Form 8-K
8-K — GT Biopharma, Inc.
Accession: 0001493152-26-044309
Filed: 2026-09-25
Period: 2026-09-22
CIK: 0000109657
SIC: 2834 (PHARMACEUTICAL PREPARATIONS)
Item: Other Events
Item: Financial Statements and Exhibits
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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: September 22, 2026
(Date
of earliest event reported)
GT
Biopharma, Inc.
(Exact
name of registrant as specified in its charter)
Delaware
(State
or other Jurisdiction of Incorporation)
1-40023
94-1620407
(Commission
File
Number)
(IRS
Employer
Identification
No.)
N/A1
(Address
of Principal Executive Offices and zip code)
(415)-919-4040
(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 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))
☐
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 Series
Trading
Symbol(s)
Name
of each Exchange on which registered
Common
stock, $0.001 par value
GTBP
The
Nasdaq Stock Market LLC
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. ☐
1Effective
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 505 Montgomery Street, 10th Floor,
San Francisco, California 94111, or by email to auditcommittee@gtbiopharma.com.
Item
8.01 Other Events.
As
previously disclosed, on November 20, 2025, GT Biopharma, Inc. (the “Company”) received a letter from the Nasdaq Listing
Qualifications Staff (the “Staff”) of The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that its common
stock, $0.001 par value per share (the “Common Stock”) had closed below $1.00 per share for 30 consecutive business days
and, as a result, the Company was not in compliance with the $1.00 minimum bid price requirement for continued listing on the Nasdaq
Capital Market, as set forth in Nasdaq Listing Rule 5550(a)(2) (the “Minimum Bid Price Requirement”). On May 20, 2026, the
Company received a letter from the Staff notifying the Company that the Staff granted the Company an additional compliance period of
180 calendar days, or until November 16, 2026, to regain compliance with the Minimum Bid Price Requirement.
On
September 22, 2026, the Company received notice from Nasdaq that it has regained compliance with the Minimum Bid Price Requirement under
the Nasdaq Listing Rules. The Company’s Common Stock maintained a closing bid price above $1.00 per share for at least ten consecutive
business days, thereby meeting Nasdaq’s requirements for regaining compliance.
Item
9.01 Financial Statements and Exhibits.
(d)
Exhibits
Exhibit
No.
Description
104
Cover
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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 25, 2026
By:
/s/
Alan Urban
Alan
Urban
Chief
Financial Officer
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Entity File Number
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Entity Registrant Name
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Biopharma, Inc.
Entity Central Index Key
0000109657
Entity Tax Identification Number
94-1620407
Entity Incorporation, State or Country Code
DE
Entity Address, Address Line One
505 Montgomery Street
Entity Address, Address Line Two
10th Floor
Entity Address, City or Town
San Francisco
Entity Address, State or Province
CA
Entity Address, Postal Zip Code
94111
City Area Code
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Local Phone Number
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Trading Symbol
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Security Exchange Name
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