{"cik":"0001825376","entityType":"other","sic":"","sicDescription":"","ownerOrg":"","insiderTransactionForOwnerExists":1,"insiderTransactionForIssuerExists":0,"name":"RA Capital Nexus Fund II, L.P.","tickers":[],"exchanges":[],"ein":null,"lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":"1231","stateOfIncorporation":"DE","stateOfIncorporationDescription":"DE","addresses":{"mailing":{"street1":"200 BERKELEY STREET, 18TH FLOOR","street2":null,"city":"BOSTON","stateOrCountry":"MA","zipCode":"02116","stateOrCountryDescription":"MA","isForeignLocation":0,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"200 BERKELEY STREET, 18TH FLOOR","street2":null,"city":"BOSTON","stateOrCountry":"MA","zipCode":"02116","stateOrCountryDescription":"MA","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":"617-778-2500","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001231919-26-001416","0001231919-26-000783","0001231919-26-000722","0001231919-26-000704","0001231919-26-000686","0001231919-26-000684","0001231919-26-000640","0001231919-26-000631","0001231919-26-000610","0001231919-26-000604","0001231919-26-000517","0001231919-26-000457","0001231919-26-000435","0001231919-26-000429","0001231919-26-000396","0001231919-26-000262","0001231919-26-000018","0001231919-25-000616","0001231919-25-000265","0001415889-25-018406","0001415889-25-017627","0001415889-25-017318","0001415889-25-016757","0001415889-25-015881","0001415889-25-015836","0001415889-25-015766","0001415889-25-012942","0001415889-25-007443","0001415889-24-025502","0001178937-24-000044","0001415889-24-021199","0001415889-24-018708","0001415889-24-018483","0001415889-24-018452","0001415889-24-018035","0001415889-24-018030","0001415889-24-017817","0001415889-24-016256","0001415889-24-014591","0001415889-24-010809","0001415889-24-010278","0001415889-24-009276","0001415889-24-009268","0001415889-24-009077","0001415889-24-009075","0001415889-24-007006","0001415889-24-004509","0001209191-24-003175","0001104659-23-103529","0001104659-23-097327","0001104659-23-094274","0001104659-23-089351","0001104659-23-083857","0001104659-23-083069","0001104659-23-075962","0001104659-23-072338","0001104659-23-070813","0001104659-23-063233","0001104659-23-039250","0001104659-23-037172","0001104659-22-120780","0001104659-22-119645","0001104659-22-117290","0001104659-22-117238","0001104659-22-116650","0001104659-22-110000","0001104659-22-086686","0001104659-22-083728","0001104659-22-073920","0001104659-22-072982","0001104659-22-071465","0001104659-22-071026","0001104659-22-069399","0001104659-22-067196","0001104659-22-059645","0001104659-22-059634","0001104659-22-058268","0001104659-22-056637","0001104659-22-041080","0001104659-22-040146","0001104659-22-037672","0001104659-22-034568","0001104659-22-032990","0001104659-22-031596","0001104659-22-029417","0001104659-22-027432","0001104659-22-025736","0001104659-22-024375","0001104659-21-117369","0001104659-21-115603","0001104659-21-106405","0001104659-21-103596","0001104659-21-102320","0001104659-21-100106","0001104659-21-097601","0001104659-21-097148","0001104659-21-095093","0001104659-21-090244","0001104659-21-087732","0001012975-20-000734"],"filingDate":["2026-09-30","2026-07-22","2026-07-01","2026-06-26","2026-06-22","2026-06-22","2026-06-15","2026-06-12","2026-06-08","2026-06-