{"transactions":[{"id":4632977,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Sr. Executive Vice President"}}],"security":"Common Stock","published_at":"2026-09-30T21:52:40.000Z","date":"2026-09-29","kind":"sale","planned":false,"acquired":false,"shares":800.638,"price":915.93,"value":733328.36334,"ownership":{"direct":true},"balance_after":7912,"source":{"system":"sec-edgar","filing":"0000909832-26-000090","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983226000090/form4.xml","form_type":"4"}},{"id":4617245,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2026-09-14T21:20:20.000Z","date":"2026-09-10","kind":"tax_withholding","planned":false,"acquired":false,"shares":1654.363,"price":902.38,"value":1492864.08394,"ownership":{"direct":true},"balance_after":8712.638,"source":{"system":"sec-edgar","filing":"0000909832-26-000070","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1928633/000090983226000070/form4.xml","form_type":"4"}},{"id":4617244,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2026-09-14T21:20:20.000Z","date":"2026-09-10","kind":"grant","planned":false,"acquired":true,"shares":4552,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant was initially made on October 22, 2025, subject to performance conditions concerning fiscal 2026, which have been deemed satisfied by the Compensation Committee of the Board of Directors. The earned awards vest 20% on the first anniversary of the grant date and an additional 20% vest over each of the ensuing four years based on continued employment with the Company. In addition, under the 2019 Incentive Plan, employees are eligible for accelerated vesting upon the anniversary of their 25th, 30th and 35th years of service."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Not applicable. Grant of Restricted Stock Units."}],"balance_after":10367.001,"source":{"system":"sec-edgar","filing":"0000909832-26-000070","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1928633/000090983226000070/form4.xml","form_type":"4"}},{"id":11053,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2026-04-01T22:13:26.000Z","date":"2026-04-01","kind":"sale","planned":false,"acquired":false,"shares":700,"price":993,"value":695100.0,"ownership":{"direct":true},"balance_after":5815.001,"source":{"system":"sec-edgar","filing":"0000909832-26-000039","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983226000039/form4.xml","form_type":"4"}},{"id":17904,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2025-10-24T23:17:55.000Z","date":"2025-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":705.75,"price":944.68,"value":666707.91,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025."}],"balance_after":6515.004,"source":{"system":"sec-edgar","filing":"0000909832-25-000130","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983225000130/form4.xml","form_type":"4"}},{"id":17903,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2025-10-24T23:17:55.000Z","date":"2025-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":901.26,"price":944.68,"value":851402.2968,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025."}],"balance_after":7220.754,"source":{"system":"sec-edgar","filing":"0000909832-25-000130","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983225000130/form4.xml","form_type":"4"}},{"id":17902,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2025-10-24T23:17:55.000Z","date":"2025-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":758.28,"price":944.68,"value":716331.9504,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025."}],"balance_after":8122.014,"source":{"system":"sec-edgar","filing":"0000909832-25-000130","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983225000130/form4.xml","form_type":"4"}},{"id":17901,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2025-10-24T23:17:55.000Z","date":"2025-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":247.66,"price":944.68,"value":233959.4488,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025."}],"balance_after":8880.294,"source":{"system":"sec-edgar","filing":"0000909832-25-000130","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983225000130/form4.xml","form_type":"4"}},{"id":17900,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2025-10-24T23:17:55.000Z","date":"2025-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":155.74,"price":944.68,"value":147124.4632,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025."}],"balance_after":9127.954,"source":{"system":"sec-edgar","filing":"0000909832-25-000130","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983225000130/form4.xml","form_type":"4"}},{"id":19050,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2025-09-30T20:54:13.000Z","date":"2025-09-29","kind":"sale","planned":false,"acquired":false,"shares":1540,"price":910.02,"value":1401430.8,"ownership":{"direct":true},"balance_after":9283.694,"source":{"system":"sec-edgar","filing":"0000909832-25-000095","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983225000095/form4.xml","form_type":"4"}},{"id":19842,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2025-09-12T21:40:31.000Z","date":"2025-09-10","kind":"tax_withholding","planned":false,"acquired":false,"shares":1271.078,"price":956.29,"value":1215519.18062,"ownership":{"direct":true},"balance_after":10823.694,"source":{"system":"sec-edgar","filing":"0000909832-25-000076","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983225000076/form4.xml","form_type":"4"}},{"id":19841,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2025-09-12T21:40:31.000Z","date":"2025-09-10","kind":"grant","planned":false,"acquired":true,"shares":4219,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant