GT Biopharma, Inc. SEC filings GTBP

GT Biopharma, Inc. has 883 filings in SEC EDGAR's recent list, going back to May 12, 1995. Its latest annual report, Form 10-K, was filed on Mar 2, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 25, 2026 (other events). The company's fiscal year ends on December 31.

GT Biopharma, Inc. SEC filings
Form	Description	Filed	Period
10-K	Annual report	Mar 2, 2026	Dec 31, 2025
10-K/A	Amended annual report	Apr 14, 2025	Dec 31, 2024
10-K	Annual report	Feb 21, 2025	Dec 31, 2024
ARS	Annual report to shareholders	Apr 29, 2024	Dec 31, 2023
10-K	Annual report	Mar 26, 2024	Dec 31, 2023
10-K	Annual report	Mar 30, 2023	Dec 31, 2022
10-K	Annual report	Mar 28, 2022	Dec 31, 2021
10-K	Annual report	Apr 16, 2021	Dec 31, 2020
10-K	Annual report	Mar 27, 2020	Dec 31, 2019
10-K	Annual report	Mar 29, 2019	Dec 31, 2018
10-K	Annual report	Mar 1, 2018	Dec 31, 2017
10-K/A	Amended annual report	Feb 28, 2018	Dec 31, 2016
10-K/A	Amended annual report	Feb 28, 2018	Dec 31, 2015
10-K	Annual report	Mar 31, 2017	Dec 31, 2016
10-K	Annual report	Mar 30, 2016	Dec 31, 2015
10-K	Annual report	Mar 31, 2015	Dec 31, 2014
10-K	Annual report	Jan 8, 2015	Dec 31, 2013
10-K	Annual report	Nov 18, 2014	Dec 31, 2012
10-K	Annual report	Apr 16, 2012	Dec 31, 2011
10-K	Annual report	Mar 31, 2011	Dec 31, 2010
10-K	Annual report	Mar 30, 2010	Dec 31, 2009
10-K	Annual report	Sep 25, 2009	Dec 31, 2008
ARS	Annual report to shareholders	Jun 21, 2006	Dec 31, 2005
10-K	Annual report	Mar 23, 2001	Dec 31, 2000
10-K/A	Amended annual report	Apr 30, 1999	Dec 31, 1998
10-K	Annual report	Mar 30, 1999	Dec 31, 1998
10-K	Annual report	Mar 26, 1998	Dec 31, 1997
10-K	Annual report	Mar 31, 1997	Dec 31, 1996
10-K/A	Amended annual report	Aug 22, 1996	Dec 31, 1995
10-K	Annual report	Mar 29, 1996	Dec 31, 1995
10-K/A	Amended annual report	Aug 30, 1995	Dec 31, 1994

Showing 31 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

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Company profile

Industry: Pharmaceutical Preparations (SIC 2834)
Listed as: GTBP (Nasdaq)
Fiscal year ends: December 31
Incorporated in: DE
Headquarters: San Francisco, CA
SEC filer status: Non-accelerated filer, Smaller reporting company
SEC CIK: 109657
Former names: GT Biopharma, Inc. (until Oct 20, 2026); OXIS INTERNATIONAL INC (until Jul 25, 2017)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.