05","2026-05-20","2026-05-06","2026-04-30","2026-04-29","2026-04-23","2026-03-18","2026-01-07","2025-12-15","2025-09-30","2025-06-27","2025-06-17","2025-06-13","2025-06-11","2025-06-06","2025-06-05","2025-06-05","2025-05-14","2025-03-07","2024-10-22","2024-08-15","2024-08-13","2024-07-01","2024-06-28","2024-06-28","2024-06-24","2024-06-24","2024-06-21","2024-06-10","2024-05-24","2024-04-15","2024-04-04","2024-03-27","2024-03-27","2024-03-25","2024-03-25","2024-03-06","2024-02-20","2024-02-13","2023-09-25","2023-08-31","2023-08-22","2023-08-09","2023-07-25","2023-07-21","2023-06-28","2023-06-16","2023-06-13","2023-05-22","2023-03-30","2023-03-27","2022-11-21","2022-11-16","2022-11-10","2022-11-10","2022-11-09","2022-10-19","2022-08-05","2022-07-28","2022-06-23","2022-06-21","2022-06-15","2022-06-14","2022-06-08","2022-06-01","2022-05-12","2022-05-12","2022-05-10","2022-05-05","2022-03-31","2022-03-30","2022-03-24","2022-03-16","2022-03-11","2022-03-08","2022-03-02","2022-02-25","2022-02-22","2022-02-16","2021-09-20","2021-09-14","2021-08-16","2021-08-11","2021-08-09","2021-08-04","2021-07-29","2021-07-28","2021-07-22","2021-07-08","2021-06-30","2020-09-29"],"reportDate":["2026-09-28","2026-07-20","2026-06-29","2026-06-24","2026-06-17","2026-06-18","2026-06-15","2026-06-11","2026-06-05","2026-06-03","2026-05-18","2026-05-04","2026-04-30","2026-04-29","2026-04-22","2026-03-16","2026-01-05","2025-12-11","2025-09-26","2025-06-25","2025-06-13","2025-06-11","2025-06-11","2025-06-04","2025-06-04","2025-06-04","2025-05-12","2025-03-05","2024-10-18","","2024-08-09","2024-06-27","2024-06-26","2024-06-26","2024-06-20","2024-06-20","2024-06-20","2024-06-10","2024-05-24","2024-04-11","2024-04-02","2024-03-27","2024-03-25","2024-03-21","2024-03-21","2024-03-04","2024-02-19","2024-02-09","2023-09-21","2023-08-29","2023-08-18","2023-08-09","2023-07-21","2023-07-19","2023-06-27","2023-06-14","2023-06-06","2023-05-18","2023-03-28","2023-03-23","2022-11-17","2022-11-14","2022-11-08","2022-11-08","2022-11-09","2022-10-17","2022-08-03","2022-07-26","2022-06-21","2022-06-15","2022-06-13","2022-06-10","2022-06-07","2022-05-19","2022-05-10","2022-05-05","2022-05-06","2022-05-05","2022-03-29","2022-03-28","2022-03-24","2022-03-14","2022-03-09","2022-03-04","2022-02-28","2022-02-23","2022-02-17","2022-02-14","2021-09-17","2021-09-14","2021-08-12","2021-08-09","2021-08-09","2021-08-02","2021-07-27","2021-07-28","2021-07-22","2021-07-06","2021-06-30",""],"acceptanceDateTime":["2026-09-30T20:55:47.000Z","2026-07-22T21:31:04.000Z","2026-07-01T21:45:50.000Z","2026-06-26T20:52:11.000Z","2026-06-22T20:32:39.000Z","2026-06-22T20:31:15.000Z","2026-06-16T00:22:28.000Z","2026-06-13T00:30:48.000Z","2026-06-08T22:57:49.000Z","2026-06-05T21:12:37.000Z","2026-05-20T20:59:55.000Z","2026-05-06T23:16:36.000Z","2026-04-30T22:36:31.000Z","2026-04-29T22:46:09.000Z","2026-04-23T20:28:10.000Z","2026-03-18T20:15:17.000Z","2026-01-07T21:55:47.000Z","2025-12-16T00:55:04.000Z","2025-09-30T20:35:57.000Z","2025-06-27T21:21:48.000Z","2025-06-18T00:17:31.000Z","2025-06-13T23:33:08.000Z","2025-06-11T23:43:00.000Z","2025-06-06T12:43:35.000Z","2025-06-05T22:12:53.000Z","2025-06-05T20:21:16.000Z","2025-05-14T22:08:19.000Z","2025-03-07T23:05:32.000Z","2024-10-22T20:20:04.000Z","2024-08-15T21:34:25.000Z","2024-08-13T21:03