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, Q4 2025
Institutional positions in Arthur J. Gallagher & Co. as of Dec 31, 2025. 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
- 1,299
- −14 vs. Q3 2025
- Shares held
- 234.2M
- +9.18M (+4.1%) vs. Q3 2025
- Total value
- $60.6B
- −$9.03B (−13.0%) vs. Q3 2025
- New holders
- 159
- 393 more added
- Sold out
- 173
- 566 more reduced
28 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Artisan Partners Limited Partnership | 204,838 | $53.0M | 0.08% | +204,838 | New |
| Aviva PLC | 205,332 | $53.1M | 0.09% | +7,276+3.7% | Added |
| Lazard Asset Management LLC | 206,238 | $53.4M | 0.09% | +206,238 | New |
| Federation des caisses Desjardins du Quebec | 212,356 | $54.9M | 0.21% | +55,373+35.3% | Added |
| SEI Investments Co | 212,544 | $55.0M | 0.05% | +7,708+3.8% | Added |
| Capital International Inc | 213,685 | $55.3M | 0.44% | −2,204−1.0% | Reduced |
| Westwood Holdings Group Inc. | 214,761 | $55.6M | 0.45% | −6,990−3.2% | Reduced |
| State Board of Administration of Florida Retirement System | 220,733 | $57.1M | 0.10% | −4,030−1.8% | Reduced |
| Welch Group, LLC | 229,225 | $59.3M | 2.29% | +2,711+1.2% | Added |
| Bowie Capital Management, LLC | 229,407 | $59.4M | 2.45% | +123,211+116.0% | Added |
| NZS Capital, LLC | 229,704 | $59.4M | 1.82% | +229,704 | New |
| Ameriprise Financial Inc | 238,587 | $61.8M | 0.01% | −900−0.4% | Reduced |
| Sands Capital Management, LLC | 244,255 | $63.2M | 0.19% | −849,815−77.7% | Reduced |
| Kornitzer Capital Management Inc | 245,313 | $63.5M | 1.32% | −1,786−0.7% | Reduced |
| Westfield Capital Management Co LP | 259,491 | $67.2M | 0.28% | −8,218−3.1% | Reduced |
| Citigroup Inc | 261,894 | $67.8M | 0.05% | +59,373+29.3% | Added |
| Russell Investments Group, Ltd. | 262,058 | $67.9M | 0.07% | −41,796−13.8% | Reduced |
| New York State Common Retirement Fund | 274,563 | $71.1M | 0.09% | −53,076−16.2% | Reduced |
| American Century Companies Inc | 282,937 | $73.2M | 0.04% | −83,715−22.8% | Reduced |
| Zacks Investment Management | 289,056 | $74.8M | 0.59% | −7,822−2.6% | Reduced |
| Welch & Forbes LLC | 294,278 | $76.2M | 0.92% | +1,508+0.5% | Added |
| Credit Agricole S A | 306,388 | $79.3M | 0.22% | −1,410−0.5% | Reduced |
| Natixis Advisors, L.P. | 313,122 | $81.0M | 0.11% | −22,126−6.6% | Reduced |
| Regions Financial Corp | 348,547 | $90.2M | 0.58% | −8,328−2.3% | Reduced |
| Fenimore Asset Management Inc | 354,440 | $91.7M | 1.91% | −861−0.2% | Reduced |
| Bank of Montreal | 355,707 | $92.1M | 0.04% | +117,385+49.3% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 358,099 | $92.8M | 0.15% | +510.0% | Added |
| California State Teachers Retirement System | 378,483 | $97.9M | 0.10% | −8,027−2.1% | Reduced |
| TD Asset Management Inc | 384,529 | $99.5M | 0.08% | −3,529−0.9% | Reduced |
| Franklin Resources Inc | 390,311 | $101.0M | 0.02% | −35,738−8.4% | Reduced |
