Arthur J. Gallagher & Co.
AJG- Exchange
- NYSE
- Industry
- Insurance Agents, Brokers & Service
- SEC CIK
- 0000354190
In the last 90 days, Arthur J. Gallagher & Co. insiders filed 0 open-market purchases and 4 sales; 1,295 institutions reported holding it in 13F filings for Q2 2026, worth $54.7B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Arthur J. Gallagher & Co. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 1,248
- −28 vs. Q4 2025
- Shares held
- 229.6M
- +35.7M (+18.4%) vs. Q4 2025
- Total value
- $49.7B
- −$464.2M (−0.9%) vs. Q4 2025
- New holders
- 155
- 432 more added
- Sold out
- 183
- 473 more reduced
23 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AJG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,295 | $54.7B |
| Q1 2026 | 1,248 | $49.7B |
| Q4 2025 | 1,299 | $60.6B |
| Q3 2025 | 1,341 | $69.7B |
| Q2 2025 | 1,379 | $72.9B |
| Q1 2025 | 1,359 | $79.0B |
| Q4 2024 | 1,325 | $65.9B |
| Q3 2024 | 1,203 | $52.8B |
| Q2 2024 | 1,153 | $49.1B |
| Q1 2024 | 1,130 | $46.5B |
| Q4 2023 | 1,082 | $41.9B |
| Q3 2023 | 999 | $42.3B |
| Q2 2023 | 976 | $39.9B |
| Q1 2023 | 951 | $34.7B |
| Q4 2022 | 921 | $34.1B |
| Q3 2022 | 865 | $31.2B |
| Q2 2022 | 823 | $29.1B |
| Q1 2022 | 817 | $31.0B |
| Q4 2021 | 854 | $30.1B |
| Q3 2021 | 775 | $26.3B |
| Q2 2021 | 779 | $24.6B |
| Q1 2021 | 732 | $20.6B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Deutsche Bank AG | 755,049 | $163.5M | 0.05% | +77,055+11.4% | Added |
| Citadel Advisors LLC | 762,692 | $165.2M | 0.12% | +138,732+22.2% | Added |
| California Public Employees Retirement System | 789,499 | $171.0M | 0.11% | +251,340+46.7% | Added |
| Boston Partners | 808,257 | $175.1M | 0.18% | −21,902−2.6% | Reduced |
| Woodline Partners LP | 840,676 | $182.1M | 0.69% | +305,074+57.0% | Added |
| Dimensional Fund Advisors LP | 853,192 | $184.8M | 0.04% | +47,588+5.9% | Added |
| Artisan Partners Limited Partnership | 884,899 | $191.7M | 0.31% | +680,061+332.0% | Added |
| Guinness Asset Management LTD | 901,899 | $194.8M | 3.36% | +96,366+12.0% | Added |
| Alliancebernstein L.P. | 781,086 | $202.1M | 0.07% | −12,022−1.5% | Reduced |
| Amundi | 939,835 | $203.5M | 0.06% | +9,250+1.0% | Added |
| Envestnet Asset Management Inc | 977,349 | $211.7M | 0.06% | −244,681−20.0% | Reduced |
| T. Rowe Price Investment Management, Inc. | 986,579 | $213.7M | 0.15% | −4,900,959−83.2% | Reduced |
| UBS Group AG | 989,174 | $214.2M | 0.04% | −89,269−8.3% | Reduced |
| APG Asset Management N.V. | 1,177,502 | $221.3M | 0.70% | −5,357−0.5% | Reduced |
| Brown Brothers Harriman & Co | 1,031,635 | $223.4M | 1.20% | +6,440+0.6% | Added |
| Beck Mack & Oliver LLC | 1,062,566 | $230.1M | 4.75% | +183,507+20.9% | Added |
| FIL Ltd | 1,209,624 | $262.0M | 0.20% | −98,465−7.5% | Reduced |
| Bank of New York Mellon Corp | 1,287,455 | $278.8M | 0.05% | −19,020−1.5% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,301,447 | $281.9M | 0.19% | −1,754,622−57.4% | Reduced |
| Legal & General Group Plc | 1,373,429 | $297.5M | 0.07% | +3,552+0.3% | Added |
