Welcome to our dedicated page for Tower Semiconductor SEC filings (Ticker: TSEM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Tower Semiconductor Ltd (TSEM) files reports and disclosures with the U.S. Securities and Exchange Commission as a foreign private issuer, primarily through Form 20-F and Form 6-K filings. These documents provide details on the company’s operations as a pure-play specialty semiconductor foundry, its analog and mixed-signal process platforms, and its activities in markets such as consumer, industrial, automotive, mobile, infrastructure, medical, and aerospace and defense.
On this page, users can review Tower Semiconductor’s Form 6-K current reports, which frequently include press releases about technology collaborations, new process offerings, investor conference participation, and financial results. Examples include announcements of Silicon Photonics (SiPho) and SiGe BiCMOS 3D-IC integration, power management platforms on 65nm BCD technology, high-speed imaging solutions, and industry awards recognizing its RF SOI technology and supply chain support.
Annual reports on Form 20-F and related filings typically describe the company’s foundry business model, manufacturing footprint in Israel, the United States, Japan, and Italy, and its range of process platforms such as SiGe, BiCMOS, mixed-signal/CMOS, RF CMOS, CMOS sensor, non-imaging sensors, displays, integrated power management (BCD and 700V), photonics, and MEMS. These filings also discuss risks, forward-looking statements, and other regulatory disclosures.
Stock Titan’s SEC filings page provides real-time access to Tower Semiconductor’s EDGAR submissions, along with AI-powered summaries that can help interpret lengthy documents. Users can quickly locate quarterly and annual reports, technology-related 6-Ks, and other regulatory materials, and use AI-generated insights to understand how Tower Semiconductor’s foundry platforms, capacity arrangements, and market focus are presented in its official filings.
Tower Semiconductor plans a major expansion of its 300mm manufacturing capacity in Japan as part of a strategic restructuring of its TPSCo joint venture with Nuvoton. Tower will take full ownership of the 300mm Fab 7 through a wholly owned Japanese subsidiary, while Nuvoton’s subsidiary will own the 200mm Fab 5.
The companies will sign mutual long-term supply agreements so existing Tower customers at Fab 5 and Nuvoton customers at Fab 7 continue to receive uninterrupted supply. Subject to customary conditions and regulatory approvals, the transaction is targeted to close on April 1, 2027.
Tower targets combined capacity at its existing 300mm facility in Uozu and an intended adjacent expansion to reach four times current 300mm capacity. The expansion, supported by an option to buy the Fab 7 building and land and contingent METI-backed subsidy for adjacent land, is intended to scale its optical and photonics platforms while keeping the fab cash-from-operations positive during the build-out.
Tower Semiconductor reported a framework agreement with Nuvoton’s subsidiary NTCJ to strategically restructure their joint venture TPSCo. Tower currently owns 51% of TPSCo, which operates a 12‑inch fab in Uozu and an 8‑inch fab in Tonami, Japan.
Upon closing, Tower will gain full ownership and operational control of TPSCo’s 12‑inch fab and foundry business. The 8‑inch fab and foundry business will remain in TPSCo, which will become a wholly owned NTCJ subsidiary, with NTCJ paying $25 million to Tower at closing.
The parties plan to maintain uninterrupted customer support, operations, development programs, and employee stability, and will provide production services to each other to support existing products. The transaction is intended to better align assets with each company’s long‑term strategy and strengthen competitiveness, and is expected to close on April 1, 2027, subject to customary conditions and regulatory approvals.
Tower Semiconductor reported a technology milestone with Coherent, demonstrating 400 Gbps per lane data transmission using a silicon Mach-Zehnder modulator built on Tower’s production-ready silicon photonics (SiPho) process. The test achieved a clear open eye at 420 Gb/s PAM4, using Coherent’s InP continuous‑wave high‑power laser.
This performance is aimed at next-generation 3.2 Tbps optical transceivers and supports both pluggable modules and Co-Packaged Optics for datacenter connections, especially those driven by AI workloads. The announcement underscores Tower’s strategy to leverage existing multi-fab SiPho capacity while it also develops more advanced material systems with Coherent as a key design partner.
Tower Semiconductor announced a new third-generation BCD power management platform featuring high-performance LDMOS technology aimed at tackling the rising power demands of AI data centers and advanced mobile power chips. The platform targets high-current applications, improving power delivery efficiency, reducing heat, and shrinking die size for power management chips.
The technology is designed for Monolithic Smart Power Stage and DrMOS power stages, in a market estimated at about $2.5 billion and projected to exceed $4.7 billion by 2031. Tower is pairing this with its established silicon photonics presence in AI data centers to broaden its role from optical interconnects to efficient AI processor power delivery. The company will showcase these advances at APEC 2026 in San Antonio.
