Latest Period
Q1 2026
Security Snapshot
Arthur J. Gallagher & Co. - Common Stock (AJG) Institutional Ownership
CUSIP: 363576109
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
1,237
Shares (Excl. Options)
229,170,199
Price
$216.58
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- Security type / class
- Equity / Common Stock
- Symbol
- AJG on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 229,170,199
- Total 13F value
- $49,606,513,127
- Portfolio coverage rank
- 0.03%
- Share change
- -3,809,019
- Value change
- -$1,278,722,039
- Number of holders
- 1,237
- Shares outstanding
- 256,927,236
- SEC-reported price per share
- $229.57
- Insider filing price
- $229.57
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- AJG - Arthur J. Gallagher & Co. - Common Stock is tracked under CUSIP 363576109.
- 1237 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 1,237 to 78 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $49,606,513,127 to $214,332,067.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 1237 institutions filings for Q1 2026.
Security key
363576109
Latest holder period
Q1 2026
13F holders
1,237
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
AJG full holder history
Arthur J. Gallagher & Co. SEC filings
Arthur J. Gallagher & Co. company facts
Arthur J. Gallagher & Co. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 363576109:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
AJG
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| JPMORGAN CHASE & CO | 7.8% | +16% | $6,242,814,966 | +$932,130,007 | 20,155,017 | +18% | JPMORGAN CHASE & CO. | 30 Sep 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC | 7.5% | $4,167,833,033 | 19,243,850 | Vanguard Capital Management | 31 Mar 2026 | |||
| BlackRock, Inc. | 6.9% | $5,674,337,959 | 17,725,659 | BlackRock, Inc. | 30 Jun 2025 | |||
| Capital World Investors | 5% | $3,351,793,734 | 12,951,790 | Capital World Investors | 31 Dec 2025 |
As of 31 Mar 2026, 1,237 institutional investors reported holding 229,170,199 shares of Arthur J. Gallagher & Co. - Common Stock (AJG). This represents 89% of the company’s total 256,927,236 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
62%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| JPMORGAN CHASE & CO | 7.6% | 19,568,047 | -3.7% | 0.29% | $4,225,720,136 |
| BlackRock, Inc. | 7.5% | 19,307,796 | +0.35% | 0.07% | $4,181,682,664 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.5% | 16,699,898 | 0% | 0.09% | $3,616,863,909 |
| FMR LLC | 5.7% | 14,620,963 | -3.2% | 0.17% | $3,166,608,210 |
| Capital World Investors | 5.4% | 13,817,720 | +9.5% | 0.41% | $2,992,606,755 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.8% | 12,419,279 | 0% | 0.14% | $2,689,767,446 |
| STATE STREET CORP | 4.3% | 10,973,921 | +0.19% | 0.08% | $2,376,731,810 |
| Dodge & Cox | 2.9% | 7,354,915 | +735% | 0.88% | $1,592,927,491 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 6,243,640 | +3.8% | 0.08% | $1,351,973,825 |
| MORGAN STANLEY | 1.6% | 4,056,174 | -48% | 0.05% | $878,486,721 |
| PRINCIPAL FINANCIAL GROUP INC | 1.3% | 3,242,088 | +14% | 0.38% | $702,181,687 |
