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American Tower10-Q: Customer concentration

High customer concentration risk materializing with major disputes involving AT&T and DISH.

What happened

The company's stated risk of deriving a substantial portion of revenue from a small number of customers is actively playing out, with two major customers now in default or legal disputes. This threatens cash flow and liquidity, highlighting a critical need to diversify or better manage customer relationships.

Source

SEC EDGARApr 28, 2026

Quarterly report (Form 10-Q)

American Tower 10-Q

Filing excerpt

we derive a substantial portion of our current and projected future revenue from a small number of customers and, consequently, a failure by a significant customer to perform its contractual obligations to us could adversely affect our cash flow and liquidity.

sec.gov/Archives/edgar/data/1053507/000105350726000099/amt-20260331.htmRead the full source

Other signals in this filing (10)

Extracted by Autobound

From the Signal API record
Signal
10-Q: Customer concentration

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

Fiscal year end
03/31
Filed
Apr 28, 2026

More 10-Q signals at other companies

The full record

From the Signal API record

Details

CIK
1053507
Accession number
0001053507-26-000099
Timeframe
Current year
Filing year
2026
Fiscal year
0
Why it matters
Diversification strategy
Signal category
Market

Extraction

Confidence
High
Relevance
80%
Sentiment
Negative
Detected
May 5, 2026
signal_type
sec-10q
signal_subtype
customerConcentration

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The API returns more than this page shows

This page shows a preview. The full sec-10q 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/eb92af83-8323-425c-861d-da76425f747e returns this record as JSON. POST /v1/companies/enrich returns every signal for americantower.com.

{
  "signal_id": "eb92af83-8323-425c-861d-da76425f747e",
  "signal_type": "sec-10q",
  "signal_subtype": "customerConcentration",
  "detected_at": "2026-05-05T08:48:22.612+00:00",
  "company": {
    "name": "American Tower",
    "domain": "americantower.com"
  },
  "data": {
    "detail": "The company's stated risk of deriving a substantial portion of revenue from a small number of customers is actively playing out, with two major customers now in default or legal disputes. This threatens cash flow and liquidity, highlighting a critical need to diversify or better manage customer relationships.",
    "metrics": {
      "timeframe": "current_year"
    },
    "summary": "High customer concentration risk materializing with major disputes involving AT&T and DISH.",
    "excerpts": "we derive a substantial portion of our current and projected future revenue from a small number of customers and, consequently, a failure by a significant customer to perform its contractual obligations to us could adversely affect our cash flow and liquidity.",
    "relevance": 0.8,
    "sentiment": "negative",
    "confidence": "high",
    "source_url": "https://www.sec.gov/Archives/edgar/data/1053507/000105350726000099/amt-20260331.htm",
    "filing_date": "2026-04-28",
    "filing_year": 2026,
    "fiscal_year": 0,
    "fiscal_year_end": "03/31",
    "sales_relevance": "Diversification strategy",
    "signal_category": "market"
  }
}

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