx deployments for printers. We're increasingly encouraged by our in sourcing and efficiency efforts and the positive impact we expect them to drive on longer-term margin expansion, coupled with our technology roadmap for new product introduction expected throughout 2024 and beyond. It's reasonable to expect continued improvement in gross margin performance on a year-over-year basis going forward.
Now let's turn to Slide 20 to finish up the P&L.
Before I begin our usual readout on metrics for the year and for the quarter. I want to call your attention to a specific accounting related charge or charges to GAAP in operating expenses we took during year end quarter during the fourth quarter as these are non-cash impacts and excluded from our non-GAAP metrics. In the aggregate, these were approximately $313 million for the full year and $298 million for the fourth quarter related to the impairment of goodwill and other assets. Additionally, we realized a $32.2 million gain on our repurchase of 2026 convertible notes at a discount, and that's also excluded from our non-GAAP metrics for the full year 2023. Adjusted EBITDA of negative $24.5 million declined from the prior year by $18.7 million. The decline was primarily driven by lower revenues and increased operating expenses for the year. Non-GAAP OpEx was $246.6 million for the fourth quarter 2023 adjusted EBITDA of negative $12.3 million declined in the prior year by $7.5 million, primarily driven by the same factors as noted above. For the quarter, non-GAAP OpEx was $66.1 million while we have taken considerable restructuring actions throughout 2023 have additional items in place from our November initiative. Their impact to operating expense was offset by four very distinct events or circumstances had increases in our regenerative medicine R&D spend. We experienced a higher than normal or temporary external support fees associated with our year-end audit. And frankly, my transition we had an accelerated investment in our IT infrastructure for modernization and systems enhancement for cyber security. And we felt this was very important as the world gets scarier and scarier, as you're all aware, cyber security is a key issue for everyone. And finally, we incurred advisory and legal fees in association with December's convertible note repurchase. It's important to note as we consider kind of where we stand going into 2024. One of the other one of the key costs that we incurred as part of my transition were some accelerated fees or rather a larger than normal fees associated with our year-end audit. We are currently transitioning to a Big Four due to our increasing complexity associated with our business. I mentioned these items specifically to clarify that we view them as temporary and specific operating expenses and reiterate our expectation to reduce operating expenses in 2024.
Based on the restructuring actions previously announced earnings per share, full year 2023 resulted in a fully diluted loss per share of $2.85 compared to a loss per share of $0.96 for 2022, excluding stock-based compensation and other nonrecurring charges detailed in our appendix, this resulted in non-GAAP loss per share of $0.26 compared to $0.23 for the prior year. For the fourth quarter, we reported fully diluted loss per share of $2.30 in 2023 compared to a loss per share of $0.2 in 2022. Non-gaap loss per share was $0.11 in 23 compared to a loss per share of $0.06 in 22.
Now let's turn to Slide 21. For the balance sheet. We closed the year with $331.5 million of cash and cash equivalents on our balance sheet with no short-term investments compared to a total of $568.7 million in these same items at the end of 2020 to the year-over-year decrease was primarily driven by cash used in operations at $80.7 million, acquisitions and other investments of $29.2 million and capital expenditures of $27.2 million. Additionally, this also reflects slightly over $100 million used in the repurchase of the Company's 0% 2026 convertible notes announced in December, we opportunistically repurchased $135.1 million notional value at a significant discount transaction, strengthened our overall balance sheet with the extinguishment of nearly 30% of the outstanding maturity, while leaving healthy cash reserves to invest in future growth, fund core operations and strategic optionality.
Looking forward, we maintain the expectation that our in-sourcing actions taken over the past two years will deliver a significant return in the form of increased gross margin and generating cash from inventory. Our expectation of improved profitability would also return us on the path to the annual regular generator of cash flow. That said, as Jeff and I mentioned throughout this morning's call, we view 2024 as a year of continued investment, and we'll continue to evaluate strategic opportunities through R&D and capital expenditures to fund our most critical growth programs. We'll be doing this while keeping a very close eye on cash usage across the system and throughout the year.
I'll conclude now on Slide 22 with our 2024 outlook. As you've heard from us this morning, from current economic conditions, we view 2024 as a year of driving improved profitability while continuing to fund growth in a relatively flat revenue environment. In that regard, we expect full year revenues in the range of $475 million to $505 million and to aid with modeling, we expect a seasonally soft start to the first quarter with revenues down sequentially and year over year. However, consistent sequential improvement each quarter throughout 2020 for non-GAAP gross margins in the range of 42% to 44% as a result of our ongoing operational efficiencies and with particular strength in the second half of 2014 non-GAAP operating expense in the range of $223 million to $238 million, reflecting a reduction in costs from our previously announced restructuring activities. And including incremental offsets in critical growth programs as discussed throughout this morning's call.
Finally, adjusted EBITDA for the full year is expected to be breakeven or better as the efforts in our proved margin profile and cost reductions should drive substantial improvement to consistent profitability without the expectation of top line growth at the midpoint of our guide.
Thank you for your time and continued support of 3D Systems. And we'll now open the line for questions. Operator, please.