was initially made on October 22, 2024, subject to performance conditions concerning fiscal 2025, which have been deemed satisfied by the Compensation Committee of the Board of Directors. The earned awards vest 20% on the first anniversary of the grant date and an additional 20% vest over each of the ensuing four years based on continued employment with the Company. In addition, under the 2019 Incentive Plan, employees are eligible for accelerated vesting upon the anniversary of their 25th, 30th and 35th years of service."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Not applicable. Grant of Restricted Stock Units."}],"balance_after":12094.772,"source":{"system":"sec-edgar","filing":"0000909832-25-000076","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000090983225000076/form4.xml","form_type":"4"}},{"id":25568,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2025-03-20T20:18:34.000Z","date":"2025-03-18","kind":"sale","planned":false,"acquired":false,"shares":850,"price":900.2501,"value":765212.585,"ownership":{"direct":true},"balance_after":7875.772,"source":{"system":"sec-edgar","filing":"0001127602-25-010138","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000112760225010138/form4.xml","form_type":"4"}},{"id":34490,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-10-24T23:42:48.000Z","date":"2024-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":227.522,"price":893.49,"value":203288.63178,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2024."}],"balance_after":8725.772,"source":{"system":"sec-edgar","filing":"0001127602-24-025944","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/909832/000112760224025944/form4.xml","form_type":"4"}},{"id":34489,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-10-24T23:42:48.000Z","date":"2024-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":255.382,"price":893.49,"value":228181.26318,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2024."}],"balance_after":8953.294,"source":{"system":"sec-edgar","filing":"0001127602-24-025944","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/909832/000112760224025944/form4.xml","form_type":"4"}},{"id":34488,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-10-24T23:42:48.000Z","date":"2024-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":125.37,"price":893.49,"value":112016.8413,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2024."}],"balance_after":9208.676,"source":{"system":"sec-edgar","filing":"0001127602-24-025944","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/909832/000112760224025944/form4.xml","form_type":"4"}},{"id":34487,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-10-24T23:42:48.000Z","date":"2024-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":157.357,"price":893.49,"value":140596.90593,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2024."}],"balance_after":9334.046,"source":{"system":"sec-edgar","filing":"0001127602-24-025944","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/909832/000112760224025944/form4.xml","form_type":"4"}},{"id":34486,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-10-24T23:42:48.000Z","date":"2024-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":190.892,"price":893.49,"value":170560.09308,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2024."}],"balance_after":9491.403,"source":{"system":"sec-edgar","filing":"0001127602-24-025944","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000112760224025944/form4.xml","form_type":"4"}},{"id":35052,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-10-02T20:40:02.000Z","date":"2024-09-30","kind":"sale","planned":false,"acquired":false,"shares":1700,"price":883.35,"value":1501695.0,"ownership":{"direct":true},"balance_after":9682.295,"source":{"system":"sec-edgar","filing":"0001127602-24-024922","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000112760224024922/form4.xml","form_type":"4"}},{"id":35395,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-09-18T21:55:07.000Z","date":"2024-09-16","kind":"tax_withholding","planned":false,"acquired":false,"shares":2111.028,"price":907.87,"value":1916538.99036,"ownership":{"direct":true},"balance_after":11382.295,"source":{"system":"sec-edgar","filing":"0001127602-24-024166","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/909832/000112760224024166/form4.xml","form_type":"4"}},{"id":35394,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-09-18T21:55:07.000Z","date":"2024-09-16","kind":"grant","planned":false,"acquired":true,"shares":6737.124,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant was initially made on October 22, 2023, subject to performance conditions concerning fiscal 2024, which have been deemed satisfied by the Compensation Committee of the Board of Directors. The earned awards vest 20% on the first anniversary of the grant date and an additional 20% vest over each of the ensuing four years based on continued employment with the Company. In addition, under the 2019 Incentive Plan, employees are eligible for accelerated vesting upon the anniversary of their 25th, 30th and 35th years of service."