Arthur J. Gallagher & Co. (AJG) Institutional Ownership & Insider Trading

1,286 institutions reported holding Arthur J. Gallagher & Co. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 18 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

AJGArthur J. Gallagher & Co.Follow AJG — free

Insurance Brokers · Financials

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Market cap: 68.7B
P/E TTM: 44.5
Dividend yield: 1.0%
52-week: —
Next earnings: 29 Oct, in 5 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

1,286 institutions held 93.1% of the shares. Across filers that reported both quarters, shares held changed +0.7%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	1,286	239	+0.7%	399	121	435	83
Mar 26	1,231	229	-0.5%	373	103	411	148
Dec 25	1,270	237	-6.3%	315	55	493	151
Sep 25	1,306	245	+9.8%	408	77	394	103
Jun 25	1,349	228	-1.2%	457	95	388	78
Mar 25	1,325	224	-0.9%	456	134	376	96
Dec 24	1,279	232	+20.7%	467	122	270	60
Sep 24	1,166	182	-5.0%	333	85	354	38

Arthur J. Gallagher & Co. — questions

Who owns Arthur J. Gallagher & Co. stock?: 1,286 institutions reported Arthur J. Gallagher & Co. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (7.7%), FMR LLC (7.3%), VANGUARD CAPITAL MANAGEMENT LLC (6.5%).
Are Arthur J. Gallagher & Co. insiders buying or selling?: 18 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Arthur J. Gallagher & Co.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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