Question and Answer Session

Operator

(Operator Instructions) Troy Jensen, Cantor Fitzgerald.

Troy Jensen

Gentlemen, and thanks for taking my question and just dial up into the team that you I guess first, the U.S. I guess first thing I want to ask is just dental all in second is to grow here in 2024.

Jeffrey Graves

Yes, Troy. It's certainly in the process of bottoming the ad, if you know, if you look at, you know, we've got pretty good visibility to the ultimate customer and the end market. So clearly, demand is rising yet the complexity as 23 takes by was the clearing of inventory in the supply chain. So there's a lot of work done last year to clear that inventory. So I would tell you that it's pretty much cleared. And so we're I would call Q1 here bottoming and then we should see a lift going forward after that, primarily in materials and services for that for that business. There is a I believe there's plenty of printing printing hardware capacity in that in that supply chain. It's more materials consumption rising now to meet rising demand. So I think you'll see it kind of bottom out or whether it was whether a bottom in Q4, it's bottoming in Q1 is kind of hard to tell but it's in the process clearly of turning.

Troy Jensen

Okay, perfect. And then sticking in dental here, I know you said you expect to get FDA approval for NexTone later this year. Is there also insurance qualifications you guys need to before a tenant can really take now?

Jeffrey Graves

We're good to go with this is we get the five 10 K approval. We're going to go choice. It's a fact we're putting in printing capacity to handle putting that product now. So we're really bullish on that new product. It's a it's a terrific looking at performing product. We've got, as always work our way through the FDA regulatory approvals, but we view that as very manageable and we should have it in the market later in the year.

Troy Jensen

Okay, perfect. And last question, I'll cede the floor here. Can you remind us though what you're spending quarterly at regeneration?

Jeffrey Graves

What we're spending quarterly on regenerative and I'm not trying to hedge through is a bit complicated because we spend a certain amount and we get some of that reimbursed from United Therapeutics. There's some things we do on our own, especially around pharma, but but a lot of the organ work obviously is reimbursed. So we spent about $10 million last year of our own money. If you take away all the noise.
We spent about $10 million last year of our own money on regenerative medicine, okay?
That are primarily the pursue the pharmaceutical market and we continue to look at the range of applications, we could be chasing dozens of them. We're trying to be very disciplined about what we actually Chase and our highest priority with our own internal funding is the pharmaceutical pursuit, okay.
Because I the payoff to making progress against the drug introduction time lines is enormous. So and the receptivity of the pharma companies has been really encouraging. So I we landed our second contract late last year. As I mentioned, we've got it. We've got a really nice pipeline of interest coming forward, especially after the JP Morgan Healthcare Conference.
So things are things are looking very promising for the farmer pursues. So we're clearly giving priority to that right now. And then obviously, the long work with United Therapeutics is a extremely high priority as well for the longer term.

Troy Jensen

If I understood well, good luck going forward, and I'll just shout out here to Andrew. Thanks.

Jeffrey Graves

Thanks, for that as well. And thank you, Troy, for for a great job covering us. We really appreciate it. Thank you.

Operator

Greg Palm, Craig-Hallum.

Greg Palm

Good morning, everybody. I guess just thinking back to Q4, it sounds like the vast majority of the the shortfall was more system-based CapEx driven than anything. Do you have the growth rates in systems versus consumables for the quarter? And any sort of general sense on how that trended for the full year as well?

Jeffrey Graves

Now we'll see if we can dig up a number. I can tell you qualitatively It's Greg. If the equipment equipment was really tough last year with CapEx spending being down, we were we were quite surprised in Q4 to now see the normal seasonal lift, especially because customers, customer engagement and sales has been very high.
And we have this advanced applications group and our sales organization and they are there are bursting at the seams with work to do for customer new customer applications.
So we were very surprised to not see that flow through it as it usually does seasonally at the end of the year by I think it just reflects customers' nervousness about what the rising interest rates are due to end demand. No lack of interest which is the encouraging thing. I think it's more of a timing issue problem being in their 24 guidance was we know it's very hard to say when does that nervousness subside. And so we've modeled it as a pretty flat year this year.
And I hope that's conservative. We do kind of a national number for so we don't have we don't normally break that out, but I can tell you, Greg, just qualitatively, a large shortfall in revenue was hardware driven, not materials and services. Materials usage was actually pretty darn strong. All year, long assist people weren't adding incremental capacity.

