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 |
|---|---|---|---|---|---|
| Balyasny Asset Management LLC | 238,987 | $51.8M | 0.10% | +227,617+2,001.9% | Added |
| Millennium Management LLC | 234,020 | $50.7M | 0.04% | +210,232+883.8% | Added |
| Bank of Montreal | 224,518 | $48.6M | 0.02% | −131,189−36.9% | Reduced |
| State Board of Administration of Florida Retirement System | 219,600 | $47.6M | 0.09% | −1,133−0.5% | Reduced |
| Fifth Third Bancorp | 218,950 | $47.4M | 0.09% | +195,344+827.5% | Added |
| Russell Investments Group, Ltd. | 217,969 | $47.2M | 0.05% | −44,089−16.8% | Reduced |
| Jones Financial Companies LLLP | 222,038 | $46.0M | 0.02% | +208,966+1,598.6% | Added |
| Aviva PLC | 211,415 | $45.8M | 0.08% | +6,083+3.0% | Added |
| Fisher Funds Management LTD | 207,219 | $44.9M | 1.32% | +69,379+50.3% | Added |
| Korea Investment CORP | 203,044 | $44.0M | 0.09% | +85,834+73.2% | Added |
| Capital International Inc | 201,048 | $43.5M | 0.34% | −12,637−5.9% | Reduced |
| Retirement Systems of Alabama | 200,960 | $43.5M | 0.15% | −600.0% | Reduced |
| Great West Life Assurance Co | 196,139 | $42.6M | 0.08% | +2,798+1.4% | Added |
| Standard Life Aberdeen plc | 191,075 | $41.4M | 0.07% | +6,676+3.6% | Added |
| Old Republic International Corporation | 190,800 | $41.3M | 1.64% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 184,027 | $39.9M | 0.14% | −28,329−13.3% | Reduced |
| Fort Washington Investment Advisors Inc | 183,381 | $39.7M | 0.22% | +6,813+3.9% | Added |
| New York State Teachers Retirement System | 176,619 | $38.3M | 0.08% | 00.0% | Unchanged |
| Stifel Financial Corp | 174,354 | $37.8M | 0.03% | −8,100−4.4% | Reduced |
| Sandhill Capital Partners LLC | 172,035 | $37.3M | 3.20% | +29,126+20.4% | Added |
| Nissay Asset Management Corp | 171,320 | $37.1M | 0.20% | +67,243+64.6% | Added |
| First Trust Advisors LP | 170,126 | $36.8M | 0.03% | +153,187+904.3% | Added |
| Alyeska Investment Group, L.P. | 169,585 | $36.7M | 0.10% | +169,585 | New |
| Westwood Holdings Group Inc. | 169,114 | $36.6M | 0.27% | −45,647−21.3% | Reduced |
| LPL Financial LLC | 166,145 | $36.0M | 0.01% | −38,167−18.7% | Reduced |
| Employees Retirement System of Texas | 165,200 | $35.8M | 0.31% | −8,800−5.1% | Reduced |
| Nomura Asset Management Co Ltd | 164,861 | $35.7M | 0.09% | −10,155−5.8% | Reduced |
| King Luther Capital Management Corp | 161,667 | $35.0M | 0.15% | −34,397−17.5% | Reduced |
| ASR Vermogensbeheer N.V. | 159,959 | $34.6M | 0.41% | +14,958+10.3% | Added |
| Toroso Investments, LLC | 158,188 | $34.2M | 0.11% | +152,515+2,688.4% | Added |
| Benjamin Edwards Inc | 157,298 | $34.1M | 0.34% | −4,915−3.0% | Reduced |
| Quantinno Capital Management LP | 156,950 | $34.0M | 0.06% | +39,893+34.1% | Added |
| Capital International Sarl | 156,934 | $34.0M | 0.56% | +5,645+3.7% | Added |
| Woodley Farra Manion Portfolio Management Inc | 155,721 | $33.7M | 1.64% | +3,117+2.0% | Added |
| Gateway Investment Advisers LLC | 151,784 | $32.9M | 0.37% | −32,370−17.6% | Reduced |
| Danske Bank A/S | 151,037 | $32.7M | 0.08% | −723−0.5% | Reduced |
| Freestone Grove Partners LP | 150,106 | $32.5M | 0.24% | +146,956+4,665.3% | Added |
| Royal London Asset Management Ltd | 147,419 | $31.9M | 0.07% | −346−0.2% | Reduced |
| AQR Capital Management LLC | 147,092 | $31.8M | 0.01% | −706−0.5% | Reduced |
| Storebrand Asset Management AS | 144,592 | $31.3M | 0.09% | −7,704−5.1% | Reduced |
| Voya Investment Management LLC | 143,216 | $31.0M | 0.03% | +6,954+5.1% | Added |
| Ceredex Value Advisors LLC | 142,729 | $30.9M | 0.97% | −20,588−12.6% | Reduced |
| Sequoia Financial Advisors, LLC | 139,833 | $30.3M | 0.17% | +7,239+5.5% | Added |
| State of Wisconsin Investment Board | 139,518 | $30.2M | 0.07% | +4,809+3.6% | Added |
| Central Securities Corp | 135,000 | $29.2M | 2.41% | +30,000+28.6% | Added |
| Baillie Gifford & Co | 133,430 | $28.9M | 0.03% | −731,830−84.6% | Reduced |
| Vanguard Investments Australia, Ltd. | 127,731 | $27.7M | 0.08% | +127,731 | New |
| Chevy Chase Trust Holdings, Inc. | 127,705 | $27.7M | 0.08% | −3,394−2.6% | Reduced |
| Asset Management One Co.,Ltd. | 127,509 | $27.6M | 0.08% | −160.0% | Reduced |
| Dearborn Partners LLC | 125,858 | $27.3M | 1.48% | −8,078−6.0% | Reduced |
