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American Tower10-Q: Major contract loss

In arbitration with AT&T Mexico over contract representing ~$300M in annual revenue

What happened

A dispute with major customer AT&T Mexico, which represented $300 million in 2025 revenue, is in arbitration. The customer is challenging lease amounts and seeking rent abatement, creating significant revenue uncertainty and risk for a key international market.

Source

SEC EDGARApr 28, 2026

Quarterly report (Form 10-Q)

American Tower 10-Q

Filing excerpt

We are currently engaged in an Arbitration with AT&T Mexico. AT&T Mexico, which represented approximately $300 million of tenant revenue in 2025, is challenging the calculation of the monthly lease amount established under the MLA, as well as certain other provisions of the MLA, seeking rent abatement both retroactively and prospectively, and had been withholding tower rents since the start of 2025.

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: Major contract loss

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

Numbers

Dollar figure
$300M (Annual tenant revenue from AT&T Mexico in 2025)

Details

CIK
1053507
Accession number
0001053507-26-000099
Timeframe
Current year
Filing year
2026
Fiscal year
0
Why it matters
Urgency to improve
Signal category
Revenue

Topics and mentions

Regions named

  • Mexico

Extraction

Confidence
High
Relevance
90%
Sentiment
Negative
Detected
May 5, 2026
signal_type
sec-10q
signal_subtype
majorContractLoss

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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/09f48390-0819-4abc-8195-7d7cc1b58f70 returns this record as JSON. POST /v1/companies/enrich returns every signal for americantower.com.

{
  "signal_id": "09f48390-0819-4abc-8195-7d7cc1b58f70",
  "signal_type": "sec-10q",
  "signal_subtype": "majorContractLoss",
  "detected_at": "2026-05-05T08:48:22.864+00:00",
  "company": {
    "name": "American Tower",
    "domain": "americantower.com"
  },
  "data": {
    "detail": "A dispute with major customer AT&T Mexico, which represented $300 million in 2025 revenue, is in arbitration. The customer is challenging lease amounts and seeking rent abatement, creating significant revenue uncertainty and risk for a key international market.",
    "metrics": {
      "timeframe": "current_year",
      "dollar_context": "Annual tenant revenue from AT&T Mexico in 2025",
      "dollar_millions": 300
    },
    "summary": "In arbitration with AT&T Mexico over contract representing ~$300M in annual revenue",
    "excerpts": "We are currently engaged in an Arbitration with AT&T Mexico. AT&T Mexico, which represented approximately $300 million of tenant revenue in 2025, is challenging the calculation of the monthly lease amount established under the MLA, as well as certain other provisions of the MLA, seeking rent abatement both retroactively and prospectively, and had been withholding tower rents since the start of 2025.",
    "relevance": 0.9,
    "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": "Urgency to improve",
    "signal_category": "revenue",
    "regions_mentioned": [
      "Mexico"
    ]
  }
}

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