Russell Ellwanger
Analyst · Susquehanna Financial Group
Thank you, Noit. Hello, everybody. Thank you for joining our call today. Very pleased to share our results for the fourth quarter and full year of 2025. Additionally, we are extremely excited to present how these results have redefined our financial milestones and accelerated the time line for achievement of the same. The updated financial model, which we will present is the result of already strong partnerships with our lead customers having grown into deeply trust-rooted supplier customer partnership technical alliances. We ended our fourth quarter of 2025 with a company revenue of $440 million, an 11% quarter-over-quarter growth, 14% year-over-year growth, fulfilling our beginning of the year target of quarterly sequential growth. In addition to the top line, we achieved bottom line growth throughout the year. Fourth quarter net profit was $80 million or 18% net margin, up from 11% in Q1 '25, 13% in Q2 '25, 14% in Q3, indicative of a value-based growth being driven by technology mix enrichment. The revenue growth from Q1 to Q4 of 2025 was $82 million, of which there was a $40 million net profit drop down and almost 50%, to be exact 48.78% and this due to the high value of the incremental Photonics revenue. Revenue for the full year was $1.566 billion, $130 million or 9% increase as compared to 2024 revenue. Now to review our 2025 revenue breakdown and discuss the key trends, please see Slides 5 and 6 as referenced. We achieved year-over-year growth across our key technology platforms, namely power management, image sensors and 300mm RFSOI on top of which record achievements and unprecedented growth of our market-leading optical transceiver offerings, silicon germanium and SiPho advanced platforms has propelled us into a favored and unique position, both driving our growth for 2026 and additionally, giving us the ability to redefine our financial model, which I will present at the end of my comments. RF infrastructure showed a 75% revenue increase, 2025 over 2024 being our fastest-growing application in '25 driven by hyperscaler rapid adoption of silicon photonics in 800G and 1.6T pluggable transceivers. Silicon germanium and silicon photonics revenues represented 27% of our corporate revenues were $421 million, up from $241 million or 17% in 2024. SiPho revenues alone were $228 million in 2025, up from $106 million in 2024. Specific to the fourth quarter, RF infrastructure revenues were 32% of corporate revenue, with SiPho having achieved $95 million or a $380 million annual run rate. Included in this number is some non-wafer NRE to enhance future developments for Gen+1 and Gen+2. As highlighted in our recent announcement with NVIDIA, the insatiable demand for compute bandwidth in both scale-up and scale-out architectures and Tower's exceptional ability to scale the capacity flawlessly in partnership with our customer has made 1.6 terabyte per second, the fastest-growing silicon photonics node in the industry to date, with Tower being by far the majority supplier of 1.6T silicon PICs. The partnership announced with NVIDIA as with all our direct module customers, underscores our commitment to deliver best-in-class technology and the manufacturing agility required to meet such an exceptional demand trajectory. In addition to Fab 3 Newport Beach, this past year, we successfully ramped silicon photonics production in Fab 9 San Antonio, Fab 7, Uozu, Japan, and are on track to ship the first production, a very large SiPho ramp in 2026 and from Fab 2 Migdal Haemek. Given an even stronger customer demand than was known at our last quarterly release, we have increased our CapEx plan for 2026 and with multiple customer requests to enter into capacity reservation agreements through 2028, enabling our customers to, in turn, give firm commitments to their customers having ensured their supply. For next-generation 400-gigabit per lane, we continue to make strong progress with heterogeneously integrated indium phosphide on silicon and other material systems. We are playing a key role, partnering with our lead customers to define the material systems that will be chosen, refining the flow and hence ensuring manufacturability readiness and immediate ramp capability upon 3.2T market introduction. We also see co-packaged optics as a substantially incremental opportunity for us in the coming years, as optics gets adopted and scale-up interconnects as well as XPU to high-bandwidth memory interconnects that are today largely copper. In Q4 '25, we announced the expansion of our mature 300 millimeter wafer bonding technology to enable wafer to wafer integration of silicon photonics ICs and silicon germanium electrical ICs. In addition, we continue to work with several customers on dense wavelength division multiplexing laser sources, which are a critical component of many CPO implementations and can significantly expand our served optical market by now including the laser source. Beyond optical transceivers, our silicon photonics platform continues to be the technology of choice for physical AI applications, particularly frequency modulated continuous wave LIDAR. Ahead of CES, 2 of our FMCW LIDAR partners, AVA and LightIC publicly announced their collaboration with us in bringing to market disruptive products. The proven robustness of our silicon photonics platform supported by many tens of thousands of high-yielding, high-quality wafers ship to date is enabling silicon photonics to capture growing share in the LIDAR market, unlocking new automotive and robotics opportunities. Our silicon germanium platform delivered strong growth year-over-year in 2025 of 43%, remaining the optimal platform solution for low-power, low-latency, high-performance components such as drivers, trans-impedance amplifiers for pluggables, LPOs and active copper and active optical cables. Alongside our silicon photonics production, our silicon germanium platform is now running in high volumes across Fab 3 Newport Beach, Fab 9 San Antonio, Fab 2 Migdal Haemek, and we have shipped 300 millimeter prototypes from Fab 7 in Uozu. RF mobile represented 23% of our 2025 corporate revenue and 24% of our Q4 25 revenues. 