{"transactions":[{"id":711645,"issuer":{"id":4069,"kind":"organization","name":"IDEAYA Biosciences, Inc.","symbol":"IDYA"},"owners":[{"id":31163,"kind":"person","name":"Ruiz Briseno Andres","position":1,"cik":"0001983118","reported_name":"Ruiz Briseno Andres","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2026-07-09T20:56:53.000Z","date":"2026-07-07","kind":"exercise","planned":true,"acquired":false,"shares":9550,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"100% of the shares subject to the option is fully vested and exercisable."}],"balance_after":19200,"derivative":{"exercise_price":12.86,"expiration_date":"2032-03-01","underlying":"Common Stock","underlying_shares":9550},"source":{"system":"sec-edgar","filing":"0001610717-26-000336","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1676725/000161071726000336/form4.xml","form_type":"4"}},{"id":711644,"issuer":{"id":4069,"kind":"organization","name":"IDEAYA Biosciences, Inc.","symbol":"IDYA"},"owners":[{"id":31163,"kind":"person","name":"Ruiz Briseno Andres","position":1,"cik":"0001983118","reported_name":"Ruiz Briseno Andres","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common Stock","published_at":"2026-07-09T20:56:53.000Z","date":"2026-07-07","kind":"sale","planned":true,"acquired":false,"shares":9550,"price":40.0137,"value":382130.835,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction reported herein was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan, adopted on December 19, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades in prices ranging from $40.00 to $40.10, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."}],"balance_after":26466,"source":{"system":"sec-edgar","filing":"0001610717-26-000336","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1676725/000161071726000336/form4.xml","form_type":"4"}},{"id":711643,"issuer":{"id":4069,"kind":"organization","name":"IDEAYA Biosciences, Inc.","symbol":"IDYA"},"owners":[{"id":31163,"kind":"person","name":"Ruiz Briseno Andres","position":1,"cik":"0001983118","reported_name":"Ruiz Briseno Andres","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common 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from January 1, 2024 (the \"Vesting Commencement Date\"), and 1/48th of the total number of shares vest monthly thereafter, such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date."}],"balance_after":85000,"derivative":{"exercise_price":46.22,"expiration_date":"2034-02-28","underlying":"Common Stock","underlying_shares":85000},"source":{"system":"sec-edgar","filing":"0001610717-24-000119","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1676725/000161071724000119/form4.xml","form_type":"4"}},{"id":1645287,"issuer":{"id":4069,"kind":"organization","name":"IDEAYA Biosciences, Inc.","symbol":"IDYA"},"owners":[{"id":31163,"kind":"person","name":"Ruiz Briseno Andres","position":1,"cik":"0001983118","reported_name":"Ruiz Briseno Andres","relationship":{"officer":true,"officer_title":"See 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The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."}],"balance_after":24531,"source":{"system":"sec-edgar","filing":"0001610717-24-000059","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1676725/000161071724000059/form4.xml","form_type":"4"}},{"id":1671831,"issuer":{"id":4069,"kind":"organization","name":"IDEAYA Biosciences, Inc.","symbol":"IDYA"},"owners":[{"id":31163,"kind":"person","name":"Ruiz Briseno Andres","position":1,"cik":"0001983118","reported_name":"Ruiz Briseno Andres","relationship":{"officer":true,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2024-01-25T00:12:09.000Z","date":"2024-01-22","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":42.0251,"value":84050.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported herein were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan, adopted on March 30, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades in prices ranging from $42.00 to $42.07, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."}],"balance_after":26531,"source":{"system":"sec-edgar","filing":"0001610717-24-000041","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1676725/000161071724000041/form4.xml","form_type":"4"}},{"id":1677509,"issuer":{"id":4069,"kind":"organization","name":"IDEAYA Biosciences, Inc.","symbol":"IDYA"},"owners":[{"id":31163,"kind":"person","name":"Ruiz Briseno Andres","position":1,"cik":"0001983118","reported_name":"Ruiz Briseno Andres","relationship":{"officer":true,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2024-01-17T22:41:04.000Z","date":"2024-01-12","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":38.0128,"value":76025.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported herein were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan, adopted on March 30, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades in prices ranging from $38.00 to $38.02, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."}],"balance_after":28531,"source":{"system":"sec-edgar","filing":"0001610717-24-000029","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1676725/000161071724000029/form4.xml","form_type":"4"}},{"id":1706622,"issuer":{"id":4069,"kind":"organization","name":"IDEAYA Biosciences, Inc.","symbol":"IDYA"},"owners":[{"id":31163,"kind":"person","name":"Ruiz Briseno Andres","position":1,"cik":"0001983118","reported_name":"Ruiz Briseno Andres","relationship":{"officer":true,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-12-18T22:45:13.000Z","date":"2023-12-14","kind":"sale","planned":true,"acquired":false,"shares":328,"price":34.005,"value":11153.64,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported herein were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan, adopted on March 30, 2023."}],"balance_after":30531,"source":{"system":"sec-edgar","filing":"0001610717-23-000403","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1676725/000161071723000403/form4.xml","form_type":"4"}},{"id":1706621,"issuer":{"id":4069,"kind":"organization","name":"IDEAYA Biosciences, Inc.","symbol":"IDYA"},"owners":[{"id":31163,"kind":"person","name":"Ruiz Briseno Andres","position":1,"cik":"0001983118","reported_name":"Ruiz Briseno Andres","relationship":{"officer":true,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-12-18T22:45:13.000Z","date":"2023-12-14","kind":"sale","planned":true,"acquired":false,"shares":1672,"price":34,"value":56848.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported herein were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan, adopted on March 30, 2023."}],"balance_after":30859,"source":{"system":"sec-edgar","filing":"0001610717-23-000403","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1676725/000161071723000403/form4.xml","form_type":"4"}},{"id":1786625,"issuer":{"id":4069,"kind":"organization","name":"IDEAYA Biosciences, Inc.","symbol":"IDYA"},"owners":[{"id":31163,"kind":"person","name":"Ruiz Briseno Andres","position":1,"cik":"0001983118","reported_name":"Ruiz Briseno Andres","relationship":{"officer":true,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2023-09-06T22:36:09.000Z","date":"2023-09-01","kind":"sale","planned":true,"acquired":false,"shares":2000,"price":30.008,"value":60016.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported herein were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan, adopted on March 30, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades in prices ranging from $30.00 to $30.02, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."}],"balance_after":32531,"source":{"system":"sec-edgar","filing":"0001610717-23-000257","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1676725/000161071723000257/form4.xml","form_type":"4"}}]}