{"entity":{"type":"insider","cik":"0001744507","url":"/insider/0001744507","json_url":"/insider/0001744507.json","name":"Dubow Adam","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":15,"n_filings":15,"first":"2019-12-09","last":"2026-02-18","span_basis":"filed_date"},"name_variants":[{"name":"Dubow Adam","source":"filing","n_filings":15,"first_seen":"2019-12-09","last_seen":"2026-02-18"}],"transactions":[{"id":6140638,"accession":"0001744507-26-000004","txn_seq":6,"anchor":"line-6","filing_url":"/filing/0001744507-26-000004","line_url":"/filing/0001744507-26-000004#line-6","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (Gen Counsel & Secretary)","role_mark":"O","role_mark_label":"Officer (Gen Counsel & Secretary)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Gen Counsel & Secretary","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6395.0,"shares_display":"6,395","price_per_share":11.6009,"price_display":"11.60","price_state":"stated","total_value":74187.7555,"total_display":"74,187.76","total_whole":"74,188","shares_owned_after":72694.0,"shares_owned_after_display":"72,694","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-02-17","filed_date":"2026-02-18","scope":"insider"},{"id":4150922,"accession":"0001744507-25-000006","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0001744507-25-000006","line_url":"/filing/0001744507-25-000006#line-5","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (Gen Counsel & Secretary)","role_mark":"O","role_mark_label":"Officer (Gen Counsel & Secretary)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Gen Counsel & Secretary","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4319.0,"shares_display":"4,319","price_per_share":8.9147,"price_display":"8.91","price_state":"stated","total_value":38502.5893,"total_display":"38,502.59","total_whole":"38,503","shares_owned_after":62626.0,"shares_owned_after_display":"62,626","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-11-17","filed_date":"2025-11-18","scope":"insider"},{"id":4886656,"accession":"0001415889-25-022382","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0001415889-25-022382","line_url":"/filing/0001415889-25-022382#line-5","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (Gen Counsel & Secretary)","role_mark":"O","role_mark_label":"Officer (Gen Counsel & Secretary)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Gen Counsel & Secretary","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4365.0,"shares_display":"4,365","price_per_share":6.7671,"price_display":"6.77","price_state":"stated","total_value":29538.3915,"total_display":"29,538.39","total_whole":"29,538","shares_owned_after":54858.0,"shares_owned_after_display":"54,858","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-08-18","filed_date":"2025-08-19","scope":"insider"},{"id":4319694,"accession":"0001415889-25-013682","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0001415889-25-013682","line_url":"/filing/0001415889-25-013682#line-5","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (GENERAL COUNSEL)","role_mark":"O","role_mark_label":"Officer (GENERAL COUNSEL)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"GENERAL COUNSEL","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4552.0,"shares_display":"4,552","price_per_share":6.2579,"price_display":"6.26","price_state":"stated","total_value":28485.9608,"total_display":"28,485.96","total_whole":"28,486","shares_owned_after":47136.0,"shares_owned_after_display":"47,136","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-05-16","filed_date":"2025-05-19","scope":"insider"},{"id":4108117,"accession":"0001415889-25-005157","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0001415889-25-005157","line_url":"/filing/0001415889-25-005157#line-5","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (GENERAL COUNSEL)","role_mark":"O","role_mark_label":"Officer (GENERAL COUNSEL)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"GENERAL COUNSEL","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4646.0,"shares_display":"4,646","price_per_share":11.963,"price_display":"11.96","price_state":"stated","total_value":55580.098,"total_display":"55,580.10","total_whole":"55,580","shares_owned_after":39602.0,"shares_owned_after_display":"39,602","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-02-18","filed_date":"2025-02-21","scope":"insider"},{"id":2662719,"accession":"0001415889-24-027229","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001415889-24-027229","line_url":"/filing/0001415889-24-027229#line-4","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (GENERAL COUNSEL)","role_mark":"O","role_mark_label":"Officer (GENERAL COUNSEL)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"GENERAL