GT Biopharma, Inc.
45 SEC EDGAR filings indexed (CIK 0000109657) across 13 form types.
Filing profile
GT Biopharma, Inc. (GTBP) has 45 SEC filings indexed on SecFilingDex, across 13 form types filed over roughly 2 years, from February 7, 2025 to October 9, 2026. The filer is classified under Pharmaceutical Preparations (SIC 2834).
Its most frequent disclosure is the 8-K (Material event) with 8 filings — Current report announcing a material event, such as an acquisition, executive change, or earnings release. 24 of these filings were disclosed in the twelve months to October 9, 2026. 5 of the 45 are amendments (a corrected or updated version of an earlier filing).
Disclosure mix
- 88-KMaterial event · event-driven
- 6424B3Updated prospectus · event-driven
- 5S-1IPO registration · event-driven (pre-ipo)
- 510-QQuarterly report · quarterly
- 5Form 4Insider transaction · within 2 business days of transaction
- 3PRE 14ASEC filing
- 3Form 3Initial insider ownership · within 10 days of becoming an insider
- 2DEF 14AProxy statement · annual (pre-meeting)
- 210-Q/AQuarterly report · quarterly
- 210-KAnnual report · annual
- 2S-1/AIPO registration · event-driven (pre-ipo)
- 1DEFA14ASEC filing
- 110-K/AAnnual report · annual
Profile derived from 45 indexed filings; every figure traces to the filing records above, each linking back to its original SEC EDGAR document. Filing counts reflect SecFilingDex's current index, not the filer's complete EDGAR history.
All filings
- S-1IPO registrationFiled · 0001493152-26-046618
- PRE 14ASEC filingFiled · 0001493152-26-045611
- 10-QQuarterly report · period of report Jun 30, 2026Filed · 0001493152-26-037988
- 8-KMaterial event · period of report Aug 14, 2026Filed · 0001493152-26-038446
- DEF 14AProxy statement · period of report Jul 2, 2026Filed · 0001493152-26-031922
- PRE 14ASEC filing · period of report Jun 18, 2026Filed · 0001493152-26-029362
- 8-KMaterial event · period of report Jun 8, 2026Filed · 0001493152-26-028457
- 8-KMaterial event · period of report May 20, 2026Filed · 0001493152-26-024913
- 10-QQuarterly report · period of report Mar 31, 2026Filed · 0001493152-26-023346
- 424B3Updated prospectusFiled · 0001493152-26-022795
- S-1IPO registrationFiled · 0001493152-26-020697
- 8-KMaterial event · period of report Apr 3, 2026Filed · 0001493152-26-015413
- 10-Q/AQuarterly report · period of report Sep 30, 2025Filed · 0001493152-26-009126
- 10-Q/AQuarterly report · period of report Jun 30, 2025Filed · 0001493152-26-009127
- 8-KMaterial event · period of report Mar 1, 2026Filed · 0001493152-26-008442
- 10-KAnnual report · period of report Dec 31, 2025Filed · 0001493152-26-008443
- 424B3Updated prospectusFiled · 0001493152-26-004547
- S-1IPO registrationFiled · 0001493152-26-003089
- 424B3Updated prospectusFiled · 0001493152-26-000976
- 424B3Updated prospectusFiled · 0001493152-25-025796
- 8-KMaterial event · period of report Nov 20, 2025Filed · 0001493152-25-025162
- 8-KMaterial event · period of report Nov 14, 2025Filed · 0001493152-25-022631
- 10-QQuarterly report · period of report Sep 30, 2025Filed · 0001493152-25-023400
- S-1IPO registrationFiled · 0001493152-25-019296
- 8-KMaterial event · period of report Sep 25, 2025Filed · 0001493152-25-015725
- Form 4Insider transaction · period of report Sep 4, 2025Filed · 0001641172-25-026890
- Form 4Insider transaction · period of report Sep 4, 2025Filed · 0001641172-25-026891
- Form 4Insider transaction · period of report Sep 4, 2025Filed · 0001641172-25-026892
- Form 4Insider transaction · period of report Sep 4, 2025Filed · 0001641172-25-026893
- Form 4Insider transaction · period of report Sep 4, 2025Filed · 0001641172-25-026894
- 10-QQuarterly report · period of report Jun 30, 2025Filed · 0001493152-25-011971
- Form 3Initial insider ownership · period of report Jun 10, 2025Filed · 0001641172-25-021546
- 424B3Updated prospectusFiled · 0001641172-25-017705
- S-1/AIPO registrationFiled · 0001641172-25-016977
- DEF 14AProxy statement · period of report Jun 11, 2025Filed · 0001641172-25-014721
- DEFA14ASEC filingFiled · 0001641172-25-014722
- S-1IPO registrationFiled · 0001641172-25-014752
- Form 3Initial insider ownership · period of report May 7, 2025Filed · 0001641172-25-013435
- PRE 14ASEC filing · period of report May 30, 2025Filed · 0001641172-25-013033
- Form 3Initial insider ownership · period of report May 8, 2025Filed · 0001641172-25-012862
- 10-QQuarterly report · period of report Mar 31, 2025Filed · 0001641172-25-010790
- 10-K/AAnnual report · period of report Dec 31, 2024Filed · 0001641172-25-004563
- 424B3Updated prospectusFiled · 0001493152-25-010276
- 10-KAnnual report · period of report Dec 31, 2024Filed · 0001493152-25-007908
- S-1/AIPO registrationFiled · 0001493152-25-005314
Authoritative source
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