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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) April 29, 2026

TENNANT COMPANY

(Exact name of registrant as specified in its charter)

Minnesota	1-16191	41-0572550
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

10400 Clean Street

Eden Prairie, Minnesota

55344

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code

(763) 540-1200

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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, par value $0.375 per share		TNC		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

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. ¨

Item 5.07 Submission of Matters to a Vote of Security Holders.

Tennant Company (the “Company”) held the 2026 Annual Meeting for purposes of electing three directors, ratifying the appointment of Deloitte & Touche LLP as the independent registered public accounting firm of the Company for the year ending December 31, 2026, and providing advisory approval on executive compensation. Results of shareholder voting on these matters were as follows:

	For	Against	Abstain	Broker Non-Vote
1. Each of the following three Class I directors was elected for a three-year term expiring in 2029;
Carol S. Eicher	15,293,111	429,575	343,863	691,034
Maria C. Green	15,271,510	602,556	192,483	691,034
Donal L. Mulligan	15,278,918	443,555	344,076	691,034

		For		Against		Abstain		Broker Non-Vote
2. The appointment of Deloitte & Touche LLP as the independent registered public accounting firm of the Company for the year ending December 31, 2026 was ratified.		16,681,022		58,314		18,247

		For		Against		Abstain		Broker Non-Vote
3. Advisory approval of executive compensation was received.		15,745,471		291,577		29,501		691,034

There were 18,007,425 shares of common stock entitled to vote at the 2026 Annual Meeting, and a total of 16,757,583 (93.05%) shares were represented at the meeting.

SIGNATURES

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

	Tennant Company

Date: May 1, 2026	By:	/s/ Kristin A. Erickson
		Kristin A. Erickson
		Senior Vice President, General Counsel and Corporate Secretary