{"transactions":[{"id":4637422,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-10-07T22:36:21.000Z","date":"2026-10-05","kind":"sale","planned":false,"acquired":false,"shares":23619,"price":146.39,"value":3457585.41,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents automatic 'sell-to-cover' transactions by an executing broker to cover withholding taxes upon award vesting and share delivery. The price reported in Column 4 is a weighted average price calculated by the broker executing these transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":225364,"source":{"system":"sec-edgar","filing":"0001628280-26-065364","document":"wk-form4_1791412579.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026065364/wk-form4_1791412579.xml","form_type":"4"}},{"id":4625504,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-09-23T20:37:11.000Z","date":"2026-09-21","kind":"sale","planned":true,"acquired":false,"shares":521,"price":95,"value":49495.0,"ownership":{"direct":true},"footnotes":[{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"The sale transactions reported in this Form 4 are made pursuant to a Rule 10b5-1 trading plan adopted on December 11, 2025"}],"balance_after":248983,"source":{"system":"sec-edgar","filing":"0001628280-26-063234","document":"wk-form4_1790195828.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026063234/wk-form4_1790195828.xml","form_type":"4"}},{"id":4625503,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-09-23T20:37:11.000Z","date":"2026-09-21","kind":"sale","planned":true,"acquired":false,"shares":1800,"price":93.9156,"value":169048.08,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.89 to $94.33 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price within the range set forth in this footnote"},{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"The sale transactions reported in this Form 4 are made pursuant to a Rule 10b5-1 trading plan adopted on December 11, 2025"}],"balance_after":249504,"source":{"system":"sec-edgar","filing":"0001628280-26-063234","document":"wk-form4_1790195828.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026063234/wk-form4_1790195828.xml","form_type":"4"}},{"id":4625502,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-09-23T20:37:11.000Z","date":"2026-09-21","kind":"sale","planned":true,"acquired":false,"shares":1779,"price":92.2631,"value":164136.0549,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.19 to $93.00 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price within the range set forth in this footnote"},{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"The sale transactions reported in this Form 4 are made pursuant to a Rule 10b5-1 trading plan adopted on December 11, 2025"}],"balance_after":251304,"source":{"system":"sec-edgar","filing":"0001628280-26-063234","document":"wk-form4_1790195828.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026063234/wk-form4_1790195828.xml","form_type":"4"}},{"id":672135,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-09-01T00:07:21.000Z","date":"2026-08-27","kind":"sale","planned":true,"acquired":false,"shares":7900,"price":85.01,"value":671579.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.00 to $85.11 inclusive.  The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price within the range set forth in this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 314 shares acquired under the Company's ESPP purchased on May 14, 2026."}],"balance_after":253083,"source":{"system":"sec-edgar","filing":"0001628280-26-059681","document":"wk-form4_1788221238.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026059681/wk-form4_1788221238.xml","form_type":"4"}},{"id":811671,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-04-09T22:58:28.000Z","date":"2026-04-08","kind":"sale","planned":false,"acquired":false,"shares":45806,"price":49.9176,"value":2286525.5856,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents automatic 'sell-to-cover' transactions by an executing broker to cover withholding taxes upon award vesting and share delivery. The price reported in Column 4 is a weighted average price calculated by the broker executing these transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":260669,"source":{"system":"sec-edgar","filing":"0001628280-26-024551","document":"wk-form4_1775775505.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026024551/wk-form4_1775775505.xml","form_type":"4"}},{"id":853928,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-03-10T01:36:07.000Z","date":"2026-03-09","kind":"sale","planned":false,"acquired":false,"shares":85,"price":46.74,"value":3972.9,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents automatic 'sell-to-cover' transactions by an executing broker to cover withholding taxes upon award vesting and share delivery. The price reported in Column 4 is a weighted average price calculated by the broker executing these transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":306475,"source":{"system":"sec-edgar","filing":"0001628280-26-016218","document":"wk-form4_1773106564.