Arthur J. Gallagher & Co.
- AJG ยท NYSE
- Insurance Agents, Brokers & Service
- Rolling Meadows, IL
- 72,000 employees
- CIK 0000354190
Updated from SEC filings through
Top things to know
Executives
- J. Patrick Gallagher Jr CEO 4, 2026-09-10
- Douglas K. Howell VP & Chief Financial Officer 4, 2026-06-24
- Kyle Graham Koreyva Chief Accounting Officer 3/A, 2026-10-08
- Patrick Murphy Gallagher Chief Operating Officer 4, 2026-09-10
- Scott R. Hudson Vice President 4, 2026-09-04
- Kyle G. Koreyva Controller and Chief Accounting Officer 8-K, 2026-08-27
Arthur J. Gallagher & Co. is a U.S. public company in insurance agents, brokers & service (SIC 6411), headquartered in Rolling Meadows, IL. It trades as AJG on NYSE. Revenue was $13.9B in the fiscal year ending December 31, 2025, +20.7% from the year before. It reported about 72,000 employees. J. Patrick Gallagher Jr is CEO.
Five-year financials
| Metric | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 |
|---|---|---|---|---|---|
| Revenue | $13.9B 10-K, 2026-02-17 | $11.6B 10-K, 2026-02-17 | $10.1B 10-K, 2026-02-17 | $8.6B 10-K, 2025-02-18 | $8.2B 10-K, 2024-02-09 |
| Operating income | Not on file | Not on file | Not on file | Not on file | Not on file |
| SG&A | Not on file | Not on file | Not on file | Not on file | Not on file |
| Net income | $1.5B 10-K, 2026-02-17 | $1.5B 10-K, 2026-02-17 | $970M 10-K, 2026-02-17 | $1.1B 10-K, 2025-02-18 | $907M 10-K, 2024-02-09 |
Annual figures from XBRL in each company's own filings. Click a figure to open the filing. SG&A marked derived is general and administrative plus selling and marketing.
Leadership and board
| Name | Title | Source |
|---|---|---|
| J. Patrick Gallagher Jr | CEO | 4, 2026-09-10 |
| Douglas K. Howell | VP & Chief Financial Officer | 4, 2026-06-24 |
| Kyle Graham Koreyva | Chief Accounting Officer | 3/A, 2026-10-08 |
| Patrick Murphy Gallagher | Chief Operating Officer | 4, 2026-09-10 |
| Scott R. Hudson | Vice President | 4, 2026-09-04 |
| Kyle G. Koreyva | Controller and Chief Accounting Officer | 8-K, 2026-08-27 |
| Christopher E. Mead Chief Marketing Officer at Gallagher | VICE PRESIDENT | 4, 2026-08-20 |
| Mark H. Bloom Global Chief Information Officer at Gallagher and Non Executive Board Member at Freddie Mac | Vice President | 4, 2026-08-18 |
| Thomas Joseph Gallagher | President | 4, 2026-07-06 |
| Michael Robert Pesch | Vice President | 4, 2026-07-06 |
| Vishal Jain | VICE PRESIDENT | 4, 2026-07-06 |
| William F. Ziebell CEO, Benefits and Human Resources Consulting Division at Gallagher | VICE PRESIDENT | 4, 2026-04-02 |
| Susan E. Pietrucha Chief Human Resources Officer at Gallagher | Chief Human Resources Officer | 4, 2026-03-17 |
| Thomas J. Gallagher | President | 10-K, 2026-02-17 |
| Richard C. Cary | Controller, CAO | 4, 2026-09-17 |
| Walter D. Bay | General Counsel | 4, 2026-08-26 |
What Arthur J. Gallagher & Co. does
Arthur J. Gallagher & Co. and its subsidiaries, collectively referred to herein as we, our, us or Gallagher, are engaged in providing insurance brokerage, reinsurance brokerage, consulting, and third-party property/casualty claims settlement and administration services to entities and individuals around the world. We believe that our major strength is our ability to deliver comprehensively structured insurance, reinsurance and risk management solutions, superior claim outcomes and comprehensive consulting services to our clients.
Item 1. Business, 10-K for the year ending December 31, 2025
Shares and governance
| Shares outstanding | 256.4 million (as of October 30, 2026) | 10-Q, November 5, 2026 |
|---|---|---|
| Public float | $71.1B (as of June 30, 2025) | 10-K, February 17, 2026 |
| Reportable segments | 3 (period ending September 30, 2026) | 10-Q, November 5, 2026 |
| Latest proxy statement | Meeting May 12, 2026 (filed March 23, 2026) | DEF 14A, March 23, 2026 |
| Auditor | Ernst & Young LLP (Chicago, Illinois) | Latest 10-K |
Insider trades
Open-market buys and sales by officers and directors, from Forms 4 and 5. One row per filing.
