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 |
|---|---|---|---|---|---|
| Chevy Chase Trust Holdings, Inc. | 127,705 | $27.7M | 0.08% | −3,394−2.6% | Reduced |
| Vanguard Investments Australia, Ltd. | 127,731 | $27.7M | 0.08% | +127,731 | New |
| Baillie Gifford & Co | 133,430 | $28.9M | 0.03% | −731,830−84.6% | Reduced |
| Central Securities Corp | 135,000 | $29.2M | 2.41% | +30,000+28.6% | Added |
| State of Wisconsin Investment Board | 139,518 | $30.2M | 0.07% | +4,809+3.6% | Added |
| Sequoia Financial Advisors, LLC | 139,833 | $30.3M | 0.17% | +7,239+5.5% | Added |
| Ceredex Value Advisors LLC | 142,729 | $30.9M | 0.97% | −20,588−12.6% | Reduced |
| Voya Investment Management LLC | 143,216 | $31.0M | 0.03% | +6,954+5.1% | Added |
| Storebrand Asset Management AS | 144,592 | $31.3M | 0.09% | −7,704−5.1% | Reduced |
| AQR Capital Management LLC | 147,092 | $31.8M | 0.01% | −706−0.5% | Reduced |
| Royal London Asset Management Ltd | 147,419 | $31.9M | 0.07% | −346−0.2% | Reduced |
| Freestone Grove Partners LP | 150,106 | $32.5M | 0.24% | +146,956+4,665.3% | Added |
| Danske Bank A/S | 151,037 | $32.7M | 0.08% | −723−0.5% | Reduced |
| Gateway Investment Advisers LLC | 151,784 | $32.9M | 0.37% | −32,370−17.6% | Reduced |
| Woodley Farra Manion Portfolio Management Inc | 155,721 | $33.7M | 1.64% | +3,117+2.0% | Added |
| Capital International Sarl | 156,934 | $34.0M | 0.56% | +5,645+3.7% | Added |
| Quantinno Capital Management LP | 156,950 | $34.0M | 0.06% | +39,893+34.1% | Added |
| Benjamin Edwards Inc | 157,298 | $34.1M | 0.34% | −4,915−3.0% | Reduced |
| Toroso Investments, LLC | 158,188 | $34.2M | 0.11% | +152,515+2,688.4% | Added |
| ASR Vermogensbeheer N.V. | 159,959 | $34.6M | 0.41% | +14,958+10.3% | Added |
| King Luther Capital Management Corp | 161,667 | $35.0M | 0.15% | −34,397−17.5% | Reduced |
| Nomura Asset Management Co Ltd | 164,861 | $35.7M | 0.09% | −10,155−5.8% | Reduced |
| Employees Retirement System of Texas | 165,200 | $35.8M | 0.31% | −8,800−5.1% | Reduced |
| LPL Financial LLC | 166,145 | $36.0M | 0.01% | −38,167−18.7% | Reduced |
| Westwood Holdings Group Inc. | 169,114 | $36.6M | 0.27% | −45,647−21.3% | Reduced |
| Alyeska Investment Group, L.P. | 169,585 | $36.7M | 0.10% | +169,585 | New |
| First Trust Advisors LP | 170,126 | $36.8M | 0.03% | +153,187+904.3% | Added |
| Nissay Asset Management Corp | 171,320 | $37.1M | 0.20% | +67,243+64.6% | Added |
| Sandhill Capital Partners LLC | 172,035 | $37.3M | 3.20% | +29,126+20.4% | Added |
| Stifel Financial Corp | 174,354 | $37.8M | 0.03% | −8,100−4.4% | Reduced |
| New York State Teachers Retirement System | 176,619 | $38.3M | 0.08% | 00.0% | Unchanged |
| Fort Washington Investment Advisors Inc | 183,381 | $39.7M | 0.22% | +6,813+3.9% | Added |
| Federation des caisses Desjardins du Quebec | 184,027 | $39.9M | 0.14% | −28,329−13.3% | Reduced |
| Old Republic International Corporation | 190,800 | $41.3M | 1.64% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 191,075 | $41.4M | 0.07% | +6,676+3.6% | Added |
| Great West Life Assurance Co | 196,139 | $42.6M | 0.08% | +2,798+1.4% | Added |
| Retirement Systems of Alabama | 200,960 | $43.5M | 0.15% | −600.0% | Reduced |
| Capital International Inc | 201,048 | $43.5M | 0.34% | −12,637−5.9% | Reduced |
| Korea Investment CORP | 203,044 | $44.0M | 0.09% | +85,834+73.2% | Added |
| Fisher Funds Management LTD | 207,219 | $44.9M | 1.32% | +69,379+50.3% | Added |
| Aviva PLC | 211,415 | $45.8M | 0.08% | +6,083+3.0% | Added |
| Jones Financial Companies LLLP | 222,038 | $46.0M | 0.02% | +208,966+1,598.6% | Added |
| Russell Investments Group, Ltd. | 217,969 | $47.2M | 0.05% | −44,089−16.8% | Reduced |
| Fifth Third Bancorp | 218,950 | $47.4M | 0.09% | +195,344+827.5% | Added |
| State Board of Administration of Florida Retirement System | 219,600 | $47.6M | 0.09% | −1,133−0.5% | Reduced |
| Bank of Montreal | 224,518 | $48.6M | 0.02% | −131,189−36.9% | Reduced |
| Millennium Management LLC | 234,020 | $50.7M | 0.04% | +210,232+883.8% | Added |
| Balyasny Asset Management LLC | 238,987 | $51.8M | 0.10% | +227,617+2,001.9% | Added |
| Ameriprise Financial Inc | 239,340 | $52.0M | 0.01% | +753+0.3% | Added |
