# EDGAR Filing Document

**Accession Number:** 0000354190
**File Stem:** 0001127602-23-004147
**Filing Date:** 2023-2
**Character Count:** 6727
**Document Hash:** 40ac23e0cfe87104021882f5bbbf981f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001127602-23-004147.hdr.sgml**: 20230209

**ACCESSION NUMBER**: 0001127602-23-004147

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230206

**FILED AS OF DATE**: 20230209

**DATE AS OF CHANGE**: 20230209

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** GALLAGHER J PATRICK JR
- **CENTRAL INDEX KEY:** 0001186006

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-09761
- **FILM NUMBER:** 23605387

**MAIL ADDRESS:**
- **STREET 1:** C/O ARTHUR J. GALLAGHER & CO.
- **STREET 2:** TWO PIERCE PLACE
- **CITY:** ITASCA
- **STATE:** IL
- **ZIP:** 60143
**ISSUER**: 

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

**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

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>GALLAGHER J PATRICK JR<br><sub>(Last) (First) (Middle)</sub><br>2850 GOLF ROAD<br><sub>(Street)</sub><br>ROLLING MEADOWS, IL 60008-4002<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-06 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_President & CEO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Arthur J. Gallagher & Co. [ AJG ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2023-02-06 |  | M |  | 62900 | A | $43.71 | 82809.4435 | D |  |
| Common Stock | 2023-02-06 |  | F |  | 35085 | D | $193.63 | 19909.4435 | D |  |
| Common Stock |  |  |  |  |  |  |  | 23448 | I | By Spouse's Trust<sup>(1)</sup> |
| Common Stock |  |  |  |  |  |  |  | 255965 | I | By Corporation |
| Common Stock |  |  |  |  |  |  |  | 94888 | I | By Irrevocable Trust |
| Common Stock |  |  |  |  |  |  |  | 241756 | I | By Spouse<sup>(2)</sup> |
| Common Stock |  |  |  |  |  |  |  | 218485 | I | By Trust<sup>(3)</sup> |
| Common Stock |  |  |  |  |  |  |  | 214.625 | I | Gallagher 401(k) plan account |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Non-qualified Stock Option | $43.71 | 2023-02-06 |  | M |  |  | 62900 | <sup>(4)</sup> | 2023-03-17 | Common Stock | 62900 | $0 | 0 | D |  |

---

### Footnotes:

(1) Shares held in trust for the benefit of my children of which I am sole Trustee.

(2) Shares held in revocable trust of which my spouse is sole Trustee and as to which I disclaim beneficial ownership.

(3) Held in trust for benefit of children.

(4) One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.

**Signature:** /s/ Seth Diehl, by power of attorney  
**Date:** 2023-02-09

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**