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): July 23, 2025

PROPHASE LABS, INC.

(Exact name of Company as specified in its charter)

Registrant’s telephone number, including area code: (215) 345-0919

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Company under any of the following provisions (see General Instruction A.2. below):

Securities Registered Pursuant to Section 12(b) of the Exchange 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 7.01 Regulation FD Disclosure.

On July 23, 2025, the Company issued a press announcing that the Company has closed a private placement under Rule 506(b) of Regulation D with two investors for $3 million Senior Secured Convertible Notes financing. A copy of the press release is being furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information contained in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 8.01. Other Events

On Wednesday, July 23 2025, ProPhase Labs, Inc. (the “Company”) announced the closing of a private placement financing with two investors for $3 million in senior secured convertible notes with accompanying warrants to purchase shares of common stock.

The notes were issued with a 20% original issue discount, are secured by the Company and subsidiary assets, and may be prepaid at any time without penalty. The notes are not convertible for the first four months after issuance. The warrants are exercisable at $0.50 per share. The transaction has been completed in accordance with the terms of a Securities Purchase Agreement, which contains such requirements for the Company as to authorize additional shares of common stock and take steps to obtain an effective registration statement. Up to an additional $3,000,000 in notes may be purchased by the investors as outlined in the Securities Purchase Agreement.

The proceeds from the financing will be used for working capital and general corporate purposes and to repay certain existing debt.

The definitive transaction documents related to the financing will be filed as exhibits to a Current Report on Form 8-K with the Securities and Exchange Commission within four business days, as required.

Forward-Looking Statements

This Current Report on Form 8-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements contained in this Current Report on Form 8-K other than statements of historical fact are forward-looking statements. Such forward-looking statements include, among other things, statements regarding the Company’s ability to regain compliance with Nasdaq listing standards or receive additional time from Nasdaq to regain compliance if necessary. Such statements can be identified by the fact that they do not relate strictly to historical or current facts. Words such as “believes,” “anticipates,” “plans,” “expects,” “intends,” “will,” “goal,” “potential” and the negative of such terms or other similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Such forward-looking statements are based on the Company’s current expectations and involve assumptions that may never materialize or may prove to be incorrect. Actual results could differ materially from those projected in any forward-looking statements due to numerous risks and uncertainties. Information regarding the foregoing and additional risks may be found in the section entitled “Risk Factors” in documents that the Company files from time to time with the Securities and Exchange Commission. These forward-looking statements are made as of the date of this Current Report on Form 8-K, and the Company undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Pursuant to the requirements of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: July 23, 2025