{"cik":"0002086716","entityType":"other","sic":"2810","sicDescription":"Industrial Inorganic Chemicals","ownerOrg":"08 Industrial Applications and Services","insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":1,"name":"Standard Nuclear, Inc.","tickers":["STDN"],"exchanges":["NYSE"],"ein":"993989746","lei":null,"description":"","website":"","investorWebsite":"","category":"
Emerging growth company","fiscalYearEnd":"1231","stateOfIncorporation":"DE","stateOfIncorporationDescription":"DE","addresses":{"mailing":{"street1":"200 EUROPIA AVE","street2":null,"city":"OAK RIDGE","stateOrCountry":"TN","zipCode":"37830","stateOrCountryDescription":"TN","isForeignLocation":0,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"200 EUROPIA AVE","street2":null,"city":"OAK RIDGE","stateOrCountry":"TN","zipCode":"37830","stateOrCountryDescription":"TN","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":"8652722324","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001628280-26-058139","0001628280-26-056939","0001628280-26-056937","0001628280-26-056936","0002084264-26-000006","0002084264-26-000005","0001193125-26-314667","0002041625-26-000004","0002041625-26-000003","0001213900-26-080554","0001213900-26-080552","0001628280-26-049241","0002084264-26-000004","0001628280-26-049125","0002084264-26-000003","0001628280-26-048932","0001628280-26-048742","0001628280-26-048740","0001628280-26-048739","0001628280-26-048738","0001628280-26-048737","0001628280-26-048735","0001628280-26-048734","0001628280-26-048733","0001193125-26-307790","0001213900-26-078747","0002084264-26-000002","0001213900-26-078470","9999999995-26-002312","0001193125-26-305178","0001628280-26-048363","0001628280-26-048362","0001628280-26-048361","0001628280-26-048360","0001628280-26-048359","0001628280-26-048358","0001628280-26-048357","0001628280-26-048356","0000876661-26-000620","0001213900-26-078152","0001213900-26-078128","0001213900-26-075742","0001213900-26-070215","0001213900-26-064221","0001213900-26-051869","0001213900-26-042144","0001213900-26-016600","0002086716-26-000003","0002086716-26-000002","0002086716-26-000001"],"filingDate":["2026-08-20","2026-08-14","2026-08-14","2026-08-14","2026-07-30","2026-07-30","2026-07-23","2026-07-23","2026-07-23","2026-07-22","2026-07-22","2026-07-22","2026-07-22","2026-07-22","2026-07-21","2026-07-21","2026-07-17","2026-07-17","2026-07-17","2026-07-17","2026-07-17","2026-07-17","2026-07-17","2026-07-17","2026-07-17","2026-07-16","2026-07-16","2026-07-16","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-07","2026-06-18","2026-06-02","2026-05-05","2026-04-10","2026-02-13","2026-02-09","2026-02-09","2026-02-09"],"reportDate":["2026-08-20","2026-08-12","2026-08-12","2026-08-12","2026-07-17","2026-07-15","","2026-07-17","2026-07-15","2026-07-17","2026-07-15","2026-07-20","2026-07-17","2026-07-22","2026-07-17","2026-07-17","2026-07-15","2026-07-15","2026-07-15","2026-07-17","2026-07-15","2026-07-17","2026-07-15","2026-07-15","2026-07-16","","2026-07-15","","","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","2026-07-15","","","","","","","","","","","",""],"acceptanceDateTime":["2026-08-20T12:31:15.000Z","2026-08-14T12:04:16.000Z","2026-08-14T12:03:21.000Z","2026-08-14T12:02:32.000Z","2026-07-31T01:28:21.000Z","2026-07-30T21:06:23.000Z","2026-07-23T22:41:09.000Z","2026-07-23T20:56:22.000Z","2026-07-23T20:23:28.000Z","2026-07-23T00:58:58.000Z","2026-07-23T00:57:52.000Z","2026-07-22T21:39:22.000Z","2026-07-22T15:50:06.000Z","2026-07-22T13:40:34.000Z","2026-07-21T14:09:54.000Z","2026-07-21T13:12:46.000Z","2026-07-18T01:14:51.000Z","2026-07-18T01:13:51.000Z","2026-07-18T01:13:19.000Z","2026-07-18T01:12:38.000Z","2026-07-18T01:12:13.000Z","2026-07-18T00:59:43.000Z","2026-07-18T00:58:58.000Z","2026-07-18T00:58:21.000Z","2026-07-17T20:05:03.000Z","2026-07-16T20:42:45.000Z","2026-07-16T16:50:02.000Z","2026-07-16T01:36:31.000Z","2026-07-16T04:15:18.000Z","2026-07-16T00:52:33.000Z","2026-07-15T22:10:39.000Z","2026-07-15T22:07:17.000Z","2026-07-15T22:03:44.000Z","2026-07-15T22:02:48.000Z","2026-07-15T22:01:57.000Z","2026-07-15T22:01:07.000Z","2026-07-15T21:59:57.000Z","2026-07-15T21:58:25.000Z","2026-07-15T13:38:26.000Z","2026-07-15T13:16:15.000Z","2026-07-15T11:00:05.000Z","2026-07-07T11:23:24.000Z","2026-06-18T21:16:34.000Z","2026-06-02T20:44:46.000Z","2026-05-05T01:53:38.000Z","2026-04-10T01:42:02.000Z","2026-02-13T22:23:02.000Z","2026-02-09T21:26:31.000Z","2026-02-09T21:16:10.000Z","2026-02-09T18:11:47.000Z"],"act":["34","","","34","","","34","","","","","","","34","","34","","","","","","","","","","33","","33","33","","","","","","","","","","34","34","33","33","33","33","33","33","33","33","33","33"],"form":["8-K","4","3","8-K","4","3","SCHEDULE 