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 | 1,342 | $69.7B |
| Q2 2025 | 1,380 | $72.9B |
| Q1 2025 | 1,360 | $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 |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 19,568,047 | $4.23B | 0.29% | −745,202−3.7% | Reduced |
| BlackRock, Inc. | 19,307,796 | $4.18B | 0.07% | +68,175+0.4% | Added |
| Vanguard Capital Management LLC | 16,699,898 | $3.62B | 0.09% | +16,699,898 | New |
| FMR LLC | 14,620,963 | $3.17B | 0.17% | −489,719−3.2% | Reduced |
| Capital World Investors | 13,817,720 | $2.99B | 0.41% | +1,204,349+9.5% | Added |
| Vanguard Portfolio Management LLC | 12,419,279 | $2.69B | 0.14% | +12,419,279 | New |
| State Street Corp | 10,973,921 | $2.38B | 0.08% | +20,323+0.2% | Added |
| Dodge & Cox | 7,354,915 | $1.59B | 0.88% | +6,474,330+735.2% | Added |
| Geode Capital Management, LLC | 6,243,640 | $1.35B | 0.08% | +229,444+3.8% | Added |
| Morgan Stanley | 4,056,175 | $878.5M | 0.05% | −3,717,633−47.8% | Reduced |
| Principal Financial Group Inc | 3,242,088 | $702.2M | 0.38% | +409,145+14.4% | Added |
| Capital Research Global Investors | 2,980,131 | $645.4M | 0.10% | +1,431,658+92.5% | Added |
| Eagle Capital Management LLC | 2,665,572 | $577.3M | 1.94% | +2,665,572 | New |
| Capital International Investors | 2,596,653 | $562.3M | 0.13% | −3,683,802−58.7% | Reduced |
| Wellington Management Group LLP | 2,583,359 | $559.5M | 0.10% | −382,624−12.9% | Reduced |
| GTCR LLC | 2,373,773 | $514.1M | 13.60% | +2,373,773 | New |
| WCM Investment Management, LLC | 2,362,513 | $510.2M | 1.16% | −17,781−0.7% | Reduced |
| Northern Trust Corp | 2,229,829 | $482.9M | 0.06% | −4430.0% | Reduced |
| Charles Schwab Investment Management Inc | 2,109,463 | $457.2M | 0.07% | +65,823+3.2% | Added |
| Janus Henderson Group PLC | 1,970,990 | $426.9M | 0.20% | +101,431+5.4% | Added |
| Franklin Resources Inc | 1,954,100 | $423.2M | 0.10% | +1,563,789+400.7% | Added |
| Goldman Sachs Group Inc | 1,953,270 | $423.0M | 0.06% | +241,726+14.1% | Added |
| Bank of America Corp | 1,854,488 | $401.6M | 0.03% | +346,409+23.0% | Added |
| Invesco Ltd. | 1,715,812 | $371.6M | 0.04% | −17,357−1.0% | Reduced |
| Brown Advisory Inc | 1,580,307 | $342.3M | 0.56% | −447,622−22.1% | Reduced |
| UBS Asset Management Americas Inc | 1,449,869 | $314.0M | 0.07% | +3,100+0.2% | Added |
| Vanguard Fiduciary Trust Co | 1,447,832 | $313.6M | 0.08% | +1,447,832 | New |
| Colony Group, LLC | 1,379,397 | $298.8M | 0.33% | +735,269+114.1% | Added |
| Legal & General Group Plc | 1,373,429 | $297.5M | 0.07% | +3,552+0.3% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,301,447 | $281.9M | 0.19% | −1,754,622−57.4% | Reduced |
| Bank of New York Mellon Corp | 1,287,455 | $278.8M | 0.05% | −19,020−1.5% | Reduced |