| Kornitzer Capital Management Inc | 242,349 | $52.5M | 1.13% | −2,964−1.2% | Reduced |
| Cincinnati Insurance Co | 246,282 | $53.3M | 0.81% | +62,572+34.1% | Added |
| Welch Group, LLC | 253,012 | $54.8M | 2.06% | +23,787+10.4% | Added |
| Cincinnati Financial Corp | 261,259 | $56.6M | 1.14% | +75,000+40.3% | Added |
| Marshall Wace, LLP | 276,420 | $59.9M | 0.06% | +192,091+227.8% | Added |
| American Century Companies Inc | 280,517 | $60.8M | 0.03% | −2,420−0.9% | Reduced |
| SEI Investments Co | 289,267 | $62.7M | 0.06% | +76,723+36.1% | Added |
| Zacks Investment Management | 291,339 | $63.1M | 0.51% | +2,283+0.8% | Added |
| Welch & Forbes LLC | 293,288 | $63.5M | 0.82% | −990−0.3% | Reduced |
| Citigroup Inc | 295,088 | $63.9M | 0.04% | +33,194+12.7% | Added |
| Natixis Advisors, L.P. | 322,329 | $69.8M | 0.10% | +9,207+2.9% | Added |
| Manufacturers Life Insurance Company, The | 322,634 | $69.9M | 0.06% | −102,720−24.1% | Reduced |
| Lazard Asset Management LLC | 329,019 | $71.3M | 0.12% | +122,781+59.5% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 340,214 | $73.8M | 0.13% | −17,885−5.0% | Reduced |
| Regions Financial Corp | 340,672 | $73.8M | 0.48% | −7,875−2.3% | Reduced |
| Adage Capital Partners GP, L.L.C. | 340,763 | $73.8M | 0.11% | +180,960+113.2% | Added |
| BNP Paribas Arbitrage, SA | 346,680 | $75.1M | 0.05% | −130,425−27.3% | Reduced |
| TD Asset Management Inc | 354,367 | $76.7M | 0.06% | −30,162−7.8% | Reduced |
| Milford Funds Ltd | 358,577 | $77.7M | 1.63% | −73,511−17.0% | Reduced |
| NZS Capital, LLC | 368,965 | $79.9M | 2.67% | +139,261+60.6% | Added |
| California State Teachers Retirement System | 369,074 | $79.9M | 0.08% | −9,409−2.5% | Reduced |
| CIBC Bancorp USA Inc. | 634,451 | $80.7M | 0.11% | +634,451 | New |
| First Pacific Advisors, LP | 387,687 | $84.0M | 1.18% | +387,687 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 401,590 | $87.0M | 0.20% | +312,167+349.1% | Added |
| New York State Common Retirement Fund | 413,071 | $89.5M | 0.12% | +138,508+50.4% | Added |
| Rhumbline Advisers | 428,774 | $92.9M | 0.08% | −14,098−3.2% | Reduced |
| Bowie Capital Management, LLC | 438,928 | $95.1M | 4.50% | +209,521+91.3% | Added |
| Vanguard Asset Management, Ltd | 439,081 | $95.1M | 0.08% | +439,081 | New |
| HSBC Holdings PLC | 459,478 | $99.7M | 0.06% | −73,999−13.9% | Reduced |
| Royal Bank of Canada | 484,330 | $104.9M | 0.02% | +14,922+3.2% | Added |
| Wells Fargo & Company | 484,535 | $104.9M | 0.02% | +3,003+0.6% | Added |
| Chilton Investment Co LLC | 490,488 | $106.2M | 2.49% | −278,182−36.2% | Reduced |
| Raymond James Financial Inc | 495,544 | $107.3M | 0.03% | −41,141−7.7% | Reduced |
| National Pension Service | 498,276 | $107.9M | 0.08% | −10,136−2.0% | Reduced |
| Price T Rowe Associates Inc | 499,941 | $108.3M | 0.01% | −67,798−11.9% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 508,446 | $110.1M | 0.33% | −48,503−8.7% | Reduced |
| Jupiter Asset Management Ltd | 531,235 | $113.2M | 0.60% | +531,235 | New |
| Lord, Abbett & Co. LLC | 553,552 | $119.9M | 0.39% | +18,230+3.4% | Added |
| Fenimore Asset Management Inc | 566,766 | $122.8M | 2.74% | +212,326+59.9% | Added |
| Vanguard Global Advisers, LLC | 569,533 | $123.3M | 0.07% | +569,533 | New |
| Mawer Investment Management Ltd. | 581,276 | $125.9M | 0.82% | −31,755−5.2% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 587,811 | $127.3M | 0.08% | +12,121+2.1% | Added |
| Cooke & Bieler LP | 622,633 | $134.8M | 1.53% | +622,633 | New |
| Barclays PLC | 634,333 | $137.4M | 0.05% | −39,952−5.9% | Reduced |
| Unisphere Establishment | 635,700 | $137.7M | 1.16% | −8,800−1.4% | Reduced |
| BLS Capital Fondsmaeglerselskab A/S | 647,008 | $140.1M | 4.77% | +647,008 | New |
| Stonehage Fleming Financial Services Holdings Ltd | 650,099 | $140.8M | 5.12% | −20,004−3.0% | Reduced |
| Brandes Investment Partners, LP | 701,260 | $151.9M | 1.07% | +701,260 | New |
| Nuveen, LLC | 715,125 | $154.9M | 0.04% | +32,650+4.8% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 727,441 | $157.5M | 0.44% | −313,536−30.1% | Reduced |
| Swiss National Bank | 753,660 | $163.2M | 0.09% | +51,040+7.3% | Added |