Donaldson : 2021 Proxy Statement

DONALDSON COMPANY, INC.

1400 West 94th Street

Minneapolis, Minnesota 55431-2370

www.donaldson.com

NOTICE OF 2021 ANNUAL MEETING OF STOCKHOLDERS

DATE AND TIME: Friday, November 19, 2021 at 1:00 p.m. (CST)

RECORD DATE: Close of business on September 20, 2021.

ITEMS OF BUSINESS:

1. Election of Directors;
2. Non-bindingadvisory 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, 2022; 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/DCI2021. 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 19, 2021: Our 2021 Proxy Statement and our Fiscal 2021 Annual Report to Stockholders are available at www.proxyvote.com.

By Order of the Board of Directors

Amy C. Becker

Secretary

Dated: October 6, 2021

TABLE OF CONTENTS
PROPOSALS YOU ARE ASKED TO VOTE ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	1
QUESTIONS AND ANSWERS ABOUT THE ANNUAL MEETING AND VOTING. . . . . . . . . . . . . . . . . . . . . . . .	2
Why did I receive this Proxy Statement?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2
Why did I receive a notice in the mail regarding the internet availability of proxy materials instead of a full
set of proxy materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2
What does it mean if I receive more than one proxy card?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2
Who pays for the cost of proxy preparation and solicitation?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2
What am I voting on, what does the Board recommend and what vote is required to approve each item?. .	3
How do I vote my shares?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4
How do I vote if I hold stock through a Donaldson employee benefit plan?. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4
How do I vote my shares held in "street name" in a brokerage or bank account?. . . . . . . . . . . . . . . . . . . . . . .	4
What if I submit a proxy and then change my mind?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4
Who may attend the meeting?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
How many shares must be present to conduct the meeting?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
How will voting on any other business be conducted?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
Where do I find the voting results of the meeting?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
How do I submit a stockholder proposal for next year's Annual Meeting?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
SECURITY OWNERSHIP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
DELINQUENT SECTION 16(a) REPORTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
ITEM 1: ELECTION OF DIRECTORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Board Recommendation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Information Regarding Directors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	9
CORPORATE GOVERNANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	15
Corporate Governance Highlights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	15
Board Oversight and Director Independence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	15
Policy and Procedures Regarding Transactions with Related Persons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	16
Board Leadership Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	17
Risk Oversight by Board of Directors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	17
Meetings and Committees of the Board of Directors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	19
Audit Committee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	19
Human Resources Committee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	20
Corporate Governance Committee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21
Corporate Governance Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21
Code of Business Conduct and Ethics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21
Board Composition and Qualifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21
Director Selection Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21
Executive Sessions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	22
Board Evaluations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	23
Communications with Directors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	23
Audit Committee Expertise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	23
Complaint-HandlingProcedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	24

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DIRECTOR COMPENSATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	24
Director Compensation Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	24
Director Compensation Program Elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	24
Fiscal 2021 Director Compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	26
EXECUTIVE COMPENSATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	28
Compensation Committee Report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	28
Compensation Discussion and Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	29
Compensation Risk Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	40
Summary Compensation Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	41
Fiscal 2021 Grants of Plan-BasedAwards Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	43
Outstanding Equity Awards at 2021 Fiscal Year-End. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	44
Fiscal 2021 Option Exercises and Stock Vested Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	46
Pension Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	46
Non-QualifiedDeferred Compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	48
Potential Payments Upon Termination or Change in Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	46
Pay Ratio Disclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	54
INFORMATION REGARDING THE INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM. . . . . . .	55
Audit Committee Report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	55
Independent Registered Public Accounting Firm Fees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	55
Audit Committee Pre-ApprovalPolicies and Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	56
ITEM 2: NON-BINDING ADVISORY VOTE ON THE COMPENSATION OF OUR NAMED EXECUTIVE
OFFICERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	57
Board Recommendation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	57
EQUITY COMPENSATION PLAN INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	58
ITEM 3: RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING
FIRM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	59
Board Recommendation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	59

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DONALDSON COMPANY, INC.

