STOCK TITAN

Arthur J. Gallagher: Ziebell sells 23,510 shares

The exercise and sale each involved 23,510 shares, with sale prices ranging from $286.50 to $287.11.

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Form Type
4

Rhea-AI Filing Summary

Arthur J. Gallagher & Co. (AJG) vice president William F. Ziebell exercised options for 23,510 common shares at an $86.17 exercise price on November 4, 2026, then sold 23,510 shares at a weighted average $286.625 per share. Sale prices ranged from $286.50 to $287.11 across multiple transactions. No Rule 10b5-1 plan is reported.

Insider Ziebell William F
Role VICE PRESIDENT
Sold 23,510 shs ($6.74M)
Approx. gross sale proceeds $6.74M
Approx. exercise cost $2.03M
Approx. pre-tax spread $4.71M
Share of Position Sold 32.4%
Type Security Shares Price Value
Exercise Non-qualified Stock Option F2 23,510 $0.00 $0.00
Exercise Common Stock 23,510 $86.17 $2.03M
Sale Common Stock F1 23,510 $286.625 $6.74M
Holding Phantom Stock F3, F4 -- -- --
Holding Non-qualified Stock Option F2 -- -- --
Holding Non-qualified Stock Option F2 -- -- --
Holding Non-qualified Stock Option F5, F2 -- -- --
Holding Non-qualified Stock Option F6 -- -- --
Holding Non-qualified Stock Option F7 -- -- --
Holding Notional Stock Units F8, F9 -- -- --
Holding Common Stock -- -- --
Holdings After Transaction: Non-qualified Stock Option — 62,179 contracts (Direct); Common Stock — 48,941.8559 shares (Direct); Phantom Stock — 68,663.227 contracts (Direct); Notional Stock Units — 6,033.7549 contracts (Direct); Common Stock — 491.139 shares (Indirect, Gallagher 401(k) plan account)
Holdings Before and After: Non-qualified Stock Option, 85,689 to 62,179 contracts (Direct); Common Stock, 48,941.8559 to 48,941.8559 shares (Direct)
Other Insiders: 2 other insiders reported open-market sales of this stock in the 30 days up to this filing.
Footnotes (9)
  1. F1. The price reported is an average weighted price. The shares were sold in multiple transactions at prices ranging from $286.50 to $287.11. The reporting person will provide to the Securities and Exchange Commission staff, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
  2. F2. One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
  3. F3. Each share of phantom stock represents a right to receive one share of Gallagher common stock.
  4. F4. These shares represent awards under the Age 62 Plan, a nonqualified deferred compensation plan of the Company, which have been deemed invested in Company common stock at the election of the reporting person. Participants vest in these awards when they attain age 62, or after a one-year period for participants who have attained age 61.
  5. F5. Closing price of Gallagher common stock on February 28, 2025.
  6. F6. One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
  7. F7. One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
  8. F8. Each notional stock unit represents a right to receive one share of Gallagher common stock.
  9. F9. The notional stock units become payable in July 2026 and following the reporting person's separation from service with Gallagher.
Shares exercised 23,510 shares November 4, 2026
Exercise price $86.17 per share Options exercised November 4, 2026
Shares sold 23,510 shares November 4, 2026
Weighted average sale price $286.625 per share Sale on November 4, 2026
Sale price range $286.50 to $287.11 per share Multiple sale transactions
Non-qualified Stock Option financial
"Non-qualified Stock Option"
A non-qualified stock option (NSO) is a contract that lets an employee or service provider buy company shares at a fixed price for a set period, like a voucher to purchase stock later at today’s price. It matters to investors because exercising NSOs creates ordinary income for the holder and can increase share count, affecting a company’s earnings and ownership mix; think of it as a future sale that can dilute existing shareholders and has immediate tax consequences for the recipient.
Phantom Stock financial
"Each share of phantom stock represents a right to receive one share of Gallagher common stock."
A phantom stock is a form of compensation that gives employees or executives the benefits of stock ownership, such as the increase in stock value, without actually giving them real shares. It acts like a promise to pay the employee the equivalent value of company stock later, often as a bonus or incentive. This allows companies to motivate and reward staff without diluting ownership or transferring actual shares.
Age 62 Plan financial
"awards under the Age 62 Plan, a nonqualified deferred compensation plan of the Company"
Notional Stock Units financial
"Each notional stock unit represents a right to receive one share of Gallagher common stock."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many AJG shares did William F. Ziebell sell, and at what price?

William F. Ziebell, a vice president, sold 23,510 shares on November 4, 2026, at a weighted average $286.625 per share; individual sale prices ranged from $286.50 to $287.11. He exercised options for 23,510 shares at an $86.17 exercise price, and no Rule 10b5-1 plan is reported.

What other stock options did AJG vice president William F. Ziebell report?

The reported remaining non-qualified stock options included 22,210 underlying shares at a $127.90 exercise price, expiring March 16, 2028; 11,100 at $158.56, expiring March 15, 2029; 9,712 at $243.54, expiring March 1, 2031; 9,917 at $337.74, expiring March 1, 2032; and 9,240 at $177.09, expiring March 15, 2030.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
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*
Ziebell William F

(Last)(First)(Middle)
2850 GOLF ROAD

(Street)
ROLLING MEADOWS ILLINOIS 60008-4002

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Arthur J. Gallagher & Co. [ AJG ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
VICE PRESIDENT
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
11/04/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock11/04/2026M23,510A$86.1772,451.8559D
Common Stock11/04/2026S23,510D$286.625(1)48,941.8559D
Common Stock491.139IGallagher 401(k) plan account
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Non-qualified Stock Option$86.1711/04/2026M23,510 (2)03/12/2027Common Stock23,510$00D
Phantom Stock(3) (4) (4)Common Stock68,663.22768,663.227D
Non-qualified Stock Option$127.9 (2)03/16/2028Common Stock22,21022,210D
Non-qualified Stock Option$158.56 (2)03/15/2029Common Stock11,10011,100D
Non-qualified Stock Option$337.74(5) (2)03/01/2032Common Stock9,9179,917D
Non-qualified Stock Option$243.54 (6)03/01/2031Common Stock9,7129,712D
Non-qualified Stock Option$177.09 (7)03/15/2030Common Stock9,2409,240D
Notional Stock Units(8) (9) (9)Common Stock6,033.75496,033.7549D
Explanation of Responses:
1. The price reported is an average weighted price. The shares were sold in multiple transactions at prices ranging from $286.50 to $287.11. The reporting person will provide to the Securities and Exchange Commission staff, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
2. One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
3. Each share of phantom stock represents a right to receive one share of Gallagher common stock.
4. These shares represent awards under the Age 62 Plan, a nonqualified deferred compensation plan of the Company, which have been deemed invested in Company common stock at the election of the reporting person. Participants vest in these awards when they attain age 62, or after a one-year period for participants who have attained age 61.
5. Closing price of Gallagher common stock on February 28, 2025.
6. One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
7. One-third of this stock option becomes exercisable on each of the 3rd, 4th, and 5th anniversaries of the grant date.
8. Each notional stock unit represents a right to receive one share of Gallagher common stock.
9. The notional stock units become payable in July 2026 and following the reporting person's separation from service with Gallagher.
/s/ Monica Norzagaray, by power of attorney11/05/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

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