| Colony Group, LLC | 1,379,397 | $298.8M | 0.33% | +735,269+114.1% | Added |
| Vanguard Fiduciary Trust Co | 1,447,832 | $313.6M | 0.08% | +1,447,832 | New |
| UBS Asset Management Americas Inc | 1,449,869 | $314.0M | 0.07% | +3,100+0.2% | Added |
| Brown Advisory Inc | 1,580,307 | $342.3M | 0.56% | −447,622−22.1% | Reduced |
| Invesco Ltd. | 1,715,812 | $371.6M | 0.04% | −17,357−1.0% | Reduced |
| Bank of America Corp | 1,854,488 | $401.6M | 0.03% | +346,409+23.0% | Added |
| Goldman Sachs Group Inc | 1,953,270 | $423.0M | 0.06% | +241,726+14.1% | Added |
| Franklin Resources Inc | 1,954,100 | $423.2M | 0.10% | +1,563,789+400.7% | Added |
| Janus Henderson Group PLC | 1,970,990 | $426.9M | 0.20% | +101,431+5.4% | Added |
| Charles Schwab Investment Management Inc | 2,109,463 | $457.2M | 0.07% | +65,823+3.2% | Added |
| Northern Trust Corp | 2,229,829 | $482.9M | 0.06% | −4430.0% | Reduced |
| WCM Investment Management, LLC | 2,362,513 | $510.2M | 1.16% | −17,781−0.7% | Reduced |
| GTCR LLC | 2,373,773 | $514.1M | 13.60% | +2,373,773 | New |
| Wellington Management Group LLP | 2,583,359 | $559.5M | 0.10% | −382,624−12.9% | Reduced |
| Capital International Investors | 2,596,653 | $562.3M | 0.13% | −3,683,802−58.7% | Reduced |
| Eagle Capital Management LLC | 2,665,572 | $577.3M | 1.94% | +2,665,572 | New |
| Capital Research Global Investors | 2,980,131 | $645.4M | 0.10% | +1,431,658+92.5% | Added |
| Principal Financial Group Inc | 3,242,088 | $702.2M | 0.38% | +409,145+14.4% | Added |
| Morgan Stanley | 4,056,175 | $878.5M | 0.05% | −3,717,633−47.8% | Reduced |
| Geode Capital Management, LLC | 6,243,640 | $1.35B | 0.08% | +229,444+3.8% | Added |
| Dodge & Cox | 7,354,915 | $1.59B | 0.88% | +6,474,330+735.2% | Added |
| State Street Corp | 10,973,921 | $2.38B | 0.08% | +20,323+0.2% | Added |
| Vanguard Portfolio Management LLC | 12,419,279 | $2.69B | 0.14% | +12,419,279 | New |
| Capital World Investors | 13,817,720 | $2.99B | 0.41% | +1,204,349+9.5% | Added |
| FMR LLC | 14,620,963 | $3.17B | 0.17% | −489,719−3.2% | Reduced |
| Vanguard Capital Management LLC | 16,699,898 | $3.62B | 0.09% | +16,699,898 | New |
| BlackRock, Inc. | 19,307,796 | $4.18B | 0.07% | +68,175+0.4% | Added |
| JPMorgan Chase & Co | 19,568,047 | $4.23B | 0.29% | −745,202−3.7% | Reduced |
| Findlay Park Partners LLP | 0 | $0 | 0.00% | −1,025,521−100.0% | Sold out |
| Westfield Capital Management Co LP | 0 | $0 | 0.00% | −259,491−100.0% | Sold out |
| Sands Capital Management, LLC | 0 | $0 | 0.00% | −244,255−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −173,498−100.0% | Sold out |
| Fiera Capital Corp | 0 | $0 | 0.00% | −160,603−100.0% | Sold out |
| Prana Capital Management, LP | 0 | $0 | 0.00% | −119,211−100.0% | Sold out |
| Annex Advisory Services, LLC | 0 | $0 | 0.00% | −102,631−100.0% | Sold out |
| Barlow Wealth Partners, Inc. | 0 | $0 | 0.00% | −88,580−100.0% | Sold out |
| Baltimore-Washington Financial Advisors, Inc. | 0 | $0 | 0.00% | −55,166−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −54,177−100.0% | Sold out |
