SEC Form 4 · Updated Daily
AJG
— ARTHUR J. GALLAGHER & CO. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| GALLAGHER THOMAS JOSEPH | Officer | 323,743.025 | 2026-07-01 | M |
| Gallagher Patrick Murphy | Officer | 148,093.25 | 2026-09-08 | G |
| HOWELL DOUGLAS K | Officer | 106,709.756 | 2026-03-31 | F |
| Hudson Scott R | Officer | 90,262 | 2026-09-02 | S |
| Bay Walter D. | Officer | 71,292.092 | 2026-08-24 | S |
| Jain Vishal | Officer | 68,903.384 | 2026-07-01 | M |
| Ziebell William F | Officer | 48,684.824 | 2026-03-31 | F |
| CARY RICHARD C | Officer | 47,819.487 | 2026-06-02 | S |
| JOHNSON DAVID S | Director | 47,386.554 | 2026-06-01 | A |
| Pesch Michael Robert | Officer | 44,832.729 | 2026-07-01 | M |
| ROSENTHAL NORMAN L | Director | 43,326.66 | 2026-05-12 | A |
| Mead Christopher E | Officer | 22,223.408 | 2026-08-19 | S |
| NICOLETTI RALPH J | Director | 18,414.305 | 2026-05-12 | A |
| Pietrucha Susan E | Officer | 16,396.772 | 2026-03-15 | F |
| Coldman David John | Director | 16,344 | 2026-05-12 | A |
| Miskel Christopher C. | Director | 10,826.439 | 2026-09-01 | A |
| Clarke Teresa Hillary | Director | 5,566.726 | 2026-05-12 | A |
| Bloom Mark H. | Officer | 4,416.671 | 2026-08-16 | F |
| Caplan Deborah H | Director | 2,650 | 2026-05-12 | A |
| Harries Richard de Winton Wilkin | Director | 2,413 | 2026-05-12 | A |
| GALLAGHER J PATRICK JR | Director · Officer | 0 | 2026-09-08 | G |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-08 | GALLAGHER J PATRICK JR | Gift | 49,988 | $0.00 | 0 |
| 2026-09-08 | Gallagher Patrick Murphy | Gift | 49,988 | $0.00 | 148,093.25 |
| 2026-09-02 | Hudson Scott R | Option exercise (derivative) | 12,000 | $0.00 | 12,370 |
| 2026-09-02 | Hudson Scott R | Open-market sale | 12,000 | $264.13 | 90,262 |
| 2026-09-02 | Hudson Scott R | Option exercise | 12,000 | $86.17 | 102,262 |
| 2026-09-01 | Miskel Christopher C. | Grant / award | 152.672 | $262.00 | 10,826.439 |
| 2026-08-24 | Bay Walter D. | Open-market sale | 12,000 | $270.08 | 71,292.092 |
| 2026-08-19 | Mead Christopher E | Option exercise (derivative) | 3,500 | $0.00 | 7,590 |
| 2026-08-19 | Mead Christopher E | Open-market sale | 3,500 | $257.02 | 22,223.408 |
| 2026-08-19 | Mead Christopher E | Option exercise | 3,500 | $86.17 | 25,723.408 |
| 2026-08-16 | Bloom Mark H. | Option exercise (derivative) | 1,280.485 | $0.00 | 6,017.051 |
| 2026-08-16 | Bloom Mark H. | Tax withholding | 606.814 | $251.21 | 4,416.671 |
| 2026-08-16 | Bloom Mark H. | Option exercise | 1,280.485 | $0.00 | 5,023.485 |
| 2026-08-05 | Gallagher Patrick Murphy | Gift | 23,800 | $0.00 | 53,262 |
| 2026-07-01 | Pesch Michael Robert | Option exercise (derivative) | 355.801 | $0.00 | 6,134.526 |
| 2026-07-01 | Pesch Michael Robert | Option exercise | 355.801 | $229.57 | 44,832.729 |
| 2026-07-01 | GALLAGHER THOMAS JOSEPH | Option exercise (derivative) | 351.945 | $0.00 | 13,345.635 |
| 2026-07-01 | GALLAGHER THOMAS JOSEPH | Option exercise | 351.945 | $229.57 | 323,743.025 |
| 2026-07-01 | Jain Vishal | Option exercise (derivative) | 2,162.694 | $0.00 | 9,725.846 |
| 2026-07-01 | Jain Vishal | Option exercise | 2,162.694 | $229.57 | 68,903.384 |
| 2026-06-22 | HOWELL DOUGLAS K | I (derivative) | 12,954.386 | $209.08 | 185,953.926 |
| 2026-06-02 | CARY RICHARD C | Open-market sale | 3,000 | $206.00 | 47,819.487 |
| 2026-06-01 | Miskel Christopher C. | Grant / award | 194.081 | $206.10 | 10,641.773 |
| 2026-06-01 | JOHNSON DAVID S | Grant / award | 236.536 | $206.10 | 47,386.554 |
| 2026-05-26 | GALLAGHER J PATRICK JR | Gift | 14,698 | $0.00 | 109,416.964 |
| 2026-05-26 | Gallagher Patrick Murphy | Gift | 14,698 | $0.00 | 98,105.25 |
| 2026-05-12 | ROSENTHAL NORMAN L | Grant / award | 1,110 | $0.00 | 43,326.66 |
| 2026-05-12 | NICOLETTI RALPH J | Grant / award | 1,110 | $0.00 | 18,414.305 |
| 2026-05-12 | Miskel Christopher C. | Grant / award | 1,110 | $0.00 | 10,447.692 |
| 2026-05-12 | JOHNSON DAVID S | Grant / award | 1,110 | $0.00 | 47,150.018 |
| 2026-05-12 | Harries Richard de Winton Wilkin | Grant / award | 1,110 | $0.00 | 2,413 |
| 2026-05-12 | Coldman David John | Grant / award | 1,110 | $0.00 | 16,344 |
| 2026-05-12 | Clarke Teresa Hillary | Grant / award | 1,110 | $0.00 | 5,566.726 |
| 2026-05-12 | Caplan Deborah H | Grant / award | 1,110 | $0.00 | 2,650 |
| 2026-03-31 | GALLAGHER J PATRICK JR | Option exercise (derivative) | 5,345.903 | $0.00 | 139,097.882 |
| 2026-03-31 | GALLAGHER J PATRICK JR | Tax withholding | 2,369 | $215.95 | 123,961.837 |
| 2026-03-31 | GALLAGHER J PATRICK JR | Option exercise | 5,345.903 | $215.95 | 126,330.837 |
| 2026-03-31 | CARY RICHARD C | Option exercise (derivative) | 471.698 | $0.00 | 160.685 |
| 2026-03-31 | CARY RICHARD C | Tax withholding | 139 | $215.95 | 50,819.487 |
| 2026-03-31 | CARY RICHARD C | Option exercise | 471.698 | $215.95 | 50,958.487 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.