8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

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

Date of Report (Date of earliest event reported) June 12, 2025

Registrant’s telephone number, including

area code 207-878-2770

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:

Securities registered pursuant to Section 12(b) of the Act:

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

The 2025 Annual Meeting of Stockholders of the Company (the “2025 Annual Meeting”) was held by remote communication in the form of both a dial-in conference call and an audio webcast rather than an in-person event on Thursday, June 12, 2025, at 9:30 a.m. Eastern Time, for the following purposes:

At the 2025 Annual Meeting, there were present in person or by proxy 7,048,097 shares of the Company’s common stock, representing more than 78% of the total outstanding eligible votes. The final voting results for each proposal are as follows:

On the basis of this vote, each of the seven nominees was elected to a one-year term as a Director of the Company.

42.66% of the shares voting at this meeting in person or by proxy voted in favor. On the basis of this vote, the non-binding advisory resolution on the Company’s executive compensation program was not approved.

41.10% of the shares voting at this meeting in person or by proxy voted in favor. On the basis of this vote, the amendment to the Company’s 2017 Stock Option and Incentive Plan, increasing the number of shares of the Company’s common stock reserved for issuance under such plan from 650,000 shares to 900,000 shares, was not approved.

95.93% of the shares voting at this meeting in person or by proxy voted in favor. On the basis of this vote, the Audit Committee’s selection of Wipfli LLP as the Independent Registered Public Accounting Firm of the Company for the year ending December 31, 2025 was ratified.

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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.

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