{"data":[{"accessionNo":"0000070858-26-000536","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock","eventDate":"2026-09-30","reportingPerson":"BANK OF AMERICA CORP /DE/","reportingCik":null,"personType":"HC","sharesOwned":2205390,"percentOfClass":7.4,"filedAt":"2026-10-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001231919-26-001441","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.00001 par value","eventDate":"2026-10-02","reportingPerson":"Frazier Life Sciences Public Fund, L.P.","reportingCik":null,"personType":"PN","sharesOwned":1755116,"percentOfClass":5.9,"filedAt":"2026-10-09","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001231919-26-001441","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.00001 par value","eventDate":"2026-10-02","reportingPerson":"FHMLSP, L.P.","reportingCik":null,"personType":"PN","sharesOwned":1755116,"percentOfClass":5.9,"filedAt":"2026-10-09","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001231919-26-001441","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.00001 par value","eventDate":"2026-10-02","reportingPerson":"FHMLSP, L.L.C.","reportingCik":null,"personType":"OO","sharesOwned":1755116,"percentOfClass":5.9,"filedAt":"2026-10-09","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001231919-26-001441","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.00001 par value","eventDate":"2026-10-02","reportingPerson":"FHMLS XII, L.P.","reportingCik":null,"personType":"PN","sharesOwned":125039,"percentOfClass":0.4,"filedAt":"2026-10-09","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001231919-26-001441","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.00001 par value","eventDate":"2026-10-02","reportingPerson":"Frazier Life Sciences XII, L.P.","reportingCik":null,"personType":"PN","sharesOwned":125039,"percentOfClass":0.4,"filedAt":"2026-10-09","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001231919-26-001441","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.00001 par value","eventDate":"2026-10-02","reportingPerson":"FHMLS XII, L.L.C.","reportingCik":null,"personType":"OO","sharesOwned":125039,"percentOfClass":0.4,"filedAt":"2026-10-09","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001231919-26-001441","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.00001 par value","eventDate":"2026-10-02","reportingPerson":"FHMLS XI, L.P.","reportingCik":null,"personType":"PN","sharesOwned":23029,"percentOfClass":0.1,"filedAt":"2026-10-09","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001231919-26-001441","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.00001 par value","eventDate":"2026-10-02","reportingPerson":"FHMLS XI, L.L.C.","reportingCik":null,"personType":"OO","sharesOwned":23029,"percentOfClass":0.1,"filedAt":"2026-10-09","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001231919-26-001441","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.00001 par value","eventDate":"2026-10-02","reportingPerson":"Frazier Life Sciences XI, L.P.","reportingCik":null,"personType":"PN","sharesOwned":23029,"percentOfClass":0.1,"filedAt":"2026-10-09","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-005496","formType":"SCHEDULE 13G/A","amendmentNo":2,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Point72 Capital Advisors, Inc.","reportingCik":null,"personType":"CO","sharesOwned":1173396,"percentOfClass":4.95,"filedAt":"2026-08-14","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-005496","formType":"SCHEDULE 13G/A","amendmentNo":2,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Steven A. Cohen","reportingCik":null,"personType":"IN","sharesOwned":1173396,"percentOfClass":4.95,"filedAt":"2026-08-14","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-005496","formType":"SCHEDULE 13G/A","amendmentNo":2,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Point72 Asset Management, L.P.","reportingCik":null,"personType":"PN","sharesOwned":1173396,"percentOfClass":4.95,"filedAt":"2026-08-14","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-005207","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Alex Silverstein","reportingCik":null,"personType":"HC,IN","sharesOwned":0,"percentOfClass":0,"filedAt":"2026-08-14","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-005207","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Sirenia Capital Management LP","reportingCik":null,"personType":"IA,PN","sharesOwned":0,"percentOfClass":0,"filedAt":"2026-08-14","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-035622","formType":"SCHEDULE 13G/A","amendmentNo":2,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"James Silverman","reportingCik":null,"personType":"IN","sharesOwned":931000,"percentOfClass":5.49,"filedAt":"2026-07-31","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-035622","formType":"SCHEDULE 13G/A","amendmentNo":2,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Opaleye, L.P.","reportingCik":null,"personType":"PN","sharesOwned":931000,"percentOfClass":5.49,"filedAt":"2026-07-31","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-035622","formType":"SCHEDULE 13G/A","amendmentNo":2,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Opaleye Management Inc.","reportingCik":null,"personType":"IA,CO","sharesOwned":931000,"percentOfClass":5.49,"filedAt":"2026-07-31","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000713","formType":"SCHEDULE 