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Not applicable. Grant of Restricted Stock Units."}],"balance_after":13493.323,"source":{"system":"sec-edgar","filing":"0001127602-24-024166","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000112760224024166/form4.xml","form_type":"4"}},{"id":45268,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-02-22T22:08:30.000Z","date":"2024-01-12","kind":"grant","planned":false,"acquired":true,"shares":66.384,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On January 12, 2024, the reporting person filed a Form 4 reporting the acquisition of 30.744 additional restricted stock units (\"RSUs\") resulting from the upward adjustment of outstanding unvested RSUs by a factor of 1.018, in connection with the special cash dividend payable by the issuer on January 12, 2024. Instead, as reported in this amendment, the correct number of additional RSUs was 66.384. The adjustment in connection with the special dividend was required under applicable plan documents. The additional RSUs are subject to the same vesting schedules as the original unvested RSUs to which they relate."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Not applicable. Grant of Restricted Stock Units."}],"balance_after":6756.199,"source":{"system":"sec-edgar","filing":"0001209191-24-003822","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919124003822/doc4a.xml","form_type":"4/A","original_submission_date":"2024-01-12"}},{"id":48573,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-01-16T21:20:58.000Z","date":"2024-01-16","kind":"sale","planned":false,"acquired":false,"shares":740,"price":683.4991,"value":505789.334,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price shown is a weighted average price for shares purchased in multiple transactions; the purchase prices ranged from $683.49 to $683.525 per share.  The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares purchased at each price within the range."}],"balance_after":6720.559,"source":{"system":"sec-edgar","filing":"0001209191-24-001621","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919124001621/doc4.xml","form_type":"4"}},{"id":48700,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2024-01-12T22:17:39.000Z","date":"2024-01-12","kind":"grant","planned":false,"acquired":true,"shares":30.744,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents additional restricted stock units (\"RSUs\") resulting from the upward adjustment of outstanding unvested RSUs by a factor of 1.018, in connection with the special cash dividend payable by the issuer on January 12, 2024. The adjustment was required under applicable plan documents. The additional RSUs reported are subject to the same vesting schedules as the original unvested RSUs to which they relate."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Not applicable. Grant of Restricted Stock Units."}],"balance_after":7460.559,"source":{"system":"sec-edgar","filing":"0001209191-24-001552","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919124001552/doc4.xml","form_type":"4"}},{"id":51851,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2023-10-24T23:32:18.000Z","date":"2023-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":120.48,"price":552.93,"value":66617.0064,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 20, 2023."}],"balance_after":7429.815,"source":{"system":"sec-edgar","filing":"0001209191-23-053504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919123053504/doc4.xml","form_type":"4"}},{"id":51850,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2023-10-24T23:32:18.000Z","date":"2023-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":151.715,"price":552.93,"value":83887.77495,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 20, 2023."}],"balance_after":7550.295,"source":{"system":"sec-edgar","filing":"0001209191-23-053504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919123053504/doc4.xml","form_type":"4"}},{"id":51849,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2023-10-24T23:32:18.000Z","date":"2023-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":183.942,"price":552.93,"value":101707.05006,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 20, 2023."}],"balance_after":7702.01,"source":{"system":"sec-edgar","filing":"0001209191-23-053504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919123053504/doc4.xml","form_type":"4"}},{"id":51848,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2023-10-24T23:32:18.000Z","date":"2023-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":231.043,"price":552.93,"value":127750.60599,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 20, 2023."}],"balance_after":7885.952,"source":{"system":"sec-edgar","filing":"0001209191-23-053504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919123053504/doc4.xml","form_type":"4"}},{"id":51847,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2023-10-24T23:32:18.000Z","date":"2023-10-22","kind":"tax_withholding","planned":false,"acquired":false,"shares":245.917,"price":552.93,"value":135974.88681,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 20, 2023."