8-K - FULLER H B CO (0000039368) (Filer)

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): October 19, 2026

H.B. Fuller Company

(Exact Name of Company as Specified in Charter)

Minnesota

001-09225

41-0268370

(State or other jurisdiction of

incorporation)

(Commission File Number)

(IRS Employer Identification No.)

1200 Willow Lake Boulevard, P.O. Box 64683, St. Paul, Minnesota		55164-0683
(Address of principal executive offices)		(Zip Code)

Company’s telephone number, including area code: (651) 236-5900

(Former name or former address, if changed since last report)

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:

☐	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 $1.00	FUL	NYSE

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 8.01

Other Events.

On October 19, 2026, H.B. Fuller Company (the “Company”) issued a press release announcing that the Company’s Board of Directors has unanimously rejected Ancora Holdings Group LLC’s second unsolicited, non-binding proposal to acquire the Company’s Building Adhesive Solutions business and that the Company has determined it will conduct a market check involving select market segments and product lines. A copy of the press release is filed as Exhibit 99.1 hereto.

Item 9.01.

Financial Statements and Exhibits.

(d)

Exhibits.

	99.1	Press Release, dated October 19, 2026, issued by H.B. Fuller Company
	104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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.

Date: October 19, 2026

	H.B. FULLER COMPANY



	By:	/s/ Gregory O. Ogunsanya
		Gregory O. Ogunsanya
		Senior Vice President, General Counsel and Corporate Secretary