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026016218/wk-form4_1773106564.xml","form_type":"4"}},{"id":853927,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-03-10T01:36:07.000Z","date":"2026-03-09","kind":"sale","planned":false,"acquired":false,"shares":2407,"price":47.93,"value":115367.51,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents automatic 'sell-to-cover' transactions by an executing broker to cover withholding taxes upon award vesting and share delivery. The price reported in Column 4 is a weighted average price calculated by the broker executing these transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":306560,"source":{"system":"sec-edgar","filing":"0001628280-26-016218","document":"wk-form4_1773106564.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026016218/wk-form4_1773106564.xml","form_type":"4"}},{"id":853926,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-03-10T01:36:07.000Z","date":"2026-03-05","kind":"sale","planned":false,"acquired":false,"shares":655,"price":53.01,"value":34721.55,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents automatic 'sell-to-cover' transactions by an executing broker to cover withholding taxes upon award vesting and share delivery. The price reported in Column 4 is a weighted average price calculated by the broker executing these transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":308967,"source":{"system":"sec-edgar","filing":"0001628280-26-016218","document":"wk-form4_1773106564.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026016218/wk-form4_1773106564.xml","form_type":"4"}},{"id":868740,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-03-04T01:45:54.000Z","date":"2026-03-02","kind":"sale","planned":false,"acquired":false,"shares":438,"price":51.8611,"value":22715.1618,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents automatic sell-to-cover transactions by an executing broker to cover withholding taxes upon award vesting and share delivery. The price reported in Column 4 is a weighted average price calculated by the broker executing these transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":309622,"source":{"system":"sec-edgar","filing":"0001628280-26-014331","document":"wk-form4_1772588751.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026014331/wk-form4_1772588751.xml","form_type":"4"}},{"id":868739,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-03-04T01:45:54.000Z","date":"2026-03-02","kind":"sale","planned":false,"acquired":false,"shares":9135,"price":50.0853,"value":457529.2155,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents automatic sell-to-cover transactions by an executing broker to cover withholding taxes upon award vesting and share delivery. The price reported in Column 4 is a weighted average price calculated by the broker executing these transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":310060,"source":{"system":"sec-edgar","filing":"0001628280-26-014331","document":"wk-form4_1772588751.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026014331/wk-form4_1772588751.xml","form_type":"4"}},{"id":868738,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-03-04T01:45:54.000Z","date":"2026-02-27","kind":"grant","planned":false,"acquired":true,"shares":60118,"price":53.23,"value":3200081.14,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents an award of 60,118 restricted stock units (\"RSUs\") which will vest in four substantially equal annual installments, beginning on February 28, 2027, subject to the awardee's continuing to be a service provider on such date. Each RSU represents the right to receive, at settlement, one share of common stock. The RSUs will be settled in common stock upon vesting."}],"balance_after":319195,"source":{"system":"sec-edgar","filing":"0001628280-26-014331","document":"wk-form4_1772588751.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828026014331/wk-form4_1772588751.xml","form_type":"4"}},{"id":979261,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-12-05T21:12:24.000Z","date":"2025-12-03","kind":"sale","planned":false,"acquired":false,"shares":25000,"price":99.1527,"value":2478817.5,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.00 to $99.76 inclusive.  The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price within the range set forth in this footnote."}],"balance_after":259077,"source":{"system":"sec-edgar","filing":"0001628280-25-055598","document":"wk-form4_1764969141.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828025055598/wk-form4_1764969141.xml","form_type":"4"}},{"id":994168,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-11-19T21:08:16.000Z","date":"2025-11-17","kind":"sale","planned":false,"acquired":false,"shares":1697,"price":79.2,"value":134402.4,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents automatic sell-to-cover transactions by an executing broker to cover withholding taxes upon award vesting and share delivery. The price reported in Column 4 is a weighted average price calculated by the broker executing these transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 641 shares acquired under the Company's ESPP purchased on November 14, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Adjusted to reduce the reported holdings by 10 shares of Common Stock to correct an inadvertent error in Column 4 of the Form 4 filed on August 19, 2025."}],"balance_after":284077,"source":{"system":"sec-edgar","filing":"0001628280-25-053171","document":"wk-form4_1763586493.