AJG
Arthur J. Gallagher & Co.
Insurance Agents, Brokers & ServiceNYSELarge accelerated filer
Total Trades
116
Buys
3
Sells
70
Largest Trade
N/A
Insiders
16
Institutional Funds
1,163
Inst. Value
$1M+
Activist Filings
9
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| GALLAGHER J PATRICK JR | CEO | EXERCISE | $1M+ | 44K | $79.59 | Mar 5, 2026 |
| GALLAGHER J PATRICK JR | CEO | SELL | $1M+ | 27K | $230.31 | Mar 5, 2026 |
| HOWELL DOUGLAS K | CFO | SELL | $1M+ | 5K | $258.05 | Dec 30, 2025 |
| Mead Christopher E | VICE PRESIDENT | SELL | $1M+ | 4K | $258.11 | Dec 30, 2025 |
| Mead Christopher E | VICE PRESIDENT | EXERCISE | $100K–$500K | 4K | $79.59 | Dec 30, 2025 |
| Bay Walter D. | General Counsel | SELL | $1M+ | 16K | $255.00 | Dec 24, 2025 |
| Bay Walter D. | General Counsel | EXERCISE | $1M+ | 16K | $79.59 | Dec 24, 2025 |
| Mead Christopher E | VICE PRESIDENT | SELL | $100K–$500K | 1K | $250.74 | Nov 25, 2025 |
| CARY RICHARD C | Controller, CAO | SELL | $1M+ | 6K | $261.00 | Nov 20, 2025 |
| Pesch Michael Robert | Vice President | BUY | $500K+ | 4K | $247.12 | Nov 4, 2025 |
| HOWELL DOUGLAS K | CFO | SELL | $1M+ | 14K | $299.42 | Sep 24, 2025 |
| HOWELL DOUGLAS K | CFO | SELL | $500K+ | 3K | $299.78 | Sep 12, 2025 |
| Hudson Scott R | Vice President | EXERCISE | $500K+ | 8K | $79.59 | Sep 9, 2025 |
| Hudson Scott R | Vice President | SELL | $1M+ | 13K | $297.60 | Sep 9, 2025 |
| CARY RICHARD C | Controller, CAO | SELL | $1M+ | 4K | $306.00 | Aug 22, 2025 |
| Pesch Michael Robert | President | BUY | $15K–$50K | 59 | $318.37 | Jun 20, 2025 |
| Hudson Scott R | Vice President | EXERCISE | $500K+ | 11K | $79.59 | May 22, 2025 |
| Hudson Scott R | Vice President | SELL | $1M+ | 11K | $337.17 | May 22, 2025 |
| Pietrucha Susan E | CHRO | SELL | $1M+ | 14K | $344.13 | May 20, 2025 |
| Pietrucha Susan E | CHRO | EXERCISE | $1M+ | 14K | $79.59 | May 20, 2025 |
| JOHNSON DAVID S | Director | SELL | $100K–$500K | 1K | $342.04 | May 20, 2025 |
| CARY RICHARD C | Controller, CAO | SELL | $1M+ | 12K | $339.51 | May 9, 2025 |
| Hudson Scott R | Vice President | SELL | $1M+ | 8K | $333.59 | Mar 21, 2025 |
| Gallagher Patrick Murphy | COO | SELL | $500K+ | 3K | $332.52 | Feb 28, 2025 |
| Gallagher Patrick Murphy | COO | EXERCISE | $100K–$500K | 5K | $70.74 | Feb 28, 2025 |
| Gallagher Patrick Murphy | COO | BUY | $100K–$500K | 1K | $284.14 | Dec 23, 2024 |
| BARRAT SHERRY S | Director | SELL | $100K–$500K | 878 | $294.64 | Nov 12, 2024 |
| Mead Christopher E | VICE PRESIDENT | SELL | $500K+ | 3K | $287.00 | Oct 30, 2024 |
| Mead Christopher E | VICE PRESIDENT | EXERCISE | $100K–$500K | 3K | $70.74 | Oct 30, 2024 |
| HOWELL DOUGLAS K | CFO | EXERCISE | $100K–$500K | 7K | $70.74 | Oct 30, 2024 |
| HOWELL DOUGLAS K | CFO | SELL | $1M+ | 7K | $284.70 | Oct 30, 2024 |
| HOWELL DOUGLAS K | CFO | SELL | $1M+ | 9K | $285.07 | Aug 2, 2024 |
| Hudson Scott R | Vice President | SELL | $1M+ | 10K | $263.45 | Jun 18, 2024 |
