Security key
363576109
Arthur J. Gallagher & Co. - Common Stock, par value $1.00 per share (AJG)
CUSIP: 363576109
Q2 2026 13F Holders as of 30 Jun 2026
- Security type / class
- Equity / Common Stock, par value $1.00 per share
- Total 13F shares
- 11,528,446
- Total 13F value
- $2,648,319,911
- Share change
- +320,134
- SEC-reported price per share
- $229.57
- Number of holders
- 509
- Value change
- +$76,337,916
- Number of buys
- 227
- Number of sells
- 225
- Shares outstanding
- 257,468,655
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
509
Top holders
10
AJG full security history
Ownership snapshot
Full 13F holder table
Arthur J. Gallagher & Co. SEC filings
Arthur J. Gallagher & Co. company facts
Broader feeds
Ownership snapshot
Top reported holders of AJG - Arthur J. Gallagher & Co. - Common Stock, par value $1.00 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
01 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.5%
13D/G row: VANGUARD CAPITAL MANAGEMENT LLC
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.5%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
BlackRock, Inc.
6.9%
JPMORGAN CHASE & CO
5.5%
Capital World Investors
5%
David S. Johnson
0.02%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.5%
|
$4,167,833,033
19,243,850 shares
|
$0 | 31 Mar 2026 |
| BlackRock, Inc. |
13D/G
13F
Company
|
6.9%
|
$5,674,337,959
17,725,659 shares
|
$0 | 30 Jun 2025 |
| JPMORGAN CHASE & CO |
13F
13D/G
Company
|
5.5%
from 13D/G
|
$4,225,720,136
19,568,047 shares
|
— | 31 Mar 2026 |
| Capital World Investors |
13D/G
13F
Company
|
5%
|
$3,351,793,734
12,951,790 shares
|
$0 | 31 Dec 2025 |
| David S. Johnson |
3/4/5
Director
|
0.02%
|
$10,262,979
47,387 shares
|
— | 01 Jun 2026 |
| Norman L. Rosenthal |
3/4/5
Director
|
0.02%
|
$9,383,688
43,327 shares
|
— | 12 May 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
509
Shares
11,528,446
Rows available
509
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
1,239
Q2 2026 holders
509
Holder diff
-730
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|