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AJG Arthur J. Gallagher & Co.

NYSE, CIK 0000354190, fiscal year ends 12/31. Last price 268.04 on 2026-10-23, market value 68.7 billion dollars.

Machine-readable: AJG.json, AJG.md. Sections: Graham Defensive, Magic Formula, Momentum, Insider, Buffett Quality, Lynch GARP, Graham Enterprising, Piotroski F-Score, earnings record, insiders, filings and links.

Philosophy	Score	Status	Current inputs as of	History used	Price	Verification	Rules
Graham Defensive	n/a	not scored (financial)	—	—	—	—	method
Magic Formula	n/a	not scored	—	—	—	—	method
Momentum	45	ok	2026-10-23	—	2026-10-23	—	method
Insider	0	ok	2026-10-23	—	—	—	method
Buffett Quality	n/a	not scored (financial)	—	—	—	—	method
Lynch GARP	n/a	not scored (financial)	—	—	—	—	method
Graham Enterprising	n/a	not scored (financial)	—	—	—	—	method
Piotroski F-Score	n/a	not scored (financial)	—	—	—	—	method

Market value, source trail

market_value = traded_price (price date) / depositary_ratio x latest point-in-time SEC shares outstanding (share-count date shown; from the filing cover page, summed across share classes only where the issuer filing verifies the classes are economically equivalent (rule + evidence URL in the source text), else withheld; priced at the primary listed class, so where other classes trade at a different price the value is an approximation; restated only for issuer-verified splits after the count date); weighted-average share counts are never used

Input	Value	Unit	Period / date	Source
Traded price	268.04	USD per traded unit (share or ADS)	2026-10-23	Yahoo Finance
SEC shares outstanding	256,300,000	underlying shares	2026-06-30	SEC cover page 10-Q 0001628280-26-053489 (256,300,000 shares (single class on cover)); filing document https://www.sec.gov/Archives/edgar/data/354190/000162828026053489/ajg-20260630.htm 0001628280-26-053489
Depositary ratio	1.0	underlying shares per traded unit		domestic 10-K filer; SEC shares are the traded units
Market value price date × latest reported shares	68,698,652,000	USD	2026-10-23 shares at 2026-06-30	268.04 (price 2026-10-23) / 1 x 256,300,000 (shares at 2026-06-30) = 68,698,652,000

Graham Defensive

not scored (financial). How this is scored.

not scored (financial).

Magic Formula

not scored. How this is scored.

not scored.

Momentum

45 of 100. ok. How this is scored.

Test or factor	Value	Points
12-1 month return	-17.8 % (percentile 16.9)	8.5 / 50
6 month return	22.9 % (percentile 82.1)	16.4 / 20
Price / 52-week high	0.96	14.4 / 15
Volatility penalty (60d annualised)	31.5 %	5.8 / 15

Inputs, 1 numbers with their sources

Input	Value	Period	Source	Check
Adjusted close series (14 months)	268.04	2026-10-23	Yahoo Finance / Alpaca Market Data daily history	not cross-checked

Insider

0 of 100. ok. How this is scored. Form 4 data loaded through 2026-10-23

Test or factor	Value	Points
Open-market buy value / market cap (percentile among buyers)	0.0 bp	0.0 / 35
Distinct buyers	0	0.0 / 25
Buyer seniority	0.0	0.0 / 20
Recency (half-life 30d)	0.0	0.0 / 10
Sales penalty (excludes 10b5-1 plan sales)	1.1 bp	-7.4 / 0

Inputs, 4 numbers with their sources

Input	Value	Period	Source	Check
Form 4 S CARY RICHARD C 2026-09-15	252860.0	2026-09-15	SEC Form 4 (insider transactions data set)	not cross-checked
Form 4 S Hudson Scott R 2026-09-02	3169560.0	2026-09-02	SEC Form 4 (insider transactions data set)	not cross-checked
Form 4 S Bay Walter D. 2026-08-24	3240960.0	2026-08-24	SEC Form 4 (insider transactions data set)	not cross-checked
Form 4 S Mead Christopher E 2026-08-19	899604.9999999999	2026-08-19	SEC Form 4 (insider transactions data set)	not cross-checked

Buffett Quality

not scored (financial). How this is scored.

not scored (financial).

Lynch GARP

not scored (financial). How this is scored.

not scored (financial).

Graham Enterprising

not scored (financial). How this is scored.

not scored (financial).

Piotroski F-Score

not scored (financial). How this is scored.

not scored (financial).

Earnings record

SEC XBRL, by fiscal year (named by the calendar year it ends in); EPS split-adjusted to today's shares; each row links to the filing.

FY	Ended	Revenue, $M	Net income, $M	EPS diluted	Dividend	Filing
2013	2013-12-31	3,180	269	2.06	paid	0001193125-16-457703
2014	2014-12-31	4,626	303	1.97	paid	0001193125-17-038619
2015	2015-12-31	5,392	357	2.06	paid	0001193125-18-038261
2016	2016-12-31	5,595	397	2.22	paid	0001193125-19-032304
2017	2017-12-31	6,160	481	2.64	paid	0001193125-20-028191
2018	2018-12-31	6,934	634	3.4	paid	0001564590-21-004555
2019	2019-12-31	7,195	669	3.52	paid	0001564590-22-005714
2020	2020-12-31	7,004	819	4.2	paid	0000950170-23-002456
2021	2021-12-31	8,209	907	4.37	paid	0000950170-24-013370
2022	2022-12-31	8,551	1,114	5.19	paid	0000950170-25-021775
2023	2023-12-31	10,072	970	4.42	paid	0001628280-26-008662
2024	2024-12-31	11,555	1,463	6.5	paid	0001628280-26-008662
2025	2025-12-31	13,942	1,494	5.74	paid	0001628280-26-008662

Insider transactions

SEC Form 4 open-market purchases and sales from the insider data sets; latest 20.

Date	Insider	Role	Type	Shares	Price	Value
2026-09-15	Cary Richard C	officer	sale	1,000	252.86	252,860
2026-09-02	Hudson Scott R	Pres	sale	12,000	264.13	3,169,560
2026-08-24	Bay Walter D.	officer	sale	12,000	270.08	3,240,960
2026-08-19	Mead Christopher E	Pres	sale	3,500	257.03	899,605
2026-06-02	Cary Richard C	officer	sale	3,000	206.00	618,000

Filings and links

Third-party sites are linked only; nothing from them is stored here.

SEC: filing index, 8-K, Form 4, XBRL companyfacts
Prices: Yahoo Finance, Stooq
Elsewhere: morningstar, finviz, stockanalysis, seeking alpha, openinsider, google news

Cite as: The Claude Trader snapshot 2026-10-26, https://theclaudetrader.com/s/AJG; data from SEC EDGAR XBRL and market prices (Alpaca Market Data, Yahoo Finance) to 2026-10-23. Data last checked 2026-10-26.