13G","4","3","4","3","4","4/A","8-K","4","8-K","4","4","4","4","4","4","4","4","4","424B4","3","S-8","EFFECT","3","3","3","3","3","3","3","3","3","CERT","8-A12B","S-1/A","S-1/A","S-1","DRS/A","DRS/A","DRS/A","DRS","D","D","D"],"fileNumber":["001-43400","","","001-43400","","","005-95815","","","","","","","001-43400","","001-43400","","","","","","","","","","333-296922","","333-297493","333-296922","","","","","","","","","","001-43400","001-43400","333-296922","333-296922","333-296922","377-09069","377-09069","377-09069","377-09069","021-573015","021-573013","021-572956"],"filmNumber":["261297506","","","261276259","","","261198118","","","","","","","261192084","","261188445","","","","","","","","","","261180848","","261178547","261178583","","","","","","","","","","261176188","261176119","261175845","261157816","261104044","261056958","26940112","26852993","26634690","26611830","26611634","26610671"],"items":["8.01,9.01","","","5.02,9.01","","","","","","","","","","8.01,9.01","","5.03,9.01","","","","","","","","","","","","",",,","","","","","","","","","","","","","","","","","","","06b","06b","06b"],"core_type":["XBRL","4","3","XBRL","4","3","SCHEDULE 13G","4","3","4","3","4","4/A","XBRL","4","XBRL","4","4","4","4","4","4","4","4","4","424B4","3","S-8","EFFECT","3","3","3","3","3","3","3","3","3","CERT","8-A12B","S-1/A","S-1/A","S-1","DRS/A","DRS/A","DRS/A","DRS","D","D","D"],"size":[188738,5069,317200,190686,24524,15997,53227,8649,5933,11842,8022,22653,14746,1821949,19519,17639547,6706,5029,5044,4891,6779,16140,10094,6687,33269,10676304,10778,245233,1724,15569,312418,318135,322357,315499,316807,311585,315400,318540,154265,16317,10920719,15152757,11879933,10941093,11533695,9856205,5580430,9854,9991,9860],"isXBRL":[1,0,0,1,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0],"isInlineXBRL":[1,0,0,1,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0],"isXBRLNumeric":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,null,null,null],"primaryDocument":["stdn-20260820.htm","xslF345X06/wk-form4_1786709053.xml","xslF345X06/wk-form3_1786708997.xml","stdn-20260812.htm","xslF345X06/primary_doc.xml","xslF345X06/primary_doc.xml","xslSCHEDULE_13G_X02/primary_doc.xml","xslF345X06/primary_doc.xml","xslF345X06/primary_doc.xml","xslF345X06/ownership.xml","xslF345X06/ownership.xml","xslF345X06/wk-form4_1784756360.xml","xslF345X06/primary_doc.xml","stdn-20260722.htm","xslF345X06/primary_doc.xml","stdn-20260717.htm","xslF345X06/wk-form4_1784337288.xml","xslF345X06/wk-form4_1784337228.xml","xslF345X06/wk-form4_1784337197.xml","xslF345X06/wk-form4_1784337155.xml","xslF345X06/wk-form4_1784337130.xml","xslF345X06/wk-form4_1784336380.xml","xslF345X06/wk-form4_1784336335.xml","xslF345X06/wk-form4_1784336298.xml","xslF345X06/ownership.xml","ea0276071-13.htm","xslF345X06/primary_doc.xml","ea0298088-s8_standard.htm","xslEFFECTX01/primary_doc.xml","xslF345X06/ownership.xml","xslF345X06/wk-form3_1784153436.xml","xslF345X06/wk-form3_1784153234.xml","xslF345X06/wk-form3_1784153020.xml","xslF345X06/wk-form3_1784152964.xml","xslF345X06/wk-form3_1784152914.xml","xslF345X06/wk-form3_1784152863.xml","xslF345X06/wk-form3_1784152794.xml","xslF345X06/wk-form3_1784152702.xml","STDN071526.pdf","ea0297929-8a12b_standard.htm","ea0276071-12.htm","ea0276071-11.htm","ea0276071-09.htm","filename1.htm","filename1.htm","filename1.htm","filename1.htm","xslFormDX01/primary_doc.xml","xslFormDX01/primary_doc.xml","xslFormDX01/primary_doc.xml"],"primaryDocDescription":["8-K","FORM 4","FORM 3","8-K","PRIMARY DOCUMENT","PRIMARY DOCUMENT","","PRIMARY DOCUMENT","PRIMARY DOCUMENT","","","FORM 4","PRIMARY DOCUMENT","8-K","PRIMARY DOCUMENT","8-K","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","4","PROSPECTUS","PRIMARY DOCUMENT","REGISTRATION STATEMENT","","3","FORM 3","FORM 3","FORM 3","FORM 3","FORM 3","FORM 3","FORM 3","FORM 3","NYSE CERTIFICATION","FOR REGISTRATION OF CERTAIN CLASSES","REGISTRATION STATEMENT","REGISTRATION STATEMENT","REGISTRATION STATEMENT","","","","","","",""]},"files":[]}}