COUNSEL","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3165.0,"shares_display":"3,165","price_per_share":13.2102,"price_display":"13.21","price_state":"stated","total_value":41810.283,"total_display":"41,810.28","total_whole":"41,810","shares_owned_after":32162.0,"shares_owned_after_display":"32,162","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-11-18","filed_date":"2024-11-19","scope":"insider"},{"id":3000416,"accession":"0001415889-24-021629","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001415889-24-021629","line_url":"/filing/0001415889-24-021629#line-4","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (GENERAL COUNSEL)","role_mark":"O","role_mark_label":"Officer (GENERAL COUNSEL)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"GENERAL COUNSEL","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3202.0,"shares_display":"3,202","price_per_share":13.9991,"price_display":"14.00","price_state":"stated","total_value":44825.1182,"total_display":"44,825.12","total_whole":"44,825","shares_owned_after":26928.0,"shares_owned_after_display":"26,928","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-08-16","filed_date":"2024-08-19","scope":"insider"},{"id":2278563,"accession":"0001415889-24-013614","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001415889-24-013614","line_url":"/filing/0001415889-24-013614#line-4","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (GENERAL COUNSEL)","role_mark":"O","role_mark_label":"Officer (GENERAL COUNSEL)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"GENERAL COUNSEL","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3253.0,"shares_display":"3,253","price_per_share":16.0787,"price_display":"16.08","price_state":"stated","total_value":52304.0111,"total_display":"52,304.01","total_whole":"52,304","shares_owned_after":21731.0,"shares_owned_after_display":"21,731","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-05-16","filed_date":"2024-05-17","scope":"insider"},{"id":2952431,"accession":"0001415889-24-004473","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001415889-24-004473","line_url":"/filing/0001415889-24-004473#line-4","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (GENERAL COUNSEL)","role_mark":"O","role_mark_label":"Officer (GENERAL COUNSEL)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"GENERAL COUNSEL","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3242.0,"shares_display":"3,242","price_per_share":15.2481,"price_display":"15.25","price_state":"stated","total_value":49434.3402,"total_display":"49,434.34","total_whole":"49,434","shares_owned_after":16585.0,"shares_owned_after_display":"16,585","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-02-16","filed_date":"2024-02-20","scope":"insider"},{"id":8023757,"accession":"0001209191-23-055889","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-23-055889","line_url":"/filing/0001209191-23-055889#line-3","is_derivative":false,"issuer_cik":"0001744507","issuer_name":"Day One Biopharmaceuticals, Inc.","issuer_ticker":"DAWN","issuer_name_source":null,"issuer_url":"/issuer/0001744507","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (General Counsel)","role_mark":"O","role_mark_label":"Officer (General Counsel)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"General Counsel","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5313.0,"shares_display":"5,313","price_per_share":11.69,"price_display":"11.69","price_state":"stated","total_value":62108.97,"total_display":"62,108.97","total_whole":"62,109","shares_owned_after":11428.0,"shares_owned_after_display":"11,428","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-11-16","filed_date":"2023-11-17","scope":"insider"},{"id":4504672,"accession":"0000014272-21-000196","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000014272-21-000196","line_url":"/filing/0000014272-21-000196#line-1","is_derivative":false,"issuer_cik":"0000014272","issuer_name":"BRISTOL MYERS SQUIBB CO","issuer_ticker":"BMY","issuer_name_source":null,"issuer_url":"/issuer/0000014272","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (SVP,ChiefCompliance&EthicsOff)","role_mark":"O","role_mark_label":"Officer (SVP,ChiefCompliance&EthicsOff)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP,ChiefCompliance&EthicsOff.","security_title":"Common Stock, $0.10 par value","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2466.0,"shares_display":"2,466","price_per_share":67.9,"price_display":"67.90","price_state":"stated","total_value":167441.4,"total_display":"167,441.40","total_whole":"167,441","shares_owned_after":13777.152,"shares_owned_after_display":"13,777.15","ownership_form":"D","is_10b5_1":null,"transaction_date":"2021-07-30","filed_date":"2021-08-03","scope":"insider"},{"id":5452600,"accession":"0000014272-21-000130","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000014272-21-000130","line_url":"/filing/0000014272-21-000130#line-1","is_derivative":false,"issuer_cik":"0000014272","issuer_name":"BRISTOL MYERS SQUIBB CO","issuer_ticker":"BMY","issuer_name_source":null,"issuer_url":"/issuer/0000014272","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (SVP,ChiefCompliance&EthicsOff)","role_mark":"O","role_mark_label":"Officer (SVP,ChiefCompliance&EthicsOff)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP,ChiefCompliance&EthicsOff.","security_title":"Common Stock, $0.10 par value","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3119.0,"shares_display":"3,119","price_per_share":64.21,"price_display":"64.21","price_state":"stated","total_value":200270.99,"total_display":"200,270.99","total_whole":"200,271","shares_owned_after":16243.152,"shares_owned_after_display":"16,243.15","ownership_form":"D","is_10b5_1":null,"transaction_date":"2021-05-05","filed_date":"2021-05-07","scope":"insider"},{"id":2588994,"accession":"0000014272-20-000286","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000014272-20-000286","line_url":"/filing/0000014272-20-000286#line-1","is_derivative":false,"issuer_cik":"0000014272","issuer_name":"BRISTOL MYERS SQUIBB CO","issuer_ticker":"BMY","issuer_name_source":null,"issuer_url":"/issuer/0000014272","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (SVP,ChiefCompliance&EthicsOff)","role_mark":"O","role_mark_label":"Officer (SVP,ChiefCompliance&EthicsOff)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP,ChiefCompliance&EthicsOff.","security_title":"Common Stock, $0.10 par value","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":900.0,"shares_display":"900","price_per_share":63.39,"price_display":"63.39","price_state":"stated","total_value":57051.0,"total_display":"57,051.00","total_whole":"57,051","shares_owned_after":15186.152,"shares_owned_after_display":"15,186.15","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-11-24","filed_date":"2020-11-25","scope":"insider"},{"id":2038103,"accession":"0000014272-20-000173","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000014272-20-000173","line_url":"/filing/0000014272-20-000173#line-1","is_derivative":false,"issuer_cik":"0000014272","issuer_name":"BRISTOL MYERS SQUIBB CO","issuer_ticker":"BMY","issuer_name_source":null,"issuer_url":"/issuer/0000014272","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (SVP,ChiefCompliance&EthicsOff)","role_mark":"O","role_mark_label":"Officer (SVP,ChiefCompliance&EthicsOff)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"SVP,ChiefCompliance&EthicsOff.","security_title":"Common Stock, $0.10 par value","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3200.0,"shares_display":"3,200","price_per_share":61.01,"price_display":"61.01","price_state":"stated","total_value":195232.0,"total_display":"195,232.00","total_whole":"195,232","shares_owned_after":16086.152,"shares_owned_after_display":"16,086.15","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-05-22","filed_date":"2020-05-26","scope":"insider"},{"id":7906795,"accession":"0000014272-19-000243","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000014272-19-000243","line_url":"/filing/0000014272-19-000243#line-1","is_derivative":false,"issuer_cik":"0000014272","issuer_name":"BRISTOL MYERS SQUIBB CO","issuer_ticker":"BMY","issuer_name_source":null,"issuer_url":"/issuer/0000014272","owner_cik":"0001744507","owner_name":"Dubow Adam","owner_display_name":"Dubow Adam","owner_url":"/insider/0001744507","role":"Officer (Chief Compliance & Ethics Offi)","role_mark":"O","role_mark_label":"Officer (Chief Compliance & Ethics Offi)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Compliance & Ethics Offi","security_title":"Common Stock, $0.10 par value","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1740.0,"shares_display":"1,740","price_per_share":58.81,"price_display":"58.81","price_state":"stated","total_value":102329.4,"total_display":"102,329.40","total_whole":"102,329","shares_owned_after":15749.152,"shares_owned_after_display":"15,749.15","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-12-05","filed_date":"2019-12-09","scope":"insider"}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":15,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":0,"open_market":true},{"code":"S","label":"Open-market sale","n":15,"open_market":true},{"code":"M","label":"Option exercise","n":0,"open_market":false},{"code":"A","label":"Grant or award","n":0,"open_market":false},{"code":"F","label":"Tax withholding","n":0,"open_market":false},{"code":"D","label":"Disposition to the issuer","n":0,"open_market":false},{"code":"X","label":"In-the-money option exercise","n":0,"open_market":false}],"total":15},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001845337","name":"Day One Biopharmaceuticals, Inc.","url":"/issuer/0001845337","role":"Officer (Gen Counsel & Secretary)","n_filings":10,"first_seen":"2023-11-17","last_seen":"2026-02-18"},{"type":"issuer","type_label":"ISSUER","cik":"0000014272","name":"BRISTOL MYERS SQUIBB CO","url":"/issuer/0000014272","role":"Officer (SVP,ChiefCompliance&EthicsOff)","n_filings":5,"first_seen":"2019-12-09","last_seen":"2021-08-03"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001744507","retrieved_at":"2026-08-23T01:39:24+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-21","last_ingest":"2026-08-22T05:23:40.159918+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}