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The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":158108,"source":{"system":"sec-edgar","filing":"0001562180-22-005681","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218022005681/primarydocument.xml","form_type":"4"}},{"id":2427803,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2022-01-24T16:25:40.000Z","date":"2022-01-20","kind":"exercise","acquired":false,"shares":29900,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The previously granted option, representing a right to purchase a total of 424,900 shares, became exercisable as follows: 284,683 of the shares subject to the option are initial shares (\"Initial Shares\") and 140,217 of the shares subject to the option are contingent shares (\"Contingent Shares\"). 72,235 of the Initial Shares vested on September 17, 2014, 53,112 of the Initial Shares vested on September 17, 2015 and an additional 4,426 of the Initial Shares vested upon each month of continuous service to the Company thereafter. 25% of the Contingent Shares were deemed vested as of September 17, 2014 on January 13, 2015 due to a subsequent event. 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The remainder of the Contingent Shares vested over four years of service following September 17, 2014, with 25% of the remaining 75% of Contingent Shares having vested on September 17, 2015 and the remaining Contingent Shares having vested in 36 equal monthly installments thereafter."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(Continued from footnote 1) Notwithstanding the foregoing, 59,533 shares subject to this option that would otherwise have vested monthly between January 2018 and September 2018 were deemed vested as of December 31, 2015 on January 28, 2016 due to subsequent events."}],"balance_after":64900,"derivative":{"exercise_price":0.85,"expiration_date":"2024-09-23","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001562180-21-005088","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218021005088/primarydocument.xml","form_type":"4"}},{"id":2622159,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-07-29T16:21:05.000Z","date":"2021-07-27","kind":"exercise","acquired":true,"shares":10000,"price":0.85,"value":8500.0,"ownership":{"direct":true},"balance_after":123640,"source":{"system":"sec-edgar","filing":"0001562180-21-005088","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218021005088/primarydocument.xml","form_type":"4"}},{"id":2902344,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-01-20T16:19:30.000Z","date":"2021-01-15","kind":"sale","acquired":false,"shares":252,"price":50.04,"value":12610.08,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $50.00 to $50.08. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":113640,"source":{"system":"sec-edgar","filing":"0001562180-21-000379","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218021000379/primarydocument.xml","form_type":"4"}},{"id":2907147,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-01-14T18:53:57.000Z","date":"2021-01-14","kind":"sale","acquired":false,"shares":11093,"price":50.03,"value":554982.79,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $50.00 to $50.10. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":113892,"source":{"system":"sec-edgar","filing":"0001562180-21-000344","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218021000344/primarydocument.xml","form_type":"4"}},{"id":2907146,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-01-14T18:53:57.000Z","date":"2021-01-12","kind":"sale","acquired":false,"shares":4200,"price":50.01,"value":210042.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $50.00 to $50.10. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":124985,"source":{"system":"sec-edgar","filing":"0001562180-21-000344","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218021000344/primarydocument.xml","form_type":"4"}},{"id":2911021,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-01-11T16:28:59.000Z","date":"2021-01-08","kind":"sale","acquired":false,"shares":573,"price":48.15,"value":27589.95,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $47.98 to $48.56. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":129185,"source":{"system":"sec-edgar","filing":"0001562180-21-000283","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218021000283/primarydocument.xml","form_type":"4"}},{"id":2911020,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-01-11T16:28:59.000Z","date":"2021-01-08","kind":"sale","acquired":false,"shares":2208,"price":47.49,"value":104857.92,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $46.92 to $47.82. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":129758,"source":{"system":"sec-edgar","filing":"0001562180-21-000283","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218021000283/primarydocument.xml","form_type":"4"}},{"id":2911019,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-01-11T16:28:59.000Z","date":"2021-01-08","kind":"sale","acquired":false,"shares":2460,"price":46.45,"value":114267.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $45.92 to $46.87. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":131966,"source":{"system":"sec-edgar","filing":"0001562180-21-000283","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218021000283/primarydocument.xml","form_type":"4"}},{"id":2911018,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-01-11T16:28:59.000Z","date":"2021-01-07","kind":"sale","acquired":false,"shares":10998,"price":50,"value":549900.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $50.00 to $50.095. