Form 8-K

8-K — TWIN DISC INC

Accession: 0001437749-26-015031

Filed: 2026-05-06

Period: 2026-05-06

CIK: 0000100378

SIC: 3560 (GENERAL INDUSTRIAL MACHINERY & EQUIPMENT)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — twin20260501c_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (ex_954677.htm)

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8-K — FORM 8-K

8-K (Primary)

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0000100378

2026-05-06

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) May 6, 2026

TWIN DISC, INCORPORATED

(Exact name of registrant as specified in its charter)

Wisconsin

001-7635

39-0667110

(State or other jurisdiction

(Commission

(IRS Employer

of incorporation)

File Number)

Identification No.)

222 East Erie Street, Suite 400 Milwaukee, Wisconsin 53202

(Address of principal executive offices)

Registrant's telephone number, including area code: (262) 638-4000

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 (No Par Value)

TWIN

The NASDAQ Stock Market LLC

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 7.01

Regulation FD Disclosure

The executive officers of Twin Disc intend to present materials at meetings with investors and analysts and at investor conferences on or after May 6, 2026. A copy of the presentation materials to be used at those meetings and from time to time thereafter is filed as Exhibit 99.1 hereto. The presentation materials will also be posted on the Company’s website, www.twindisc.com The Company does not intend to file any update of these presentation materials. The fact that these presentation materials are being furnished should not be deemed an admission as to the materiality of any information contained in the materials.

The information included in the presentation includes financial information determined by methods other than in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The Company’s management uses these non-GAAP measures in its analysis of the Company’s performance. The Company believes that the presentation of certain non-GAAP measures provides useful supplemental information that is essential to a proper understanding of the operating results of the Company’s core businesses. These non-GAAP disclosures should not be viewed as a substitute for operating results determined in accordance with GAAP, nor are they necessarily comparable to non-GAAP performance measures that may be presented by other companies.

The information in this Form 8-K being furnished under Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities and Exchange Act of 1934 (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

The presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The words “believes,” “expects,” “intends,” “plans,” “anticipates,” “hopes,” “likely,” “will,” and similar expressions identify such forward-looking statements. These statements are based on the Company’s expectations and involve risks, uncertainties and other important factors that could cause the actual results performance or achievements of the Company (or entities in which the Company has interests), or industry results, to differ materially from future results, performance or achievements expressed or implied by such forward-looking statements. Certain factors that could cause the Company’s actual future results to differ materially from those discussed are noted in connection with such statements, but other unanticipated factors could arise. Certain risks regarding the Company’s forward-looking statements are discussed in the Company’s filings with the Securities and Exchange Commission, including an extensive discussion of these risks in the Company’s Annual Report on Form 10-K for the year ended June 30, 2025. Readers are cautioned not to place undue reliance on these forward-looking statements which reflect management’s view only as of the date of this Form 8-K. The Company undertakes no obligation to publicly release any revisions to these forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events, conditions or circumstances.

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits.

EXHIBIT NUMBER

DESCRIPTION

99.1

Presentation Materials

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

Pursuant to the requirements of section 13 or 15(d) 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: May 6, 2026

Twin Disc, Incorporated

/s/ Jeffrey S. Knutson

Jeffrey S. Knutson

Vice President-Finance, Chief Financial

Officer, Treasurer & Secretary

EX-99.1 — EXHIBIT 99.1

EX-99.1

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May 06, 2026

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