← Every company

Who Owns Arthur J. Gallagher & Co.

Every manager with more than $100m in listed equities files a 13F each quarter naming what they hold. These are the ones reporting a position in Arthur J. Gallagher & Co..

Who crossed 5% of AJG →
Managers holding
57
as of 2026-09-30
Reported value
$255.2M
summed across filings
Shares held
1.1M
Added vs trimmed
12 / 19
since each filer's last quarter

Positions as of 2026-09-30

Largest first. The move is against the previous quarter that manager filed, not the previous calendar quarter.

ManagerValue
Fenimore Asset Management IncCOM563.1K shtrimmed$128.5M
PROFESSIONAL ADVISORY SERVICES INCCOM118.3K shadded$27M
Mn Services Vermogensbeheer B.V.COM74.9K shheld$17.1M
NORTH POINT PORTFOLIO MANAGERS CORP/OHCOM64.2K shtrimmed$14.6M
JIA INVESTMENT ALLIANCE PTE. LTD.COM52.4K shheld$12M
FERGUSON WELLMAN CAPITAL MANAGEMENT, INCCOM41K shtrimmed$9.4M
TOMPKINS FINANCIAL CORPCOM39.3K shtrimmed$9M
Bath Savings Trust CoCommon Stock31K shtrimmed$7.1M
HWG Holdings LPCOM18.3K sh—$4.2M
Ballew Advisors, IncCOM14.9K shadded$3.4M
TILIA FIDUCIARY PARTNERS, INC.Stock12.9K shadded$2.9M
MOODY NATIONAL BANK TRUST DIVISIONCOM7.6K shadded$1.7M
BRIGHT ROCK CAPITAL MANAGEMENT, LLCCOM7.5K shheld$1.7M
Wedmont Private CapitalCOM6.5K shtrimmed$1.5M
Farther Finance Advisors, LLCStock6.6K shadded$1.5M
Central Pacific Bank - Trust DivisionCOM6.2K shadded$1.4M
GAMMA Investing LLCCommon Stock5K shadded$1.1M
Avidian Wealth Enterprises, LLCCOM4.9K shtrimmed$1.1M
Wealth Enhancement Trust Services, Inc.COM4.2K shadded$962.6K
YHB Investment Advisors, Inc.COM3.7K shtrimmed$846.7K
Valeo Financial Advisors, LLCStock3.2K shadded$728.9K
Asempa Wealth AdvisorsCOM3K shheld$701.6K
PARK NATIONAL CORP /OH/Com2.8K shheld$630K
HF Advisory Group, LLCCOM2.1K sh—$486.6K
Pathway Financial Advisors LLCCOM2.1K shheld$479K
Bank of New HampshireCOM2K shheld$456.2K
Wealth Science Advisors LLCCOM1.8K shtrimmed$404.4K
AVITY INVESTMENT MANAGEMENT INC.COM1.7K shtrimmed$393.9K
ROCKLAND TRUST COCOM1.7K shtrimmed$380.5K
Longview Financial Advisors, Inc.Stock1.6K shadded$356.3K
BAKER TILLY WEALTH MANAGEMENT, LLCCOM1.3K shtrimmed$286K
Everhart Financial Group, Inc.COM1.2K sh—$268K
Successful Portfolios LLCCOM1.1K shheld$252.9K
EASTERN BANKCOM1.1K shtrimmed$251.5K
Red Spruce Capital, LLCCOM1.1K shheld$239.5K
Trinity Financial Advisors LLCCOM1K shheld$228.1K
Grove Bank & TrustCOM991 shheld$226.1K
CONGRESS ASSET MANAGEMENT COCOM969 shtrimmed$221K
BOS Asset Management, LLCCOM908 shheld$207.1K
MassMutual Private Wealth & Trust, FSBCommon / Ordinary Stock902 shtrimmed$205.8K
Trust CoStock618 shtrimmed$141K
AMERICAN NATIONAL BANK & TRUSTCOM612 shtrimmed$139.6K
CoreCap Advisors, LLCStock515 shtrimmed$117.5K
Bangor Savings BankCOM414 shheld$94.4K
ELEVATION WEALTH PARTNERS, LLCCOM327 shadded$74.6K
Rosenberg Matthew HamiltonStock324 shheld$73.9K
ATWOOD & PALMER INCCOM255 shheld$58.2K
VALLEY WEALTH MANAGERS, INC.Stock174 shheld$39.7K
Retirement Wealth Solutions LLCCOM72 shheld$16.5K
GK Wealth Management LLCCOM38 sh—$8.6K
ARMSTRONG ADVISORY GROUP, INCCOM32 shheld$7.3K
Aventus Investment Advisors, Inc.Stock30 shheld$6.8K
TOTH FINANCIAL ADVISORY CORPCOM10 sh—$2.3K
Marquette Asset Management, LLCCOM8 shtrimmed$1.8K
Investors Research CorpCOM8 shheld$1.8K
Davis Capital ManagementStock6 shadded$1.4K
GILPIN WEALTH MANAGEMENT, LLCCOM1 sh—$229

Source: quarterly 13F filings, via EDGAR. A 13F reports positions by CUSIP alone; each CUSIP here has been confirmed against OpenFIGI rather than matched by name, because a name match would attribute one company's shareholders to another. Positions are as of quarter end and can be months old by the time they are filed, and 13F covers long equity positions only — not shorts, and not most debt. The summed value is what these filers reported, not the company's institutional ownership.

More on AJG

Follow Arthur J. Gallagher & Co. (AJG) by email

New trades in Arthur J. Gallagher & Co. (AJG) by members of Congress, insiders and funds, with the rest of the week's filings. One email a week, free.

Unsubscribe with one click from any email.

Related datasets