22 insiders reported 190 Form 4 transactions for Arthur J. Gallagher & Co. (AJG) over the past 18 months (most recent 2026-09-17). Recent activity: CARY RICHARD C (Controller, CAO) Sell 1,000 shares, GALLAGHER J PATRICK JR (CEO) Sell 49,988 shares, Gallagher Patrick Murphy (Chief Operating Officer) Buy 49,988 shares, Hudson Scott R (Vice President) Buy 12,000 shares, Hudson Scott R (Vice President) Sell 12,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-17 | CARY RICHARD C | Controller, CAO | Sell | 1,000 | $252,858 |
| 2026-09-10 | GALLAGHER J PATRICK JR | CEO | Sell | 49,988 | $0 |
| 2026-09-10 | Gallagher Patrick Murphy | Chief Operating Officer | Buy | 49,988 | $0 |
| 2026-09-04 | Hudson Scott R | Vice President | Buy | 12,000 | $1.0M |
| 2026-09-04 | Hudson Scott R | Vice President | Sell | 12,000 | $3.2M |
| 2026-09-02 | Miskel Christopher C. | Director | Buy | 153 | $40,000 |
| 2026-08-26 | Bay Walter D. | General Counsel | Sell | 12,000 | $3.2M |
| 2026-08-20 | Mead Christopher E | VICE PRESIDENT | Buy | 3,500 | $301,595 |
| 2026-08-20 | Mead Christopher E | VICE PRESIDENT | Sell | 3,500 | $899,587 |
| 2026-08-18 | Bloom Mark H. | Vice President | Buy | 1,280 | $0 |
| 2026-08-18 | Bloom Mark H. | Vice President | Sell | 607 | $152,438 |
| 2026-08-07 | Gallagher Patrick Murphy | Chief Operating Officer | Sell | 23,800 | $0 |
| 2026-07-06 | Jain Vishal | VICE PRESIDENT | Buy | 2,163 | $496,490 |
| 2026-07-06 | Pesch Michael Robert | Vice President | Buy | 356 | $81,681 |
| 2026-07-06 | GALLAGHER THOMAS JOSEPH | President | Buy | 352 | $80,796 |
| 2026-06-02 | Miskel Christopher C. | Director | Buy | 194 | $40,000 |
| 2026-06-02 | CARY RICHARD C | Controller, CAO | Sell | 3,000 | $618,000 |
| 2026-06-02 | JOHNSON DAVID S | Director | Buy | 237 | $48,751 |
| 2026-05-28 | Gallagher Patrick Murphy | Chief Operating Officer | Buy | 14,698 | $0 |
| 2026-05-28 | GALLAGHER J PATRICK JR | CEO | Sell | 14,698 | $0 |
| 2026-05-13 | Harries Richard de Winton Wilkin | Director | Buy | 1,110 | $0 |
| 2026-05-13 | Clarke Teresa Hillary | Director | Buy | 1,110 | $0 |
| 2026-05-13 | NICOLETTI RALPH J | Director | Buy | 1,110 | $0 |
| 2026-05-13 | Miskel Christopher C. | Director | Buy | 1,110 | $0 |
| 2026-05-13 | Caplan Deborah H | Director | Buy | 1,110 | $0 |
Source: SEC Form 4 filings · as of 2026-09-17