Lumentum Holdings Inc.
Close on Nov 2, 2026Market cap $61.39BP/E –Yield –
Lumentum Owned InP Wafer Fab & III-V Photonics Facility by Year
Owned InP Wafer Fab & III-V Photonics Facility: Caswell, United Kingdom (Thousand Sq. Ft.) (K sq ft)
Lumentum Owned InP Wafer Fab & III-V Photonics Facility: 183.0K sq ft in FY2026, unchanged from a year earlier.
Where the FY2026 figure comes from
“As of June 27, 2026, our leased and owned properties in total are approximately 3,100,000 square feet, of which we own approximately 2,136,000 square feet, including the 1,173,000 square feet manufacturing sites in Thailand, the 183,000 square feet manufacturing site in the United Kingdom, the 148,000 square feet manufacturing site in Greensboro, North Carolina, the 124,000 square feet on the San Jose campus, the 472,000 square feet manufacturing and R&D site in Japan, and the 36,000 square feet manufacturing and R&D sites in Slovenia.”
Source: SEC Form 10-K (FY2026, filed 2026-08-17, 0001628280-26-057358) ↗
Reported in SEC Form 10-K Item 2.
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | Owned InP Wafer Fab & III-V Photonics Facility: Caswell, United Kingdom (Thousand Sq. Ft.) (K sq ft) | Year on year | Source |
|---|---|---|---|---|
| FY2026 | Jun 30, 2026 | 183.0 | 0.0% | SEC Form 10-K (FY2026, filed 2026-08-17, 0001628280-26-057358) ↗ |
| FY2025 | Jun 30, 2025 | 183.0 | 0.0% | SEC Form 10-K (FY2025, filed 2025-08-19, 0001628280-25-040830) ↗ |
| FY2024 | Jun 30, 2024 | 183.0 | – | SEC Form 10-K (FY2024, filed 2024-08-21, 0001628280-24-038024) ↗ |
Cite this data
StockData. (2026). Lumentum Owned InP Wafer Fab & III-V Photonics Facility (K sq ft), annual FY2024–FY2026 [Data set]. Compiled from Lumentum SEC filings and investor materials. https://stockdatahq.com/stocks/lite/kpis/sqft-uk
See every metric in the Lumentum KPI table. Data updated Nov 2, 2026.