| 11 Capital Partners LP | 0 | $0 | 0.00% | −53,714−100.0% | Sold out |
| iA Global Asset Management Inc. | 0 | $0 | 0.00% | −52,720−100.0% | Sold out |
| Appleton Partners Inc | 0 | $0 | 0.00% | −49,292−100.0% | Sold out |
| South Street Advisors LLC | 0 | $0 | 0.00% | −48,309−100.0% | Sold out |
| Pelham Capital Ltd. | 0 | $0 | 0.00% | −44,672−100.0% | Sold out |
| CAPROCK Group, Inc. | 0 | $0 | 0.00% | −34,445−100.0% | Sold out |
| Nixon Peabody Trust Co | 0 | $0 | 0.00% | −34,155−100.0% | Sold out |
| KG&L Capital Management,LLC | 0 | $0 | 0.00% | −26,376−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −24,758−100.0% | Sold out |
| HighPoint Advisor Group LLC | 0 | $0 | 0.00% | −19,119−100.0% | Sold out |
| Cumberland Partners Ltd | 0 | $0 | 0.00% | −19,022−100.0% | Sold out |
| Kentucky Retirement Systems | 0 | $0 | 0.00% | −15,922−100.0% | Sold out |
| Neo Ivy Capital Management | 0 | $0 | 0.00% | −15,267−100.0% | Sold out |
| Freedom Day Solutions, LLC | 0 | $0 | 0.00% | −15,146−100.0% | Sold out |
| Brasada Capital Management, LP | 0 | $0 | 0.00% | −14,020−100.0% | Sold out |
| Mizuho Markets Cayman LP | 0 | $0 | 0.00% | −13,165−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −9,327−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −7,770−100.0% | Sold out |
| Coppell Advisory Solutions LLC | 0 | $0 | 0.00% | −7,331−100.0% | Sold out |
| Virtus Investment Advisers, Inc. | 0 | $0 | 0.00% | −7,130−100.0% | Sold out |
| Lombard Odier Asset Management (USA) Corp | 0 | $0 | 0.00% | −6,862−100.0% | Sold out |
| Heritage Family Offices, LLP | 0 | $0 | 0.00% | −6,475−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −6,276−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −6,275−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −6,054−100.0% | Sold out |
| J.W. Cole Advisors, Inc. | 0 | $0 | 0.00% | −6,004−100.0% | Sold out |
| Covenant Partners, LLC | 0 | $0 | 0.00% | −5,288−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −5,210−100.0% | Sold out |
| Pinebridge Investments LLC | 0 | $0 | 0.00% | −4,889−100.0% | Sold out |
| Altfest L J & Co Inc | 0 | $0 | 0.00% | −4,816−100.0% | Sold out |
| RMB Capital Management, LLC | 0 | $0 | 0.00% | −4,585−100.0% | Sold out |
| Schear Investment Advisers, LLC | 0 | $0 | 0.00% | −4,354−100.0% | Sold out |
| Trustmark National Bank Trust Department | 0 | $0 | 0.00% | −4,307−100.0% | Sold out |
| Lebenthal Global Advisors, LLC | 0 | $0 | 0.00% | −4,256−100.0% | Sold out |
| Menard Financial Group LLC | 0 | $0 | 0.00% | −4,148−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −3,902−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −3,531−100.0% | Sold out |
| World Equity Group, Inc. | 0 | $0 | 0.00% | −3,403−100.0% | Sold out |
| Cynosure Management, LLC | 0 | $0 | 0.00% | −3,261−100.0% | Sold out |
| Axxcess Wealth Management, LLC | 0 | $0 | 0.00% | −3,227−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −3,094−100.0% | Sold out |
| Stephens Inc | 0 | $0 | 0.00% | −3,047−100.0% | Sold out |