As of November 6, 2026, Arthur J. Gallagher & Co. is a publicly traded company (NYSE: AJG); its largest reported holder is Vanguard, with 7.49% on Schedule 13G of April 29, 2026, then Fidelity (FMR) (7.2%). The largest insider holding is J. Patrick Gallagher Jr., the chief executive and a director, with 901,846.11 shares (0.35% of shares outstanding), per Form 4 of September 10, 2026 (Schedule 13G, April 29, 2026).
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Is Arthur J. Gallagher & Co. a real, registered company?
- Arthur J. Gallagher & Co. files with the SEC under CIK 354190 (its SEC filings).
- Its shares are listed under the ticker AJG on NYSE (SEC company record).
- Incorporated in Delaware; business address in Rolling Meadows, Illinois, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Arthur J. Gallagher & Co. in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Capital World Investors (filed 2026-08-12).
Who are Arthur J. Gallagher & Co.'s owners and officers?
Arthur J. Gallagher & Co.: incorporated in Delaware; business address in Rolling Meadows, Illinois; industry Insurance Agents, Brokers & Service (Schedule 13G/A, 2026-08-12).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-08-12 | Capital World Investors | 5% |
| Schedule 13G/A, 2026-08-06 | Fmr LLC | 7.2% |
| Schedule 13G/A, 2026-07-27 | Jpmorgan Chase & Co. | 5.5% |
| Schedule 13G, 2026-04-29 | Vanguard Capital Management | 7.49% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G, 2026-02-13 | Capital World Investors | 5% |
| Schedule 13G/A, 2025-10-31 | Jpmorgan Chase & Co. | 7.8% |
| Schedule 13G/A, 2025-07-16 | Blackrock, Inc. | 6.9% |
Questions about who owns Arthur J. Gallagher & Co.
Who owns Arthur J. Gallagher & Co.?
On this page, 5 holders' latest ownership filings report 5% or more of Arthur J. Gallagher & Co.: Vanguard Capital Management (7.49%, Schedule 13G, filed 2026-04-29), Fmr LLC (7.2%, Schedule 13G/A, filed 2026-08-06), Blackrock, Inc. (6.9%, Schedule 13G/A, filed 2025-07-16), Jpmorgan Chase & Co. (5.5%, Schedule 13G/A, filed 2026-07-27) and Capital World Investors (5%, Schedule 13G/A, filed 2026-08-12).
Who are the largest shareholders of Arthur J. Gallagher & Co.?
By the share each holder's latest filing reports, the largest holders of Arthur J. Gallagher & Co. on this page are Vanguard Capital Management (7.49%), Fmr LLC (7.2%) and Blackrock, Inc. (6.9%).
When did Vanguard Capital Management buy into Arthur J. Gallagher & Co.?
The filings give report dates, not purchase dates. The earliest filing from Vanguard Capital Management on this page is the Schedule 13G, filed 2026-04-29, reporting 7.49%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 8 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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What the Full Report on Arthur J. Gallagher & Co. covers
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Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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Which insiders own Arthur J. Gallagher & Co. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and a director: 901,846.11 shares (0.35% of shares outstanding), 128,447.97 held directly and 773,398.14 indirectly (Form 4, 2026-09-10).
- , the president: 634,929.17 shares (0.25% of shares outstanding), 323,743.03 held directly and 311,186.14 indirectly (Form 4, 2026-07-06).
- , the chief operating officer: 250,159.03 shares (0.10% of shares outstanding), 14,169.64 held directly and 235,989.39 indirectly (Form 4, 2026-09-10).
- , the chief financial officer and vice president: 96,617.454 shares (0.04% of shares outstanding), 92,961.323 held directly and 3,656.131 indirectly (Form 4, 2026-11-04).
- , the president: 90,673.47 shares (0.04% of shares outstanding), 90,262 held directly and 411.47 indirectly (Form 4, 2026-09-04).
Shares outstanding: 256,400,000 as of 2026-10-30, from the company's latest SEC cover page.
How much has Arthur J. Gallagher & Co. raised?
No fundraising or offering filing from Arthur J. Gallagher & Co. is on file with us.
Keep reading
More on Arthur J. Gallagher & Co. and the records around it.
Companies that share a holder
- JPMORGAN CHASE & CO. also filed stake reports on 116 other companies: LEVI STRAUSS & CO (Nov 2026), Warner Music Group Corp. (Nov 2026), Andersen Group Inc. (Oct 2026)
- Capital World Investors also filed stake reports on 125 other companies: New Fortress Energy Inc. (Oct 2026), Aura Minerals Inc. (Oct 2026), Skyworks Solutions, Inc. (Oct 2026)
- FMR LLC also filed stake reports on 761 other companies: ASPEN NEUROSCIENCE INC (Nov 2026), AVALO THERAPEUTICS INC (Nov 2026), BRAZE INC (Nov 2026)
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