{"cik":"0001958946","entityType":"other","sic":"5990","sicDescription":"Retail-Retail Stores, NEC","ownerOrg":"07 Trade & Services","insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":0,"name":"Masterworks 228, LLC","tickers":[],"exchanges":[],"ein":"921269398","lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":"1231","stateOfIncorporation":"DE","stateOfIncorporationDescription":"DE","addresses":{"mailing":{"street1":"1 WORLD TRADE CENTER","street2":"57TH FLOOR","city":"NEW YORK","stateOrCountry":"NY","zipCode":"10007","stateOrCountryDescription":"NY","isForeignLocation":0,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"1 WORLD TRADE CENTER","street2":"57TH FLOOR","city":"NEW YORK","stateOrCountry":"NY","zipCode":"10007","stateOrCountryDescription":"NY","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":"2035185172","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001493152-26-030911","0001493152-26-026165","0001493152-26-020438","0001493152-26-017637","0001493152-26-001713","0001493152-25-023049","0001493152-25-015531","0001641172-25-019370","0001641172-25-007562","0001641172-25-004143","0001493152-25-000643","0001493152-24-051714","0001493152-24-040144","0001493152-24-037469","0001493152-24-027687","0001493152-24-016694","0001493152-24-000748","0001493152-23-036163","0001493152-23-034330","0001493152-23-031297","0001493152-23-028880","0001493152-23-014593","0001493152-23-009261","0001493152-23-009258","0001493152-23-008513","9999999994-23-000123","0001493152-23-007707","0000000000-23-002532","0001493152-23-007020"],"filingDate":["2026-06-29","2026-05-29","2026-04-30","2026-04-17","2026-01-12","2025-11-14","2025-09-26","2025-07-14","2025-04-30","2025-04-14","2025-01-06","2024-12-23","2024-10-07","2024-09-20","2024-07-15","2024-04-26","2024-01-04","2023-10-05","2023-09-27","2023-08-31","2023-08-15","2023-04-28","2023-03-28","2023-03-28","2023-03-22","2023-03-20","2023-03-15","2023-03-15","2023-03-08"],"reportDate":["","2026-05-29","2025-12-31","2026-04-17","2026-01-12","2025-11-14","2025-06-30","2025-07-14","2024-12-31","2025-04-14","2025-01-06","2024-12-23","2024-10-07","2024-06-30","2024-07-15","2023-12-31","2024-01-04","2023-10-05","2023-06-30","2023-08-31","2023-08-15","2022-12-31","2023-03-28","2023-03-28","","","","",""],"acceptanceDateTime":["2026-06-29T16:57:53.000Z","2026-05-29T14:35:01.000Z","2026-04-30T20:06:35.000Z","2026-04-17T15:47:58.000Z","2026-01-12T20:16:47.000Z","2025-11-14T15:42:50.000Z","2025-09-26T15:48:23.000Z","2025-07-14T18:41:42.000Z","2025-04-30T19:32:20.000Z","2025-04-14T17:24:54.000Z","2025-01-06T17:34:51.000Z","2024-12-23T20:09:32.000Z","2024-10-07T18:48:11.000Z","2024-09-20T17:10:38.000Z","2024-07-15T16:25:33.000Z","2024-04-26T20:59:08.000Z","2024-01-04T15:29:23.000Z","2023-10-05T16:23:05.000Z","2023-09-27T15:31:00.000Z","2023-08-31T21:23:30.000Z","2023-08-15T14:52:58.000Z","2023-04-28T17:17:08.000Z","2023-03-28T18:43:44.000Z","2023-03-28T18:42:11.000Z","2023-03-22T19:10:48.000Z","2023-03-21T04:15:24.000Z","2023-03-15T18:21:32.000Z","2023-03-15T17:30:08.000Z","2023-03-08T22:19:42.000Z"],"act":["33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","33","","","33"],"form":["1-Z","1-U","1-K","1-U","1-U","1-U","1-SA","1-U","1-K","1-U","1-U","1-U","1-U","1-SA","1-U","1-K","1-U","1-U","1-SA","1-U","1-U","1-K","1-U","1-U","253G2","QUALIF","CORRESP","UPLOAD","1-A"],"fileNumber":["24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","24R-00795","024-12179","024-12179","","","024-12179"],"filmNumber":["261133876","261040371","26925125","26870450","26526384","251482539","251347606","251121381","25894476","25835210","25509911","241572877","241357493","241312684","241116568","24884909","24510202","231310576","231283196","231229702","231173728","23863420","23768747","23768727","23752740","23747758","","","23717141"],"items":["","9.1","","9.1","9.1","9.1","","9.1","","9.1","9.1","9.1","9.1","","9.1","","9.1","9.1","","9.1","9.1","","9.1","9.1","","","","",""],"core_type":["1-Z","1-U","1-K","1-U","1-U","1-U","1-SA","1-U","1-K","1-U","1-U","1-U","1-U","1-SA","1-U","1-K","1-U","1-U","1-SA","1-U","1-U","1-K","1-U","1-U","253G2","QUALIF","CORRESP","LETTER","1-A"],"size":[2727,22600,318233,31248,31143,31375,200501,31555,301562,32531,25470,25565,31437,359462,29991,359981,811994,24274,235545,24980,25313,189592,7137707,1017317,1506584,1699,19932,40997,13279863],"isXBRL":[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],"isInlineXBRL":[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],"isXBRLNumeric":[0,0,0,0,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],"primaryDocument":["xsl1-Z_X01/primary_doc.xml","form1-u.htm","xsl1-K_X01/primary_doc.xml","form1-u.htm","form1-u.htm","form1-u.htm","form1-sa.htm","form1-u.htm","xsl1-K_X01/primary_doc.xml","form1-u.htm","form1-u.htm","form1-u.htm","form1-u.htm","form1-sa.htm","form1-u.htm","xsl1-K_X01/primary_doc.xml","form1-u.htm","form1-u.htm","form1-sa.htm","form1-u.htm","form1u.htm","xsl1-K_X01/primary_doc.xml","form1-u.htm","form1-u.htm","form253g2.htm","xslQUALIFX01/primary_doc.xml","filename1.htm","filename1.pdf","xsl1-A_X01/primary_doc.xml"],"primaryDocDescription":["","1-U","","1-U","1-U","1-U","1-SA","1-U","","","","","","","","","","","","","","","","","","","","",""]},"files":[]}}