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":134426,"source":{"system":"sec-edgar","filing":"0001562180-21-000283","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218021000283/primarydocument.xml","form_type":"4"}},{"id":2915773,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2021-01-06T08:56:53.000Z","date":"2021-01-04","kind":"grant","acquired":true,"shares":56200,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"25% of the shares subject to this option shall vest after 12 months of continuous service with the Issuer. 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The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":136400,"source":{"system":"sec-edgar","filing":"0001562180-20-007470","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020007470/primarydocument.xml","form_type":"4"}},{"id":2946618,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-12-14T16:20:32.000Z","date":"2020-12-11","kind":"sale","acquired":false,"shares":14916,"price":40.17,"value":599175.72,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $40.00 to $40.54. The price reported above reflects the weighted average sale price. 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The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":210215,"source":{"system":"sec-edgar","filing":"0001562180-20-001111","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020001111/primarydocument.xml","form_type":"4"}},{"id":3277235,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-02-12T16:24:21.000Z","date":"2020-02-10","kind":"sale","acquired":false,"shares":677,"price":49.05,"value":33206.85,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $48.64 to $49.47. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":224344,"source":{"system":"sec-edgar","filing":"0001562180-20-001111","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020001111/primarydocument.xml","form_type":"4"}},{"id":3277234,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-02-12T16:24:21.000Z","date":"2020-02-10","kind":"exercise","acquired":true,"shares":3000,"price":13.09,"value":39270.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":225021,"source":{"system":"sec-edgar","filing":"0001562180-20-001111","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020001111/primarydocument.xml","form_type":"4"}},{"id":3284540,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-02-07T16:21:17.000Z","date":"2020-02-05","kind":"sale","acquired":false,"shares":300,"price":50,"value":15000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":222021,"source":{"system":"sec-edgar","filing":"0001562180-20-001014","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020001014/primarydocument.xml","form_type":"4"}},{"id":3306428,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-01-21T16:17:40.000Z","date":"2020-01-17","kind":"sale","acquired":false,"shares":2394,"price":50,"value":119700.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $50.00 to $50.02. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":222321,"source":{"system":"sec-edgar","filing":"0001562180-20-000453","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020000453/primarydocument.xml","form_type":"4"}},{"id":3313397,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2020-01-10T16:20:53.000Z","date":"2020-01-08","kind":"exercise","acquired":false,"shares":3000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The previously granted option, representing a right to purchase a total of 75,000 shares, became exercisable as follows: 25% of the shares subject to this option vested on January 28, 2017, and the balance vests in equal monthly installments over the 36 months thereafter while the optionee provides continuous service to the Issuer."}],"balance_after":29374,"derivative":{"exercise_price":13.09,"expiration_date":"2026-01-27","underlying":"Common Stock","underlying_shares":3000},"source":{"system":"sec-edgar","filing":"0001562180-20-000321","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020000321/primarydocument.xml","form_type":"4"}},{"id":3313396,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-01-10T16:20:53.000Z","date":"2020-01-08","kind":"sale","acquired":false,"shares":5100,"price":41.92,"value":213792.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $41.70 to $42.19. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":224715,"source":{"system":"sec-edgar","filing":"0001562180-20-000321","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020000321/primarydocument.xml","form_type":"4"}},{"id":3313395,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-01-10T16:20:53.000Z","date":"2020-01-08","kind":"sale","acquired":false,"shares":2400,"price":41.4,"value":99360.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $40.66 to $41.65. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":229815,"source":{"system":"sec-edgar","filing":"0001562180-20-000321","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020000321/primarydocument.xml","form_type":"4"}},{"id":3313394,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-01-10T16:20:53.000Z","date":"2020-01-08","kind":"exercise","acquired":true,"shares":3000,"price":13.09,"value":39270.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":232215,"source":{"system":"sec-edgar","filing":"0001562180-20-000321","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020000321/primarydocument.xml","form_type":"4"}},{"id":3318500,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2020-01-06T16:21:46.000Z","date":"2020-01-02","kind":"grant","acquired":true,"shares":50000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"25% of the shares subject to this option shall vest after 12 months of continuous service with the Issuer. The balance will vest in equal monthly installments over the 36 months following January 2, 2021 while the optionee provides continuous service to the Issuer."