Greg Palm

Yes, that makes sense. And, you know, specific to the Q4 decline, I mean, yes, going back a long time and unable to really see that sort of sequential decline usually assumes sort of the opposite, but just the confidence level around that. It wasn't competitive loss. It wasn't share loss. It was more and more timing. Can you just maybe go in a little bit as we go on?

Jeffrey Graves

Yes, we've got you schedule a visit was a big question internally that I had, Greg and I can tell you, we chase it to ground and we've got line of sight almost every printer hardware sells significance and it was not lost market share. It was not a dropping in customer interest, it was strictly a slow rolling purchase orders is what I would call it on their on. Their part is look and we and it's not that they're short of cash. I mean, most of the people we sell to are fine from a cash perspective. Balance sheet, very, very creditworthy.
Big customers is more. They weren't certain. They needed incremental capacity given where interest rates had gone. I think everybody just wanted to see the year turnover and how in demand affected their business. That's that's as much I can tell you but I don't I truly don't believe there was any share loss and I think it was strictly slow rolling purchase orders on our customers' part by and large.

Greg Palm

Got it. Okay. And then last question, Jeff, did you say did you give a non-GAAP operating expense number from the quarter?

Jeff Creech

It did a non-GAAP OpEx was about $66 million for the quarter.

Greg Palm

Okay. With that, that strikes me as being up quite a bit relative to the levels that you saw throughout the year. And obviously, should I maybe take into account a little bit of the restructuring and that you announced in October. So is that right? And I guess what and just to be clear that restructuring you announced in October, can you just remind us just time line and how much is OpEx versus gross margin?

Jeffrey Graves

It's a very logical question, Greg. It's a good one. So there were there were four. There were four items in OpEx in Q4, which we did not take out. We did not exclude to a non-GAAP number because they truly, by definition more strictly one-time.
But I would tell you they were they were they will show very short-term investments focused in Q4. Wanted to run through those Jeff real quickly.

Jeff Creech

So we'll so I got it. What we saw in the fourth quarter were were spikes higher than normal expenses and our external support fees. And again, this consists of audit fees and external consulting fees that we had to make a very intentional investment in to get us to the end of the year and quite frankly, to provide some odd to provide some added assistance in the CFO and internally at a CEO transition level. So those were very intentional for us. We did make some accelerated investments in our IT infrastructure and really around, again, this concept of cyber security. We've had a lot of conversation internally about cyber security exposure. We know that it's a very scary world out there and we know that we are in a technology business where maintaining maintaining intellectual and proprietary information is extremely important to us. We need to be cognizant of what those threats are. So we accelerated some of our investments in that area. We, of course, had the very distinct and legal and advisory services associated with our debt repurchase and those expenses hit in the fourth quarter. And again, as I mentioned, some increases in our regenerative medicine R&D. So all four of those things were higher than normal. And with the exception of Reg NMS, would it would be considered temporary in nature. And we would expect to see them go to more moderate and in some cases be eliminated altogether, they are going to be able to add what.

Jeffrey Graves

Okay, good, very defensive care of it. And we're happy to follow up with Greg on those details. But thanks for the question. It's a good one.

Operator

Brian Drab, William Blair.

Brian Drab

Thank you. I just wanted to clarify one thing first, that when we say the dental orthodontics was down 39%, is that a different number than dental overall? Or it is it's a number for dental.

Jeffrey Graves

It is a different number than dental overall, but it is the predominance of dental of dental if you look at it today, Brian, so it was the big driver there where the rest of dental did not suffer the same kind of impact because the rest of dental is much more reconstructive work. What we do in the mouth. And that's really not optional spending. It's back to orthodontic work that we're involved with. It's a big number and obviously is discretionary. So when when consumed when inflate with inflation spikes, consumers just put off buying. And I think you can see that I'm I'm very pleased with the commentary around, hey, people are buying more of them now. It's kind of a bag of law that there was a lot of excess excess supply chain inventory to work down, and we worked through that largely in 23.