:34.000Z","2024-07-02T01:29:04.000Z","2024-06-28T22:14:12.000Z","2024-06-28T20:35:36.000Z","2024-06-24T21:36:16.000Z","2024-06-24T21:13:43.000Z","2024-06-21T20:14:51.000Z","2024-06-10T21:26:39.000Z","2024-05-24T23:56:42.000Z","2024-04-15T20:15:12.000Z","2024-04-04T20:15:15.000Z","2024-03-28T00:16:51.000Z","2024-03-27T23:37:52.000Z","2024-03-26T00:48:33.000Z","2024-03-26T00:44:12.000Z","2024-03-06T21:15:31.000Z","2024-02-21T01:07:29.000Z","2024-02-13T21:33:35.000Z","2023-09-25T20:30:22.000Z","2023-08-31T21:26:46.000Z","2023-08-22T21:01:31.000Z","2023-08-09T21:00:37.000Z","2023-07-25T20:30:41.000Z","2023-07-21T20:31:07.000Z","2023-06-29T01:00:51.000Z","2023-06-16T21:15:23.000Z","2023-06-13T20:21:16.000Z","2023-05-22T21:22:39.000Z","2023-03-30T21:03:48.000Z","2023-03-27T21:01:02.000Z","2022-11-21T21:31:14.000Z","2022-11-17T00:33:07.000Z","2022-11-10T23:00:43.000Z","2022-11-10T22:00:37.000Z","2022-11-10T01:30:35.000Z","2022-10-19T20:32:03.000Z","2022-08-05T20:06:11.000Z","2022-07-28T21:16:50.000Z","2022-06-23T20:31:16.000Z","2022-06-21T20:30:54.000Z","2022-06-15T20:25:30.000Z","2022-06-14T20:30:43.000Z","2022-06-08T21:30:30.000Z","2022-06-01T21:15:38.000Z","2022-05-12T23:06:36.000Z","2022-05-12T22:50:59.000Z","2022-05-10T20:31:41.000Z","2022-05-06T01:01:12.000Z","2022-03-31T20:31:24.000Z","2022-03-30T20:31:05.000Z","2022-03-25T01:22:21.000Z","2022-03-16T21:10:03.000Z","2022-03-11T22:27:19.000Z","2022-03-08T21:59:36.000Z","2022-03-02T22:29:41.000Z","2022-02-25T22:43:34.000Z","2022-02-22T22:22:21.000Z","2022-02-17T00:39:48.000Z","2021-09-20T20:30:25.000Z","2021-09-14T23:32:12.000Z","2021-08-16T20:47:35.000Z","2021-08-11T21:28:35.000Z","2021-08-09T22:16:55.000Z","2021-08-04T20:31:17.000Z","2021-07-29T20:30:54.000Z","2021-07-29T00:34:14.000Z","2021-07-23T01:24:22.000Z","2021-07-08T20:32:55.000Z","2021-06-30T22:03:00.000Z","2020-09-29T17:10:08.000Z"],"act":["34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","33"],"form":["4","4","4","4","4","4","4","4","4","4","4","4","3","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","144","4","4","4","4","4","4","4","4","4","4","4","3","4","4","3","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","3","3","4","4","4","4","4","4","4","4","4","4","3/A","4","3","4","4","3","4","4","4","4","4","4","4","4","3","4","4","3","4","4","3","3","4","3","D"],"fileNumber":["001-40708","001-42126","001-40708","001-39756","001-41551","001-41374","001-40532","001-40475","001-40708","001-40551","001-41551","001-43250","001-43250","001-40708","001-41551","001-40551","001-40708","001-40708","001-41374","001-39756","001-41551","001-40475","001-40532","001-41374","001-40551","001-40708","001-40366","001-40475","001-40475","","001-41331","001-40708","001-40708","001-40475","001-41551","001-39756","001-41374","001-40551","001-40366","001-41551","001-41989","001-41989","001-39756","001-40532","001-40532","001-40475","001-40655","001-41374","001-39756","001-39756","001-41331","001-40794","001-40551","001-40475","001-39756","001-40475","001-40551","001-40708","001-40794","001-40794","001-41551","001-41551","001-39756","001-39756","001-41551","001-40794","001-41331","001-41331","001-41331","001-40551","001-41331","001-40655","001-40794","001-40708","001-41374","001-41374","001-41374","001-41374","001-41331","001-40655","001-41331","001-40