}],"balance_after":50000,"derivative":{"exercise_price":38.99,"expiration_date":"2030-01-02","underlying":"Common Stock","underlying_shares":50000},"source":{"system":"sec-edgar","filing":"0001562180-20-000216","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218020000216/primarydocument.xml","form_type":"4"}},{"id":3579813,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-03-25T12:32:58.000Z","date":"2019-03-21","kind":"sale","acquired":false,"shares":1700,"price":61.31,"value":104227.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $61.12 to $61.65. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":229215,"source":{"system":"sec-edgar","filing":"0001562180-19-002018","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218019002018/primarydocument.xml","form_type":"4"}},{"id":3579812,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-03-25T12:32:58.000Z","date":"2019-03-21","kind":"sale","acquired":false,"shares":8300,"price":60.64,"value":503312.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $60.12 to $61.09. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":230915,"source":{"system":"sec-edgar","filing":"0001562180-19-002018","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218019002018/primarydocument.xml","form_type":"4"}},{"id":3606360,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-03-07T16:23:14.000Z","date":"2019-03-05","kind":"sale","acquired":false,"shares":3068,"price":60.01,"value":184110.68,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $60.00 to $60.08. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":239215,"source":{"system":"sec-edgar","filing":"0001562180-19-001801","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218019001801/primarydocument.xml","form_type":"4"}},{"id":3665962,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2019-02-11T16:20:48.000Z","date":"2019-02-07","kind":"exercise","acquired":false,"shares":120000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The previously granted option, representing a right to purchase a total of 424,900 shares, became exercisable as follows: 284,683 of the shares subject to the option are initial shares (\"Initial Shares\") and 140,217 of the shares subject to the option are contingent shares (\"Contingent Shares\"). 72,235 of the Initial Shares vested on September 17, 2014, 53,112 of the Initial Shares vested on September 17, 2015 and an additional 4,426 of the Initial Shares vested upon each month of continuous service to the Company thereafter. 25% of the Contingent Shares were deemed vested as of September 17, 2014 on January 13, 2015 due to a subsequent event. The remainder of the Contingent Shares vested over four years of service following September 17, 2014, with 25% of the remaining 75% of Contingent Shares having vested on September 17, 2015 and the remaining Contingent Shares having vested in 36 equal monthly installments thereafter."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(Continued from footnote 1) Notwithstanding the foregoing, 59,533 shares subject to this option that would otherwise have vested monthly between January 2018 and September 2018 were deemed vested as of December 31, 2015 on January 28, 2016 due to subsequent events."}],"balance_after":84900,"derivative":{"exercise_price":0.85,"expiration_date":"2024-09-23","underlying":"Common Stock","underlying_shares":120000},"source":{"system":"sec-edgar","filing":"0001562180-19-000874","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218019000874/primarydocument.xml","form_type":"4"}},{"id":3665961,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-02-11T16:20:48.000Z","date":"2019-02-07","kind":"exercise","acquired":true,"shares":120000,"price":0.85,"value":102000.0,"ownership":{"direct":true},"balance_after":242283,"source":{"system":"sec-edgar","filing":"0001562180-19-000874","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218019000874/primarydocument.xml","form_type":"4"}},{"id":3701994,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2019-01-07T16:23:07.000Z","date":"2019-01-03","kind":"grant","acquired":true,"shares":57000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"25% of the shares subject to this option shall vest after 12 months of continuous service with the Issuer. The balance will vest in equal monthly installments over the 36 months following January 3, 2020 while the optionee provides continuous service to the Issuer."}],"balance_after":57000,"derivative":{"exercise_price":40.82,"expiration_date":"2029-01-03","underlying":"Common Stock","underlying_shares":57000},"source":{"system":"sec-edgar","filing":"0001562180-19-000219","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218019000219/primarydocument.xml","form_type":"4"}},{"id":3724631,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-12-19T16:32:58.000Z","date":"2018-12-17","kind":"sale","acquired":false,"shares":1700,"price":47.74,"value":81158.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $47.38 to $48.12. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":122283,"source":{"system":"sec-edgar","filing":"0001562180-18-005051","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018005051/primarydocument.xml","form_type":"4"}},{"id":3724630,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-12-19T16:32:58.000Z","date":"2018-12-17","kind":"sale","acquired":false,"shares":1700,"price":46.47,"value":78999.