13D/A","amendmentNo":4,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"COMMON STOCK","eventDate":"2026-07-16","reportingPerson":"ORBIMED ADVISORS LLC","reportingCik":"0001055951","personType":"IA","sharesOwned":4127987,"percentOfClass":13.9,"filedAt":"2026-07-20","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000713","formType":"SCHEDULE 13D/A","amendmentNo":4,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"COMMON STOCK","eventDate":"2026-07-16","reportingPerson":"ORBIMED CAPITAL GP VII LLC","reportingCik":"0001760648","personType":"OO","sharesOwned":3502987,"percentOfClass":11.8,"filedAt":"2026-07-20","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000713","formType":"SCHEDULE 13D/A","amendmentNo":4,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"COMMON STOCK","eventDate":"2026-07-16","reportingPerson":"OrbiMed Genesis GP LLC","reportingCik":"0001808744","personType":"OO","sharesOwned":625000,"percentOfClass":2.1,"filedAt":"2026-07-20","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001213900-26-077181","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.0001 par value per share","eventDate":"2026-06-30","reportingPerson":"Aaron Davis","reportingCik":null,"personType":"HC,IN","sharesOwned":3149310,"percentOfClass":13.3,"filedAt":"2026-07-10","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001213900-26-077181","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.0001 par value per share","eventDate":"2026-06-30","reportingPerson":"Boxer Capital Management, LLC","reportingCik":null,"personType":"IA","sharesOwned":3149310,"percentOfClass":13.3,"filedAt":"2026-07-10","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001213900-26-077181","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.0001 par value per share","eventDate":"2026-06-30","reportingPerson":"Boxer Holdings, LP","reportingCik":null,"personType":"HC,PN","sharesOwned":3149310,"percentOfClass":13.3,"filedAt":"2026-07-10","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001213900-26-077181","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, $0.0001 par value per share","eventDate":"2026-06-30","reportingPerson":"Boxer Holdings GP, LLC","reportingCik":null,"personType":"HC","sharesOwned":3149310,"percentOfClass":13.3,"filedAt":"2026-07-10","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Carlyle Holdings I GP Sub L.L.C.","reportingCik":null,"personType":"OO","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"The Carlyle Group Inc.","reportingCik":null,"personType":"CO","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Carlyle Holdings I GP Inc.","reportingCik":null,"personType":"CO","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Carlyle Genesis UK LLC","reportingCik":null,"personType":"OO","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Carlyle Investment Management L.L.C.","reportingCik":null,"personType":"OO","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Carlyle Holdings I L.P.","reportingCik":null,"personType":"PN","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Abingworth LLP","reportingCik":null,"personType":"PN","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"Abingworth Bioventures VII LP","reportingCik":null,"personType":"PN","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"TC Group, L.L.C.","reportingCik":null,"personType":"OO","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-032227","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-06-30","reportingPerson":"CG Subsidiary Holdings L.L.C.","reportingCik":null,"personType":"OO","sharesOwned":691735,"percentOfClass":4.1,"filedAt":"2026-07-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"LAMPERT MARK N","reportingCik":null,"personType":"IN","sharesOwned":2367524,"percentOfClass":9.99,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"BVF INC/IL","reportingCik":null,"personType":"CO","sharesOwned":2367524,"percentOfClass":9.99,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"BVF PARTNERS L P/IL","reportingCik":null,"personType":"IA,PN","sharesOwned":2367524,"percentOfClass":9.99,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001346824-26-000170","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"Rajeev Shah","reportingCik":null,"personType":"HC,IN","sharesOwned":2332457,"percentOfClass":9.8,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001346824-26-000170","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"RA Capital Management, L.P.","reportingCik":null,"personType":"IA,PN","sharesOwned":2332457,"percentOfClass":9.8,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001346824-26-000170","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"Peter Kolchinsky","reportingCik":null,"personType":"HC,IN","sharesOwned":2332457,"percentOfClass":9.8,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001346824-26-000170","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"RA Capital Healthcare Fund, L.P.","reportingCik":null,"personType":"PN","sharesOwned":2332457,"percentOfClass":9.8,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"BVF GP HOLDINGS LLC","reportingCik":null,"personType":"OO","sharesOwned":2177976,"percentOfClass":9.2,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"BIOTECHNOLOGY VALUE FUND L