Tower Semiconductor filed a Form 6-K highlighting a new collaboration with Oriole Networks to advance AI infrastructure using nanosecond optical circuit switching. Oriole’s PRISM and PRISM Ultra networking platforms will be built on Tower’s mature silicon photonics platform to deliver ultra-low, deterministic-latency networking for large AI clusters.
The partnership targets the rapidly expanding AI networking market, which Dell’Oro and LightCounting expect to surpass $80 billion by 2030. Tower’s platform integrates lasers, amplification, switching, high-speed modulation, and detection on a single silicon photonics platform, supporting Oriole’s edge-switching architecture for high-radix, high-bandwidth AI networks.
Tower Semiconductor reported that it will participate in OFC 2026, the Optical Fiber Communication Conference and Exhibition, taking place March 17–19, 2026 at the Los Angeles Convention Center, booth #2221. Company representatives will discuss its current and future silicon photonics roadmap.
The company will showcase its silicon photonics platform used for optical transceivers in Scale-Out and telecom, as well as emerging applications such as co-packaged optics, DWDM lasers, optical circuit switching, FMCW LiDARs for Physical AI, and quantum computing. Tower will also highlight its Silicon Germanium BiCMOS offerings that, together with its silicon photonics platform, target higher bandwidth, lower latency and lower power needs of next-generation AI infrastructure.
Tower Semiconductor Ltd. reported solid full-year 2025 growth. Revenue rose to $1,566,104 thousand from $1,436,122 thousand in 2024, mainly from higher wafer shipments and the 300mm Agrate, Italy facility running for a full year. Gross profit increased to $363,854 thousand, keeping margins broadly stable.
Net profit attributable to the company grew to $220,470 thousand from $207,864 thousand, with basic earnings per share up to $1.97 from $1.87. Financing income, net, improved to $56,738 thousand while other expense, net, declined to $10,527 thousand, partly offset by higher income tax expense of $21,569 thousand.
Operating cash flow was strong at $395,482 thousand, funding heavy investments in property and equipment of $444,425 thousand. Cash and cash equivalents ended at $235,369 thousand, and total shareholders’ equity increased to $2,904,583 thousand, reflecting retained earnings growth and ongoing stock-based compensation activity.
Tower Semiconductor reported a new partnership with Salience Labs to manufacture photonic integrated circuit–based optical circuit switches for next-generation AI data centers. The collaboration uses Tower’s silicon photonics platforms, including PH18DA with integrated lasers and TPS45PH with low-loss nitride waveguides.
The project is moving from development into a pre-production phase, aiming at product readiness and large-scale deployment in AI data-center networks. Optical circuit switching is positioned as an alternative to electronic packet switching, targeting higher bandwidth, lower latency and reduced power. Dell’Oro Group estimates AI back-end data-center switch spending will exceed $100 billion by 2030.
Tower Semiconductor filed a Form 6-K describing an expanded strategic collaboration with Canadian quantum computing company Xanadu to advance photonic quantum hardware. The partners are co-developing advanced silicon photonics for fault-tolerant quantum computers using Tower’s high-volume silicon photonics platform.
The companies have already completed multiple joint design tapeouts and have co-engineered a custom material stack tailored to Xanadu’s architecture. This stack is intended to support scalability and performance as quantum systems grow in complexity, helping move Xanadu’s hardware from concept to prototype and demonstrator systems in a manufacturable environment.
Current work focuses on optimizing critical components, including ultra-low loss silicon nitride and integrated photodiodes, on Tower’s standard product flows. Tower highlights that this collaboration underscores the breadth of its silicon photonics platform for quantum computing, data centers, telecom, automotive and other advanced applications as the industry progresses toward commercial-scale photonic quantum computing systems.
Tower Semiconductor filed a report highlighting a strategic technology milestone with Scintil Photonics. The companies announced availability of the world’s first heterogeneously integrated Dense Wavelength Division Multiplexing laser sources for AI infrastructure, built on Scintil’s SHIP™ platform and Tower’s high-volume silicon photonics process.
The new LEAF Light™ integrated laser source targets co-packaged optics in next-generation AI data centers, aiming to deliver higher bandwidth density, lower energy per bit, and ultra-low latency for scale-up GPU networks. SHIP™ has been validated on Tower’s silicon photonics lines, positioning both companies to support customer evaluations and potential high-volume hyperscale deployments.
Tower emphasizes its multi-site global manufacturing footprint, including silicon photonics capacity across Israel, the U.S., Japan, and a shared 300mm facility in Italy, as a foundation for resilient supply and scaling this photonics offering for AI infrastructure customers.