| Allianz Asset Management GmbH | 394,219 | $102.0M | 0.12% | −176,346−30.9% | Reduced |
| Manufacturers Life Insurance Company, The | 425,354 | $110.1M | 0.09% | −117,521−21.6% | Reduced |
| Milford Funds Ltd | 432,088 | $111.8M | 2.20% | +432,088 | New |
| Rhumbline Advisers | 442,872 | $114.6M | 0.09% | −9,056−2.0% | Reduced |
| Global Retirement Partners, LLC | 445,401 | $115.3M | 2.05% | −57,624−11.5% | Reduced |
| Royal Bank of Canada | 469,408 | $121.5M | 0.02% | −348,651−42.6% | Reduced |
| CCLA Investment Management Ltd | 470,291 | $121.7M | 1.95% | −4,891−1.0% | Reduced |
| BNP Paribas Arbitrage, SA | 477,105 | $123.5M | 0.08% | +128,675+36.9% | Added |
| Wells Fargo & Company | 481,532 | $124.6M | 0.02% | +33,965+7.6% | Added |
| National Pension Service | 508,412 | $131.6M | 0.10% | +30,784+6.4% | Added |
| HSBC Holdings PLC | 533,477 | $138.5M | 0.08% | −26,404−4.7% | Reduced |
| Lord, Abbett & Co. LLC | 535,322 | $138.5M | 0.43% | −9,783−1.8% | Reduced |
| Woodline Partners LP | 535,602 | $138.6M | 0.54% | +535,602 | New |
| Raymond James Financial Inc | 536,685 | $138.9M | 0.04% | −60,935−10.2% | Reduced |
| California Public Employees Retirement System | 538,159 | $139.3M | 0.08% | −287,669−34.8% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 556,949 | $144.5M | 0.40% | −2,194−0.4% | Reduced |
| Price T Rowe Associates Inc | 567,739 | $146.9M | 0.02% | +171,278+43.2% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 575,690 | $149.0M | 0.09% | −19,675−3.3% | Reduced |
| Mawer Investment Management Ltd. | 613,031 | $158.6M | 0.89% | −33,267−5.1% | Reduced |
| Citadel Advisors LLC | 623,960 | $161.5M | 0.11% | +512,742+461.0% | Added |
| Colony Group, LLC | 644,128 | $166.7M | 0.19% | +600,252+1,368.1% | Added |
| Unisphere Establishment | 644,500 | $166.8M | 1.25% | +107,000+19.9% | Added |
| Stonehage Fleming Financial Services Holdings Ltd | 670,103 | $173.4M | 5.33% | +207,507+44.9% | Added |
| Barclays PLC | 674,285 | $174.5M | 0.07% | −136,959−16.9% | Reduced |
| Deutsche Bank AG | 677,994 | $175.5M | 0.06% | −216,568−24.2% | Reduced |
| Nuveen, LLC | 682,475 | $176.6M | 0.05% | −4,061−0.6% | Reduced |
| Swiss National Bank | 702,620 | $181.8M | 0.11% | −35,680−4.8% | Reduced |
| Chilton Investment Co LLC | 768,670 | $198.9M | 4.15% | +2,875+0.4% | Added |
| Alliancebernstein L.P. | 793,108 | $205.2M | 0.06% | −242,524−23.4% | Reduced |
| Dimensional Fund Advisors LP | 805,604 | $208.5M | 0.04% | +110,066+15.8% | Added |
| Guinness Asset Management LTD | 805,533 | $211.5M | 3.43% | −25,592−3.1% | Reduced |
| Boston Partners | 830,159 | $214.8M | 0.22% | −202,094−19.6% | Reduced |
| Baillie Gifford & Co | 865,260 | $223.9M | 0.19% | −43,625−4.8% | Reduced |
| Beck Mack & Oliver LLC | 879,059 | $227.5M | 4.13% | +144,980+19.7% | Added |
| Dodge & Cox | 880,585 | $227.9M | 0.12% | +880,585 | New |