P","reportingCik":null,"personType":"PN","sharesOwned":1248973,"percentOfClass":5.3,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"BVF I GP LLC","reportingCik":null,"personType":"OO","sharesOwned":1248973,"percentOfClass":5.3,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"BVF II GP LLC","reportingCik":null,"personType":"OO","sharesOwned":929003,"percentOfClass":3.9,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"BIOTECHNOLOGY VALUE FUND II LP","reportingCik":null,"personType":"PN","sharesOwned":929003,"percentOfClass":3.9,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"Biotechnology Value Trading Fund OS LP","reportingCik":null,"personType":"PN","sharesOwned":155156,"percentOfClass":0.7,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000921895-26-001559","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-28","reportingPerson":"BVF Partners OS Ltd.","reportingCik":null,"personType":"CO","sharesOwned":155156,"percentOfClass":0.7,"filedAt":"2026-06-04","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000592","formType":"SCHEDULE 13D/A","amendmentNo":3,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"COMMON STOCK","eventDate":"2026-05-28","reportingPerson":"ORBIMED ADVISORS LLC","reportingCik":"0001055951","personType":"IA","sharesOwned":4127987,"percentOfClass":17.4,"filedAt":"2026-06-01","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000592","formType":"SCHEDULE 13D/A","amendmentNo":3,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"COMMON STOCK","eventDate":"2026-05-28","reportingPerson":"ORBIMED CAPITAL GP VII LLC","reportingCik":"0001760648","personType":"OO","sharesOwned":3502987,"percentOfClass":14.8,"filedAt":"2026-06-01","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000592","formType":"SCHEDULE 13D/A","amendmentNo":3,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"COMMON STOCK","eventDate":"2026-05-28","reportingPerson":"OrbiMed Genesis GP LLC","reportingCik":"0001808744","personType":"OO","sharesOwned":625000,"percentOfClass":2.6,"filedAt":"2026-06-01","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"ATLAS VENTURE ASSOCIATES X, L.P.","reportingCik":"0001742766","personType":"PN","sharesOwned":864261,"percentOfClass":3.6,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Fund X, L.P.","reportingCik":"0001628098","personType":"PN","sharesOwned":864261,"percentOfClass":3.6,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Associates X, LLC","reportingCik":"0001742765","personType":"OO","sharesOwned":864261,"percentOfClass":3.6,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Associates Opportunity II, LLC","reportingCik":"0001935810","personType":"OO","sharesOwned":724549,"percentOfClass":3.1,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Associates Opportunity II, L.P.","reportingCik":"0001935814","personType":"PN","sharesOwned":724549,"percentOfClass":3.1,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Opportunity Fund II, L.P.","reportingCik":"0001885327","personType":"PN","sharesOwned":724549,"percentOfClass":3.1,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Opportunity Fund Ill, L.P.","reportingCik":"0002078188","personType":"PN","sharesOwned":625000,"percentOfClass":2.6,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Associates Opportunity III, L.P.","reportingCik":null,"personType":"PN","sharesOwned":625000,"percentOfClass":2.6,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Associates Opportunity III, LLC","reportingCik":null,"personType":"OO","sharesOwned":625000,"percentOfClass":2.6,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Opportunity Fund I, L.P.","reportingCik":"0001759241","personType":"PN","sharesOwned":503296,"percentOfClass":2.1,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Associates Opportunity I, LLC","reportingCik":"0001780066","personType":"OO","sharesOwned":503296,"percentOfClass":2.1,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001628098-26-000005","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-05-26","reportingPerson":"Atlas Venture Associates Opportunity I, L.P.","reportingCik":"0001780065","personType":"PN","sharesOwned":503296,"percentOfClass":2.1,"filedAt":"2026-05-28","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-003211","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-03-31","reportingPerson":"Sirenia Capital Management LP","reportingCik":null,"personType":"IA,PN","sharesOwned":2057308,"percentOfClass":9.9,"filedAt":"2026-05-15","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-003211","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-03-31","reportingPerson":"Alex Silverstein","reportingCik":null,"personType":"HC,IN","sharesOwned":2057308,"percentOfClass":9.9,"filedAt":"2026-05-15","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-003511","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-03-31","reportingPerson":"Point72 Capital Advisors, Inc.","reportingCik":null,"personType":"CO","sharesOwned":958768,"percentOfClass":5.7,"filedAt":"2026-05-15","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-003511","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-03-31","reportingPerson":"Point72 Asset Management, L.P.","reportingCik":null,"personType":"PN","sharesOwned":958768,"percentOfClass":5.7,"filedAt":"2026-05-15","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000919574-26-003511","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-03-31","reportingPerson":"Steven