Brian Drab

I'm just curious, I think that you've been giving the dental number in the past rates, the decline or increase in the dental business overall, I don't know if you have that potentially on your fingertips for I'd just be curious what 2023 will look like for dental and for the fourth quarter for dental overall, just given that's something I think a lot of people have been tracking?

Jeffrey Graves

Yes. So also performance for dental overall and 23, 32% and volumes down 30, 32%. All of dental, all of that, all of dental was down 32%. And then we gave you the orthodontics number was down more than what we've seen 30, 39. So yes, so the so the rest of it was up, and I'm glad you're watching the rest of it, Brian, because as we as as the industry now converted to 3D printing and I was at this Dental Show last week, it's remarkable dentures and other reconstructive items. And then I'll go. I think you'll see a much much of a broadening in that market away from orthodontics. Just orthodontics for does actual growth. But the rest of it, I think, has enormous growth come in and we're really excited about.
That's why our focus is right, is very broad and dentistry, right?

Brian Drab

And overall dental is probably down less than 32% in the fourth quarter. I imagine that the decline gets moderated.

Jeffrey Graves

Yes, correct.

Brian Drab

Okay. I'll follow up more on that later on one of the question I wanted to ask at the moment though, is that I noticed inventories and accounts receivables remained and when elevated going into the end of the year, I mean I guess the main driver of that is discrepancy between your expectation and actual sales, but could you comment on that? And then also, I'm just curious if the elevated inventory potentially weighs on gross margin in the near term?

Jeffrey Graves

Yes. So actually, a simple answer on the inventory part of that, Brian, was we completed our insourcing activity last year. We were really aggressive about in sourcing our manufacturing.
We started in 22. We completed it in 23. With that in-sourcing from contract manufacturers. You have to pick up the inventory they had on hand so that that big spike in inventory from last year is was the taking on of their inventory that we now have to burn down the AP and AR balance, we generally were able to hold pricing in the marketplace.
We did have to extend some credit terms to some folks, especially smaller, smaller customers. And we've been a good payer of suppliers, some particularly since COVID to make sure we had adequate supplies. So we're working all elements of working capital. Clearly, there's a really nice ability to generate cash from net working capital this year, and we're working that aggressively. So we're done with the inventory purchases from contract manufacturers when we bring it down.

Brian Drab

And just the last question on that topic is you said EBITDA breakeven is a target for for the year. Is it logical to make the conclusion that you'd also expect to be cash flow breakeven in 2024 it will generate will be positive and operating cash flow.

Jeffrey Graves

And the free cash question is just how much we end up spending on CapEx. We do we have our normal CapEx required for for maintenance and there's some factory improvements with the in-sourcing we have to do. There's a couple of extraordinary growth areas that we have to put capital in in 2014 to grow in 25. They're not huge numbers, but they will it will put pressure on CapEx. So you'll probably see a you'll see positive operating cash flow this year, you'll see a slightly negative, I guess is a slightly negative free cash flow as we invest CapEx and we'll update you on that throughout the year.

Jeff Creech

Yes. Okay. Thank you very much.

Jeffrey Graves

Thanks, Brian.

Operator

Jacob Stephan, Lake Street.

Jacob Stephan

Yes, good morning, guys. Thanks for taking my question. I just want to focus more on industrial side. Yes. I just want to focus on the industrial side of the business. We've seen more investments in kind of the aerospace market. So what kind of investments are you making there, if any?

Jeffrey Graves

So and so in terms of investments, I would tell you the primary investment there you'd say really is in our cost of sales and it's our application engineers that what we see from aerospace right now is they they really they like they really do embrace polymer processing a lot, but a lot of their interest is in metal processing and the use of proven, but new materials with additive. So I'd say they're they're not as far along as developing a lot of new materials brand new chemistries for additive as a polymer scientist, but they're they're deeply in the process of evaluating existing materials on 3D printers. So we spend a lot of investment money on our applications engineers working with customers on specific applications. And it's very interesting the driver of that there's two two camps.
One of them is improved performance. They want to design a park that can be machines at least not easily. So there's the there's the performance driven designers and then we're seeing an increase in those that are motivated by risk reduction for their existing infrastructure. So like oil and gas, we have we have a lot of interest in oil and gas because oftentimes those oil rigs or refineries are in very difficult parts of the world.
And so their customers are forced to hold huge amounts of inventory to make sure they stay up and running.
They're really interested in localized manufacturing. They can do just-in-time production spare parts. So we're pursuing a lot of that for the electrical infrastructure for oil and gas. So if you look at investments that doesn't require us to build new plants and things. There's not a lot of investment except in sales for application development for those for those folks. So if you see an increased spending, it's around sales costs for those new industrial markets. Does that make sense?

