UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

_____________________________________________________________

FORM 10-Q/A

Amendment No. 1

_____________________________________________________________

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED APRIL 30, 2019 OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM _________________ TO _________________.

Commission File Number 1-7891

DONALDSON COMPANY, INC.

(Exact name of registrant as specified in its charter)

Delaware	41-0222640
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)

1400 West 94th Street

Minneapolis, Minnesota 55431

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (952) 887-3131

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $5.00 par value	DCI	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. xYes o No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). xYes oNo

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer x	Accelerated filer o
Non-accelerated filer o	Smaller reporting company o
Emerging growth company o

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.o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

o Yes xNo

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date: common stock, $5 par value - 127,527,035 shares as of May 31, 2019.

EXPLANATORY NOTE

This Amendment No. 1 to Quarterly Report on Form 10-Q for the fiscal quarter ended April 30, 2019 is filed solely to correct the date of the quarter end included in Exhibit 32, which was incorrectly stated in the original filing. This amendment comprises the revised text of Part II, Item 6, amended to reflect the filing of currently dated certificates as Exhibit 31 and Exhibit 32.

PART II. OTHER INFORMATION

Item 6.	Exhibits
	31-A – Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
	31-B – Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
	32 – Certifications of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

SIGNATURES

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

DONALDSON COMPANY, INC.

(Registrant)

Date: December 6, 2019	By:	/s/ Tod E. Carpenter
		Tod E. Carpenter Chairman, President and Chief Executive Officer (duly authorized officer)
Date: December 6, 2019	By:	/s/ Scott J. Robinson
		Scott J. Robinson Senior Vice President and Chief Financial Officer (principal financial officer)
Date: December 6, 2019	By:	/s/ Peter J. Keller
		Peter J. Keller Corporate Controller (principal accounting officer)

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