Dave Mosley
Chief Executive Officer at Seagate Technology
Thank you, Shanye, and hello, everyone. We appreciate you being here with us on today's call. Amid a tough business environment, Seagate delivered fourth quarter revenue of $1.6 billion, while holding non-GAAP operating margin at 3.5% to narrow our non-GAAP loss per share to $0.18. These results demonstrate financial leverage and our focus on returning to profitability. Importantly, we continue to generate positive free cash flow, achieving $168 million for the quarter and $626 million for the fiscal year, reinforcing Seagate's solid operational and financial execution amid the business backdrop we have seen in fiscal 2023. This past fiscal year has been shaped by macro and end market conditions that have tested our resilience in addition to our financial performance. I'm proud of our team's perseverance and execution.
As a result of our proactive actions, we've lowered our cost structure by more than $350 million on an annualized basis. We've enhanced balance sheet flexibility taking out nearly $800 million of debt, funded largely by monetizing non-manufacturing facility assets. We reduced production output by approximately 25% compared with peak volume in order to drive better supply demand dynamics and enhanced profitability as the markets recover. And all of these accomplishments were made while delivering on our 30 plus terabyte HAMR product development and qualification milestones, with volume ramp on-track to begin in early calendar 2024.
Looking ahead, we expect the macro and end market conditions that we have flagged throughout fiscal 2023 to continue weighing on-demand through at least December. Consistent with our track record of managing what is within our control, we are taking additional measures to weather the near-term business environment. First, we we're adjusting pricing, which we believe will help to ensure a healthy industry supply chain for our customers over the long-term.
And second, we are carefully managing our manufacturing capacity through a build-to-order approach for certain areas of the business, to align our future production output with customer qualification and demand plans. It will take time to bring production capacity and associated support resources back online. Therefore, it is crucial that we balance lead times for mass capacity products with our ability to re-ramp production. We expect these efforts will enable Seagate to efficiently manage supply for our customers as demand improves.
I'll now share some perspectives on near-term demand factors, in particular in the mass capacity markets, starting with our business in China. As expected, sales in China improved sequentially off of the March quarter lows, driven by increased demand in the VIA markets and certain regional cloud and enterprise OEM customers. While these trends are pointing in the right direction, sales are still well below historical levels. Since the strict COVID protocols were eased last December, the pace of economic recovery in China has been uneven.
For now, we are forecasting sales into China to remain relatively stable for the balance of the calendar year. We are encouraged to see Chinese authorities begin to inject more stimulus to reaccelerate economic growth. Based on customer input, economic improvement is expected to catalyze e-commerce, drive cloud-related ad revenue, and spur new smart city projects. Seagate's VIA and nearline products are positioned to benefit from these anticipated improvements in end market demand.
Outside of China nearline demand from enterprise OEM customers has remained soft. CIOs continue to operate under tighter budgets in response to near-term macroeconomic uncertainties, ongoing efforts to optimize existing workloads both on-prem and in the cloud, our helping enterprise customers defer mass storage deployments. These trends have slowed the pace of inventory absorption among most of our U.S. cloud customers. We have significantly reduced shipments to several large cloud customers in order to accelerate inventory absorption and protect our financial returns.
We project it will take another couple of quarters for inventory levels to normalize. We also believe the timing for demand recovery could be affected by spending priorities, focused on accelerating the build-out of compute-intensive AI infrastructure. While AI and ML been around for quite some time, generative AI has quickly emerged as the next megatrend. This megatrend makes us as excited as ever about the long-term growth drivers for Seagate.
In addition to the ongoing migration of workloads to the cloud, which we believe is far from over, gen AI is expected to be a catalyst for data creation, underpinning future demand for mass capacity storage. In today's earliest stages of gen AI development, you're seeing the necessary first steps of building and training of AI models. These efforts require significant investment in compute architectures and we're seeing that investment ramp today. The next stage of development will yield enterprise-specific use cases, that leverage trained AI models to convert data into value-enhancing applications. As this phase plays out, cost effective mass storage will be critical, and we see HDD as a long-term beneficiary.
We are already seeing examples of content creators generating high-definition images from text, which is growing in use. As evidenced by four of the top services totaling 20 million images each day. Development is well underway to create data-intensive videos and animations simply from voice commands. The adoption of AI generated video bodes well for mass capacity storage. For context, today nearly 4 million videos are uploaded daily to YouTube and their file sizes can be 1,000s of times larger than a single image.
Additionally, we believe that predictive AI will lead to advances in many fields, including science and healthcare. For example, predictive AI can be used to analyze large collection of medical images, many created by gen AI, to provide insight for early detection, prevent disease progressions, and develop patient-specific treatments. Mass capacity data storage will remain both an enabler and beneficiary of these trends working in harmony with Flash and DRAM memories to bring AI applications to bear. While Flash will continue to feed high-performance computer engines, mass capacity HDDs will remain the most cost efficient storage media to house the enormous volumes of data being generated and used for predictive analytics.
Even in today's unsustainably low NAND pricing environment, HDDs are still roughly 5 times more cost efficient than comparable Flash solutions on a per bit basis. And we do not project that gap to close in the next decade. This level of conviction is due in large part to our leading technology roadmap. Seagate is leveraging magnetic recording technology innovations, such as HAMR, across our mature 10 disk HDD platform, positioning us very well to meet increasing demand, including from data-intensive AI applications.
Given the current business climate, Seagate is focused on product development execution and helping our customers qualify next-generation drive capacities. We are executing well on both fronts. We continued to deliver areal density and TCO advancements through our conventional PMR hard disk drive products. Development efforts on what may be our last PMR product are nearing completion and will extend drive capacities into the mid-to-upper 20 terabyte range.
As mentioned earlier, our 30-plus terabyte product launch plan is fully intact and initial customer qualifications are progressing well. We are on track to begin volume ramp in early calendar 2024. We are also preparing qualifications with a broader number of customers, including testing for lower capacity drives targeting VIA and enterprise OEM workloads. Well, there's always work to do, I am pleased with the progress the product development teams have made during fiscal year 2023.
Overall, Seagate has consistently demonstrated the ability to quickly adjust and execute at a high level on every factor within our control. We remain diligent in managing through near-term business conditions, at the same time, I'm excited by the tremendous long-term opportunities ahead, brought about by existing and emerging megatrends underpinned by data. Cost effective mass capacity storage is a critical enabler and Seagate is poised to deliver with strong technology roadmaps and improving financial leverage.
I'll stop there and hand it over to Gianluca.