Enzon Pharmaceuticals (ENZN) SEC Filings & 10K Form $0.09 +0.00 (+2.27%) As of 08/29/2025 03:05 PM Eastern Add Compare Share Share SEC Filings Stock AnalysisChartEarningsSEC FilingsShort InterestBuy This Stock Recent Enzon Pharmaceuticals 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 TypeView06/23/20257:19 AMEnzon Pharmaceuticals (Subject)ICAHN CARL C (Filed by)Form SCHEDULE 13D/A06/23/20255:07 AMEnzon Pharmaceuticals (Subject)Form 42506/23/20255:06 AMEnzon Pharmaceuticals (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 04/01/20253:37 PMEnzon Pharmaceuticals (Filer)Form 8-A12G/A04/01/20253:30 PMEnzon Pharmaceuticals (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 12/27/20243:30 PMEnzon Pharmaceuticals (Filer)Form 8-KCurrent report pursuant to Section 13 or 15(d) 11/05/20243:05 PMEnzon Pharmaceuticals (Filer)Form 10-QGeneral form for quarterly reports under Section 13 or 15(d) (Data available from 1/1/2016 forward) Related Companies and Tools Related Companies SABS SEC Filings CRIS SEC Filings AMGN SEC Filings GILD SEC Filings VRTX SEC Filings REGN SEC Filings ALNY SEC Filings BIIB SEC Filings INCY SEC Filings UTHR SEC Filings SEC Filings Tools Latest SEC FilingsInsider Trading Activity This page (OTCMKTS:ENZN) was last updated on 8/30/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredElon’s Secret Social Security BombshellTo All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social S...Banyan Hill Publishing | SponsoredEveryone’s watching Nvidia right now. 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