| Amundi | 930,585 | $240.8M | 0.07% | +369,716+65.9% | Added |
| APG Asset Management N.V. | 1,182,859 | $260.6M | 0.74% | −15,019−1.3% | Reduced |
| Brown Brothers Harriman & Co | 1,025,195 | $265.3M | 1.45% | −44,520−4.2% | Reduced |
| Findlay Park Partners LLP | 1,025,521 | $265.4M | 3.39% | −44,380−4.1% | Reduced |
| Viking Global Investors LPSuperinvestorViking Global Investors | 1,040,977 | $269.4M | 0.71% | +1,040,977 | New |
| UBS Group AG | 1,078,443 | $279.1M | 0.06% | +238,146+28.3% | Added |
| Envestnet Asset Management Inc | 1,222,030 | $316.2M | 0.09% | −192,070−13.6% | Reduced |
| Bank of New York Mellon Corp | 1,306,475 | $338.1M | 0.06% | −54,394−4.0% | Reduced |
| FIL Ltd | 1,308,089 | $338.5M | 0.25% | −58,291−4.3% | Reduced |
| Legal & General Group Plc | 1,369,877 | $354.5M | 0.08% | −15,825−1.1% | Reduced |
| UBS Asset Management Americas Inc | 1,446,769 | $374.4M | 0.08% | −77,792−5.1% | Reduced |
| Bank of America Corp | 1,508,079 | $390.3M | 0.03% | −57,918−3.7% | Reduced |
| Capital Research Global Investors | 1,548,473 | $400.7M | 0.07% | +7,920+0.5% | Added |
| Goldman Sachs Group Inc | 1,711,544 | $442.9M | 0.06% | +309,361+22.1% | Added |
| Invesco Ltd. | 1,733,169 | $448.5M | 0.04% | +85,545+5.2% | Added |
| Janus Henderson Group PLC | 1,869,559 | $483.9M | 0.22% | +239,272+14.7% | Added |
| Brown Advisory Inc | 2,027,929 | $524.8M | 0.73% | −489,993−19.5% | Reduced |
| Charles Schwab Investment Management Inc | 2,043,640 | $528.9M | 0.08% | +14,682+0.7% | Added |
| Northern Trust Corp | 2,230,272 | $577.2M | 0.07% | −87,079−3.8% | Reduced |
| WCM Investment Management, LLC | 2,380,294 | $623.2M | 1.28% | −51,704−2.1% | Reduced |
| Principal Financial Group Inc | 2,832,943 | $733.2M | 0.37% | −33,843−1.2% | Reduced |
| Wellington Management Group LLP | 2,965,983 | $767.6M | 0.13% | −304,824−9.3% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 3,056,069 | $782.4M | 0.53% | −51,321−1.7% | Reduced |
| T. Rowe Price Investment Management, Inc. | 5,887,538 | $1.52B | 0.96% | +3,253,498+123.5% | Added |
| Geode Capital Management, LLC | 6,014,196 | $1.55B | 0.10% | +12,190+0.2% | Added |
| Capital International Investors | 6,280,455 | $1.63B | 0.25% | −914,288−12.7% | Reduced |
| Norges Bank | 7,438,704 | $1.93B | 0.21% | +7,438,704 | New |
| Morgan Stanley | 7,773,808 | $2.01B | 0.12% | −811,982−9.5% | Reduced |
| State Street Corp | 10,953,598 | $2.83B | 0.10% | +62,518+0.6% | Added |
| Capital World Investors | 12,613,371 | $3.26B | 0.44% | +830,252+7.0% | Added |
| FMR LLC | 15,110,682 | $3.91B | 0.20% | +2,578,081+20.6% | Added |
| BlackRock, Inc. | 19,239,621 | $4.98B | 0.08% | +675,641+3.6% | Added |
| JPMorgan Chase & Co | 20,313,249 | $5.26B | 0.35% | −25,284−0.1% | Reduced |
| Vanguard Group Inc | 31,390,446 | $8.12B | 0.12% | +217,136+0.7% | Added |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −145,184−100.0% | Sold out |