Company · CIK 109657 # GT Biopharma, Inc. | CIK | [109657](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000109657) (SEC EDGAR) | | --- | --- | | Industry (SIC) | 2834 — Pharmaceutical Preparations | | Incorporated in | DE | | Business address | CA | | Listed | GTBP (Nasdaq) | | First annual or quarterly report | 1995-05-12 | ## Offerings 18 registrations | Registration | Label and status | First filed | Last event | Filings | | --- | --- | --- | --- | --- | | 333-299408 | Registered company Effective | 2026-10-09 | 2026-10-20 | 2 | | 333-295461 | Registered company Effective | 2026-04-30 | 2026-05-13 | 2 | | 333-292856 | Registered company Effective | 2026-01-21 | 2026-01-30 | 2 | | 333-291060 | Registered company Effective | 2025-10-24 | 2025-12-02 | 2 | | 333-287963 | Registered company Effective | 2025-06-11 | 2025-07-02 | 3 | | 333-285618 | Shelf Effective | 2025-03-06 | 2025-03-13 | 2 | | 333-284032 | Registered company Withdrawn | 2024-12-23 | 2025-02-24 | 4 | | 333-280326 | Registered company Effective | 2024-06-20 | 2024-06-28 | 3 | | 333-267870 | Shelf Effective | 2022-10-13 | 2024-05-23 | 4 | | 333-255429 | Registered company Effective | 2021-04-22 | 2021-04-27 | 2 | | 333-251311 | Registered company Final prospectus | 2020-12-11 | 2021-04-22 | 7 | | 333-239858 | Registered company Effective | 2020-07-14 | 2020-07-28 | 2 | | 333-233748 | Registered company Effective | 2019-09-13 | 2019-10-02 | 2 | | 333-232261 | Registered company Effective | 2019-06-21 | 2019-07-12 | 3 | | 333-229667 | Shelf Effective | 2019-02-14 | 2019-03-11 | 2 | | 333-223348 | Shelf Effective | 2018-03-01 | 2018-03-22 | 2 | | 333-223349 | Shelf Effective | 2018-03-01 | 2018-03-22 | 2 | | 333-213270 | Registered company Withdrawn | 2016-08-24 | 2017-07-24 | 9 | ## Filings 58 | Filed | Filing | Registration | Accession | | --- | --- | --- | --- | | 2026-10-20 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999526003305/9999999995-26-003305-index.htm) Declared effective | 333-299408 | 9999999995-26-003305 | | 2026-10-09 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000149315226046618/0001493152-26-046618-index.htm) Registration filed | 333-299408 | 0001493152-26-046618 | | 2026-05-13 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999526001620/9999999995-26-001620-index.htm) Declared effective | 333-295461 | 9999999995-26-001620 | | 2026-04-30 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000149315226020697/0001493152-26-020697-index.htm) Registration filed | 333-295461 | 0001493152-26-020697 | | 2026-01-30 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999526000420/9999999995-26-000420-index.htm) Declared effective | 333-292856 | 9999999995-26-000420 | | 2026-01-21 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000149315226003089/0001493152-26-003089-index.htm) Registration filed | 333-292856 | 0001493152-26-003089 | | 2025-12-02 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999525003476/9999999995-25-003476-index.htm) Declared effective | 333-291060 | 9999999995-25-003476 | | 2025-10-24 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000149315225019296/0001493152-25-019296-index.htm) Registration filed | 333-291060 | 0001493152-25-019296 | | 2025-07-02 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999525002145/9999999995-25-002145-index.htm) Declared effective | 333-287963 | 9999999995-25-002145 | | 2025-06-27 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000164117225016977/0001641172-25-016977-index.htm) Amendment | 333-287963 | 0001641172-25-016977 | | 2025-06-11 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000164117225014752/0001641172-25-014752-index.htm) Registration filed | 333-287963 | 0001641172-25-014752 | | 2025-03-13 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999525000665/9999999995-25-000665-index.htm) Declared effective | 333-285618 | 9999999995-25-000665 | | 2025-03-06 | [S-3](https://www.sec.gov/Archives/edgar/data/109657/000149315225009422/0001493152-25-009422-index.htm) Shelf