Arthur J. Gallagher & Co. (AJG) Insider Transactions
Over the last 12 months, 21 Arthur J. Gallagher & Co. (AJG) insiders filed 193 SEC Form 4 transactions — $1.0M in open-market purchases ( 1 distinct buyers) and $27.1M in open-market sales. 0% of all transactions were executed under a pre-scheduled Rule 10b5-1 trading plan.
- $1.0MOpen-market buys (1y)
- $27.1MOpen-market sells (1y)
- 21Distinct insiders
- 193Transactions filed
- 0%Under Rule 10b5-1 plan
- 2026-06-02Latest filing
Recent Form 4 Filings Most recent 50 of 193 (1-year window)
Each row is a single Form 4 filing event for AJG, sourced directly from SEC EDGAR. The Type column classifies the SEC transaction code into Buy / Sell / Grant / Exercise / Other; the 10b5-1 badge marks trades executed under a pre-scheduled SEC Rule 10b5-1 plan.
| Date | Insider | Title | Type | SEC Code | Value | Shares | Price |
|---|---|---|---|---|---|---|---|
| 2026-06-02 | CARY RICHARD C | Controller, CAO | Sell | S | $618.0K | 3,000 | $206.00 |
| 2026-06-01 | JOHNSON DAVID S | — | Grant | A | $48.8K | 237 | $206.10 |
| 2026-06-01 | Miskel Christopher C. | — | Grant | A | $40.0K | 194 | $206.10 |
| 2026-05-26 | Gallagher Patrick Murphy | Chief Operating Officer | Other | G | $0 | 14,698 | $0.00 |
| 2026-05-26 | GALLAGHER J PATRICK JR | CEO | Other | G | $0 | 14,698 | $0.00 |
| 2026-05-12 | Caplan Deborah H | — | Grant | A | $0 | 1,110 | $0.00 |
| 2026-05-12 | Clarke Teresa Hillary | — | Grant | A | $0 | 1,110 | $0.00 |
| 2026-05-12 | Coldman David John | — | Grant | A | $0 | 1,110 | $0.00 |
| 2026-05-12 | Harries Richard de Winton Wilkin | — | Grant | A | $0 | 1,110 | $0.00 |
| 2026-05-12 | JOHNSON DAVID S | — | Grant | A | $0 | 1,110 | $0.00 |
| 2026-05-12 | Miskel Christopher C. | — | Grant | A | $0 | 1,110 | $0.00 |
| 2026-05-12 | NICOLETTI RALPH J | — | Grant | A | $0 | 1,110 | $0.00 |
| 2026-05-12 | ROSENTHAL NORMAN L | — | Grant | A | $0 | 1,110 | $0.00 |
| 2026-03-31 | GALLAGHER THOMAS JOSEPH | President | Exercise | M | $16.5K | 76 | $215.95 |
| 2026-03-31 | GALLAGHER THOMAS JOSEPH | President | Exercise | M | $0 | 76 | $0.00 |
| 2026-03-31 | HOWELL DOUGLAS K | VP & Chief Financial Officer | Exercise | M | $16.5K | 76 | $215.95 |
| 2026-03-31 | HOWELL DOUGLAS K | VP & Chief Financial Officer | Exercise | M | $0 | 76 | $0.00 |
| 2026-03-31 | Hudson Scott R | Vice President | Exercise | M | $13.7K | 64 | $215.95 |
| 2026-03-31 | Hudson Scott R | Vice President | Exercise | M | $0 | 64 | $0.00 |
| 2026-03-31 | Jain Vishal | VICE PRESIDENT | Exercise | M | $11.0K | 51 | $215.95 |
| 2026-03-31 | Jain Vishal | VICE PRESIDENT | Exercise | M | $0 | 51 | $0.00 |
| 2026-03-31 | Ziebell William F | VICE PRESIDENT | Exercise | M | $11.0K | 51 | $215.95 |
| 2026-03-31 | Ziebell William F | VICE PRESIDENT | Exercise | M | $0 | 51 | $0.00 |
| 2026-03-31 | Bay Walter D. | General Counsel | Exercise | M | $305.6K | 1,415 | $215.95 |
| 2026-03-31 | Bay Walter D. | General Counsel | Exercise | M | $0 | 1,415 | $0.00 |
| 2026-03-31 | CARY RICHARD C | Controller, CAO | Exercise | M | $101.9K | 472 | $215.95 |
| 2026-03-31 | CARY RICHARD C | Controller, CAO | Exercise | M | $0 | 472 | $0.00 |
| 2026-03-31 | GALLAGHER J PATRICK JR | CEO | Exercise | M | $1.2M | 5,346 | $215.95 |
| 2026-03-31 | GALLAGHER J PATRICK JR | CEO | Exercise | M | $0 | 5,346 | $0.00 |
| 2026-03-31 | GALLAGHER THOMAS JOSEPH | President | Other | F | $16.5K | 76 | $215.95 |
| 2026-03-31 | HOWELL DOUGLAS K | VP & Chief Financial Officer | Other | F | $16.5K | 76 | $215.95 |
| 2026-03-31 | Hudson Scott R | Vice President | Other | F | $13.7K | 64 | $215.95 |
| 2026-03-31 | Jain Vishal | VICE PRESIDENT | Other | F | $11.0K | 51 | $215.95 |