| Date | Insider | Trade | Shares | Value | Source |
|---|---|---|---|---|---|
| November 4, 2026 | William F. Ziebell VICE PRESIDENT | Sale | 23,510 | $6.7M | Form 4, November 5, 2026 |
| November 2, 2026 | Douglas K. Howell VP & Chief Financial Officer | Sale | 30,996 | $8.5M | Form 4, November 4, 2026 |
| November 2, 2026 | Christopher E. Mead VICE PRESIDENT | Sale | 7,590 | $2.1M | Form 4, November 4, 2026 |
| September 15, 2026 | Richard C. Cary Controller, CAO | Sale | 1,000 | $253K | Form 4, September 17, 2026 |
| September 2, 2026 | Scott R. Hudson Vice President | Sale | 12,000 | $3.2M | Form 4, September 4, 2026 |
| August 24, 2026 | Walter D. Bay General Counsel | Sale | 12,000 | $3.2M | Form 4, August 26, 2026 |
| August 19, 2026 | Christopher E. Mead VICE PRESIDENT | Sale | 3,500 | $900K | Form 4, August 20, 2026 |
| June 2, 2026 | Richard C. Cary Controller, CAO | Sale | 3,000 | $618K | Form 4, June 2, 2026 |
Recent 8-K events
- 8-K filed 2026-10-29
- Item 2.02 Results of operations and financial condition (earnings release)
- Item 7.01 Regulation FD disclosure
- 8-K filed 2026-08-27
- Item 5.02 Departure or appointment of directors or officers; compensation
- 8-K filed 2026-07-30
- Item 2.02 Results of operations and financial condition (earnings release)
- Item 7.01 Regulation FD disclosure
- 8-K filed 2026-07-29
- Item 8.01 Other events
- 8-K filed 2026-06-17
- Item 7.01 Regulation FD disclosure
- 8-K filed 2026-05-13
- Item 5.07 Submission of matters to a vote of security holders
- 8-K filed 2026-04-30
- Item 2.02 Results of operations and financial condition (earnings release)
- Item 7.01 Regulation FD disclosure
- 8-K filed 2026-03-17
- Item 7.01 Regulation FD disclosure
- 8-K filed 2026-03-12
- Item 5.02 Departure or appointment of directors or officers; compensation
- 8-K filed 2026-01-29
- Item 2.02 Results of operations and financial condition (earnings release)
- Item 7.01 Regulation FD disclosure
Frequently asked questions about Arthur J. Gallagher & Co.
- What does Arthur J. Gallagher & Co. do?
- In its own words, from Item 1 of its 10-K: "Arthur J. Gallagher & Co. and its subsidiaries, collectively referred to herein as we, our, us or Gallagher, are engaged in providing insurance brokerage, reinsurance brokerage, consulting, and third-party property/casualty claims settlement and administration services to entities and individuals around the world. We believe that our major strength is our ability to deliver comprehensively structured insurance, reinsurance and risk management solutions, superior claim outcomes and comprehensive consulting services to our clients."
- What is Arthur J. Gallagher & Co.'s revenue?
- $13.9B for the fiscal year ending December 31, 2025, from its 10-K filed February 17, 2026.
- Is Arthur J. Gallagher & Co. profitable?
- Arthur J. Gallagher & Co. reported net income of $1.5B for the fiscal year ending December 31, 2025.
- How many employees does Arthur J. Gallagher & Co. have?
- About 72,000 as of December 31, 2025, as stated in its annual report.
- Who is the CEO of Arthur J. Gallagher & Co.?
- J. Patrick Gallagher Jr, CEO, as named in a 4 filed September 10, 2026.
- Who is the CFO of Arthur J. Gallagher & Co.?
- Douglas K. Howell, VP & Chief Financial Officer, as named in a 4 filed June 24, 2026.
- Where is Arthur J. Gallagher & Co. headquartered?
- Rolling Meadows, IL.
- What is Arthur J. Gallagher & Co.'s stock ticker?
- AJG on NYSE.
- What industry is Arthur J. Gallagher & Co. in?
- Insurance Agents, Brokers & Service, SIC code 6411.
- What is Arthur J. Gallagher & Co.'s website?
- ajg.com. Investor relations: https://investor.ajg.com/.
- When does Arthur J. Gallagher & Co. report earnings next?
- January 28, 2027. Source: estimate_8k_pattern.
- Is Arthur J. Gallagher & Co. a public company?
- Yes. Arthur J. Gallagher & Co. files with the SEC under CIK 0000354190 and trades as AJG.
- Who audits Arthur J. Gallagher & Co.?
- Ernst & Young LLP, Chicago, Illinois, as named in its latest annual report (10-K).
- How many shares of Arthur J. Gallagher & Co. are outstanding?
- 256.4 million shares as of October 30, 2026, from its 10-Q filed November 5, 2026.
- What is Arthur J. Gallagher & Co.'s public float?
- $71.1B as of June 30, 2025, as reported on the cover of its 10-K filed February 17, 2026.
- How many business segments does Arthur J. Gallagher & Co. report?
- 3 reportable segments for the period ending September 30, 2026, from its 10-Q filed November 5, 2026.
- When is Arthur J. Gallagher & Co.'s annual shareholder meeting?
- May 12, 2026, per its proxy statement (DEF 14A) filed March 23, 2026.
- Have Arthur J. Gallagher & Co. insiders traded stock recently?
- Since August 21, 2025, officers and directors reported 20 open-market sales worth about $52.1M and 1 purchase worth about $988K on Forms 4 and 5. The most recent: William F. Ziebell (VICE PRESIDENT) sold 23,510 shares on November 4, 2026.