Jacob Stephan

Yes, yes, that's helpful. And then you noticed that your U.S. or sorry, you had said that you are in source initiative is when completed in 2023, but maybe just kind of give us an overall progress update on the restructuring initiative. Does bill expect the majority to be completed by Q1?

Jeffrey Graves

Yes, I'd say I would say mid mid year more than Q1. But so there's different. There's three the three legs of the stool are restructuring their straight headcount reductions. And of course, you got to look at North America versus Europe in terms of timing there, all of the North American actions versus were completed the European stuff and progress you've got for us. You've got site closures, we're closing 20 of 50 sites. And these are these are acquisitions that were done years ago, largely that add remaining small groups of people that we're now able to get efficiencies by closing those and consolidating the hubs, if you will, for design and manufacturing. You've got a lot of that work going on this year and the tricky part of that is wind is the wind of the accounting regulations allow you to recognize the savings. So we're driving to specific dates this year on the site closures, which are all underway that all 20 of the 50 are underway. It's a matter of when do they when are they completed from an accounting standpoint? And what credit Can you take in the year that's why there's a range on our restructuring savings, frankly, because accounting rules are really complicated. So we're just driving to get them closed, get them done, get it finished and consolidated and then of course, we have the of the efficiency gains from in-sourcing, so driving driving operational efficiencies all the way through the supply chain.
Now there's insourced. We recognized a little bit of that in Q4 and last year, but there's a lot more to come this year as we go forward. So so those hit both the OpEx line and the restructuring hits both OpEx line and the COGS line, especially in manufacturing. So that's that's why we see a lift this year in our gross margin in 24. And we'll give obviously a big swing in EBITDA by bringing OpEx down so that that qualitatively that's within those three buckets annuals, that's why you'll see the lift in both gross and EBITDA margins even in a flat sales environment.

Jacob Stephan

Okay. Thank you. I'll turn it over.

Operator

Ananda Baruah, Loop Capital Markets.

Ananda Baruah

Yes. Thanks, guys. Good morning. Thanks for taking the questions. And yes, Andy also really have enjoyed working with you over the years of work on everything share spectrum. I have 100% U.S. Jeff, could you just maybe put a little context around the remarks you made about the China competition when you started the call to know, what are you seeing there and what rate, you know, we should be.

Jeffrey Graves

Yes, the industry is very interesting. The industry is really changing. We've got our traditional competitors in the industry and there are smaller companies. And then obviously some bigger companies and some of them, the bigger ones are owned by Lenovo, very large industrial companies.
So you've got that historic competitor makes it increasingly we see the emergence of Chinese players. And it's very interesting because you can you can buy a lot of the key components on the market and what we see them coming into the market from primarily is on the hardware side, not as much on materials and certainly not as much on software, but that in terms of just raw hardware design and and sales, they've they've they're moving into the markets, they're moving into Europe, they're moving into the States. It's definitely happening. And then they just like not to not to generalize too much, but they're competing on price with hardware. The ways the strategically the way we compete with that is on not only the hardware technology, the bringing together of materials and software and servicing the customer well because they often struggle with that. So so broad-based, we're seeing a lot more interest from China on the hardware side. And if you own it, it does make it a challenge when you strictly look at the hardware itself. So part of the pressure on R & D spend is to make sure that technologically we stay ahead in our core markets that we stay ahead. I mean, I'm not talking about regenerative medicine. I know clearly, we're head on that, but it's our core industrial and even health care markets, make sure we stay ahead on hardware, software and materials and then make sure we are we have the scale enough to service customers from a sales and service standpoint.
So while I will comment that we have sufficient scale to do it it. We spend a lot of money servicing customers. And that's where when you talk about consolidation, the industry scale helps it really helps you more economically spread the cost. So so that's the full landscape around China.

Ananda Baruah

I'm glad you asked the question, and I see just a quick follow-up there as they need stood like they've been present in the way that you've described that in the past, followed at the consumer's slash workshop level. But the same kind of approach is it now you're seeing it move up into sort of into the bread and butter market.
I guess one more questions asked about the legislation. Is it both prototyping and production in auto? And I guess just sort of where like context around that?