| FIL Ltd | 1,209,624 | $262.0M | 0.20% | −98,465−7.5% | Reduced |
| Beck Mack & Oliver LLC | 1,062,566 | $230.1M | 4.75% | +183,507+20.9% | Added |
| Brown Brothers Harriman & Co | 1,031,635 | $223.4M | 1.20% | +6,440+0.6% | Added |
| APG Asset Management N.V. | 1,177,502 | $221.3M | 0.70% | −5,357−0.5% | Reduced |
| UBS Group AG | 989,174 | $214.2M | 0.04% | −89,269−8.3% | Reduced |
| T. Rowe Price Investment Management, Inc. | 986,579 | $213.7M | 0.15% | −4,900,959−83.2% | Reduced |
| Envestnet Asset Management Inc | 977,349 | $211.7M | 0.06% | −244,681−20.0% | Reduced |
| Amundi | 939,835 | $203.5M | 0.06% | +9,250+1.0% | Added |
| Alliancebernstein L.P. | 781,086 | $202.1M | 0.07% | −12,022−1.5% | Reduced |
| Guinness Asset Management LTD | 901,899 | $194.8M | 3.36% | +96,366+12.0% | Added |
| Artisan Partners Limited Partnership | 884,899 | $191.7M | 0.31% | +680,061+332.0% | Added |
| Dimensional Fund Advisors LP | 853,192 | $184.8M | 0.04% | +47,588+5.9% | Added |
| Woodline Partners LP | 840,676 | $182.1M | 0.69% | +305,074+57.0% | Added |
| Boston Partners | 808,257 | $175.1M | 0.18% | −21,902−2.6% | Reduced |
| California Public Employees Retirement System | 789,499 | $171.0M | 0.11% | +251,340+46.7% | Added |
| Citadel Advisors LLC | 762,692 | $165.2M | 0.12% | +138,732+22.2% | Added |
| Deutsche Bank AG | 755,049 | $163.5M | 0.05% | +77,055+11.4% | Added |
| Swiss National Bank | 753,660 | $163.2M | 0.09% | +51,040+7.3% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 727,441 | $157.5M | 0.44% | −313,536−30.1% | Reduced |
| Nuveen, LLC | 715,125 | $154.9M | 0.04% | +32,650+4.8% | Added |
| Brandes Investment Partners, LP | 701,260 | $151.9M | 1.07% | +701,260 | New |
| Stonehage Fleming Financial Services Holdings Ltd | 650,099 | $140.8M | 5.12% | −20,004−3.0% | Reduced |
| BLS Capital Fondsmaeglerselskab A/S | 647,008 | $140.1M | 4.77% | +647,008 | New |
| Unisphere Establishment | 635,700 | $137.7M | 1.16% | −8,800−1.4% | Reduced |
| Barclays PLC | 634,333 | $137.4M | 0.05% | −39,952−5.9% | Reduced |
| Cooke & Bieler LP | 622,633 | $134.8M | 1.53% | +622,633 | New |
| Sumitomo Mitsui Trust Holdings, Inc. | 587,811 | $127.3M | 0.08% | +12,121+2.1% | Added |
| Mawer Investment Management Ltd. | 581,276 | $125.9M | 0.82% | −31,755−5.2% | Reduced |
| Vanguard Global Advisers, LLC | 569,533 | $123.3M | 0.07% | +569,533 | New |
| Fenimore Asset Management Inc | 566,766 | $122.8M | 2.74% | +212,326+59.9% | Added |
| Lord, Abbett & Co. LLC | 553,552 | $119.9M | 0.39% | +18,230+3.4% | Added |
| Jupiter Asset Management Ltd | 531,235 | $113.2M | 0.60% | +531,235 | New |
| Bank Julius Baer & Co. Ltd, Zurich | 508,446 | $110.1M | 0.33% | −48,503−8.7% | Reduced |
| Price T Rowe Associates Inc | 499,941 | $108.3M | 0.01% | −67,798−11.9% | Reduced |
