GT Biopharma, Inc. GTBP (last ticker on record)

CIK 109657Its SEC filings (opens in a new tab)

Restructuring
95% wipeout
Delisting notice (not a red flag)
Restatement

These figures describe clients, not conduct. A lawyer or firm can serve many companies that later had trouble for reasons that have nothing to do with their work, and nothing here says any lawyer or firm did anything wrong.

Red flags: 3; Newest began Mar 2026
Largest fall in its shares: 99%; Jun 2021 to Sep 2026
Law firms: 9; Linked to 5 or more companies
Lawyers: 10; Linked to 5 or more companies

What happened

May 22, 2026Delisting notice (Item 3.01)Form 8-K (opens in a new tab)
Mar 2, 2026Said its accounts could not be relied on (Item 4.02)Form 8-K (opens in a new tab)
Nov 26, 2025Delisting notice (Item 3.01)Form 8-K (opens in a new tab)
Nov 27, 2024Delisting notice (Item 3.01)Form 8-K (opens in a new tab)
Aug 22, 2023Delisting notice (Item 3.01)Form 8-K (opens in a new tab)
Feb 28, 2023Delisting notice (Item 3.01)Form 8-K (opens in a new tab)
Jan 24, 2023Shares down 95% from their high
Nov 26, 2021Delisting notice (Item 3.01)Form 8-K (opens in a new tab)
Apr 16, 2021Said its accounts could not be relied on (Item 4.02)Form 8-K (opens in a new tab)
Feb 21, 2018Said its accounts could not be relied on (Item 4.02)Form 8-K (opens in a new tab)
Aug 2, 2016Shares down 95% from their high
Sep 21, 2006Debt accelerated (Item 2.04)Form 8-K (opens in a new tab)
Dec 8, 2005Exit or disposal costs (Item 2.05)Form 8-K (opens in a new tab)
Jan 10, 2005Debt accelerated (Item 2.04)Form 8-K (opens in a new tab)

An SEC release can name a company’s officer, or its stock as what a scheme sold or moved, so the company may be the victim. Each link goes to what to read.

Law firms

The ratios are about all the companies linked to each one, this one included: how many had that outcome, as a multiple of what comparable companies show. 1.00 means no more than expected.

Law firms linked to this company
Name	First linked	How it is known	Linked companies	SEC/DOJ scrutiny	Went dark	95% wipeout
Baker & Hostetler	Jun 2025	Named in SEC correspondence	231	1.11	1.12	1.35
Stubbs Alderton & Markiles, LLP	Dec 2021	Named in SEC correspondence	45	1.40	0.86	0.94
Baker & McKenzie	Jul 2020	Named in SEC correspondence	587	1.07	0.72	1.00
DLA Piper	Aug 2016	Named in SEC correspondence	1,184	1.00	0.45	1.20
TroyGould PC	Dec 2010	Named in SEC correspondence	125	0.73	1.37	1.25
Richardson & Patel LLP	Nov 2006	Named in SEC correspondence	215	1.07	1.41	1.28
Tonkon Torp	Jul 2000	Named in a filing	24	0.31	0.00	0.71
Morrison & Foerster	Mar 2000	Named in SEC correspondence	825	1.17	0.55	1.15
JACKSON TUFTS COLE & BLACK, LLP	Jul 1995	Named in SEC correspondence	6	0.66	0.00	1.69

Lawyers

The ratios are about all the companies linked to each one, this one included: how many had that outcome, as a multiple of what comparable companies show. 1.00 means no more than expected.

Lawyers linked to this company
Name	First linked	How it is known	Linked companies	SEC/DOJ scrutiny	Went dark	95% wipeout
Alan A. Lanis Jr.Baker & Hostetler	Jun 2025	Named in SEC correspondence	8	1.83	3.21	1.13
Louis WhartonStubbs Alderton & Markiles, LLP	Dec 2021	Named in SEC correspondence	9	1.82	1.85	1.27
Roger W. BivansBaker & McKenzie	Dec 2020	Named in SEC correspondence	18	0.65	1.43	1.58
Jonathan B. NewtonBaker & McKenzie	Jul 2020	Named in a filing	20	1.66	0.00	0.99
Michael S. HamiltonKing & Spalding	Jul 2020	Named in SEC correspondence	11	0.00	0.00	1.46
Stephen M. FlemingStephen M. Fleming	Sep 2008	Named in a filing	84	1.08	1.15	1.06
Kevin K. LeungRichardson & Patel LLP	Dec 2006	Named in SEC correspondence	34	0.52	0.97	1.49
Thomas P. PalmerTonkon Torp	Jul 2000	Named in a filing	8	0.00	0.00	1.37
Richard ScudellariMorrison & Foerster	Jul 1995	Named in SEC correspondence	8	0.76	0.00	1.37
Paul E. HurdlowDLA Piper	Oct 2016	Text search only	11	0.83	0.00	1.53