{"data":[{"accessionNo":"0000019617-26-000350","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001590877","issuerName":"REGENXBIO Inc.","ticker":"RGNX","cusip":"75901B107","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-09-30","reportingPerson":"JPMORGAN CHASE & CO.","reportingCik":null,"personType":"HC","sharesOwned":3560915,"percentOfClass":5.3,"filedAt":"2026-10-13","canonicalUrl":"https://xoomar.com/markets/stocks/rgnx"},{"accessionNo":"0000019617-26-000236","formType":"SCHEDULE 13G/A","amendmentNo":7,"issuerCik":"0001590877","issuerName":"REGENXBIO Inc.","ticker":"RGNX","cusip":"75901B107","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-29","reportingPerson":"JPMORGAN CHASE & CO","reportingCik":null,"personType":"HC","sharesOwned":2279362,"percentOfClass":4.4,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/rgnx"},{"accessionNo":"0000093751-26-000286","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001590877","issuerName":"REGENXBIO INC","ticker":"RGNX","cusip":"75901B107","securityClass":"COMMON STOCK","eventDate":"2026-03-31","reportingPerson":"STATE STREET CORPORATION","reportingCik":null,"personType":"HC","sharesOwned":2731553,"percentOfClass":5.3,"filedAt":"2026-05-12","canonicalUrl":"https://xoomar.com/markets/stocks/rgnx"},{"accessionNo":"0000102909-26-002154","formType":"SCHEDULE 13G/A","amendmentNo":10,"issuerCik":"0001590877","issuerName":"REGENXBIO Inc","ticker":"RGNX","cusip":"75901B107","securityClass":"Common Stock","eventDate":"2026-03-13","reportingPerson":"The Vanguard Group","reportingCik":null,"personType":"IA","sharesOwned":0,"percentOfClass":0,"filedAt":"2026-03-27","canonicalUrl":"https://xoomar.com/markets/stocks/rgnx"},{"accessionNo":"0002052113-26-000190","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001590877","issuerName":"REGENXBIO INC","ticker":"RGNX","cusip":null,"securityClass":"Common Stock","eventDate":"2025-12-31","reportingPerson":"BlackRock Portfolio Management LLC","reportingCik":null,"personType":"HC","sharesOwned":2085619,"percentOfClass":4.1,"filedAt":"2026-01-21","canonicalUrl":"https://xoomar.com/markets/stocks/rgnx"}],"updatedAt":"2026-11-05T17:43:51.702Z","source":"xoomar.com","docs":"https://xoomar.com/markets/api","license":"https://xoomar.com/terms","attribution":"Credit XOOMAR with a link to the dataset page on xoomar.com when you republish this data","canonicalUrl":"https://xoomar.com/markets/stocks/rgnx","meta":{"source":"SEC","sourceAttribution":"Schedule 13D and 13G data: SEC.","notice":"10 requests a minute without a key, 30 with a free key. Get a free key at https://xoomar.com/signup?utm_source=api, register your app at https://xoomar.com/developers/register?utm_source=api, and credit the data as \"Data: XOOMAR\" together with the sourceAttribution line."}}