| National Pension Service | 498,276 | $107.9M | 0.08% | −10,136−2.0% | Reduced |
| Raymond James Financial Inc | 495,544 | $107.3M | 0.03% | −41,141−7.7% | Reduced |
| Chilton Investment Co LLC | 490,488 | $106.2M | 2.49% | −278,182−36.2% | Reduced |
| Wells Fargo & Company | 484,535 | $104.9M | 0.02% | +3,003+0.6% | Added |
| Royal Bank of Canada | 484,330 | $104.9M | 0.02% | +14,922+3.2% | Added |
| HSBC Holdings PLC | 459,478 | $99.7M | 0.06% | −73,999−13.9% | Reduced |
| Vanguard Asset Management, Ltd | 439,081 | $95.1M | 0.08% | +439,081 | New |
| Bowie Capital Management, LLC | 438,928 | $95.1M | 4.50% | +209,521+91.3% | Added |
| Rhumbline Advisers | 428,774 | $92.9M | 0.08% | −14,098−3.2% | Reduced |
| New York State Common Retirement Fund | 413,071 | $89.5M | 0.12% | +138,508+50.4% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 401,590 | $87.0M | 0.20% | +312,167+349.1% | Added |
| First Pacific Advisors, LP | 387,687 | $84.0M | 1.18% | +387,687 | New |
| CIBC Bancorp USA Inc. | 634,451 | $80.7M | 0.11% | +634,451 | New |
| California State Teachers Retirement System | 369,074 | $79.9M | 0.08% | −9,409−2.5% | Reduced |
| NZS Capital, LLC | 368,965 | $79.9M | 2.67% | +139,261+60.6% | Added |
| Milford Funds Ltd | 358,577 | $77.7M | 1.63% | −73,511−17.0% | Reduced |
| TD Asset Management Inc | 354,367 | $76.7M | 0.06% | −30,162−7.8% | Reduced |
| BNP Paribas Arbitrage, SA | 346,680 | $75.1M | 0.05% | −130,425−27.3% | Reduced |
| Adage Capital Partners GP, L.L.C. | 340,763 | $73.8M | 0.11% | +180,960+113.2% | Added |
| Regions Financial Corp | 340,672 | $73.8M | 0.48% | −7,875−2.3% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 340,214 | $73.8M | 0.13% | −17,885−5.0% | Reduced |
| Lazard Asset Management LLC | 329,019 | $71.3M | 0.12% | +122,781+59.5% | Added |
| Manufacturers Life Insurance Company, The | 322,634 | $69.9M | 0.06% | −102,720−24.1% | Reduced |
| Natixis Advisors, L.P. | 322,329 | $69.8M | 0.10% | +9,207+2.9% | Added |
| Citigroup Inc | 295,088 | $63.9M | 0.04% | +33,194+12.7% | Added |
| Welch & Forbes LLC | 293,288 | $63.5M | 0.82% | −990−0.3% | Reduced |
| Zacks Investment Management | 291,339 | $63.1M | 0.51% | +2,283+0.8% | Added |
| SEI Investments Co | 289,267 | $62.7M | 0.06% | +76,723+36.1% | Added |
| American Century Companies Inc | 280,517 | $60.8M | 0.03% | −2,420−0.9% | Reduced |
| Marshall Wace, LLP | 276,420 | $59.9M | 0.06% | +192,091+227.8% | Added |
| Cincinnati Financial Corp | 261,259 | $56.6M | 1.14% | +75,000+40.3% | Added |
| Welch Group, LLC | 253,012 | $54.8M | 2.06% | +23,787+10.4% | Added |
| Cincinnati Insurance Co | 246,282 | $53.3M | 0.81% | +62,572+34.1% | Added |
| Kornitzer Capital Management Inc | 242,349 | $52.5M | 1.13% | −2,964−1.2% | Reduced |
| Ameriprise Financial Inc | 239,340 | $52.0M | 0.01% | +753+0.3% | Added |