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828025053171/wk-form4_1763586493.xml","form_type":"4"}},{"id":1060479,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-08-20T20:23:02.000Z","date":"2025-08-19","kind":"sale","planned":false,"acquired":false,"shares":877,"price":32.02,"value":28081.54,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price calculated by the broker executing the sell-to-cover transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":285143,"source":{"system":"sec-edgar","filing":"0001699031-25-000173","document":"wk-form4_1755721377.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000169903125000173/wk-form4_1755721377.xml","form_type":"4"}},{"id":1085715,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-07-17T21:44:21.000Z","date":"2025-07-15","kind":"sale","planned":true,"acquired":false,"shares":8000,"price":38.93,"value":311440.0,"ownership":{"direct":true},"footnotes":[{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"The sale transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on March 13, 2025."}],"balance_after":286020,"source":{"system":"sec-edgar","filing":"0001699031-25-000152","document":"wk-form4_1752788654.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000169903125000152/wk-form4_1752788654.xml","form_type":"4"}},{"id":1159603,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-05-06T00:46:25.000Z","date":"2025-05-02","kind":"sale","planned":false,"acquired":false,"shares":41150,"price":33.93,"value":1396219.5,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price calculated by the broker executing the sell-to-cover transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":294020,"source":{"system":"sec-edgar","filing":"0001699031-25-000101","document":"wk-form4_1746492379.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000169903125000101/wk-form4_1746492379.xml","form_type":"4"}},{"id":1180278,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-04-03T20:45:06.000Z","date":"2025-03-11","kind":"sale","planned":false,"acquired":false,"shares":1816,"price":31.2,"value":56659.2,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This amendment is filed to correct the date of the transaction reported in the original Form 4."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price calculated by the broker executing the sell-to-cover transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":335170,"source":{"system":"sec-edgar","filing":"0001699031-25-000068","document":"wk-form4a_1743713099.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000169903125000068/wk-form4a_1743713099.xml","form_type":"4/A","original_submission_date":"2025-03-12"}},{"id":1210192,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-03-12T20:04:23.000Z","date":"2025-03-07","kind":"sale","planned":false,"acquired":false,"shares":1816,"price":31.2,"value":56659.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price calculated by the broker executing the sell-to-cover transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":335170,"source":{"system":"sec-edgar","filing":"0001699031-25-000055","document":"wk-form4_1741809857.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000169903125000055/wk-form4_1741809857.xml","form_type":"4"}},{"id":1220058,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-03-06T21:30:20.000Z","date":"2025-03-05","kind":"sale","planned":false,"acquired":false,"shares":521,"price":41.51,"value":21626.71,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price calculated by the broker executing the sell-to-cover transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":336986,"source":{"system":"sec-edgar","filing":"0001699031-25-000053","document":"wk-form4_1741296612.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000169903125000053/wk-form4_1741296612.xml","form_type":"4"}},{"id":1285330,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-02-04T22:21:58.000Z","date":"2025-02-03","kind":"grant","planned":false,"acquired":true,"shares":69230,"price":28.84,"value":1996593.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents an award of 69,230 restricted stock units (\"RSUs\") which will vest in three substantially equal annual installments, beginning on February 28, 2026, subject to the awardee's continued service through such date. Each RSU represents the right to receive, at settlement, one share of common stock. The RSUs will be settled in common stock upon vesting."}],"balance_after":337507,"source":{"system":"sec-edgar","filing":"0001699031-25-000012","document":"wk-form4_1738707709.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000169903125000012/wk-form4_1738707709.xml","form_type":"4"}},{"id":1359781,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2024-11-19T21:06:12.000Z","date":"2024-11-18","kind":"sale","planned":false,"acquired":false,"shares":30452,"price":14.02,"value":426937.04,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price calculated by the broker executing the sell-to-cover transactions. These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":268277,"source":{"system":"sec-edgar","filing":"0001628280-24-048416","document":"wk-form4_1732050366.