Jeffrey Graves

Yes, sure. No real good questions. So so clearly, it's more industrial and healthcare. And I'm very glad to have a healthcare business because with all the regulatory environment and the quality concerns, everything else, healthcare is the most difficult market for them to penetrate as is aerospace and defense. So I think those are probably the last markets at a production level that would be exposed to that. And again, talking about production applications, they're going to work their way.
And again, I'm sorry for the broad-brush commentary, but working their way into the other industrial markets, particularly industries that produce consumer products. You know where quality is important, but it's started. It's not a differentiator or things like that they're working oriented into those kind of consumer-driven markets, which again, we have lighter exposure on broadly, but it's still important because that, you know, that trend will continue and it's one, we have to set ourselves up for initial prototyping, clearly easier market, lower risk for them to get into it. But it is definitely they're definitely working on the industrial markets now beginning with the easier ones are working their way up to the harder ones.
So hopefully, it answers both parts of your question.

Ananda Baruah

Yes, I absolutely appreciate the context of the denial of time there. See, I'll leave it there and just get you guys on the part of it.

Jeffrey Graves

So I will look forward to talking to you. I know there's always things.

Operator

James Ricchiuti, Needham & Co.

James Ricchiuti

Good morning. Most of my questions have been answered, but just wanted to follow up to see if I can get a little bit more color on the decline in the industrial business, which at a quarterly level that looks like the lowest quarter of the year and you talk about areas where in the businesses held up better, I think aerospace defense, semi, yes. What areas really particular were weak in the in the quarter and did that was it more pronounced in any one geography?

Jeffrey Graves

Jim, I'll try to answer all of those. It was pretty equal between the U.S. and Europe, where most of our sales are in US and Europe. So it was pretty equally split there. And because I think the central banks in both parts of the world that are raising interest rates, it was much more consumer market driven consumer end market driven. So you look at all of our customers and industrial customers, big industrial companies and customers on the industrial side, but they miss some of them serve consumer markets. And I think that concerns you and that they all had was with this rapid rise in interest rates where consumers are going to be able to buy as much and do they need the capacity. So it's not like they canceled orders, but they just again, I keep using the phrase a slow roll POs. So you can call and say where's the POS next week next week, that's really discount. So they weren't can't pull. I would say they are all coming. I believe we'll continue to see a slow roll until that they're convinced that the consumers are going to go away and the closer you get to specialized equipment like semiconductor equipment manufacturer, very strong for us we've been working in that market for a long time. So people that are putting in semiconductor equipment, heavy industrial equipment that that business we've made strong that no doubt about it defense and aerospace remains strong. It was as you go closer to convince companies that make consumer products, those are the ones that were hesitant on the CapEx spend. And with all of that said, industrial hung in there better than healthcare last year. But again, health care was dominated by by dental being off due to orthodontics. And then again, they had a lot. They had a lot of capacity in printers themselves. So you saw some roll off and printers even in health care. But industrial, we've almost offset the decline by new customers coming in. So while we didn't see an uptick, we didn't see as much of a decline on the industrial side either so that if there's a ray of sunshine in there somewhere it's probably that might disappoint was we Q4 is usually a very strong quarter and clearly it was not we did not see the lift. We usually see people just hung onto their purchase orders.

James Ricchiuti

And just last question for me is just on the non-GAAP OpEx. What you're guiding for in 24 seemed to suggest a pretty healthy step down in Q1, but I don't know if that's going to be more back-end loaded with some of the restructuring actions you're taking?

Jeffrey Graves

Yes, Jim, I would say it's probably a little bit more back-end loaded. We took a lot of action quickly in North America when we launched this in terms of the headcount component, the tricky part is now the site closures, which again are split between US and Europe. The site closures take a little bit more time.
And then the accounting resolution isn't it isn't done until you're out of the facility basically. So so we've got to be a little careful. So you see a range of OpEx in our guidance. And again, I'd like to think we'll do better than that. But it's we tried to be realistic about timing because I do think you'll see a big, a big hit in the first half, which is good, but a lot of the benefits will start flowing through until the second half.

James Ricchiuti

Got it. Thanks.

Operator

Thank you. We reached the end of our question-and-answer session. I'd like to turn the floor back over to Dr. Graves for closing comments.

Jeffrey Graves

Thanks, Kevin, and thank you all very much. I know we went beyond time, but I wanted to field questions because I know it's a volatile time for our company and for the industry. So thank you very much for hanging in there and out and asking the questions you did. I appreciate joining.
We are a we are cautiously optimistic about 24 we look forward to the year ahead. We'll look forward to updating you each quarter on progress. Thanks very much for calling.

Operator

Thank you. That does conclude today's teleconference and webcast. You may disconnect your line at this time and have a wonderful day.