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Aon10-K: Market share loss

Aon names Marsh McLennan, WTW, and Gallagher as key competitors in a highly fragmented market.

What happened

Aon operates in a highly competitive environment, facing pressure on service, price, and technology from traditional global brokers. This creates a need to differentiate services, innovate faster, and protect market share against well-resourced rivals.

Source

SEC EDGARFeb 13, 2026

Annual report (Form 10-K)

Aon 10-K for FY2025

Filing excerpt

Our business operates in a highly competitive and fragmented environment. We compete with numerous other global insurance brokers and consulting companies, including, among others, Marsh McLennan, Willis Towers Watson, Arthur J Gallagher & Company, and Lockton Companies, Inc., as well as numerous other global, regional, and local firms in almost every area of our business.

sec.gov/Archives/edgar/data/315293/000162828026008116/aon-20251231.htmRead the full source

Other signals in this filing (11)

Extracted by Autobound

From the Signal API record
Signal
10-K: Market share loss

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

Period
FY2025
Fiscal year end
12/31
Filed
Feb 13, 2026

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The full record

From the Signal API record

Details

CIK
315293
Accession number
0001628280-26-008116
Filing year
2026
Why it matters
Urgency to improve

Topics and mentions

Competitors

  • Marsh McLennan
  • Willis Towers Watson
  • Arthur J Gallagher & Company
  • Lockton Companies
  • Inc.

Competitors named

  • Marsh McLennan
  • Willis Towers Watson
  • Arthur J Gallagher & Company
  • Lockton Companies, Inc.

Extraction

Confidence
High
Relevance
90%
Sentiment
Negative
Detected
Feb 17, 2026
signal_type
sec-10k
signal_subtype
marketShareLoss

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The API returns more than this page shows

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/da8f0486-6616-45b9-8a99-d41f2e5b289c returns this record as JSON. POST /v1/companies/enrich returns every signal for aon.com.

{
  "signal_id": "da8f0486-6616-45b9-8a99-d41f2e5b289c",
  "signal_type": "sec-10k",
  "signal_subtype": "marketShareLoss",
  "detected_at": "2026-02-17T06:30:05.073+00:00",
  "company": {
    "name": "Aon",
    "domain": "aon.com"
  },
  "data": {
    "detail": "Aon operates in a highly competitive environment, facing pressure on service, price, and technology from traditional global brokers. This creates a need to differentiate services, innovate faster, and protect market share against well-resourced rivals.",
    "summary": "Aon names Marsh McLennan, WTW, and Gallagher as key competitors in a highly fragmented market.",
    "excerpts": "Our business operates in a highly competitive and fragmented environment. We compete with numerous other global insurance brokers and consulting companies, including, among others, Marsh McLennan, Willis Towers Watson, Arthur J Gallagher & Company, and Lockton Companies, Inc., as well as numerous other global, regional, and local firms in almost every area of our business.",
    "relevance": 0.9,
    "sentiment": "negative",
    "confidence": "high",
    "source_url": "https://www.sec.gov/Archives/edgar/data/315293/000162828026008116/aon-20251231.htm",
    "filing_date": "2026-02-13",
    "filing_year": 2026,
    "fiscal_year_end": "12/31",
    "sales_relevance": "Urgency to improve",
    "signal_category": "market",
    "competitors_mentioned": [
      "Marsh McLennan",
      "Willis Towers Watson",
      "Arthur J Gallagher & Company",
      "Lockton Companies, Inc."
    ]
  }
}

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