GALLAGHER ARTHUR J & CO (AJG): Institutional Ownership
Hedge funds and institutional managers reporting a position in AJG · Financials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
29
13F filers
Aggregate Value
$2.3B
Across holders
Last Price
$226.01
2026-06-26
Sector
Financials
GICS
Holder activity9 new13 added7 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| DODGE & COX CIK 0000200217 | Institutional Manager | 7.35M | $1.6B | 70.6% | 0.9% | Added | +$1.4B | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 757K | $163.9M | 7.3% | 0.0% | Added | +$151.5M | Q1 2026 |
| VIKING GLOBAL INVESTORS LP CIK 0001103804 | Hedge Fund | 727K | $157.5M | 7.0% | 0.4% | Reduced | $-67.9M | Q1 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 341K | $73.8M | 3.3% | 0.1% | Added | +$39.2M | Q1 2026 |
| SANDS CAPITAL MANAGEMENT, LLC CIK 0001020066 | Institutional Manager | 244K | $63.2M | 2.8% | 0.2% | New | — | Q4 2025 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 239K | $51.8M | 2.3% | 0.1% | Added | +$49.3M | Q1 2026 |
| MOORE CAPITAL MANAGEMENT, LP CIK 0001448574 | Hedge Fund | 145K | $45.0M | 2.0% | 0.6% | New | — | Q3 2025 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 91K | $19.6M | 0.9% | 0.1% | Added | +$18.5M | Q1 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 77K | $16.6M | 0.7% | 0.0% | Added | +$15.7M | Q1 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 64K | $13.8M | 0.6% | 0.0% | Added | +$4.0M | Q1 2026 |
| Hudson Bay Capital Management LP CIK 0001393825 | Hedge Fund | 38K | $12.3M | 0.5% | 0.0% | New | — | Q2 2025 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 39K | $12.1M | 0.5% | 0.0% | New | — | Q3 2025 |
| BAILLIE GIFFORD & CO CIK 0001088875 | Institutional Manager | 44K | $9.5M | 0.4% | 0.0% | Reduced | $-34.4M | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 24K | $5.1M | 0.2% | 0.0% | Added | +$4.5M | Q1 2026 |
| ARIEL INVESTMENTS, LLC CIK 0000936753 | Institutional Manager | 20K | $4.3M | 0.2% | 0.0% | Added | +$954K | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 11K | $3.4M | 0.2% | 0.0% | New | — | Q2 2025 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 14K | $3.1M | 0.1% | 0.0% | Added | +$1.8M | Q1 2026 |
| Ancora Advisors, LLC CIK 0001446114 | Hedge Fund | 10K | $2.1M | 0.1% | 0.0% | Reduced | $-4K | Q1 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 3K | $878K | 0.0% | 0.0% | New | — | Q2 2025 |
| Man Group plc CIK 0001637460 | Hedge Fund | 3K | $855K | 0.0% | 0.0% | New | — | Q3 2025 |
Added
Institutional Manager
$1.6B· 70.6% of total· 0.9% port· 7.35M sh· +$1.4B QoQ· Q1 2026
Added
Hedge Fund
$163.9M· 7.3% of total· 0.0% port· 757K sh· +$151.5M QoQ· Q1 2026
Reduced
Hedge Fund
$157.5M· 7.0% of total· 0.4% port· 727K sh· $-67.9M QoQ· Q1 2026
Added
Hedge Fund
$73.8M· 3.3% of total· 0.1% port· 341K sh· +$39.2M QoQ· Q1 2026
New
Institutional Manager
$63.2M· 2.8% of total· 0.2% port· 244K sh· — QoQ· Q4 2025
Added
Hedge Fund
$51.8M· 2.3% of total· 0.1% port· 239K sh· +$49.3M QoQ· Q1 2026
New
Hedge Fund
$45.0M· 2.0% of total· 0.6% port· 145K sh· — QoQ· Q3 2025
Added
Hedge Fund
$19.6M· 0.9% of total· 0.1% port· 91K sh· +$18.5M QoQ· Q1 2026
Added
Hedge Fund
$16.6M· 0.7% of total· 0.0% port· 77K sh· +$15.7M QoQ· Q1 2026
Added
Hedge Fund
$13.8M· 0.6% of total· 0.0% port· 64K sh· +$4.0M QoQ· Q1 2026
New
Hedge Fund
$12.3M· 0.5% of total· 0.0% port· 38K sh· — QoQ· Q2 2025
New
Hedge Fund
$12.1M· 0.5% of total· 0.0% port· 39K sh· — QoQ· Q3 2025
Reduced
Institutional Manager
$9.5M· 0.4% of total· 0.0% port· 44K sh· $-34.4M QoQ· Q1 2026
Added
Hedge Fund
$5.1M· 0.2% of total· 0.0% port· 24K sh· +$4.5M QoQ· Q1 2026
Added
Institutional Manager
$4.3M· 0.2% of total· 0.0% port· 20K sh· +$954K QoQ· Q1 2026
New
Hedge Fund
$3.4M· 0.2% of total· 0.0% port· 11K sh· — QoQ· Q2 2025
Added
Hedge Fund
$3.1M· 0.1% of total· 0.0% port· 14K sh· +$1.8M QoQ· Q1 2026
Reduced
Hedge Fund
$2.1M· 0.1% of total· 0.0% port· 10K sh· $-4K QoQ· Q1 2026
New
Hedge Fund
$878K· 0.0% of total· 0.0% port· 3K sh· — QoQ· Q2 2025
New
Hedge Fund
$855K· 0.0% of total· 0.0% port· 3K sh· — QoQ· Q3 2025
Added
Hedge Fund
$845K· 0.0% of total· 0.0% port· 4K sh· +$671K QoQ· Q1 2026
Reduced
Hedge Fund
$842K· 0.0% of total· 0.0% port· 4K sh· $-5.6M QoQ· Q1 2026
Added
Institutional Manager
$576K· 0.0% of total· 0.0% port· 3K sh· +$237K QoQ· Q1 2026
New
Family Office
$469K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q2 2025
New
Hedge Fund
$445K· 0.0% of total· 0.0% port· 2K sh· — QoQ· Q1 2026
Reduced
Institutional Manager
$233K· 0.0% of total· 0.0% port· 1K sh· $-41K QoQ· Q1 2026
Reduced
Hedge Fund
$217K· 0.0% of total· 0.0% port· 1K sh· $-131K QoQ· Q1 2026
Added
Hedge Fund
$211K· 0.0% of total· 0.0% port· 941 sh· +$7K QoQ· Q4 2025
Reduced
Hedge Fund
$216· 0.0% of total· 0.0% port· 1 sh· $-57K QoQ· Q1 2026
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