registered | 333-285618 | 0001493152-25-009422 | | 2025-02-24 | [RW](https://www.sec.gov/Archives/edgar/data/109657/000149315225007976/0001493152-25-007976-index.htm) Withdrawn | 333-284032 | 0001493152-25-007976 | | 2025-02-07 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000149315225005314/0001493152-25-005314-index.htm) Amendment | 333-284032 | 0001493152-25-005314 | | 2025-01-27 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000149315225003718/0001493152-25-003718-index.htm) Amendment | 333-284032 | 0001493152-25-003718 | | 2024-12-23 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000149315224051873/0001493152-24-051873-index.htm) Registration filed | 333-284032 | 0001493152-24-051873 | | 2024-06-28 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999524002019/9999999995-24-002019-index.htm) Declared effective | 333-280326 | 9999999995-24-002019 | | 2024-06-27 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000149315224025390/0001493152-24-025390-index.htm) Amendment | 333-280326 | 0001493152-24-025390 | | 2024-06-20 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000149315224024367/0001493152-24-024367-index.htm) Registration filed | 333-280326 | 0001493152-24-024367 | | 2024-05-23 | [424B5](https://www.sec.gov/Archives/edgar/data/109657/000149315224021081/0001493152-24-021081-index.htm) Shelf takedown | 333-267870 | 0001493152-24-021081 | | 2023-01-04 | [424B5](https://www.sec.gov/Archives/edgar/data/109657/000149315223000171/0001493152-23-000171-index.htm) Shelf takedown | 333-267870 | 0001493152-23-000171 | | 2022-10-20 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999522003098/9999999995-22-003098-index.htm) Declared effective | 333-267870 | 9999999995-22-003098 | | 2022-10-13 | [S-3](https://www.sec.gov/Archives/edgar/data/109657/000149315222028353/0001493152-22-028353-index.htm) Shelf registered | 333-267870 | 0001493152-22-028353 | | 2021-04-27 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999521001585/9999999995-21-001585-index.htm) Declared effective | 333-255429 | 9999999995-21-001585 | | 2021-04-22 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999521001533/9999999995-21-001533-index.htm) Declared effective | 333-251311 | 9999999995-21-001533 | | 2021-04-22 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000165495421004510/0001654954-21-004510-index.htm) Registration filed | 333-255429 | 0001654954-21-004510 | | 2021-02-12 | [424B4](https://www.sec.gov/Archives/edgar/data/109657/000165495421001543/0001654954-21-001543-index.htm) Final prospectus | 333-251311 | 0001654954-21-001543 | | 2021-02-10 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999521000547/9999999995-21-000547-index.htm) Declared effective | 333-251311 | 9999999995-21-000547 | | 2021-02-09 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000165495421001333/0001654954-21-001333-index.htm) Amendment | 333-251311 | 0001654954-21-001333 | | 2021-02-08 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000165495421001271/0001654954-21-001271-index.htm) Amendment | 333-251311 | 0001654954-21-001271 | | 2021-02-02 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000165495421001056/0001654954-21-001056-index.htm) Amendment | 333-251311 | 0001654954-21-001056 | | 2020-12-11 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000165495420013481/0001654954-20-013481-index.htm) Registration filed | 333-251311 | 0001654954-20-013481 | | 2020-07-28 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999520001942/9999999995-20-001942-index.htm) Declared effective | 333-239858 | 9999999995-20-001942 | | 2020-07-14 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000165495420007687/0001654954-20-007687-index.htm) Registration filed | 333-239858 | 0001654954-20-007687 | | 2019-10-02 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999519002230/9999999995-19-002230-index.htm) Declared effective | 333-233748 | 