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) April 20, 2026

Lightwave Logic, Inc.

(Exact name of registrant as specified in its charter)

369 Inverness Parkway, Suite 350, Englewood, CO 80112

(Address of principal executive offices, including Zip Code)

(720) 340-4949

(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:

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 1.01. Entry into a Material Definitive Agreement.

On April 20, 2026, Lightwave Logic, Inc. (the “Company”) entered into an amendment to its sales agreement (as amended, the “Sales Agreement”) with Roth Capital Partners, LLC, as sales agent, to, among other things, increase the amount of shares of common stock that may be sold under the Sales Agreement to $51,404,500. Since our entry into the Sales Agreement, we have offered and sold 8,079,319 shares of common stock for gross proceeds of approximately $35 million.

The issuance of the shares under the Sales Agreement have been registered pursuant to the Company’s effective shelf registration statement on Form S-3 (File No. 333-281059) (the “Registration Statement”), and the related base prospectus included in the Registration Statement, as supplemented by a prospectus supplement filed on August 9, 2024 and a prospectus supplement filed on April 21, 2026. The legal opinion of Snell & Wilmer L.L.P. relating to the legality of the issuance and sale of the shares under the Sales Agreement is attached as Exhibit 5.1 to this Current Report on Form 8-K.

This Current Report on Form 8-K shall not constitute an offer to sell or the solicitation of an offer to buy any shares of the Company’s common stock, nor shall there be any offer, solicitation or sale of shares of the Company’s common stock in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits:

SIGNATURES

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.