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Lumentum10-K: Supplier concentration

Facing supply disruptions and cost increases due to sole-source supplier dependency

What happened

The company relies on a limited number of specialized, sole-source suppliers, making it vulnerable to price hikes, shortages, and geopolitical actions like China's export controls on critical minerals which have already adversely affected operations.

Source

SEC EDGARAug 17, 2026

Annual report (Form 10-K)

Lumentum 10-K for FY2026

Filing excerpt

We purchase raw materials, packages and components from a limited number of suppliers, who are often small and specialized. Additionally, some of our suppliers are our sole sources for certain materials, equipment and components.

sec.gov/Archives/edgar/data/1633978/000162828026057358/lite-20260627.htmRead the full source

Other signals in this filing (11)

Extracted by Autobound

From the Signal API record
Signal
10-K: Supplier concentration

What this signalsFilings often name leadership changes, deals and spending plans.

Period
FY2026
Fiscal year end
06/27
Filed
Aug 17, 2026

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The full record

From the Signal API record

Details

CIK
1633978
Accession number
0001628280-26-057358
Timeframe
Current year
Filing year
2026
Why it matters
Risk management needed
Signal category
Market

Topics and mentions

Regions named

  • China
  • Japan

Extraction

Confidence
High
Relevance
80%
Sentiment
Negative
Detected
Aug 18, 2026
signal_type
sec-10k
signal_subtype
supplierConcentration

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This page shows a preview. The full sec-10k record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/50b0e000-2f48-4ee3-9522-2382d881eb89 returns this record as JSON. POST /v1/companies/enrich returns every signal for lumentum.com.

{
  "signal_id": "50b0e000-2f48-4ee3-9522-2382d881eb89",
  "signal_type": "sec-10k",
  "signal_subtype": "supplierConcentration",
  "detected_at": "2026-08-18T07:04:46.822+00:00",
  "company": {
    "name": "Lumentum",
    "domain": "lumentum.com"
  },
  "data": {
    "detail": "The company relies on a limited number of specialized, sole-source suppliers, making it vulnerable to price hikes, shortages, and geopolitical actions like China's export controls on critical minerals which have already adversely affected operations.",
    "metrics": {
      "timeframe": "current_year"
    },
    "summary": "Facing supply disruptions and cost increases due to sole-source supplier dependency",
    "excerpts": "We purchase raw materials, packages and components from a limited number of suppliers, who are often small and specialized. Additionally, some of our suppliers are our sole sources for certain materials, equipment and components.",
    "relevance": 0.8,
    "sentiment": "negative",
    "confidence": "high",
    "source_url": "https://www.sec.gov/Archives/edgar/data/1633978/000162828026057358/lite-20260627.htm",
    "filing_date": "2026-08-17",
    "filing_year": 2026,
    "fiscal_year_end": "06/27",
    "sales_relevance": "Risk management needed",
    "signal_category": "market",
    "regions_mentioned": [
      "China",
      "Japan"
    ]
  }
}

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