AJG (Arthur J. Gallagher & Co.)
Insider Trading Activity
Every open-market purchase and sale reported by AJG officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-26 | Walter D. Bay | General Counsel | Sell | — | — |
| 2026-08-20 | Christopher E Mead | VICE PRESIDENT | MIXED | — | — |
| 2026-08-18 | Mark H. Bloom | Vice President | MIXED | — | — |
| 2026-08-07 | Patrick Murphy Gallagher | Chief Operating Officer | G | — | — |
| 2026-08-07 | Patrick Murphy Gallagher | Chief Operating Officer | G | — | — |
| 2026-07-06 | Vishal Jain | VICE PRESIDENT | M | — | — |
| 2026-07-06 | THOMAS JOSEPH GALLAGHER | President | M | — | — |
| 2026-07-06 | Michael Robert Pesch | Vice President | M | — | — |
| 2026-06-24 | DOUGLAS K HOWELL | VP & Chief Financial Officer | I | — | — |
| 2026-06-02 | Christopher C. Miskel | Director | A | — | — |
| 2026-06-02 | DAVID S JOHNSON | Director | A | — | — |
| 2026-06-02 | RICHARD C CARY | Controller, CAO | Sell | — | — |
| 2026-05-28 | J PATRICK JR GALLAGHER | CEO | G | — | — |
| 2026-05-28 | Patrick Murphy Gallagher | Chief Operating Officer | G | — | — |
| 2026-05-13 | NORMAN L ROSENTHAL | Director | A | — | — |
| 2026-05-13 | RALPH J NICOLETTI | Director | A | — | — |
| 2026-05-13 | Christopher C. Miskel | Director | A | — | — |
| 2026-05-13 | DAVID S JOHNSON | Director | A | — | — |
| 2026-05-13 | Richard de Winton Wilkin Harries | Director | A | — | — |
| 2026-05-13 | David John Coldman | Director | A | — | — |
| 2026-05-13 | Teresa Hillary Clarke | Director | A | — | — |
| 2026-05-13 | Deborah H Caplan | Director | A | — | — |
| 2026-04-02 | William F Ziebell | VICE PRESIDENT | MIXED | — | — |
| 2026-04-02 | Vishal Jain | VICE PRESIDENT | MIXED | — | — |
| 2026-04-02 | Scott R Hudson | Vice President | MIXED | — | — |
| 2026-04-02 | DOUGLAS K HOWELL | VP & Chief Financial Officer | MIXED | — | — |
| 2026-04-02 | THOMAS JOSEPH GALLAGHER | President | MIXED | — | — |
| 2026-04-01 | J PATRICK JR GALLAGHER | CEO | MIXED | — | — |
| 2026-04-01 | RICHARD C CARY | Controller, CAO | MIXED | — | — |
| 2026-04-01 | Walter D. Bay | General Counsel | MIXED | — | — |
| 2026-03-24 | Patrick Murphy Gallagher | Chief Operating Officer | G | — | — |
| 2026-03-24 | THOMAS JOSEPH GALLAGHER | President | G | — | — |
| 2026-03-18 | Michael Robert Pesch | Vice President | F | — | — |
| 2026-03-18 | William F Ziebell | VICE PRESIDENT | MIXED | — | — |
| 2026-03-17 | Walter D. Bay | General Counsel | MIXED | — | — |
| 2026-03-17 | Mark H. Bloom | Vice President | MIXED | — | — |
| 2026-03-17 | RICHARD C CARY | Controller, CAO | F | — | — |
| 2026-03-17 | J PATRICK JR GALLAGHER | CEO | MIXED | — | — |
| 2026-03-17 | Patrick Murphy Gallagher | Chief Operating Officer | MIXED | — | — |
| 2026-03-17 | THOMAS JOSEPH GALLAGHER | President | MIXED | — | — |
| 2026-03-17 | DOUGLAS K HOWELL | VP & Chief Financial Officer | MIXED | — | — |
| 2026-03-17 | Scott R Hudson | Vice President | MIXED | — | — |
| 2026-03-17 | Christopher E Mead | VICE PRESIDENT | MIXED | — | — |
| 2026-03-17 | Susan E Pietrucha | Chief Human Resources Officer | MIXED | — | — |
| 2026-03-17 | Vishal Jain | VICE PRESIDENT | MIXED | — | — |
| 2026-03-10 | Vishal Jain | VICE PRESIDENT | MIXED | — | — |
| 2026-03-09 | Scott R Hudson | Vice President | MIXED | — | — |
| 2026-03-09 | Michael Robert Pesch | Vice President | MIXED | — | — |
| 2026-03-09 | Christopher E Mead | VICE PRESIDENT | MIXED | — | — |
| 2026-03-06 | THOMAS JOSEPH GALLAGHER | President | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Vice President | 434,903 | — |
| — | President | 386,038 | — |
| — | CEO | 379,591 | — |
| — | Director | 203,040 | — |
| — | Vice President | 178,748 | — |
| — | Vice President | 159,948 | — |
| — | VP & Chief Financial Officer | 107,298 | — |
| — | Vice President | 107,041 | — |
| — | Vice President | 90,737 | — |
| — | Vice President | 80,917 | — |
| — | General Counsel | 71,783 | — |
| — | VICE PRESIDENT | 69,394 | — |
| — | VICE PRESIDENT | 49,175 | — |
| — | Controller, CAO | 48,238 | — |
| — | Director | 47,386 | — |
| — | Vice President | 44,891 | — |
| — | Director | 43,326 | — |
| — | VP, Gen. Counsel & Secretary | 38,246 | — |
| — | Director | 30,160 | — |
| — | VICE PRESIDENT | 22,714 | — |
| — | Director | 21,745 | — |
| — | Director | 18,414 | — |
| — | Director | 18,072 | — |
| — | Director | 16,344 | — |
| — | Chief Operating Officer | 14,660 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the AJG quote page; the site-wide leaderboard is on the insider transactions hub.