Hudson Technologies (HDSN) SEC Filings & 10K Form $10.21 +0.11 (+1.09%) Closing price 09/18/2025 04:00 PM EasternExtended Trading$10.21 0.00 (0.00%) As of 09/18/2025 04:10 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 ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Recent Hudson Technologies 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 TypeView08/01/20253:00 PMHudson Technologies (Filer)Form 10-QGeneral form for quarterly reports under Section 13 or 15(d) 08/01/20258:42 AMHudson Technologies (Issuer)Prouty Eric A (Reporting)Form 4Statement of changes in beneficial ownership of securities 06/24/20251:17 PMHudson Technologies (Subject)WESTERLY CAPITAL MANAGEMENT, LLC (Filed by)Form SCHEDULE 13G06/23/20253:06 PMHudson Technologies (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 06/20/20259:54 AMHudson Technologies (Issuer)Prouty Eric A (Reporting)Form 4Statement of changes in beneficial ownership of securities 06/20/20259:56 AMHudson Technologies (Issuer)Parrillo Richard (Reporting)Form 4Statement of changes in beneficial ownership of securities 06/20/20259:56 AMABBATECOLA VINCENT P (Reporting)Hudson Technologies (Issuer)Form 4Statement of changes in beneficial ownership of securities 06/20/20259:56 AMHudson Technologies (Issuer)Mansy Loan Nguyen (Reporting)Form 4Statement of changes in beneficial ownership of securities 06/20/20259:57 AMBulgarino Nicole E (Reporting)Hudson Technologies (Issuer)Form 4Statement of changes in beneficial ownership of securities 05/14/20256:47 PMHartree Partners, LP (Filed by)Hudson Technologies (Subject)Form SCHEDULE 13G/A04/25/20258:00 AMHudson Technologies (Filer)Form DEF 14A04/25/20258:05 AMHudson Technologies (Filer)Form DEFA14A04/25/20258:08 AMHudson Technologies (Filer)Form ARS03/12/20254:18 PMHartree Partners, LP (Filed by)Hudson Technologies (Subject)Form SCHEDULE 13G11/08/20243:15 PMHudson Technologies (Filer)Form 10-QGeneral form for quarterly reports under Section 13 or 15(d) 11/04/20243:15 PMHudson Technologies (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 11/04/202410:57 AMHudson Technologies (Subject)VANGUARD GROUP INC (Filed by)Form SC 13G/A10/25/20248:00 AMHudson Technologies (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) (Data available from 1/1/2016 forward) Related Companies and Tools Related Companies GLP 10K Form DSGR 10K Form WKC 10K Form GIC 10K Form CAPL 10K Form STKL 10K Form RYI 10K Form ITRN 10K Form MGPI 10K Form VSTS 10K Form SEC Filings Tools Latest SEC FilingsInsider Trading Activity This page (NASDAQ:HDSN) was last updated on 9/19/2025 by MarketBeat.com Staff From Our PartnersTrump’s national nightmare is herePorter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...Porter & Company | SponsoredHe Called Nvidia at $1.10. 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