}],"balance_after":8116.995,"source":{"system":"sec-edgar","filing":"0001209191-23-053504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919123053504/doc4.xml","form_type":"4"}},{"id":52138,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2023-10-11T21:26:31.000Z","date":"2023-10-06","kind":"sale","planned":false,"acquired":false,"shares":1200,"price":562.6418,"value":675170.16,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price shown is a weighted average sale price for shares sold in multiple transactions; the sale prices ranged from $562.454 to $563.07 per share.  The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range."}],"balance_after":8362.912,"source":{"system":"sec-edgar","filing":"0001209191-23-052652","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919123052652/doc4.xml","form_type":"4"}},{"id":52570,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2023-09-19T22:40:59.000Z","date":"2023-09-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":2186.088,"price":556.36,"value":1216251.91968,"ownership":{"direct":true},"balance_after":9562.912,"source":{"system":"sec-edgar","filing":"0001209191-23-050083","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919123050083/doc4.xml","form_type":"4"}},{"id":52569,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2023-09-19T22:40:59.000Z","date":"2023-09-15","kind":"grant","planned":false,"acquired":true,"shares":7429,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant was initially made on October 22, 2022 subject to performance conditions concerning fiscal 2023, which have been deemed satisfied by the Compensation Committee of the Board of Directors. The earned awards vest 20% on the first anniversary of the grant date and an additional 20% vest over each of the ensuing four years based on continued employment with the Company. In addition, under the 2019 Incentive Plan, long term employees are eligible for accelerated vesting upon the anniversary of their 25th, 30th and 35th years of service."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Not applicable. Grant of Restricted Stock Units."}],"balance_after":11749,"source":{"system":"sec-edgar","filing":"0001209191-23-050083","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919123050083/doc4.xml","form_type":"4"}},{"id":56664,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2023-04-13T21:49:57.000Z","date":"2023-04-11","kind":"sale","planned":false,"acquired":false,"shares":600,"price":497.3465,"value":298407.9,"ownership":{"direct":true},"balance_after":4320,"source":{"system":"sec-edgar","filing":"0001209191-23-024245","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919123024245/doc4.xml","form_type":"4"}},{"id":62400,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2022-10-25T20:52:54.000Z","date":"2022-10-22","kind":"tax_withholding","acquired":false,"shares":85,"price":478.18,"value":40645.3,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on NASDAQ on October 21, 2022."}],"balance_after":4920,"source":{"system":"sec-edgar","filing":"0001209191-22-054539","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919122054539/doc4.xml","form_type":"4"}},{"id":62399,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2022-10-25T20:52:54.000Z","date":"2022-10-22","kind":"tax_withholding","acquired":false,"shares":106,"price":478.18,"value":50687.08,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on NASDAQ on October 21, 2022."}],"balance_after":5005,"source":{"system":"sec-edgar","filing":"0001209191-22-054539","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919122054539/doc4.xml","form_type":"4"}},{"id":62398,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2022-10-25T20:52:54.000Z","date":"2022-10-22","kind":"tax_withholding","acquired":false,"shares":129,"price":478.18,"value":61685.22,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on NASDAQ on October 21, 2022."}],"balance_after":5111,"source":{"system":"sec-edgar","filing":"0001209191-22-054539","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919122054539/doc4.xml","form_type":"4"}},{"id":62397,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2022-10-25T20:52:54.000Z","date":"2022-10-22","kind":"tax_withholding","acquired":false,"shares":162,"price":478.18,"value":77465.16,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on NASDAQ on October 21, 2022."}],"balance_after":5240,"source":{"system":"sec-edgar","filing":"0001209191-22-054539","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919122054539/doc4.xml","form_type":"4"}},{"id":62396,"issuer":{"id":2803,"kind":"organization","name":"COSTCO WHOLESALE CORP /NEW","symbol":"COST"},"owners":[{"id":10968,"kind":"person","name":"Frates Caton","position":1,"cik":"0001928633","reported_name":"Frates Caton","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2022-10-25T20:52:54.000Z","date":"2022-10-22","kind":"tax_withholding","acquired":false,"shares":224,"price":478.18,"value":107112.32,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on NASDAQ on October 21, 2022."}],"balance_after":5402,"source":{"system":"sec-edgar","filing":"0001209191-22-054539","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/909832/000120919122054539/doc4.xml","form_type":"4"}}]}