| United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund | 125,585 | $27.2M | 0.51% | +8,600+7.4% | Added |
| Prudential Financial Inc | 123,053 | $26.7M | 0.03% | −3,107−2.5% | Reduced |
| KBC Group NV | 122,358 | $26.5M | 0.07% | −21,321−14.8% | Reduced |
| The PNC Financial Services Group, Inc. | 119,356 | $25.9M | 0.01% | +32,423+37.3% | Added |
| Life Cycle Investment Partners Ltd | 118,818 | $25.7M | 0.16% | +42,643+56.0% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 118,087 | $25.6M | 0.06% | −27,092−18.7% | Reduced |
| Gillson Capital LP | 115,742 | $25.1M | 2.05% | +115,742 | New |
| Credit Agricole S A | 115,259 | $25.0M | 0.08% | −191,129−62.4% | Reduced |
| Massachusetts Financial Services Co | 114,514 | $24.8M | 0.01% | −20,398−15.1% | Reduced |
| Canada Pension Plan Investment Board | 112,832 | $24.4M | 0.02% | +33,317+41.9% | Added |
| DekaBank Deutsche Girozentrale | 109,639 | $24.1M | 0.04% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 110,629 | $24.0M | 0.03% | −43,775−28.4% | Reduced |
| Cullen/Frost Bankers, Inc. | 110,386 | $23.9M | 0.27% | +3,228+3.0% | Added |
| Treasurer of the State of North Carolina | 108,569 | $23.5M | 0.07% | +2,315+2.2% | Added |
| Toronto Dominion Bank | 107,353 | $23.3M | 0.04% | −56,202−34.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 104,503 | $22.6M | 0.05% | −1,055−1.0% | Reduced |
| Cornerstone Capital, Inc. | 103,213 | $22.4M | 2.23% | +5,068+5.2% | Added |
| Public Employees Retirement System of Ohio | 100,800 | $21.8M | 0.07% | −433−0.4% | Reduced |
| Nomura Asset Management International Inc. | 99,164 | $21.5M | 0.04% | +7,081+7.7% | Added |
| Lighthouse Investment Partners, LLC | 99,104 | $21.5M | 0.81% | +40,216+68.3% | Added |
| Premier Fund Managers Ltd | 99,264 | $21.4M | 1.52% | −6,239−5.9% | Reduced |
| Distillate Capital Partners LLC | 98,409 | $21.3M | 1.12% | +22,166+29.1% | Added |
| Mn Services Vermogensbeheer B.V. | 97,921 | $21.2M | 0.14% | −700−0.7% | Reduced |
| Philo Smith Capital Corp | 97,725 | $21.2M | 6.04% | +10,000+11.4% | Added |
| Professional Advisory Services Inc | 97,081 | $21.0M | 2.90% | +18,633+23.8% | Added |
| State of Tennessee, Treasury Department | 96,780 | $21.0M | 0.07% | −12,688−11.6% | Reduced |
| ARS Investment Partners, LLC | 95,135 | $20.6M | 1.07% | +12,381+15.0% | Added |
| KLP Kapitalforvaltning AS | 94,530 | $20.5M | 0.08% | +4,040+4.5% | Added |
| Creative Planning | 94,112 | $20.4M | 0.01% | +7,791+9.0% | Added |
| CI Private Wealth, LLC | 93,146 | $20.2M | 0.03% | −5,047−5.1% | Reduced |
| Swedbank AB | 93,055 | $20.2M | 0.02% | −268−0.3% | Reduced |
| Truist Financial Corp | 92,123 | $20.0M | 0.03% | −16,020−14.8% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 90,874 | $19.7M | 0.11% | +14,920+19.6% | Added |
| Verition Fund Management LLC | 90,646 | $19.6M | 0.19% | +85,305+1,597.2% | Added |
| Generate Investment Management Ltd | 90,000 | $19.5M | 0.96% | +60,000+200.0% | Added |
| State of New Jersey Common Pension Fund D | 88,079 | $19.1M | 0.07% | −219−0.2% | Reduced |
| Handelsbanken Fonder AB | 87,617 | $19.0M | 0.06% | +1,186+1.4% | Added |
| Victory Capital Management Inc | 87,133 | $18.9M | 0.01% | +1,652+1.9% | Added |
| Assetmark, Inc | 86,198 | $18.7M | 0.04% | +12,822+17.5% | Added |
| Calamos Advisors LLC | 85,528 | $18.5M | 0.07% | 00.0% | Unchanged |
| Eventide Asset Management, LLC | 83,670 | $18.1M | 0.30% | −56,204−40.2% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 82,088 | $17.8M | 0.09% | −146−0.2% | Reduced |
| Resona Asset Management Co.,Ltd. | 81,877 | $17.7M | 0.09% | −9,446−10.3% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 81,385 | $17.6M | 0.02% | −14,778−15.4% | Reduced |
| MML Investors Services, LLC | 81,354 | $17.6M | 0.05% | −95,975−54.1% | Reduced |
| Capital International Ltd | 79,967 | $17.3M | 0.64% | −1,040−1.3% | Reduced |
| Renaissance Technologies LLC | 76,600 | $16.6M | 0.03% | +72,280+1,673.1% | Added |
| Tredje AP-fonden | 76,062 | $16.5M | 0.09% | −33,150−30.4% | Reduced |
| Mountain Pacific Investment Advisers Inc | 75,490 | $16.3M | 2.80% | +1,759+2.4% | Added |
| Blair William & Co | 74,948 | $16.2M | 0.05% | −13,790−15.5% | Reduced |