A. Cohen","reportingCik":null,"personType":"IN","sharesOwned":958768,"percentOfClass":5.7,"filedAt":"2026-05-15","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000500","formType":"SCHEDULE 13D/A","amendmentNo":2,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"COMMON STOCK","eventDate":"2026-05-05","reportingPerson":"ORBIMED CAPITAL GP VII LLC","reportingCik":"0001760648","personType":"OO","sharesOwned":2252987,"percentOfClass":13.3,"filedAt":"2026-05-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000500","formType":"SCHEDULE 13D/A","amendmentNo":2,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"COMMON STOCK","eventDate":"2026-05-05","reportingPerson":"ORBIMED ADVISORS LLC","reportingCik":"0001055951","personType":"IA","sharesOwned":2252987,"percentOfClass":13.3,"filedAt":"2026-05-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-021484","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-03-31","reportingPerson":"James Silverman","reportingCik":null,"personType":"IN","sharesOwned":1256228,"percentOfClass":8.59,"filedAt":"2026-05-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-021484","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-03-31","reportingPerson":"Opaleye Management Inc.","reportingCik":null,"personType":"IA,CO","sharesOwned":1256228,"percentOfClass":8.59,"filedAt":"2026-05-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-021484","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":"746964105","securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-03-31","reportingPerson":"Opaleye, L.P.","reportingCik":null,"personType":"PN","sharesOwned":1256228,"percentOfClass":8.59,"filedAt":"2026-05-06","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000245","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":null,"securityClass":"COMMON STOCK","eventDate":"2026-02-18","reportingPerson":"ORBIMED CAPITAL GP VII LLC","reportingCik":"0001760648","personType":"OO","sharesOwned":2252987,"percentOfClass":15.4,"filedAt":"2026-03-12","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000947871-26-000245","formType":"SCHEDULE 13D/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":null,"securityClass":"COMMON STOCK","eventDate":"2026-02-18","reportingPerson":"ORBIMED ADVISORS LLC","reportingCik":"0001055951","personType":"IA","sharesOwned":2252987,"percentOfClass":15.4,"filedAt":"2026-03-12","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-007650","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":null,"securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-02-19","reportingPerson":"James Silverman","reportingCik":null,"personType":"IN","sharesOwned":1256228,"percentOfClass":8.65,"filedAt":"2026-02-20","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-007650","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":null,"securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-02-19","reportingPerson":"Opaleye, L.P.","reportingCik":null,"personType":"PN","sharesOwned":1256228,"percentOfClass":8.65,"filedAt":"2026-02-20","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0001493152-26-007650","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":null,"securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-02-19","reportingPerson":"Opaleye Management Inc.","reportingCik":null,"personType":"IA,CO","sharesOwned":1256228,"percentOfClass":8.65,"filedAt":"2026-02-20","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000902664-26-001202","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":null,"securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-02-17","reportingPerson":"Point72 Asset Management, L.P.","reportingCik":null,"personType":"PN","sharesOwned":2057308,"percentOfClass":9.9,"filedAt":"2026-02-19","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000902664-26-001202","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":null,"securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-02-17","reportingPerson":"Point72 Capital Advisors, Inc.","reportingCik":null,"personType":"CO","sharesOwned":2057308,"percentOfClass":9.9,"filedAt":"2026-02-19","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000902664-26-001202","formType":"SCHEDULE 13G","amendmentNo":null,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":null,"securityClass":"Common Stock, par value $0.0001 per share","eventDate":"2026-02-17","reportingPerson":"Steven A. Cohen","reportingCik":null,"personType":"IN","sharesOwned":2057308,"percentOfClass":9.9,"filedAt":"2026-02-19","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"},{"accessionNo":"0000078003-26-000020","formType":"SCHEDULE 13G/A","amendmentNo":1,"issuerCik":"0001661998","issuerName":"Q32 Bio Inc.","ticker":"QTTB","cusip":null,"securityClass":"Common Stock par value  $0.0001 per share","eventDate":"2024-12-31","reportingPerson":"Pfizer Inc. (IRS Identification No.: 13-5315170)","reportingCik":null,"personType":"OO","sharesOwned":277777,"percentOfClass":2.3,"filedAt":"2026-02-13","canonicalUrl":"https://xoomar.com/markets/stocks/qttb"}],"updatedAt":"2026-11-03T23:38:28.390Z","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/qttb","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."}}