UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
CURRENT REPORT
Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934
Date
of Report:
(Date of earliest event reported)
(Exact name of registrant as specified in its charter)
(State or other Jurisdiction of Incorporation)
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N/A1
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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of 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(b) under the Exchange Act (17 CFR 240.14a-12(b)) | |
| Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) | |
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Securities registered pursuant to Section 12(b) of the Act:
| Title of each Class | Trading Symbol(s) | Name of each Exchange on which registered | ||
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. ☐
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Effective as of July 1, 2024, the Company became a fully remote company. We do not maintain a principal executive office. For purposes
of compliance with applicable requirements of the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended,
any stockholder communication required to be sent to the Company’s principal executive offices may be directed to
Item 3.03 Material Modification to Rights of Security Holders.
As previously disclosed, on each of September 17, 2025, September 18, 2025 and September 23, 2025, certain of the holders of GT Biopharma, Inc.’s Series L 10% Convertible Preferred Stock (the “Series L Preferred Stock”) provided a waiver (the “Waiver”) to the Certificate of Designation of Preferences, Rights and Limitations of Series L 10% Convertible Preferred Stock (the “Certificate of Designations”). On September 25, 2025, an additional holder of Series L Preferred Stock provided a Waiver. Pursuant to the Waiver, all Series L Preferred Stockholders have agreed to waive the rights to redemption set forth in Section 10 of the Certificate of Designations.
The foregoing description of the Waiver does not purport to be complete and is qualified in its entirety by reference to the full text of the Waiver, which is attached hereto as Exhibit 10.1 and is incorporated herein by reference.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.
Exhibit Number |
Description | |
| 10.1 | Form of Waiver (incorporated by reference to exhibit 10.1 of GT Biopharma, Inc.’s Form 8-K filed with the Securities and Exchange Commission on September 23, 2025) | |
| 104 | Cover Page Interactive Data File, formatted in Inline XBRL |
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.
| GT BIOPHARMA, INC. | ||
| Date: September 26, 2025 | By: | /s/ Alan Urban |
| Alan Urban | ||
| Chief Financial Officer | ||