Arthur J. Gallagher & Co. (AJG)
NYSE: AJG · Insurance Agents, Brokers & Service · Rolling Meadows, IL · filing with the SEC since 1994
Grade5.6
◀ Past 3.8● Present 6.4▶ Future 5.8
Who owns Arthur J. Gallagher & Co.
As filed with the SECHolders of 5% or more
4
Vanguard Capital Management holds 7.49% of Common Stock, as its SCHEDULE 13G filed Apr 29, 2026 says.
Directors and officers
21
report now, of 30 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Fmr LLC
SCHEDULE 13G/A · filed Aug 6, 2026 · COMMON STOCK
Blackrock, Inc.
SCHEDULE 13G/A · filed Jul 16, 2025 · Common Stock
JPMorgan Chase & Co.
SCHEDULE 13G/A · filed Jul 27, 2026 · Common Stock, par value $1.00 per share · 7.8% in Oct 31, 2025
Capital World Investors
SCHEDULE 13G/A · filed Aug 12, 2026 · Common Stock · reported falling below 5%, from 5% in Feb 13, 2026
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%
What AJG reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
AssuredPartners, Inc
A company bought · acquisition · owns, named in the 10-K filed Feb 17, 2026
505 subsidiaries in 51 countries, from the list filed with the 10-K filed Feb 17, 2026.
Insider tradesForm 4
19sales
0purchases
0sales on a scheduled plan
8people selling
$46.2Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 10, 2025 to Nov 10, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 10, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window8 of 30 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Howell Douglas K | VP & Chief Financial Officer | 4 | $9.8M | 0 | 0 | $0 |
| Bay Walter D. | General Counsel | 2 | $7.3M | 0 | 0 | $0 |
| Ziebell William F | VICE PRESIDENT | 1 | $6.7M | 0 | 0 | $0 |
| Gallagher J Patrick Jr | CEO | 1 | $6.3M | 0 | 0 | $0 |
| Mead Christopher E | VICE PRESIDENT | 5 | $5.3M | 0 | 0 | $0 |
| Pietrucha Susan E | Chief Human Resources Officer | 1 | $4.2M | 0 | 0 | $0 |
| Hudson Scott R | Vice President | 2 | $4.0M | 0 | 0 | $0 |
| Cary Richard C | Controller, CAO | 3 | $2.4M | 0 | 0 | $0 |