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828024048416/wk-form4_1732050366.xml","form_type":"4"}},{"id":1390289,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2024-10-08T00:34:32.000Z","date":"2024-10-03","kind":"grant","planned":false,"acquired":true,"shares":45840,"price":12.57,"value":576208.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents an award of 45,840 RSUs which will vest and become payable on October 3, 2026, subject to the awardee's continuing to be a service provider on such date."}],"balance_after":298729,"source":{"system":"sec-edgar","filing":"0001628280-24-042469","document":"wk-form4_1728347666.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828024042469/wk-form4_1728347666.xml","form_type":"4"}},{"id":1390288,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2024-10-08T00:34:32.000Z","date":"2024-10-03","kind":"grant","planned":false,"acquired":true,"shares":79460,"price":12.57,"value":998812.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents an award of 79,460 restricted stock units (\"RSUs\") which will vest and become payable on April 3, 2026, subject to the awardee's continuing to be a service provider on such date. Each RSU represents the right to receive, at settlement, one share of common stock. The RSUs will be settled in common stock upon vesting."}],"balance_after":252889,"source":{"system":"sec-edgar","filing":"0001628280-24-042469","document":"wk-form4_1728347666.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828024042469/wk-form4_1728347666.xml","form_type":"4"}},{"id":1425719,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2024-08-22T20:02:27.000Z","date":"2024-08-21","kind":"sale","planned":false,"acquired":false,"shares":15641,"price":16.2471,"value":254120.8911,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price calculated by the broker executing the sell-to-cover transactions.  These shares were sold as part of a block trade in multiple transactions, and the Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price."}],"balance_after":173429,"source":{"system":"sec-edgar","filing":"0001628280-24-038211","document":"wk-form4_1724356940.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828024038211/wk-form4_1724356940.xml","form_type":"4"}},{"id":1463567,"issuer":{"id":4122,"kind":"organization","name":"GRAIL, Inc.","symbol":"GRAL"},"owners":[{"id":18452,"kind":"person","name":"Freidin Aaron","position":1,"cik":"0002024196","reported_name":"Freidin Aaron","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2024-07-02T20:52:50.000Z","date":"2024-06-28","kind":"grant","planned":false,"acquired":true,"shares":187636,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"On June 24, 2024, Illumina, Inc. (Illumina) completed a pro rata spin-off distribution (the Distribution) of 85.5% of the outstanding shares of the Issuer to the holders of record of Illumina common stock as of June 13, 2024 (the Record Date). In connection with the Distribution, pursuant to the terms of the Employee Matters Agreement, dated as of June 21, 2024, by and between Illumina and the Issuer (the EMA), all outstanding cash-based equity appreciation incentive awards held by the Reporting Person were equitably adjusted and converted into equity-based awards with respect to the common stock of the Issuer, with such equitable adjustments determined based on the value of the award at the time of the Distribution (determined in accordance with the EMA) compared to the market capitalization of the Issuer for the four trading days following the Distribution."},{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the grant of restricted stock units (RSUs) of the Issuer upon the conversion of cash-based equity appreciation incentive awards held by the Reporting Person as of the Distribution in connection with the Distribution, in accordance with the terms of the EMA. The RSUs were granted pursuant to the GRAIL, Inc. 2024 Incentive Award Plan in a manner intended to preserve the aggregate intrinsic value of the underlying cash-based equity appreciation incentive awards, on generally the same terms and conditions as applied to the cash-based equity appreciation incentive awards prior to the Distribution (including vesting and payment schedules)."},{"field":"shares","element":"transactionShares","label":"F3","text":"Includes (i) 29,219 RSUs that vest on August 18, 2024, (ii) 56,899 RSUs that vest on November 16, 2024 (iii)1,260 RSUs that vest on March 4, 2025, (iv) 4,668 RSUs that vest on March 6, 2025, (v) 79,966 RSUs that vest on April 30, 2025, (vi) 1,703 RSUs that vest on August 18, 2025, (vii) 3,322 RSUs that vest on November 16, 2025, (viii) 1,261 RSUs that vest on March 4, 2026, (ix) 4,669 RSUs that vest on March 6, 2026 and (x) 4,669 RSUs that vest on March 6, 2027. Each RSU represents the right to receive, at settlement upon vesting, one share of common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes 1,434 shares of the common stock of the Issuer received in connection with the Distribution in respect of Illumina common stock held as of the Record Date."}],"balance_after":189070,"source":{"system":"sec-edgar","filing":"0001628280-24-030867","document":"wk-form4_1719953564.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2024196/000162828024030867/wk-form4_1719953564.xml","form_type":"4"}}]}