# EDGAR Filing Document

**Accession Number:** 0000354190
**File Stem:** 0000354190-25-000054
**Filing Date:** 2025-12
**Character Count:** 4816
**Document Hash:** 64b1d0f3c17af0b62a05c35160f66078
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000354190-25-000054.hdr.sgml**: 20251216

**ACCESSION NUMBER**: 0000354190-25-000054

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20251216

**ITEM INFORMATION**: Regulation FD Disclosure

**FILED AS OF DATE**: 20251216

**DATE AS OF CHANGE**: 20251216

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Arthur J. Gallagher & Co.
- **CENTRAL INDEX KEY:** 0000354190
- **STANDARD INDUSTRIAL CLASSIFICATION:** INSURANCE AGENTS BROKERS & SERVICES [6411]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 362151613
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-09761
- **FILM NUMBER:** 251573394

**BUSINESS ADDRESS:**
- **STREET 1:** 2850 GOLF ROAD
- **CITY:** ROLLING MEADOWS
- **STATE:** IL
- **ZIP:** 60008-4050
- **BUSINESS PHONE:** 630-773-3800

**MAIL ADDRESS:**
- **STREET 1:** 2850 GOLF ROAD
- **CITY:** ROLLING MEADOWS
- **STATE:** IL
- **ZIP:** 60008-4050

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ARTHUR J. GALLAGHER & CO.
- **DATE OF NAME CHANGE:** 20190819

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GALLAGHER ARTHUR J & CO
- **DATE OF NAME CHANGE:** 19920703

?xml version='1.0' encoding='ASCII'? ajg-20251216

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

__________________________

**Form 8-K**

__________________________

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d)**

**of the Securities Exchange Act of 1934**

**December 16, 2025**

**Date of Report: (Date of earliest event reported)**

__________________________

**ARTHUR J. GALLAGHER & CO.**

**(Exact name of registrant as specified in its charter)**

__________________________

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| | | |
|:---|:---|:---|
| **Delaware** | **1-09761** | **36-2151613** |
| **(State or other jurisdiction of<br>incorporation or organization)** | **(Commission<br>File Number)** | **(I.R.S. Employer<br>Identification Number)** |

---

**2850 Golf Road, Rolling Meadows, Illinois 60008, (630) 773-3800**

**(Address, including zip code and telephone number, including area code, of registrant's principal executive offices)**

**Not Applicable**

**(Former name or former address, if changed since last report)**

__________________________

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

□ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

□ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

□ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

□ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading<br>Symbol(s)** | **Name of each exchange<br>on which registered** |
| **Common Stock, $1.00 par value** | **AJG** | **New York Stock Exchange** |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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**Item 7.01. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Regulation FD Disclosure**

On December 3, 2025, Arthur J. Gallagher & Co. (the "<u>Company</u>") announced plans to host an investor meeting on Tuesday, December 16, 2025. As previously announced, a webcast of the meeting and related presentation materials, including an updated "CFO Commentary," are available through the investor relations page of the Company's website. The CFO Commentary includes certain estimates relating to 2025 and 2026 results, net after-tax cash flows from clean energy investments in 2025 and future years, and cautionary language regarding forward-looking statements.

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**SIGNATURES** 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | |
|:---|:---|:---|
| | | **Arthur J. Gallagher & Co.** |
| Date: December 16, 2025 | By: | /s/ Walter D. Bay |
|  |  | Walter D. Bay<br>Vice President, General Counsel and Secretary |

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