300mm RFSOI was up 5.5%, while the RF mobile as a whole was down 15% year-over-year. Those are primarily due to our proactively working with our customer partners to responsibly reduce exposure to lower margin controller offerings in favor of higher-value optical and RF mix in the fabs and also influenced with the front-end module market shift from 200 millimeter to the higher digital content better served with more advanced nodes in 300 millimeter. Our latest technology, which we presented last quarter, with substantial improvement of our [indiscernible] relative to the competition and reduced layer count, therefore, higher overall value per customer dollar continues to see robust customer adoption. Lead customers have recognized it as best-in-class and are preparing to ramp to high volumes. Across the board, we continue to see strong design win momentum that positions our 300mm RFSOI platform for sustained secular growth. In 2025, we achieved major wins, namely 3 of the top 4 Tier 1 RF front-end module providers. One has begun production with all planning for strong ramp in 2027 towards achieving appreciable revenue volumes in 2028. Power Management grew 20% year-over-year, demonstrating strong year-over-year revenue growth in both 200 millimeter and 300 millimeter offering, representing 16% of our 2025 corporate revenues and 15% of our Q4 '25 revenues. In 300 millimeter, this includes the ramp of the Tier 1 handset envelope tracker previously announced, which is expected to continue to gain share in the years to come. Overall, our revenue growth in 300 millimeter power has significantly outpaced the rate of growth for both the power market as well as the mobile handset market, demonstrating the strength of our offering and share gains in this significant space. Sensors and Displays grew 10% year-over-year, representing 16% of our 2025 corporate revenue, 15% of the fourth quarter revenue. We have seen strength and continue to see strength in the machine vision market with new advanced products ramping to production alongside existing products that continue to gain share. We also expect our first ramp in the AI -- I'm sorry, in the AR display segment with our silicon back plane for OLED on silicon, which has started production this past quarter. We are tracking this first adoption and its overall market carefully and with optimism as it may have significant value for Tower in the following years. Mixed signal CMOS represented 7% and Discrete represented 11% of our 2025 corporate revenues. Year-on-year, we've seen decreases of 18% and 14%, respectively, supporting our value-driven growth strategy, allowing additional capacity for the higher margin and the highest margin platform to replace these 2 application sets. Regarding capacity expansion. During our previous earnings release in November '25, we announced an increase of investment for silicon photonics and silicon germanium growth targeting a tripling of SiPho capacity against our targeted Q4 '25 silicon photonics actual shipments having stated a target that this would be online to begin silicon starts in the second half of 2026. Due to continued growth in demand, we are announcing today additional CapEx investment of $270 million on top of the previously announced $650 million capacity expansion plan. This total capacity is targeted to yield capacity growth greater than 5x of the actual fourth quarter monthly wafer shipments -- silicon photonics wafer shipments to be compared to the 3x target that we gave during the Q3 public release. And over 70% of the total SiPho capacity is either presently reserved or in the process of being reserved through 2028, firmly backed with customer prepayment. For the fourth quarter, utilization rates were Fab 2 operated at about 60% utilization as we are now in the final stages of silicon germanium and silicon photonics capacity qualification for a variety of flows. Fab 3 maintained our model full utilization of 85% and still adding capacity for increasing silicon photonics capability. Fab 5 was a 75% utilization. Fab 7 was fully utilized, well above our 85% utilization model. Fab 9 was at 65% utilization, presently in the silicon photonics and silicon germanium ramp. As stated in our press release, Intel has expressed its intention not to perform under the September '23 Fab 11X agreement. We are presently in a mediation process. All flows, which have been transferred or are in the process of being transferred to Fab 11X were originally qualified in our Japanese 300 millimeter factory Fab 7. Customers are being redirected to be supported by this fab in Japan. For guidance, we guide our first quarter of 2026 midrange revenue to be $412 million plus/minus 5%, representing a 15% increase as compared to the start of 2025. We target quarter-over-quarter revenue and profitability growth throughout 2026. Based upon the thriving corporate ecosystem we've developed intertwined with deeply trusted customer partner alliances, we are pleased to provide a revised financial model. This new model demonstrates our value-driven growth strategy. Please refer to Slide 7. First, the assumptions. Beyond the $920 million CapEx plans that have been released, no additional CapEx, clean room space or otherwise additional monies are required to achieve this model. This model is based on utilizing Tower-owned capacity at an 85% utilization level. Intel Fab 11X is not included in this model. Revenue, $2.84 billion, which will create 39.4% gross margin, 31.7% operating margin, a 7.7 point drop from gross to operating margin, demonstrating a highly efficient business and if not the very best, certainly among the best in our industry. Such efficiency is seen in more than just margin dollars. It is reflective to the speed of decision-making and execution. Speed is a sustainable differentiator. Net profit is $750 million or 26.4% net profit margins. All tools and customer qualifications are planned to be fully completed within 2026. Hence, and most importantly, we target to achieve this model in the calendar year 2028. Now I'd like to turn the call to our CFO, Oren Shirazi. Oren, please.