| Bay Walter D. | General Counsel | SELL | $1M+ | 8K | $262.74 | Jun 18, 2024 |
| JOHNSON DAVID S | Director | SELL | $100K–$500K | 850 | $257.84 | May 24, 2024 |
| Cavaness Joel D | Vice President | GRANT | N/A | 7K | — | Mar 20, 2024 |
| Cavaness Joel D | Vice President | EXERCISE | $100K–$500K | 16K | $7.61 | Mar 20, 2024 |
| Cavaness Joel D | Vice President | SELL | $100K–$500K | 1K | $255.20 | Mar 20, 2024 |
| Mead Christopher E | VICE PRESIDENT | SELL | $500K+ | 4K | $237.59 | Feb 16, 2024 |
| Mead Christopher E | VICE PRESIDENT | EXERCISE | $100K–$500K | 4K | $55.94 | Feb 16, 2024 |
| HOWELL DOUGLAS K | CFO | SELL | $1M+ | 12K | $238.84 | Feb 16, 2024 |
| GALLAGHER THOMAS JOSEPH | VICE PRESIDENT | EXERCISE | $1M+ | 37K | $56.86 | Feb 13, 2024 |
| GALLAGHER THOMAS JOSEPH | VICE PRESIDENT | SELL | $1M+ | 12K | $237.65 | Feb 13, 2024 |
| JOHNSON DAVID S | Director | SELL | $100K–$500K | 500 | $234.04 | Feb 8, 2024 |
| Gallagher Patrick Murphy | Vice President | EXERCISE | $100K–$500K | 7K | $56.86 | Feb 7, 2024 |
| Gallagher Patrick Murphy | Vice President | SELL | $500K+ | 4K | $236.13 | Feb 7, 2024 |
| HOWELL DOUGLAS K | CFO | SELL | $1M+ | 15K | $226.59 | Dec 22, 2023 |
| HOWELL DOUGLAS K | CFO | EXERCISE | $100K–$500K | 2K | $56.86 | Nov 22, 2023 |
| HOWELL DOUGLAS K | CFO | SELL | $1M+ | 12K | $247.22 | Nov 22, 2023 |
| Ziebell William F | VICE PRESIDENT | EXERCISE | $1M+ | 20K | $76.96 | Nov 7, 2023 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 1,163 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Capital World Investors | 12.6M | $1M+ | SH |
| STATE STREET CORP | 11.0M | $1M+ | SH |
| NORGES BANK | 7.4M | $1M+ | SH |
| Capital International Investors | 6.3M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 5.2M | $1M+ | SH |
| Mitsubishi UFJ Asset Management Co., Ltd. | 3.1M | $1M+ | SH |
| WCM INVESTMENT MANAGEMENT, LLC | 2.4M | $1M+ | SH |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 1.1M | $1M+ | SH |
| Capital Research Global Investors | 1.5M | $1M+ | SH |
| ENVESTNET ASSET MANAGEMENT INC | 1.2M | $1M+ | SH |
| VIKING GLOBAL INVESTORS LP | 1.0M | $1M+ | SH |
| Findlay Park Partners LLP | 1.0M | $1M+ | SH |
| BROWN BROTHERS HARRIMAN & CO | 1.0M | $1M+ | SH |
| APG Asset Management N.V. | 1.2M | $1M+ | SH |
| DODGE & COX | 881K | $1M+ | SH |
| BECK MACK & OLIVER LLC | 879K | $1M+ | SH |
| Guinness Asset Management LTD | 806K | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 785K | $1M+ | SH |
| Swiss National Bank | 703K | $1M+ | SH |
| Stonehage Fleming Financial Services Holdings Ltd | 646K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Feb 13, 2026
5.0%
13.0M shares
SC 13G/A · Jul 16, 2025
6.9%
17.7M shares
SC 13G/A · Apr 22, 2025
6.7%
17.1M shares
SC 13G · Feb 10, 2025
5.0%
12.5M shares
SC 13G · Nov 12, 2024
5.6%
12.3M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
11.8%
25.6M shares
SC 13G · Jan 25, 2024
8.1%
17.4M shares
SC 13G/A · Feb 3, 2023
7.9%
16.7M shares
SC 13G/A · Jan 31, 2022
7.8%
16.3M shares