9999999995-19-002230 | | 2019-09-13 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000165495419010735/0001654954-19-010735-index.htm) Registration filed | 333-233748 | 0001654954-19-010735 | | 2019-07-12 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999519001582/9999999995-19-001582-index.htm) Declared effective | 333-232261 | 9999999995-19-001582 | | 2019-07-11 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000165495419008149/0001654954-19-008149-index.htm) Amendment | 333-232261 | 0001654954-19-008149 | | 2019-06-21 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000165495419007544/0001654954-19-007544-index.htm) Registration filed | 333-232261 | 0001654954-19-007544 | | 2019-03-11 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999519000413/9999999995-19-000413-index.htm) Declared effective | 333-229667 | 9999999995-19-000413 | | 2019-02-14 | [S-3](https://www.sec.gov/Archives/edgar/data/109657/000165495419001492/0001654954-19-001492-index.htm) Shelf registered | 333-229667 | 0001654954-19-001492 | | 2018-03-22 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999518000655/9999999995-18-000655-index.htm) Declared effective | 333-223349 | 9999999995-18-000655 | | 2018-03-22 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999518000654/9999999995-18-000654-index.htm) Declared effective | 333-223348 | 9999999995-18-000654 | | 2018-03-01 | [S-3](https://www.sec.gov/Archives/edgar/data/109657/000165495418002052/0001654954-18-002052-index.htm) Shelf registered | 333-223349 | 0001654954-18-002052 | | 2018-03-01 | [S-3](https://www.sec.gov/Archives/edgar/data/109657/000165495418002051/0001654954-18-002051-index.htm) Shelf registered | 333-223348 | 0001654954-18-002051 | | 2017-07-24 | [RW](https://www.sec.gov/Archives/edgar/data/109657/000093979817000060/0000939798-17-000060-index.htm) Withdrawn | 333-213270 | 0000939798-17-000060 | | 2017-02-10 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000093979817000020/0000939798-17-000020-index.htm) Amendment | 333-213270 | 0000939798-17-000020 | | 2017-01-24 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000093979817000008/0000939798-17-000008-index.htm) Amendment | 333-213270 | 0000939798-17-000008 | | 2016-12-28 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000093979816000170/0000939798-16-000170-index.htm) Amendment | 333-213270 | 0000939798-16-000170 | | 2016-11-21 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000093979816000164/0000939798-16-000164-index.htm) Amendment | 333-213270 | 0000939798-16-000164 | | 2016-10-31 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000093979816000153/0000939798-16-000153-index.htm) Amendment | 333-213270 | 0000939798-16-000153 | | 2016-10-03 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000093979816000149/0000939798-16-000149-index.htm) Amendment | 333-213270 | 0000939798-16-000149 | | 2016-08-25 | [S-1/A](https://www.sec.gov/Archives/edgar/data/109657/000093979816000146/0000939798-16-000146-index.htm) Amendment | 333-213270 | 0000939798-16-000146 | | 2016-08-24 | [S-1](https://www.sec.gov/Archives/edgar/data/109657/000093979816000145/0000939798-16-000145-index.htm) Registration filed | 333-213270 | 0000939798-16-000145 | | 2007-05-25 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999507002100/9999999995-07-002100-index.htm) Declared effective | 333-139216 | 9999999995-07-002100 | | 2007-05-25 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999507002097/9999999995-07-002097-index.htm) Declared effective | 333-123008 | 9999999995-07-002097 | | 2007-02-12 | [EFFECT](https://www.sec.gov/Archives/edgar/data/109657/999999999507000589/9999999995-07-000589-index.htm) Declared effective | 333-139216 | 9999999995-07-000589 | [All filings of this company](https://equitycapital.markets/filings?cik=109657) · [CSV](https://equitycapital.markets/filings.csv?cik=109657) --- Source page: https://equitycapital.markets/company/109657 · Data: U.S. SEC EDGAR · CC BY 4.0