FULLER H B CO

Item 8.01 Other Events. On October 8, 2026, H.B. Fuller Company issued a press release, made pursuant to Rule 135c promulgated under the Securities Act of 1933, as amended (the “Securities Act”), announcing the pricing of a previously announced offering of $850 million aggregate principal amount of 7.625% senior unsecured notes due 2034 (the “Notes”) in a private offering that is exempt from the registration requirements of the Securities Act. The Notes are being offered only to persons reasonably believed to be qualified institutional buyers in reliance on Rule 144A under the Securities Act, or, outside the United States, to persons other than “U.S. persons” in compliance with Regulation S under the Securities Act. Neither the press release nor this Current Report on Form 8-K constitutes an offer to sell or the solicitation of an offer to buy the Notes. The Notes have not been and will not be registered under the Securities Act, or the securities laws of any other jurisdiction, and may not be offered or sold in the United States without registration or an applicable exemption from registration requirements. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein.