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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 Conflict Minerals: Total 3TG Smelters & Refiners by Year

Conflict Minerals (Form SD): Total 3TG Smelters & Refiners Identified in Supply Chain

Lumentum Conflict Minerals: Total 3TG Smelters & Refiners: 321 in FY2026, down 2.4% from a year earlier.

Latest, FY2026
321
Period ended Jun 30, 2026
Change on a year earlier
-2.4%
329 in FY2025
History
9 years
Since FY2018
Sources
9
Documents cited below

Where the FY2026 figure comes from

“After this RCOI review, 321 smelters were identified as Conflict Minerals smelters consistent with the smelter definitions agreed upon by industry and the audit protocols published by the RMI.”

Source: SEC Form SD EX-1.01 Conflict Minerals Report (2026 filing for CY2025, filed 2026-06-01) ↗

Annual conflict minerals supply chain due diligence across Gold, Tantalum, Tin, and Tungsten (3TG).

Annual history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedConflict Minerals (Form SD): Total 3TG Smelters & Refiners Identified in Supply ChainYear on yearSource
FY2026Jun 30, 2026321-2.4%SEC Form SD EX-1.01 Conflict Minerals Report (2026 filing for CY2025, filed 2026-06-01) ↗
FY2025Jun 30, 2025329+14.6%SEC Form SD EX-1.01 Conflict Minerals Report (2025 filing for CY2024, filed 2025-05-30) ↗
FY2024Jun 30, 2024287-13.8%SEC Form SD EX-1.01 Conflict Minerals Report (2024 filing for CY2023, filed 2024-05-31) ↗
FY2023Jun 30, 2023333+2.8%SEC Form SD EX-1.01 Conflict Minerals Report (2023 filing for CY2022, filed 2023-05-31) ↗
FY2022Jun 30, 2022324+5.2%SEC Form SD EX-1.01 Conflict Minerals Report (2022 filing for CY2021, filed 2022-05-31) ↗
FY2021Jun 30, 2021308+2.3%SEC Form SD EX-1.01 Conflict Minerals Report (2021 filing for CY2020, filed 2021-05-28) ↗
FY2020Jun 30, 2020301-4.1%SEC Form SD EX-1.01 Conflict Minerals Report (2020 filing for CY2019, filed 2020-05-29) ↗
FY2019Jun 30, 2019314-1.6%SEC Form SD EX-1.01 Conflict Minerals Report (2019 filing for CY2018, filed 2019-05-31) ↗
FY2018Jun 30, 2018319–SEC Form SD EX-1.01 Conflict Minerals Report (2018 filing for CY2017, filed 2018-05-31) ↗

Breakdown

What makes up conflict Minerals: Total 3TG Smelters & Refiners

Cite this data

StockData. (2026). Lumentum Conflict Minerals: Total 3TG Smelters & Refiners, annual FY2018–FY2026 [Data set]. Compiled from Lumentum SEC filings and investor materials. https://stockdatahq.com/stocks/lite/kpis/sd-smelters-total

See every metric in the Lumentum KPI table. Data updated Nov 2, 2026.