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $46.21 to $47.00. The price reported above reflects the weighted average sale price. 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The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":125683,"source":{"system":"sec-edgar","filing":"0001562180-18-005051","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018005051/primarydocument.xml","form_type":"4"}},{"id":3759132,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-19T16:16:58.000Z","date":"2018-11-15","kind":"sale","acquired":false,"shares":100,"price":64.1,"value":6410.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":129783,"source":{"system":"sec-edgar","filing":"0001562180-18-004611","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004611/primarydocument.xml","form_type":"4"}},{"id":3759131,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-19T16:16:58.000Z","date":"2018-11-15","kind":"sale","acquired":false,"shares":700,"price":63.05,"value":44135.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $62.81 to $63.32. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":129883,"source":{"system":"sec-edgar","filing":"0001562180-18-004611","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004611/primarydocument.xml","form_type":"4"}},{"id":3759130,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-19T16:16:58.000Z","date":"2018-11-15","kind":"sale","acquired":false,"shares":2042,"price":62.23,"value":127073.66,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $61.81 to $62.74. The price reported above reflects the weighted average sale price. 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The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":132625,"source":{"system":"sec-edgar","filing":"0001562180-18-004611","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004611/primarydocument.xml","form_type":"4"}},{"id":3759128,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-19T16:16:58.000Z","date":"2018-11-15","kind":"sale","acquired":false,"shares":1900,"price":59.06,"value":112214.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $58.81 to $59.77. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":133213,"source":{"system":"sec-edgar","filing":"0001562180-18-004611","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004611/primarydocument.xml","form_type":"4"}},{"id":3759127,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-19T16:16:58.000Z","date":"2018-11-15","kind":"sale","acquired":false,"shares":2170,"price":58.46,"value":126858.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $57.68 to $58.66. 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The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":135113,"source":{"system":"sec-edgar","filing":"0001562180-18-004611","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004611/primarydocument.xml","form_type":"4"}},{"id":3774321,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to 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The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":137283,"source":{"system":"sec-edgar","filing":"0001562180-18-004417","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004417/primarydocument.xml","form_type":"4"}},{"id":3774316,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-05T16:20:01.000Z","date":"2018-11-02","kind":"exercise","acquired":true,"shares":20833,"price":19.5,"value":406243.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":191024,"source":{"system":"sec-edgar","filing":"0001562180-18-004417","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004417/primarydocument.xml","form_type":"4"}},{"id":3774315,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-05T16:20:01.000Z","date":"2018-11-02","kind":"exercise","acquired":true,"shares":32908,"price":13.09,"value":430765.72,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":170191,"source":{"system":"sec-edgar","filing":"0001562180-18-004417","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004417/primarydocument.xml","form_type":"4"}},{"id":3774314,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-05T16:20:01.000Z","date":"2018-11-01","kind":"sale","acquired":false,"shares":19677,"price":70.04,"value":1378177.08,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $70.00 to $70.26. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":137283,"source":{"system":"sec-edgar","filing":"0001562180-18-004417","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004417/primarydocument.xml","form_type":"4"}},{"id":3774313,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-05T16:20:01.000Z","date":"2018-11-01","kind":"exercise","acquired":true,"shares":9718,"price":13.09,"value":127208.62,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":156960,"source":{"system":"sec-edgar","filing":"0001562180-18-004417","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004417/primarydocument.xml","form_type":"4"}},{"id":3774312,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-11-05T16:20:01.000Z","date":"2018-11-01","kind":"exercise","acquired":true,"shares":9959,"price":3.76,"value":37445.84,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":147242,"source":{"system":"sec-edgar","filing":"0001562180-18-004417","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004417/primarydocument.xml","form_type":"4"}},{"id":3788459,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-10-17T16:24:13.000Z","date":"2018-10-15","kind":"sale","acquired":false,"shares":5000,"price":59.59,"value":297950.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $59.34 to $59.97. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":137283,"source":{"system":"sec-edgar","filing":"0001562180-18-004241","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004241/primarydocument.xml","form_type":"4"}},{"id":3788458,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-10-17T16:24:13.000Z","date":"2018-10-15","kind":"sale","acquired":false,"shares":2500,"price":58.93,"value":147325.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $58.29 to $59.25. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":142283,"source":{"system":"sec-edgar","filing":"0001562180-18-004241","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018004241/primarydocument.xml","form_type":"4"}},{"id":3811645,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"exercise","acquired":false,"shares":30000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"The previously granted option, representing a right to purchase a total of 424,900 shares, became exercisable as follows: 284,683 of the shares subject to the option are initial shares (\"Initial Shares\") and 140,217 of the shares subject to the option are contingent shares (\"Contingent Shares\"). 72,235 of the Initial Shares vested on September 17, 2014, 53,112 of the Initial Shares vested on September 17, 2015 and an additional 4,426 of the Initial Shares vested upon each month of continuous service to the Company thereafter. 25% of the Contingent Shares were deemed vested as of September 17, 2014 on January 13, 2015 due to a subsequent event. The remainder of the Contingent Shares vested over four years of service following September 17, 2014, with 25% of the remaining 75% of Contingent Shares having vested on September 17, 2015 and the remaining Contingent Shares having vested in 36 equal monthly installments thereafter."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F12","text":"(Continued from footnote 11) Notwithstanding the foregoing, 59,533 shares subject to this option that would have otherwise vested monthly between January 2018 and September 2018 were deemed vested as of December 31, 2015 on January 28, 2016 due to subsequent events."}],"balance_after":204900,"derivative":{"exercise_price":0.85,"expiration_date":"2024-09-23","underlying":"Common Stock","underlying_shares":30000},"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}},{"id":3811644,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"exercise","acquired":true,"shares":30000,"price":0.85,"value":25500.0,"ownership":{"direct":true},"balance_after":144783,"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}},{"id":3811643,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"sale","acquired":false,"shares":100,"price":80.8,"value":8080.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."}],"balance_after":114783,"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}},{"id":3811642,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"sale","acquired":false,"shares":500,"price":79.63,"value":39815.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"This transaction was executed in multiple trades at prices ranging from $79.40 to $80.00. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":114883,"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}},{"id":3811641,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"sale","acquired":false,"shares":450,"price":78.64,"value":35388.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"This transaction was executed in multiple trades at prices ranging from $78.40 to $78.95. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":115383,"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}},{"id":3811640,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"sale","acquired":false,"shares":600,"price":77.87,"value":46722.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"This transaction was executed in multiple trades at prices ranging from $77.40 to $78.15. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":115833,"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}},{"id":3811639,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"sale","acquired":false,"shares":1479,"price":76.79,"value":113572.41,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $76.35 to $77.25. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":116433,"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}},{"id":3811638,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"sale","acquired":false,"shares":700,"price":75.59,"value":52913.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $75.00 to $75.90. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":117912,"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}},{"id":3811637,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"sale","acquired":false,"shares":710,"price":74.02,"value":52554.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $73.85 to $74.35. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":118612,"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}},{"id":3811636,"issuer":{"id":2211,"kind":"organization","name":"REGENXBIO Inc.","symbol":"RGNX"},"owners":[{"id":92786,"kind":"person","name":"Vasista Vittal","position":1,"cik":"0001652827","reported_name":"Vasista Vittal","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-09-19T16:26:50.000Z","date":"2018-09-17","kind":"sale","acquired":false,"shares":1200,"price":73.4,"value":88080.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $72.80 to $73.75. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":119322,"source":{"system":"sec-edgar","filing":"0001562180-18-003984","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1652827/000156218018003984/primarydocument.xml","form_type":"4"}}],"next_cursor":"2018-09-19T16:26:50.000000Z,3811636"}