{"filing":{"accession":"0001061983-26-000092","url":"/filing/0001061983-26-000092","form_type":"4","issuer_cik":"0001061983","issuer_name":"CYTOKINETICS INC","issuer_name_source":null,"issuer_ticker":"CYTK","issuer_url":"/issuer/0001061983","period_of_report":"2026-09-08","filed_date":"2026-09-08","acceptance_dt":"2026-09-08T16:38:49+00:00","acceptance_label":"2026-09-08 16:38 UTC","ingested_at":"2026-09-09T05:23:16.080847+00:00","ingested_label":"2026-09-09 05:23 UTC","schema_version":null,"source":"Layline","parse_status":"parsed","parse_ok":true,"amends_accession":null,"amends_tier":null,"edgar_url":"https://www.sec.gov/Archives/edgar/data/1061983/0001061983-26-000092-index.htm","day_url":"/filings/2026-09-08"},"owners":[{"owner_cik":"0001551778","owner_name":"Malik Fady Ibraham","url":"/insider/0001551778","anchor":"owner-0001551778","role":"Officer (EVP Research & Development)","officer_title":"EVP Research & Development","is_director":false,"is_officer":true,"is_ten_percent":false,"is_other":false,"filing_anchor":"/filing/0001061983-26-000092#owner-0001551778"}],"line_owners":[{"owner_name":"Malik Fady Ibraham","role":"Officer (EVP Research & Development)"}],"transactions":[{"id":9306197,"accession":"0001061983-26-000092","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001061983-26-000092","line_url":"/filing/0001061983-26-000092#line-1","is_derivative":false,"issuer_cik":"0001061983","issuer_name":"CYTOKINETICS INC","issuer_ticker":"CYTK","issuer_name_source":null,"issuer_url":"/issuer/0001061983","owner_cik":"0001551778","owner_name":"Malik Fady Ibraham","owner_display_name":"Malik Fady Ibraham","owner_url":"/insider/0001551778","role":"Officer (EVP Research & Development)","filing_role":"Officer (EVP Research & Development)","role_mark":"O","role_mark_label":"Officer (EVP Research & Development)","role_mark_generic":"Officer","n_reporting_owners":1,"other_reporting_owners":0,"officer_title":"EVP Research & Development","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3500.0,"shares_display":"3,500","price_per_share":75.46,"price_display":"75.46","price_state":"stated","total_value":264110.0,"total_display":"264,110.00","total_whole":"264,110","shares_owned_after":153902.0,"shares_owned_after_display":"153,902","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-09-08","filed_date":"2026-09-08","scope":"global","indirect_nature":null,"deemed_execution_date":null,"conversion_or_exercise_price":null,"exercise_date":null,"expiration_date":null,"underlying_security_title":null,"underlying_shares":null,"equity_swap_involved":null,"footnote_ids":null}],"n_transactions":1,"line_constants":{"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true},"provenance":{"source_pass":"Layline","parse_status":"parsed","schema_version":null,"retrieved_at":"2026-09-09T05:23:16.080847+00:00","retrieved_label":"2026-09-09 05:23 UTC","primary_document":"https://www.sec.gov/Archives/edgar/data/1061983/0001061983-26-000092-index.htm","accepted_at":"2026-09-08T16:38:49+00:00","accepted_label":"2026-09-08 16:38 UTC"},"related":[],"related_rule":"Other filings held for the same issuer and the same period of report. This is a heuristic match on issuer and period, not the amendment link: any amendment relation this catalog holds is stated above, with the confidence it was derived at.","amendment":{},"canonical_url":"https://ebomi.com/filing/0001061983-26-000092","retrieved_at":"2026-09-09T09:53:07+00:00","coverage":{"filings":1506293,"transactions":4300629,"issuers":17686,"insiders":168555,"first_filed_date":"2003-06-30","last_filed_date":"2026-09-08","last_ingest":"2026-09-09T05:23:16.080847+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"exact","insiders":"exact"},"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.","code":"MIT","code_url":"https://spdx.org/licenses/MIT.html","grant":"CC-BY-4.0","grant_url":"https://creativecommons.org/licenses/by/4.0/","grant_note":"ebomi's own layer, the parsed and normalised records and this presentation, is released under CC BY 4.0. Attribution is the citation_request below. The software is released under the MIT License.","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:10.7910/DVN/VH6GVH","bulk_alternative_url":"https://doi.org/10.7910/DVN/VH6GVH","cite_as":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023). doi:10.1038/s41597-023-02147-6"}}