AJG

Arthur J. Gallagher

$197.40-19.18 (-8.86%)

Closing price as of May 12, 2026

13 superinvestors own AJG

Based on latest 13F filings — data is 45–90 days delayed

Investor	Fund	Weight	Shares	Value	Quarter	Activity
Torray Funds	Torray Investment Partners	0.92%	29,035	$6.3M	2026Q1	Added
Dodge & Cox	Dodge & Cox	0.88%	7,354,915	$1.6B	2026Q1	Added
William Von Mueffling	Cantillon Capital Management	0.65%	989,620	$29.2M	2006Q4	Reduced
FPA / Steven Romick	FPA Crescent Fund – First Pacific Advisors	0.46%	899,000	$22.8M	2006Q2	Reduced
Viking Global Investors	Viking Global Investors	0.44%	727,441	$157.5M	2026Q1	Reduced
Meridian / ArrowMark	Meridian Contrarian Fund	0.29%	242,667	$11.4M	2014Q4	Reduced
Thomas Gayner	Markel Group	0.26%	20,000	$520K	2001Q2	Held
Ruane Cunniff	Sequoia Fund	0.15%	550,000	$13.5M	2003Q1	New
Tweedy Browne Co.	Tweedy Browne Value Fund	0.07%	63,723	$2.8M	2013Q2	Held
Ariel Investments	Ariel Investments (Bobrinskoy & Rogers)	0.05%	19,764	$4.3M	2026Q1	Added
Jensen Investment Management	Jensen Investment Management	0.00%	8,600	$226K	2011Q3	Reduced
Mairs & Power	Mairs & Power Growth Fund	0.00%	760	$235K	2025Q3	Held
Kenneth Fisher	Fisher Asset Management	0.00%	2,659	$576K	2026Q1	Added

Open-market purchases (P) and sales (S) from SEC Form 4 filings · last 12 months

No open-market insider trades in the last 12 months.

Form 4 filings for option exercises and other transaction types are excluded.

STOCK Act disclosures · last 12 months

Congressional trade data coming soon.

We are sourcing STOCK Act disclosures and will display them here shortly.

What Is SEC Form 4?

Understand the insider trade filings behind AJG activity.

What Is a 13F Filing?

How superinvestors disclose their quarterly holdings.

Insider Cluster Buying

Why multiple insiders buying together is a strong signal.

Superinvestor Consensus

The most widely held stocks across all tracked institutions.