Arthur J. Gallagher Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

DB:GAH Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
07 May 25	Sell€3,589,707	Richard Cary	Individual	12,000	€299.14
21 Mar 25	Sell€2,316,114	Scott Hudson	Individual	7,510	€308.40
13 Feb 25	Sell€3,127,387	Walter Bay	Individual	10,000	€312.74
12 Feb 25	Sell€101,080	David Johnson	Individual	325	€311.02
10 Feb 25	Sell€3,132,662	Richard Cary	Individual	10,000	€314.86
03 Feb 25	Sell€737,473	Sherry Barrat	Individual	2,500	€294.99
23 Dec 24	Buy€304,712	Patrick Gallagher	Individual	1,115	€273.28
08 Nov 24	Sell€241,159	Sherry Barrat	Individual	878	€274.67
01 Aug 24	Sell€2,302,200	Douglas Howell	Individual	8,710	€264.32
30 Jul 24	Sell€1,665,825	Walter Bay	Individual	6,335	€262.96
18 Jun 24	Sell€2,031,238	Walter Bay	Individual	8,303	€244.64
18 Jun 24	Sell€2,453,011	Scott Hudson	Individual	10,000	€245.30
22 May 24	Sell€202,266	David Johnson	Individual	850	€237.96
17 May 24	Sell€1,205,769	Douglas Howell	Individual	5,100	€236.43
16 May 24	Sell€1,763,390	Walter Bay	Individual	7,576	€232.76

Insider Trading Volume

Insider Buying: GAH insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of GAH?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	0	0%
State or Government	222,848	0.087%
Individual Insiders	2,660,577	1.04%
General Public	18,623,679	7.27%
Institutions	234,592,896	91.6%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 17.2%.

Top Shareholders

Top 25 shareholders own 58.38% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
11.6%	The Vanguard Group, Inc.	29,672,134	€8.9b	14.9%	0.15%
7.86%	BlackRock, Inc.	20,125,696	€6.0b	3.24%	0.11%
7.43%	Capital Research and Management Company	19,030,650	€5.7b	13.4%	0.31%
4.01%	State Street Global Advisors, Inc.	10,282,064	€3.1b	15.1%	0.13%
3.99%	FMR LLC	10,227,784	€3.1b	-4.53%	0.21%
3.9%	JP Morgan Asset Management	9,991,648	€3.0b	256%	0.37%
2.45%	Geode Capital Management, LLC	6,277,993	€1.9b	14.3%	0.15%
1.96%	Norges Bank Investment Management	5,008,248	€1.5b	-13.7%	0.13%
1.36%	Morgan Stanley Investment Management Inc.	3,474,668	€1.0b	-21%	0.89%
1.12%	Massachusetts Financial Services Company	2,873,049	€863.4m	-2.08%	0.22%
1.1%	Wellington Management Group LLP	2,822,319	€848.1m	162%	0.16%
1.09%	Brown Advisory Incorporated	2,788,016	€837.8m	-5.67%	1.28%
1.01%	UBS Asset Management AG	2,587,108	€777.4m	54.1%	0.08%
0.99%	Winslow Capital Management, LLC	2,534,749	€761.7m	0%	3.13%
0.94%	Citadel Advisors LLC	2,405,296	€722.8m	7,980%	0.83%
0.92%	Northern Trust Global Investments	2,355,301	€707.8m	25.6%	0.11%
0.91%	WCM Investment Management, LLC	2,336,591	€702.2m	0.33%	1.21%
0.81%	Principal Global Investors, LLC	2,081,978	€625.7m	3.35%	0.35%
0.79%	Charles Schwab Investment Management, Inc.	2,029,256	€609.8m	0%	0.11%
0.75%	Mitsubishi UFJ Asset Management Co., Ltd.	1,913,076	€574.9m	-8.54%	0.34%
0.73%	Jane Street Group, LLC, Asset Management Arm	1,857,335	€558.1m	5,770%	1.05%
0.72%	Eaton Vance Management	1,852,508	€556.7m	0%	0.15%
0.69%	D. E. Shaw & Co., L.P.	1,758,166	€528.3m	1,510%	0.76%
0.68%	Strategic Advisers LLC	1,731,396	€520.3m	8.72%	0.21%
0.59%	Janus Henderson Group plc	1,499,875	€450.7m	12.7%	0.21%

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/05/11 16:22
End of Day Share Price	2025/05/09 00:00
Earnings	2025/03/31
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Arthur J. Gallagher & Co. is covered by 36 analysts. 10 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
null null	Argus Research Company
John Heagerty	Atlantic Equities LLP
Taylor Scott	Barclays