Tantech (TANH) SEC Filings & 10K Form $2.38 +0.04 (+1.71%) Closing price 03/25/2025 04:00 PM EasternExtended Trading$2.40 +0.02 (+0.88%) As of 08:38 AM 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 AnalysisChartCompetitorsFinancialsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Recent Tantech 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 TypeView03/03/20257:30 AMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 01/08/20257:55 AMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 01/06/20257:55 AMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 12/31/20248:33 PMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 12/27/20247:35 AMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 12/20/20243:30 PMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 12/16/20248:05 AMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 11/13/202410:17 AMINTRACOASTAL CAPITAL, LLC (Filed by)Tantech (Subject)Form SC 13G/A09/10/20244:00 PMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 08/28/20244:05 PMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 07/29/20247:50 AMTantech (Filer)Form 6-K/A07/25/202411:15 PMTantech (Filer)Form EFFECT07/22/20244:11 PMTantech (Filer)Form F-1/A07/12/20243:31 PMTantech (Filer)Form F-1Registration statement for securities of certain foreign private issuers 06/17/20247:30 AMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 06/11/20243:30 PMTantech (Filer)Form 20-FRegistration statement / Annual report / Transition report 05/08/20244:16 PMINTRACOASTAL CAPITAL, LLC (Filed by)Tantech (Subject)Form SC 13G05/01/20248:29 AMTantech (Filer)Form NT 20-F04/25/20248:45 PMTantech (Filer)Form 6-KReport of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 (Data available from 1/1/2016 forward) Remove Ads Related Companies and Tools Related Companies GAMCW 10Q Form LNZAW 10Q Form ORGNW 10Q Form PCTTW 10Q Form PCTTU 10Q Form NTR 10Q Form ICL 10Q Form AXTA 10Q Form ALTM 10Q Form CSWI 10Q Form SEC Filings Tools Latest SEC FilingsInsider Trading Activity This page (NASDAQ:TANH) was last updated on 3/26/2025 by MarketBeat.com Staff From Our PartnersTrump’s Final Plan Presidential insider exposes shocking plot to reshape U.S. economy: The 2025 Trump Reset -- Inside Trump’...Porter & Company | SponsoredDOGE could send 6 AI stocks through the roofStay alert for Elon Musk and the Department of Government Efficiency's next move … Expect an announcement f...Weiss Ratings | SponsoredNew “Trump” currency proposed in DCAccording to one of the most connected men in Washington… A surprising new bill was just introduced in Wash...Paradigm Press | SponsoredTrump’s Secret WeaponHave you looked at the stock market recently? 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