| 2026-03-31 | Ziebell William F | VICE PRESIDENT | Other | F | $11.0K | 51 | $215.95 |
| 2026-03-31 | Bay Walter D. | General Counsel | Other | F | $135.4K | 627 | $215.95 |
| 2026-03-31 | CARY RICHARD C | Controller, CAO | Other | F | $30.0K | 139 | $215.95 |
| 2026-03-31 | GALLAGHER J PATRICK JR | CEO | Other | F | $511.6K | 2,369 | $215.95 |
| 2026-03-23 | GALLAGHER THOMAS JOSEPH | President | Grant | — | $0 | 264 | $0.00 |
| 2026-03-23 | GALLAGHER THOMAS JOSEPH | President | Grant | — | $0 | 264 | $0.00 |
| 2026-03-23 | GALLAGHER THOMAS JOSEPH | President | Grant | — | $0 | 528 | $0.00 |
| 2026-03-23 | GALLAGHER THOMAS JOSEPH | President | Grant | — | $0 | 264 | $0.00 |
| 2026-03-23 | GALLAGHER THOMAS JOSEPH | President | Grant | — | $0 | 264 | $0.00 |
| 2026-03-23 | GALLAGHER THOMAS JOSEPH | President | Grant | — | $0 | 176 | $0.00 |
| 2026-03-23 | Gallagher Patrick Murphy | Chief Operating Officer | Grant | — | $0 | 704 | $0.00 |
| 2026-03-23 | Gallagher Patrick Murphy | Chief Operating Officer | Grant | — | $0 | 704 | $0.00 |
| 2026-03-20 | Gallagher Patrick Murphy | Chief Operating Officer | Grant | — | $310.4K | 1,445 | $214.82 |
| 2026-03-16 | Pesch Michael Robert | Vice President | Grant | — | $109.2K | 525 | $207.93 |
| 2026-03-16 | Jain Vishal | VICE PRESIDENT | Grant | — | $104.2K | 501 | $207.93 |
| 2026-03-16 | Mead Christopher E | VICE PRESIDENT | Grant | — | $89.8K | 432 | $207.93 |
| 2026-03-16 | Gallagher Patrick Murphy | Chief Operating Officer | Grant | — | $109.2K | 525 | $207.93 |
Showing the most recent 50 of 193 transactions. For the full 1-year history with sorting, filtering, and cross-ticker industry context, open the full insider transactions drilldown.
Top Insider Buyers of AJG By dollar volume, 1-year window
- Pesch Michael Robert $1.0M
Methodology & FAQ
How We Track AJG Insider Transactions
Form 4 disclosures are sourced directly from SEC EDGAR and re-ingested on every pipeline cycle. A complete description of transaction-code handling, the open-market vs grant distinction, and the Rule 10b5-1 plan-reference heuristic is documented in the Methodology.
What is an SEC Form 4 filing for Arthur J. Gallagher & Co.?
Form 4 is a transaction-level disclosure that corporate insiders — officers, directors, and beneficial owners of more than 10% of a registered class of equity securities — must file with the SEC within two business days of any change in their beneficial ownership of Arthur J. Gallagher & Co. (AJG) shares.
What is a Rule 10b5-1 trading plan?
Rule 10b5-1 is an SEC rule that lets insiders schedule trades in advance under a written plan, providing an affirmative defense against insider-trading allegations as long as the plan was adopted in good faith and not while in possession of material non-public information. Form 4 rows marked "10b5-1" on this page indicate the underlying trade was executed under such a plan; rows without the badge are discretionary or did not reference a plan in the Form 4 footnotes.
How is "insider buying" different from a stock grant or option exercise?
An insider buy (SEC transaction code P) is an open-market purchase of Arthur J. Gallagher & Co. (AJG) stock executed at the prevailing market price using the insider's personal capital. Stock grants (code A) and option exercises (code M) are compensation events, not directional trades; they are tracked separately and excluded from the "conviction" signal because they are not discretionary purchases.
How recent is the data?
Form 4 transactions are typically reported within two business days of execution. Pactolio re-ingests the EDGAR feed on a nightly cycle and reflects new filings on the next ingest run, typically within 24 hours of EDGAR acceptance. The table on this page covers the most recent 1-year window.