1400 West 94th Street

Minneapolis, Minnesota 55431-2370

PROXY STATEMENT

Mailing Date: October 6, 2021

PROPOSALS YOU ARE ASKED TO VOTE ON

Item 1: Election of Directors

Two current directors, James J. Owens, and Trudy A. Rautio, and one director nominee, Christopher M. Hilger, are recommended for election to the Board of Directors at the Annual Meeting. Information on the director nominees is provided on pages 9-14. Directors are elected for a three-year term so that approximately one-third are elected at each Annual Meeting of Stockholders.

The Board of Directors unanimously recommends a vote FOR the election of each director nominee.

Item 2: Non-Binding Advisory Vote to Approve the Compensation of our Named Executive Officers

As required pursuant to Section 14A of the Securities Exchange Act of 1934, the Company is providing our stockholders with an advisory (non-binding) vote on the compensation of our Named Executive Officers as disclosed in this Proxy Statement.

The Board of Directors unanimously recommends a vote FOR the compensation of our Named Executive Officers described in this Proxy Statement.

Item 3: Ratification of the Appointment of Independent Registered Public Accounting Firm

The Audit Committee has appointed PricewaterhouseCoopers LLP as the Company's independent registered public accounting firm to audit the Company's financial statements for the fiscal year ending July 31, 2022, and is requesting ratification by our stockholders.

The Board of Directors unanimously recommends a vote FOR the ratification of the appointment of PricewaterhouseCoopers LLP as the Company's independent registered public accounting firm for the fiscal year ending July 31, 2022.

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QUESTIONS AND ANSWERS ABOUT THE ANNUAL MEETING AND VOTING

Why did I receive this Proxy Statement?

You received this Proxy Statement because the Board of Directors ("Board") of the Company is soliciting proxies for use at the Annual Meeting to be held on November 19, 2021, and you were a Donaldson stockholder as of the close of business on the record date of September 20, 2021. Only stockholders of record are entitled to vote at the Annual Meeting and the Board is soliciting your proxy to vote. We had 123,595,114 shares of common stock outstanding as of the close of business on the record date. Each share entitles its holder to one vote, and there is no cumulative voting.

This Proxy Statement summarizes the information you need to know to vote. We first mailed or otherwise made available to stockholders the Proxy Statement and form of proxy on or about October 6, 2021.

Why did I receive a notice in the mail regarding the internet availability of proxy materials instead of a full set of proxy materials?

In accordance with rules adopted by the Securities and Exchange Commission (the "SEC"), we may furnish proxy materials, including this Proxy Statement and our Fiscal 2021 Annual Report to Stockholders, to our stockholders by providing access to such documents on the internet instead of mailing printed copies. Most stockholders will not receive printed copies of the proxy materials unless they request them. Instead, the Notice of Internet Availability of Proxy Materials, which was mailed to most of our stockholders, will instruct you as to how you may access and review all of the proxy materials on the internet. Such notice also instructs you as to how you may submit your proxy on the internet. If you would like to receive a paper copy of our proxy materials, please follow the instructions for requesting such materials provided in the Notice of Internet Availability of Proxy Materials.

SEC rules allow us to deliver a single copy of an annual report, proxy statement, or Notice of Internet Availability of Proxy Materials to two or more stockholders that share the same household address. If you received multiple copies and would like to receive only one copy per household in the future, or if you received only one copy and would like to receive multiple copies in the future, you should contact your bank, broker or other nominee record holder, or if you are a record holder, contact Amy Becker, Secretary, at Donaldson Company, Inc., MS 101, P.O. Box 1299, Minneapolis, MN 55440-1299, by telephone at 952-703-4965, or by email to [e-mail] documents may also be downloaded and printed from our Investor Relations website at ir.donaldson.com.

What does it mean if I receive more than one proxy card?

It means that you hold shares in multiple accounts with banks or stockbrokers, or with the transfer agent.

PLEASE VOTE ALL OF YOUR SHARES.

Who pays for the cost of proxy preparation and solicitation?

The Company pays for the cost of proxy preparation and solicitation, including the reasonable charges and expenses of brokerage firms, banks or other nominees for forwarding proxy materials to street name holders. We are soliciting proxies primarily by mail, email, and the internet. In addition, our directors, Officers, and other employees may solicit proxies by email, telephone, facsimile, or personally. These individuals will receive no additional compensation for their services other than their regular salaries.

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