AJG · Insider Trading
Arthur J. Gallagher & Co.
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-17 | Richard C Cary | Controller, CAO | Sell | −1,000 | −$252.86K |
| 2026-09-10 | Patrick Murphy Gallagher | Chief Operating Officer | G | +49,988 | — |
| 2026-09-10 | J Patrick Gallagher Jr | CEO | G | −49,988 | — |
| 2026-09-04 | Scott R Hudson | Vice President | MIXED | — | −$2.14M |
| 2026-09-02 | Christopher C. Miskel | Director | A | +152 | +$40.00K |
| 2026-08-26 | Walter D. Bay | General Counsel | Sell | −12,000 | −$3.24M |
| 2026-08-20 | Christopher E Mead | VICE PRESIDENT | MIXED | — | −$597.99K |
| 2026-08-18 | Mark H. Bloom | Vice President | MIXED | +673 | −$152.44K |
| 2026-08-07 | Patrick Murphy Gallagher | Chief Operating Officer | G | −23,800 | — |
| 2026-08-07 | Patrick Murphy Gallagher | Chief Operating Officer | G | −23,800 | — |
| 2026-07-06 | Vishal Jain | VICE PRESIDENT | M | +2,162 | +$496.49K |
| 2026-07-06 | Thomas Joseph Gallagher | President | M | +351 | +$80.80K |
| 2026-07-06 | Michael Robert Pesch | Vice President | M | +355 | +$81.68K |
| 2026-06-24 | Douglas K Howell | VP & Chief Financial Officer | I | — | — |
| 2026-06-02 | Christopher C. Miskel | Director | A | +194 | +$40.00K |
| 2026-06-02 | David S Johnson | Director | A | +236 | +$48.75K |
| 2026-06-02 | Richard C Cary | Controller, CAO | Sell | −3,000 | −$618.00K |
| 2026-05-28 | J Patrick Gallagher Jr | CEO | G | −14,698 | — |
| 2026-05-28 | Patrick Murphy Gallagher | Chief Operating Officer | G | +14,698 | — |
| 2026-05-13 | Norman L Rosenthal | Director | A | +1,110 | — |
| 2026-05-13 | Ralph J Nicoletti | Director | A | +1,110 | — |
| 2026-05-13 | Christopher C. Miskel | Director | A | +1,110 | — |
| 2026-05-13 | David S Johnson | Director | A | +1,110 | — |
| 2026-05-13 | Richard de Winton Wilkin Harries | Director | A | +1,110 | — |
| 2026-05-13 | David John Coldman | Director | A | +1,110 | — |
| 2026-05-13 | Teresa Hillary Clarke | Director | A | +1,110 | — |
| 2026-05-13 | Deborah H Caplan | Director | A | +1,110 | — |
| 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 Gallagher Jr | CEO | MIXED | +2,976 | +$642.86K |
| 2026-04-01 | Richard C Cary | Controller, CAO | MIXED | +332 | +$71.85K |
| 2026-04-01 | Walter D. Bay | General Counsel | MIXED | +788 | +$170.19K |
| 2026-03-24 | Patrick Murphy Gallagher | Chief Operating Officer | G | — | — |
| 2026-03-24 | Thomas Joseph Gallagher | President | G | −704 | — |
| 2026-03-18 | Michael Robert Pesch | Vice President | F | −525 | −$109.16K |
| 2026-03-18 | William F Ziebell | VICE PRESIDENT | MIXED | +4,609 | −$482.61K |
| 2026-03-17 | Walter D. Bay | General Counsel | MIXED | +4,679 | −$501.32K |
| 2026-03-17 | Mark H. Bloom | Vice President | MIXED | +2,713 | −$164.89K |
| 2026-03-17 | Richard C Cary | Controller, CAO | F | −181 | −$37.64K |
| 2026-03-17 | J Patrick Gallagher Jr | CEO | MIXED | +25,880 | −$3.99M |
| 2026-03-17 | Patrick Murphy Gallagher | Chief Operating Officer | MIXED | +2,133 | −$517.12K |
| 2026-03-17 | Thomas Joseph Gallagher | President | MIXED | +5,492 | −$845.86K |
| 2026-03-17 | Douglas K Howell | VP & Chief Financial Officer | MIXED | +10,679 | −$1.48M |
| 2026-03-17 | Scott R Hudson | Vice President | MIXED | +4,342 | −$588.03K |
| 2026-03-17 | Christopher E Mead | VICE PRESIDENT | MIXED | +2,807 | −$509.64K |
| 2026-03-17 | Susan E Pietrucha | Chief Human Resources Officer | MIXED | +4,426 | −$454.53K |
| 2026-03-17 | Vishal Jain | VICE PRESIDENT | MIXED | +9,282 | −$654.15K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Thomas Joseph Gallagher | President | 386,038 | $89.91M |
| J Patrick Gallagher Jr | CEO | 128,447 | $29.92M |
| Douglas K Howell | VP & Chief Financial Officer | 107,298 | $24.99M |
| Scott R Hudson | Vice President | 102,673 | $23.91M |
| Walter D. Bay | General Counsel | 71,783 | $16.72M |
| Vishal Jain | VICE PRESIDENT | 69,394 | $16.16M |
| Patrick Murphy Gallagher | Chief Operating Officer | 69,278 | $16.13M |
| William F Ziebell | VICE PRESIDENT | 49,175 | $11.45M |
| David S Johnson | Director | 47,386 | $11.04M |
| Richard C Cary | Controller, CAO | 47,238 | $11.00M |
| Michael Robert Pesch | Vice President | 44,891 | $10.46M |
| Norman L Rosenthal | Director | 43,326 | $10.09M |
| Christopher E Mead | VICE PRESIDENT | 22,714 | $5.29M |
| Ralph J Nicoletti | Director | 18,414 | $4.29M |
| Sherry S Barrat | Director | 18,072 | $4.21M |
| David John Coldman | Director | 16,344 | $3.81M |
| Christopher C. Miskel | Director | 10,826 | $2.52M |
| Susan E Pietrucha | Chief Human Resources Officer | 6,979 | $1.63M |
| Teresa Hillary Clarke | Director | 5,566 | $1.30M |
| Mark H. Bloom | Vice President | 5,216 | $1.21M |
| Deborah H Caplan | Director | 2,650 | $617.18K |
| Richard de Winton Wilkin Harries | Director | 2,413 | $561.99K |
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.
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.