{"cik":"0001729635","entityType":"other","sic":"","sicDescription":"","ownerOrg":"","insiderTransactionForOwnerExists":1,"insiderTransactionForIssuerExists":0,"name":"Perestroika","tickers":[],"exchanges":[],"ein":null,"lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":"1231","stateOfIncorporation":"V8","stateOfIncorporationDescription":"Switzerland","addresses":{"mailing":{"street1":"TRANSOCEAN LTD, TURMSTRASSE 30","street2":null,"city":"STEINHAUSEN","stateOrCountry":null,"zipCode":"6312","stateOrCountryDescription":null,"isForeignLocation":1,"foreignStateTerritory":null,"country":"Switzerland","countryCode":"V8"},"business":{"street1":"TRANSOCEAN LTD, TURMSTRASSE 30","street2":null,"city":"STEINHAUSEN","stateOrCountry":null,"zipCode":"6312","stateOrCountryDescription":null,"isForeignLocation":1,"foreignStateTerritory":null,"country":"Switzerland","countryCode":"V8"}},"phone":"0041417490500","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001729635-25-000007","0001729635-25-000005","0001415889-24-023388","0001415889-24-020698","0001415889-24-013589","0001415889-24-005890","0001415889-23-013425","0001415889-23-006857","0001415889-23-006853","0001104659-22-128243","0001415889-22-005147","0001104659-22-062018","0001179110-21-007071","0001179110-21-007052","0001104659-21-085163","0001179110-21-006985","0001179110-21-006918","0001179110-21-006837","0001104659-20-096542","0001179110-20-009133","0001558370-18-007344","0001179110-18-009337","0001104659-18-043836","0001104659-18-040517","0001179110-18-008630","0001179110-18-003454","0001104659-18-006546","0001179110-18-001364","0001179110-18-001357"],"filingDate":["2025-11-25","2025-09-30","2024-09-13","2024-08-05","2024-05-17","2024-02-29","2023-09-19","2023-04-25","2023-04-25","2022-12-19","2022-05-17","2022-05-17","2021-06-28","2021-06-25","2021-06-24","2021-06-23","2021-06-21","2021-06-17","2020-08-18","2020-08-18","2018-09-04","2018-07-03","2018-07-03","2018-06-18","2018-06-15","2018-03-05","2018-02-05","2018-02-01","2018-02-01"],"reportDate":["2025-11-24","2025-09-26","2024-09-12","2024-08-02","2024-05-15","2024-02-27","2023-09-15","2023-04-21","2022-05-13","","2022-05-13","","2021-06-25","2021-06-23","","2021-06-21","2021-06-17","2021-06-15","","2020-08-14","","2018-07-03","","","2018-06-15","2018-03-01","","2018-01-30","2018-01-30"],"acceptanceDateTime":["2025-11-25T22:31:08.000Z","2025-10-01T01:42:49.000Z","2024-09-13T21:19:51.000Z","2024-08-05T10:32:15.000Z","2024-05-17T21:43:41.000Z","2024-02-29T21:30:00.000Z","2023-09-19T21:20:40.000Z","2023-04-25T23:04:19.000Z","2023-04-25T23:00:18.000Z","2022-12-19T21:15:40.000Z","2022-05-17T21:10:45.000Z","2022-05-17T20:56:55.000Z","2021-06-28T20:24:00.000Z","2021-06-25T21:28:00.000Z","2021-06-24T20:58:40.000Z","2021-06-23T21:04:33.000Z","2021-06-21T20:50:08.000Z","2021-06-17T22:31:07.000Z","2020-08-18T20:23:06.000Z","2020-08-18T20:16:54.000Z","2018-09-04T20:33:00.000Z","2018-07-03T20:23:01.000Z","2018-07-03T20:09:13.000Z","2018-06-15T22:18:45.000Z","2018-06-15T20:51:43.000Z","2018-03-05T21:52:15.000Z","2018-02-05T22:23:59.000Z","2018-02-01T22:32:44.000Z","2018-02-01T22:30:31.000Z"],"act":["34","34","34","34","34","34","34","34","34","","34","","34","34","","34","34","34","","34","","34","","","34","34","","34","34"],"form":["4","4","4","4","4","4","4","4","4/A","SC 13D/A","4","SC 13D/A","4","4","SC 13D/A","4","4","4","SC 13D/A","4","SC 13D/A","4","SC 13D/A","SC 13D/A","4","4","SC 13D","3","4"],"fileNumber":["001-38373","001-38373","001-38373","001-38373","001-38373","001-38373","001-38373","001-38373","001-38373","","001-38373","","001-38373","001-38373","","001-38373","001-38373","001-38373","","001-38373","","001-38373","","","001-38373","001-38373","","001-38373","001-38373"],"filmNumber":["251522778","251362286","241298670","241173059","24961606","24704207","231264711","23846379","23846352","","22935726","","211053713","211049114","","211039352","211031437","211026322","","201113865","","18937633","","","18902769","18666849","","18567876","18567854"],"items":["","","","","","","","","","","","","","","","","","","","","","","","","","","","",""],"core_type":["4","4","4","4","4","4","4","4","4/A","SC 13D/A","4","SC 13D/A","4","4","SC 13D/A","4","4","4","SC 13D/A","4","SC 13D/A","4","SC 13D/A","SC 13D/A","4","4","SC 13D","3","4"],"size":[5536,5945,5444,5428,5427,5427,5780,8927,7094,66152,5750,73980,5679,7345,68072,7345,7345,7331,59874,10389,233745,4815,96962,141490,7588,6038,122599,10198,8309],"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":[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,null,null,null,null],"primaryDocument":["xslF345X05/form4-11252025_101104.xml","xslF345X05/form4-10012025_011046.xml","xslF345X05/form4-09132024_090948.xml","xslF345X05/form4-08052024_100811.xml","xslF345X05/form4-05172024_090536.xml","xslF345X05/form4-02292024_090242.xml","xslF345X05/form4-09192023_090933.xml","xslF345X04/form4-04252023_110414.xml","xslF345X04/form4a-04252023_110408.xml","tm2233010d1_sc13da.htm","xslF345X03/form4-05172022_020522.xml","tm2215860d1_sc13da.htm","xslF345X03/edgar.xml","xslF345X03/edgar.xml","tm2120534d1_sc13da.htm","xslF345X03/edgar.xml","xslF345X03/edgar.xml","xslF345X03/edgar.xml","tm2026991-1_sc13d.htm","xslF345X03/edgar.xml","sc13da.htm","xslF345X03/edgar.xml","a18-16390_1sc13da.htm","a18-15520_1sc13da.htm","xslF345X03/edgar.xml","xslF345X03/edgar.xml","a18-5104_1sc13d.htm","xslF345X02/edgar.xml","xslF345X03/edgar.xml"],"primaryDocDescription":["","","","","","","","","","SC 13D/A","","SC 13D/A","FORM 4 -","FORM 4 -","SC 13D/A","FORM 4 -","FORM 4 -","FORM 4 -","SCHEDULE 13D","FORM 4 -","SC 13D/A","FORM 4 -","SC 13D/A","SC 13D/A","FORM 4 -","FORM 4 -","SC 13D","FORM 3 -","FORM 4 -"]},"files":[]}}