DLTH

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SEC.gov | Request Rate Threshold Exceeded

U.S. Securities and Exchange Commission

You’ve Exceeded the SEC’s Traffic Limit

Your request rate has exceeded the SEC’s maximum allowable requests per second. Your access to SEC.gov will be limited for 10 minutes.

Current guidelines limit each user to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests. To ensure that SEC.gov remains available to all users, we reserve the right to block IP addresses that submit excessive requests.

The block will be lifted automatically by waiting 10 minutes. Continuing to exceed the SEC’s maximum allowable request rate during the time-out period will extend the duration of the time-out period. To ensure fair access for all users, please reduce the rate of your requests and visit SEC.gov again after the 10 minute time-out period has passed.

For best practices on efficiently downloading information from SEC.gov, including the latest EDGAR filings, visit sec.gov/developer. You can also sign up for email updates on the SEC open data program, including best practices that make it more efficient to download data, and SEC.gov enhancements that may impact scripted downloading processes. For more information, contact opendata@sec.gov.

For more information, please see the SEC’s Web Site Privacy and Security Policy. Thank you for your interest in the U.S. Securities and Exchange Commission.

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Internet Security Policy

By using this site, you are agreeing to security monitoring and auditing. For security purposes, and to ensure that the public service remains available to users, this government computer system employs programs to monitor network traffic to identify unauthorized attempts to upload or change information or to otherwise cause damage, including attempts to deny service to users.

Unauthorized attempts to upload information and/or change information on any portion of this site are strictly prohibited and are subject to prosecution under the Computer Fraud and Abuse Act of 1986 and the National Information Infrastructure Protection Act of 1996 (see Title 18 U.S.C. §§ 1001 and 1030).

To ensure our website performs well for all users, the SEC monitors the frequency of requests for SEC.gov content to ensure automated searches do not impact the ability of others to access SEC.gov content. We reserve the right to block IP addresses that submit excessive requests. Current guidelines limit users to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests.

If a user or application submits more than 10 requests per second, further requests from the IP address(es) may be limited for a brief period. Once the rate of requests has dropped below the threshold for 10 minutes, the user may resume accessing content on SEC.gov. This SEC practice is designed to limit excessive automated searches on SEC.gov and is not intended or expected to impact individuals browsing the SEC.gov website.

Note that this policy may change as the SEC manages SEC.gov to ensure that the website performs efficiently and remains available to all users.

Note: We do not offer technical support for developing or debugging scripted downloading processes.

8-K

false 0001649744 0001649744 2025-12-16 2025-12-16

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): December 16, 2025

DULUTH HOLDINGS INC.

(Exact name of registrant as specified in its charter)

Wisconsin

001-37641

39-1564801

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer Identification No.) 201 East Front Street Mount Horeb, Wisconsin 53572 (Address of principal executive offices, including zip code) (608) 424-1544 (Registrant’s telephone number, including area code)

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

Class B Common Stock, No Par Value

DLTH

NASDAQ Global Select Market 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 2.02 Results of Operations and Financial Condition. On December 16, 2025, Duluth Holdings Inc. (the “Company” or “Duluth Trading”) issued a press release (the “Earnings Press Release”) discussing, among other things, its financial results for its fiscal third quarter ended November 2, 2025. A copy of the Earnings Press Release is furnished as Exhibit 99.1 to this report. Item 7.01 Regulation FD Disclosure. On December 16, 2025, the Company issued an Investor Presentation. A copy of the Investor Presentation is attached as Exhibit 99.2 and is incorporated by reference herein. The information reported in Items 2.02 and 7.01 of this Form 8-K, including Exhibits 99.1 and 99.2, is not deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liabilities of that section. Further, the information reported in Items 2.02 and 7.01 of this Form 8-K, including the Exhibits 99.1 and 99.2, shall not be deemed to be incorporated by reference into the filings of the registrant under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filings. Forward Looking Information Certain matters discussed in this Current Report on Form 8-K and other oral and written statements by representatives of the Company including, but not limited to, the Company’s ability to meet its fiscal 2025 expectations (including its ability to achieve its projected net sales and adjusted EBITDA) and its ability to execute on its growth strategies and its long-term growth targets, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by the use of words such as “may,” “might,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “believe,” “estimate,” “project,” “target,” “predict,” “intend,” “future,” “budget,” “goals,” “potential,” “continue,” “design,” “objective,” “forecasted,” “would,” and other similar expressions. The forward-looking statements are not historical facts, and are based upon Duluth Trading’s current expectations, beliefs, estimates, and projections, and various assumptions, many of which, by their nature, are inherently uncertain and beyond Duluth Trading’s control. Duluth Trading’s expectations, beliefs and projections are expressed in good faith, and Duluth Trading believes there is a reasonable basis for them. However, there can be no assurance that management’s expectations, beliefs, estimates, and projections will be achieved and actual results may vary materially from what is expressed in or indicated by the forward-looking statements. Forward-looking statements are subject to risks and uncertainties that could cause actual performance or results to differ materially from those expressed in the forward-looking statements, including, among others, the risks, uncertainties, and factors set forth under Part 1, Item