Lumentum Holdings Inc.

Lumentum Holdings Inc.

Core business

Lumentum is a global leader in optical and photonic technologies, supplying products for cloud data centers, AI/ML, telecommunications, consumer electronics, and industrial laser applications. The company operates as a single integrated enterprise with one reportable segment. Revenue is disaggregated by product type (Components vs. Systems) and by geography.

Product categories

• Components: semiconductor laser chips, laser sub-assemblies, line subsystems, and wavelength management systems. These components are supplied to cloud and data-center operators, AI infrastructure providers, and network equipment manufacturers (NEMs) for integration into customer systems.
• Systems: complete, stand-alone solutions including optical modules, optical circuit switches, and industrial lasers (short‑pulse solid‑state lasers and kilowatt‑class fiber lasers). Systems are self-contained and deployable within customer networks and environments.

End-market applications

• Cloud data centers and AI/ML infrastructure
• Networking and data-center interconnect (DCI)
• Telecommunications service provider networks (access, metro, long-haul, submarine)
• Enterprise storage, LAN/WAN, SAN
• Industrial lasers for precision material processing (semiconductor/microelectronics fabrication, EV/battery production, metal cutting/welding)
• Consumer electronics (laser emitters for 3D sensing)

Customers and revenue concentration

• Customer A: 26.6% of net revenue (fiscal year 2026)
• Customer B: 15.0% of net revenue (fiscal year 2026)
• Historical context: in fiscal years 2025 and 2024, Customer A and Customer B represented 15.4% & 16.0% and 18.9% & 11.4%, respectively.
• International customers accounted for 79.2% of net revenue in fiscal year 2026 (81.0% in 2025; 73.8% in 2024).

Workforce

• Approximately 13,757 full-time employees as of June 27, 2026
  • ~11,916 in manufacturing
  • ~1,085 in R&D
  • ~756 in SG&A
• About 1% of employees are represented under two national collective bargaining agreements in Slovenia and by two labor unions in China.

Geographical footprint and manufacturing

• Global presence across North America, Asia‑Pacific, and Europe
• Headquarters: San Jose, California (owned, about 124,000 sq ft)
• Total properties (leased and owned): about 3,100,000 sq ft; owned approximately 2,136,000 sq ft
• Major owned/operated and acquired sites:
  • 1,173,000 sq ft manufacturing site in Thailand
  • 183,000 sq ft manufacturing site in the United Kingdom
  • 148,000 sq ft manufacturing site in Greensboro, North Carolina (acquired March 2026)
  • 124,000 sq ft San Jose campus
  • 472,000 sq ft manufacturing and R&D site in Japan
  • 36,000 sq ft manufacturing and R&D sites in Slovenia
• Significant contract manufacturers in Thailand, Taiwan, Malaysia, and the Philippines

Recent actions (2024–2026):

• Acquired a Greensboro, NC manufacturing facility (March 2026)
• Sold two San Jose commercial real estate properties (March 2026)
• Sold Shenzhen facility land and building (March 2025)
• Purchased a wafer fab in Sagamihara, Japan (July 2024); lease was terminated as part of the purchase

Corporate history and acquisitions

• Spun off from JDS Uniphase Corporation (JDSU) in August 2015
• Acquisitions:
  • Oclaro, Inc. (2018)
  • NeoPhotonics Corporation and IPG Photonics’ telecom transmission product lines (2022)
  • Cloud Light Technology Limited (Cloud Light) (2023)

Regulatory and risk context

The company identifies exposure to international operations, supply chain constraints, tariffs and export controls, currency fluctuation, and cybersecurity among its risk factors.

Investor information

Primary corporate and investor materials are available at www.lumentum.com. SEC filings can be accessed at sec.gov.