DONALDSON Co INC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities

Exchange Act of 1934 (Amendment No. )

Filed by the Registrant [X]

Filed by a party other than the Registrant [ ]

Check the appropriate box:

[ ] Preliminary Proxy Statement

[ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

[X] Definitive Proxy Statement

[ ] Definitive Additional Materials

[ ] Soliciting Material under § 240.14a-12

Donaldson Company, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

[X] No fee required

[ ] Fee paid previously with preliminary materials

[ ] Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

DONALDSON COMPANY, INC.

1400 West 94th Street

Minneapolis, Minnesota 55431-2370

www.donaldson.com

NOTICE OF 2026 ANNUAL MEETING OF STOCKHOLDERS

DATE AND TIME: Friday, November 20, 2026 at 1:00 p.m. (CST)

RECORD DATE: Close of business on September 21, 2026.

ITEMS OF BUSINESS:

(1) Election of Directors;

(2) Non-binding advisory vote to approve the compensation of our Named Executive Officers;

(3) Ratification of the appointment of PricewaterhouseCoopers LLP as our independent registered public accounting firm for the fiscal year ending July 31, 2027; and

(4) Any other business that properly comes before the meeting.

PROXY VOTING:

It is important that your shares are represented and voted at the Annual Meeting. You received instructions on voting your shares on the Notice of Internet Availability of Proxy Materials for the Annual Meeting. If you received paper copies of the proxy materials, instructions on the different ways to vote your shares are found on the enclosed proxy card. Vote by proxy even if you plan to log in and attend the Annual Meeting.

HOW TO ATTEND THE MEETING:

Attend our virtual meeting online and vote your shares electronically by visiting www.virtualshareholdermeeting.com/DCI2026. This year's meeting will again be completely virtual which makes participation and engagement convenient for all our stockholders. You will need the 16-digit control number that is printed in the box marked by the arrow on your Notice of Internet Availability of Proxy Materials or proxy card to enter the Annual Meeting.

PLEASE PROMPTLY VOTE YOUR PROXY TO SAVE US THE EXPENSE OF ADDITIONAL SOLICITATION.

Notice of Internet Availability of Proxy Materials for the stockholder meeting to be held on November 20, 2026: Our 2026 Proxy Statement and our Fiscal 2026 Annual Report to Stockholders are available at www.proxyvote.com.

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