Lumentum Holdings Inc.
LITENasdaqCommunications Equipment, NECFiscal year ends June 27
Financials through Q4 FY2026, quarter ended Jun 27, 2026Last filing: 10-K on Aug 17, 2026Score 8/30506% above fair value
$684.40−156.30 (-18.59%)
Close on Nov 2, 2026Market cap $61.39BP/E –Yield –
Lumentum Customer Concentration: Second Largest Customer Share by Year
Customer Concentration: Second Largest Customer (Customer B) Share of Net Revenue (%) (%)
Lumentum Customer Concentration: Second Largest Customer Share: 15.0% in FY2026, down 1.0 pts from a year earlier.
Latest, FY2026
15.0%
Period ended Jun 30, 2026
Change on a year earlier
-1.0 pts
16.0% in FY2025
History
9 years
Since FY2018
Sources
5
Documents cited below
Where the FY2026 figure comes from
Source: SEC Form 10-K (filed 2026-08-17) ↗
Reported in SEC Form 10-K & 10-Q XBRL.
Annual history
Hover a value to see the sentence it was read from; calculated values show their formula
| Period | Ended | Customer Concentration: Second Largest Customer (Customer B) Share of Net Revenue (%) (%) | Year on year | Source |
|---|---|---|---|---|
| FY2026 | Jun 30, 2026 | 15.0% | -1.0 pts | SEC Form 10-K (filed 2026-08-17) ↗ |
| FY2025 | Jun 30, 2025 | 16.0% | +4.6 pts | SEC Form 10-K (filed 2026-08-17) ↗ |
| FY2024 | Jun 30, 2024 | 11.4% | -0.7 pts | SEC Form 10-K (filed 2026-08-17) ↗ |
| FY2023 | Jun 30, 2023 | 12.1% | -16.6 pts | SEC Form 10-K (filed 2024-08-21) ↗ |
| FY2022 | Jun 30, 2022 | 28.7% | +18.6 pts | SEC Form 10-K (filed 2024-08-21) ↗ |
| FY2021 | Jun 30, 2021 | 10.1% | -3.1 pts | SEC Form 10-K (filed 2023-08-23) ↗ |
| FY2020 | Jun 30, 2020 | 13.2% | -2.0 pts | SEC Form 10-K (filed 2021-08-31) ↗ |
| FY2019 | Jun 30, 2019 | 15.2% | +4.2 pts | SEC Form 10-K (filed 2021-08-31) ↗ |
| FY2018 | Jun 30, 2018 | 11.0% | – | SEC Form 10-K (filed 2020-08-25) ↗ |
Cite this data
StockData. (2026). Lumentum Customer Concentration: Second Largest Customer Share (%), annual FY2018–FY2026 [Data set]. Compiled from Lumentum SEC filings and investor materials. https://stockdatahq.com/stocks/lite/kpis/cust-rev-pct-b
See every metric in the Lumentum KPI table. Data updated Nov 2, 2026.