| Capital Research Global Investors | 1.2% | 2,980,131 | +92% | 0.1% | $645,434,734 |
| EAGLE CAPITAL MANAGEMENT LLC | 1% | 2,665,572 | 1.9% | $577,309,518 | |
| Capital International Investors | 1% | 2,596,653 | -59% | 0.13% | $562,331,598 |
| WELLINGTON MANAGEMENT GROUP LLP | 1% | 2,583,359 | -13% | 0.1% | $559,503,892 |
| GTCR LLC | 0.92% | 2,373,773 | 14% | $514,111,756 | |
| WCM INVESTMENT MANAGEMENT, LLC | 0.92% | 2,362,513 | -0.75% | 1.2% | $510,184,738 |
| NORTHERN TRUST CORP | 0.87% | 2,229,829 | -0.02% | 0.06% | $482,936,365 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.82% | 2,109,463 | +3.2% | 0.07% | $457,172,349 |
| JANUS HENDERSON GROUP PLC | 0.77% | 1,970,990 | +5.4% | 0.2% | $426,886,844 |
| FRANKLIN RESOURCES INC | 0.76% | 1,954,100 | +401% | 0.1% | $423,218,980 |
| GOLDMAN SACHS GROUP INC | 0.76% | 1,953,270 | +14% | 0.06% | $423,039,069 |
| BANK OF AMERICA CORP /DE/ | 0.72% | 1,854,488 | +23% | 0.03% | $401,644,934 |
| Invesco Ltd. | 0.67% | 1,715,812 | -1% | 0.06% | $371,610,634 |
| BROWN ADVISORY INC | 0.62% | 1,580,307 | -22% | 0.56% | $342,266,438 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q1 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 932,864 | $214,332,067 | +$4,443,484 | $229.57 | 78 |
| 2026 Q1 | 229,170,199 | $49,606,513,127 | -$1,278,722,039 | $216.58 | 1,237 |
| 2025 Q4 | 234,104,494 | $60,539,925,827 | +$2,062,403,776 | $258.79 | 1,293 |
| 2025 Q3 | 224,973,489 | $69,601,142,490 | -$1,040,580,353 | $309.74 | 1,328 |
| 2025 Q2 | 227,791,728 | $72,839,908,420 | +$1,101,453,811 | $320.12 | 1,360 |
| 2025 Q1 | 224,021,472 | $77,272,419,154 | -$1,774,697,720 | $345.24 | 1,341 |
| 2024 Q4 | 232,457,193 | $65,987,297,671 | +$12,131,406,733 | $283.85 | 1,309 |
| 2024 Q3 | 187,173,127 | $52,679,414,541 | -$530,726,999 | $281.37 | 1,190 |
| 2024 Q2 | 189,018,822 | $49,023,449,437 | +$906,162,686 | $259.31 | 1,142 |
| 2024 Q1 | 185,687,022 | $46,399,473,179 | +$33,618,211 | $250.04 | 1,119 |
| 2023 Q4 | 185,452,704 | $41,694,286,696 | -$110,939,205 | $224.88 | 1,077 |
| 2023 Q3 | 185,257,677 | $42,216,774,694 | +$536,912,503 | $227.93 | 991 |
| 2023 Q2 | 181,971,146 | $39,901,956,907 | +$247,732,208 | $219.57 | 967 |
| 2023 Q1 | 181,063,439 | $34,634,801,609 | +$63,909,468 | $191.31 | 935 |
| 2022 Q4 | 181,615,768 | $34,239,959,080 | +$19,660,891 | $188.54 | 909 |
| 2022 Q3 | 182,532,989 | $31,269,696,433 | +$511,820,151 | $171.22 | 849 |
| 2022 Q2 | 178,431,447 | $29,086,247,637 | +$228,103,920 | $163.04 | 811 |
| 2022 Q1 | 177,797,814 | $31,016,015,563 | +$81,171,001 | $174.60 | 804 |
| 2021 Q4 | 177,263,332 | $30,044,423,551 | +$16,714,205 | $169.67 | 842 |
| 2021 Q3 | 177,056,860 | $26,315,528,149 | +$190,241,113 | $148.65 | 756 |
| 2021 Q2 | 175,727,054 | $24,590,770,903 | +$1,450,848,130 | $140.08 | 766 |
| 2021 Q1 | 165,350,403 | $20,613,688,189 | +$229,737,382 | $124.77 | 719 |
| 2020 Q4 | 163,592,286 | $20,212,488,290 | +$476,727,934 | $123.71 | 712 |
| 2020 Q3 | 159,865,142 | $16,868,703,845 | +$63,972,121 | $105.58 | 683 |
| 2020 Q2 | 158,648,856 | $15,461,216,958 | +$235,091,999 | $97.49 | 653 |