632","001-40632","001-40632","001-40632","001-40632","001-40632","001-40632","001-40794","001-40794","001-40708","001-40708","001-40708","001-40655","001-40632","001-40655","001-40632","001-40551","001-40551","021-376586"],"filmNumber":["261427763","261194595","261146784","261130138","261107560","261107531","261092594","261088765","261074069","261070240","261004876","26950225","26928033","26918936","26889041","26769170","26516364","251573031","251360995","251087990","251054877","251048112","251041271","251028987","251028464","251027403","25947527","25721520","241386558","","241202750","241092735","241087293","241086292","241065515","241065275","241060334","241033867","24986008","24844798","24823287","24792997","24792741","24780722","24780708","24726061","24656004","24626650","231276145","231229821","231194408","231156079","231108951","231102872","231053985","231022253","231011455","23945698","23781582","23765195","221406173","221396558","221378900","221378278","221374543","221318942","221140779","221116239","221035878","221028521","221018055","221015238","221004322","22988297","22919593","22919542","22910224","22898566","22793090","22786916","22768076","22745723","22734189","22722510","22705282","22682483","22659477","22645227","211263596","211253780","211179252","211164718","211157756","211144469","211127869","211124408","211108891","211080527","211063119","201207810"],"items":["","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","06b,3C,3C.7"],"core_type":["4","4","4","4","4","4","4","4","4","4","4","4","3","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","144","4","4","4","4","4","4","4","4","4","4","4","3","4","4","3","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","4","3","3","4","4","4","4","4","4","4","4","4","4","3/A","4","3","4","4","3","4","4","4","4","4","4","4","4","3","4","4","3","4","4","3","3","4","3","D"],"size":[35334,28433,18351,14306,14153,14374,14606,18094,18332,18992,15298,42855,21057,18443,13625,14323,21490,28494,14223,14088,13821,17739,14213,13923,18653,17881,17866,20189,13867,4412,14610,26296,15918,17742,13829,14103,14060,13862,13873,13210,26304,15860,18101,29810,10433,13866,22056,13970,16305,13630,13350,20320,14601,16747,13848,13809,13791,15679,18855,18856,21015,13824,15748,10083,13474,12625,14706,14989,12870,13766,14751,18076,14071,15714,31578,14800,13766,17822,22584,14998,13421,15567,17699,17698,17583,17756,17757,17755,27484,16401,42585,15543,24855,22754,27080,13709,14737,26889,14746,8085],"isXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isInlineXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isXBRLNumeric":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,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,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,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,null],"primaryDocument":["xslF345X06/form4-09302026_080936.xml","xslF345X06/form4-07222026_090756.xml","xslF345X06/form4-07012026_090743.xml","xslF345X06/form4-06262026_080605.xml","xslF345X06/form4-06222026_080632.xml","xslF345X06/form4-06222026_080607.xml","xslF345X06/form4-06162026_120622.xml","xslF345X06/form4-06132026_120640.xml","xslF345X06/form4-06082026_100640.xml","xslF345X06/form4-06052026_090630.xml","xslF345X06/form4-05202026_080548.xml","xslF345X06/form4-05062026_110527