GT Biopharma (GTBP) SEC Filings & 10K Form $2.30 -0.12 (-4.96%) Closing price 03/27/2025 04:00 PM EasternExtended Trading$2.30 0.00 (0.00%) As of 03/27/2025 06:13 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share SEC Filings Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Recent GT Biopharma SEC Filings All Filing Types 1 10 10-D 10-K 10-M 10-Q 11-K 12b-25 13F 13H 144 15 15F 17-H 18 18-K 19b-4(e) 19b-4 19b-7 1-A 1-E 1-K 1-N 1-SA 1-U 1-Z 20-F 24F-2 25 2-E 3 4 40-F 5 6-K 7-M 8-A 8-K 8-M 9-M ABS DD-15E ABS-15G ABS-EE ADV ADV-E ADV-H ADV-NR ADV-W ATS ATS-R BD BD-N BDW C CA-1 CB CFPORTAL D F-1 F-10 F-3 F-4 F-6 F-7 F-8 F-80 F-N F-X ID MA MA-I MA-NR MA-W MSD MSDW n/a N-14 N-17D-1 N-17f-1 N-17f-2 N-18f-1 N-1A N-2 N-23c-3 N-27D-1 N-3 N-4 N-5 N-54A N-54C N-6 N-6EI-1 N-6F N-8A N-8B-2 N-8B-4 N-8F N-CR N-CSR N-MFP N-PX N-Q NRSRO N-SAR PF PILOT R31 S-1 S-11 S-20 S-3 S-4 S-6 S-8 SBSE SBSE-A SBSE-BD SBSE-C SBSE-W SCI SD SDR SE SF-1 SF-3 SIP T-1 T-2 T-3 T-4 T-6 TA-1 TA-2 TA-W TCR TH WB-APP X-17A-19 X-17A-5 Part I X-17A-5 Part II X-17A-5 Part IIA X-17A-5 Part IIB X-17A-5 Part III X-17A-5 Schedule I X-17F-1A Filing Types Include Ownership Filings Exclude Ownership Filings Only Show Ownership FIlings Ownership Filings Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame * Start Date * End Date Export to Excel DateFilerForm TypeView03/14/20258:00 AMGT Biopharma (Filer)Form 424B303/13/202511:15 PMGT Biopharma (Filer)Form EFFECT03/07/20254:29 PMGT Biopharma (Filer)Form DNotice of Exempt Offering of Securities 03/06/20254:20 PMGT Biopharma (Filer)Form S-3Registration statement under Securities Act of 1933 02/26/20254:07 PMGT Biopharma (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 02/24/20257:00 AMGT Biopharma (Filer)Form RW02/21/20254:01 PMGT Biopharma (Filer)Form 10-KAnnual report pursuant to Section 13 or 15(d) 02/07/20258:32 AMGT Biopharma (Filer)Form S-1/A01/27/20257:31 AMGT Biopharma (Filer)Form S-1/A01/27/20256:00 AMGT Biopharma (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 12/23/20244:23 PMGT Biopharma (Filer)Form S-1Registration statement under Securities Act of 1933 Get the Latest News and Ratings for GTBP and Related StocksEnter your email address below to receive the latest news and analysts' ratings for GT Biopharma and its competitors with MarketBeat's FREE daily newsletter. 11/27/20243:05 PMGT Biopharma (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 11/21/20248:25 AMGT Biopharma (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 10/21/20248:13 PMGT Biopharma (Issuer)URBAN ALAN LOUIS (Reporting)Form 4Statement of changes in beneficial ownership of securities 10/17/202410:15 AMCYTOVANCE BIOLOGICS INC (Filed by)GT Biopharma (Subject)Form SCHEDULE 13G/A07/02/20243:50 PMGT Biopharma (Filer)Form 424B306/30/202411:15 PMGT Biopharma (Filer)Form EFFECT06/27/202410:17 AMGT Biopharma (Filer)Form S-1/A06/27/20248:34 AMGT Biopharma (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 06/26/20243:17 PMGT Biopharma (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 06/18/20248:36 PMGT Biopharma (Filer)Form S-1Registration statement under Securities Act of 1933 06/17/20243:26 PMGT Biopharma (Filer)Form DEFA14A06/07/20244:25 PMGT Biopharma (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 05/23/20247:31 PMBRISTOL INVESTMENT FUND LTD (Filed by)GT Biopharma (Subject)Form SC 13G/A05/23/20245:04 AMGT Biopharma (Filer)Form 424B505/23/20245:02 AMGT Biopharma (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 05/15/20244:00 PMGT Biopharma (Filer)Form 10-QGeneral form for quarterly reports under Section 13 or 15(d) 04/30/20242:26 PMGT Biopharma (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) (Data available from 1/1/2016 forward) Remove Ads Related Companies and Tools Related Companies CDIO 10K Form PASG 10K Form PMN 10K Form RNXT 10K Form CARA 10K Form GRCE 10K Form CLDI 10K Form ALLK 10K Form FNCH 10K Form JATT 10K Form SEC Filings Tools Latest SEC FilingsInsider Trading Activity This page (NASDAQ:GTBP) was last updated on 3/28/2025 by MarketBeat.com Staff From Our PartnersA $6.9 Trillion Cash Tsunami Is Coming – Move Your Money NOWExpert: "Prepare For the Mother of All Melt-Ups" In the wake of Wall Street volatility, stock-picking legen...Stansberry Research | SponsoredElon Warns: Exec Order 14024 Targets DollarExecutive Order 14024 is paving the way for irreversible damage to the dollar's value—threatening your wealth,...Priority Gold | SponsoredWarning: “DOGE Collapse” imminentElon Strikes Back You may already sense that the tide is turning against Elon Musk and DOGE. 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