$AJG

$266.79 -$1.25 (0.47%) Close

$AJG Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 256.3M shares outstanding

Who owns AJG?

By type of holder

Institutions 93.1% Insiders 1.4% Everyone else 5.5%

Concentration Top 10 holders own 50.0%

BlackRock, Inc. 7.7% · Jpmorgan Chase & Co 5.6%

Institutional ownership

93.1%

+3.5 pts vs last qtr

Institutional holders

1,286

+37 vs last qtr

Net shares bought

+8.9M

by institutions in Q2 2026

New / sold out

163 / 126

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Norges Bank NEW +6.7M
FMR LLC +4.0M

Biggest sellers in Q2 2026

Jpmorgan Chase & Co −5.2M
Janus Henderson Group PLC SOLD OUT −2.0M

Who is planning to sell?

Notices of proposed sale, last 12 months

$38.5M

17 notices from 8 people

Shares covered

158.9K

0.06% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Matrix Trust Co Trustee for arthur j gallagher rabbi trust $14M
Gallagher J Patrick JR Officer $6.32M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Arthur J. Gallagher & Co..

How patient are the owners?

Institutional shares by how long they've been held

5+ years69% 3–5 years9% 1–3 years5% Under 1 year17%

Quarterly turnover

12.4%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting AJG on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	19.8M	7.73%	+515.1K (+2.7%)	≤2021	0.1%
Shares held by quarter Peak holding20.1M (Q1'25) Change over 8 quarters+2.3M Share of the company7.730% BlackRock, Inc.'s full portfolio →
JC Jpmorgan Chase & Co	14.4M	5.60%	−5.2M (−26.6%)	≤2021	0.2%
Shares held by quarter Peak holding20.3M (Q3'25) Change over 8 quarters+9.5M Share of the company5.600% Jpmorgan Chase & Co's full portfolio →

BlackRock, Inc.

19.8M

% of company

7.73%

Change vs last qtr

+515.1K (+2.7%)

Held since

≤2021

Jpmorgan Chase & Co

14.4M

% of company

5.60%

Change vs last qtr

−5.2M (−26.6%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Arthur J. Gallagher & Co., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting AJG on Form N-PORT; together they hold 44.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$1.87B	8.2M	3.18%	0.08%	June 30, 2026
V5 Vanguard 500 Index Fund Vanguard Index Funds	$1.53B	6.7M	2.60%	0.09%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$1.87B

% of company

3.18%

% of the fund

0.08%

As of

June 30, 2026

Vanguard 500 Index Fund

Vanguard Index Funds

Position value

$1.53B

% of company

2.60%

% of the fund

0.09%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Arthur J. Gallagher & Co. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
GJ Gallagher J Patrick JR Insider	1.8M	0.69%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.690% Gallagher J Patrick JR's insider activity →
GT Gallagher Thomas Joseph Insider	731.7K	0.29%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.290% Gallagher Thomas Joseph's insider activity →

Gallagher J Patrick JR

Insider

1.8M

% of company

0.69%

Change vs last qtr

—

Held since

—

Gallagher Thomas Joseph

Insider

731.7K

% of company

0.29%

Change vs last qtr

—

Held since

—

21 more holders behind a free account

See every insider and 5%+ holder of Arthur J. Gallagher & Co..

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