.xml","xslF345X06/form3-04302026_100424.xml","xslF345X06/form4-04292026_100401.xml","xslF345X06/form4-04232026_080403.xml","xslF345X06/form4-03182026_040301.xml","xslF345X05/form4-01072026_090137.xml","xslF345X05/form4-12162025_121255.xml","xslF345X05/form4-09302025_080950.xml","xslF345X05/form4-06272025_090643.xml","xslF345X05/form4-06182025_120627.xml","xslF345X05/form4-06132025_110604.xml","xslF345X05/form4-06112025_110656.xml","xslF345X05/form4-06062025_120629.xml","xslF345X05/form4-06052025_100655.xml","xslF345X05/form4-06052025_080655.xml","xslF345X05/form4-05142025_100514.xml","xslF345X05/form4-03072025_110328.xml","xslF345X05/form4-10222024_041001.xml","xsl144X01/primary_doc.xml","xslF345X05/form4-08132024_090830.xml","xslF345X05/form4-07022024_010700.xml","xslF345X05/form4-06282024_100608.xml","xslF345X05/form4-06282024_080632.xml","xslF345X05/form4-06242024_090612.xml","xslF345X05/form4-06242024_090638.xml","xslF345X05/form4-06212024_080647.xml","xslF345X05/form4-06102024_090635.xml","xslF345X05/form4-05242024_110533.xml","xslF345X05/form4-04152024_040401.xml","xslF345X05/form4-04042024_040402.xml","xslF345X02/form3-03282024_120342.xml","xslF345X05/form4-03272024_110342.xml","xslF345X05/form4-03262024_120321.xml","xslF345X02/form3-03262024_120301.xml","xslF345X05/form4-03062024_040318.xml","xslF345X05/form4-02212024_010219.xml","xslF345X05/doc4.xml","xslF345X05/tm2326846-1_4seq1.xml","xslF345X05/tm2325196-1_4seq1.xml","xslF345X05/tm2324309-1_4seq1.xml","xslF345X05/tm2323320-1_4seq1.xml","xslF345X05/tm2322012-1_4seq1.xml","xslF345X05/tm2321745-1_4seq1.xml","xslF345X04/tm2320008-1_4seq1.xml","xslF345X04/tm2318968-1_4seq1.xml","xslF345X04/tm2318619-1_4seq1.xml","xslF345X04/tm2316475-1_4seq1.xml","xslF345X04/tm2311057-1_4seq1.xml","xslF345X04/tm2310680-1_4seq1.xml","xslF345X03/tm2231060-1_4seq1.xml","xslF345X03/tm2230749-1_4seq1.xml","xslF345X03/tm2230267-2_4.xml","xslF345X02/tm2230267-1_3.xml","xslF345X02/tm2230160-1_3.xml","xslF345X03/tm2228572-1_4seq1.xml","xslF345X03/tm2222743-1_4seq1.xml","xslF345X03/tm2222103-1_4seq1.xml","xslF345X03/tm2219316-1_4seq1.xml","xslF345X03/tm2218907-1_4seq1.xml","xslF345X03/tm2218531-1_4seq1.xml","xslF345X03/tm2218398-1_4seq1.xml","xslF345X03/tm2218000-1_4seq1.xml","xslF345X03/tm2217502-1_4seq1.xml","xslF345X03/tm2215415-1_4seq1.xml","xslF345X02/tm2214703-2_3a.xml","xslF345X03/tm2215090-1_4seq1.xml","xslF345X02/tm2214703-1_3.xml","xslF345X03/tm2211093-1_4seq1.xml","xslF345X03/tm229507-2_4seq1.xml","xslF345X02/tm2210365-1_3seq1.xml","xslF345X03/tm229507-1_4seq1.xml","xslF345X03/tm229063-1_4seq1.xml","xslF345X03/tm228693-1_4seq1.xml","xslF345X03/tm228233-1_4seq1.xml","xslF345X03/tm227791-1_4.xml","xslF345X03/tm227406-1_4.xml","xslF345X03/tm226959-1_4.xml","xslF345X03/tm2128018-1_4.xml","xslF345X02/tm2127547-2_3.xml","xslF345X03/tm2125234-1_4.xml","xslF345X03/tm2124897-1_4.xml","xslF345X02/tm2124310-1_3.xml","xslF345X03/tm2123992-1_4seq1.xml","xslF345X03/tm2123652-1_4.xml","xslF345X02/tm2123583-1_3.xml","xslF345X02/tm2123072-1_3.xml","xslF345X03/tm2121722-1_4.xml","xslF345X02/tm2121162-1_3.xml","xslFormDX01/primary_doc.xml"],"primaryDocDescription":["","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","FORM 4 SUBMISSION","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT","OWNERSHIP DOCUMENT",""]},"files":[]}}