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Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The shares with respect to this transaction were sold in multiple trades at prices ranging from $40.46 to $42.99; the price reported above reflects the weighted average price.  The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":379733,"source":{"system":"sec-edgar","filing":"0001209191-21-015219","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/21535/000120919121015219/doc4.xml","form_type":"4"}},{"id":2828746,"issuer":{"id":4478,"kind":"organization","name":"COHU INC","symbol":"COHU"},"owners":[{"id":44547,"kind":"person","name":"DONAHUE JAMES A","position":1,"cik":"0001222030","reported_name":"DONAHUE JAMES A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-03-01T21:24:40.000Z","date":"2021-02-26","kind":"exercise","acquired":true,"shares":20000,"price":9.44,"value":188800.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was made pursuant to a Rule 10(b)5-1 trading plan adopted by Mr. Donahue on November 20, 2020 (the \"Plan\").  Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."}],"balance_after":387056,"source":{"system":"sec-edgar","filing":"0001209191-21-015219","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/21535/000120919121015219/doc4.xml","form_type":"4"}},{"id":2828745,"issuer":{"id":4478,"kind":"organization","name":"COHU INC","symbol":"COHU"},"owners":[{"id":44547,"kind":"person","name":"DONAHUE JAMES A","position":1,"cik":"0001222030","reported_name":"DONAHUE JAMES A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-03-01T21:24:40.000Z","date":"2021-02-25","kind":"sale","acquired":false,"shares":20000,"price":45.22,"value":904400.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was made pursuant to a Rule 10(b)5-1 trading plan adopted by Mr. Donahue on November 20, 2020 (the \"Plan\").  Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The shares with respect to this transaction were sold in multiple trades at prices ranging from $43.38 to $47.57; the price reported above reflects the weighted average price.  The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":367056,"source":{"system":"sec-edgar","filing":"0001209191-21-015219","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/21535/000120919121015219/doc4.xml","form_type":"4"}},{"id":2828744,"issuer":{"id":4478,"kind":"organization","name":"COHU INC","symbol":"COHU"},"owners":[{"id":44547,"kind":"person","name":"DONAHUE JAMES A","position":1,"cik":"0001222030","reported_name":"DONAHUE JAMES A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-03-01T21:24:40.000Z","date":"2021-02-25","kind":"exercise","acquired":true,"shares":20000,"price":9.44,"value":188800.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was made pursuant to a Rule 10(b)5-1 trading plan adopted by Mr. Donahue on November 20, 2020 (the \"Plan\").  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Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The shares with respect to this transaction were sold in multiple trades at prices ranging from $44.21 to $45.10; the price reported above reflects the weighted average price.  The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Number of shares includes 8,532 Restricted Stock Units (RSUs) that in the future will be converted on a one-for-one basis into shares of Cohu, Inc. 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Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The shares with respect to this transaction were sold in multiple trades at prices ranging from $43.62 to $46.04; the price reported above reflects the weighted average price.  The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":369733,"source":{"system":"sec-edgar","filing":"0001209191-21-014230","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/21535/000120919121014230/doc4.xml","form_type":"4"}},{"id":2834865,"issuer":{"id":4478,"kind":"organization","name":"COHU INC","symbol":"COHU"},"owners":[{"id":44547,"kind":"person","name":"DONAHUE JAMES A","position":1,"cik":"0001222030","reported_name":"DONAHUE JAMES A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-02-25T18:42:12.000Z","date":"2021-02-24","kind":"exercise","acquired":true,"shares":20000,"price":9.44,"value":188800.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was made pursuant to a Rule 10(b)5-1 trading plan adopted by Mr. Donahue on November 20, 2020 (the \"Plan\").  Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."}],"balance_after":387056,"source":{"system":"sec-edgar","filing":"0001209191-21-014230","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/21535/000120919121014230/doc4.xml","form_type":"4"}},{"id":2834864,"issuer":{"id":4478,"kind":"organization","name":"COHU INC","symbol":"COHU"},"owners":[{"id":44547,"kind":"person","name":"DONAHUE JAMES A","position":1,"cik":"0001222030","reported_name":"DONAHUE JAMES A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-02-25T18:42:12.000Z","date":"2021-02-23","kind":"sale","acquired":false,"shares":12677,"price":43.42,"value":550435.34,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was made pursuant to a Rule 10(b)5-1 trading plan adopted by Mr. Donahue on November 20, 2020 (the \"Plan\").  Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The shares with respect to this transaction were sold in multiple trades at prices ranging from $41.61 to $44.64; the price reported above reflects the weighted average price.  The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":367056,"source":{"system":"sec-edgar","filing":"0001209191-21-014230","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/21535/000120919121014230/doc4.xml","form_type":"4"}},{"id":2834863,"issuer":{"id":4478,"kind":"organization","name":"COHU INC","symbol":"COHU"},"owners":[{"id":44547,"kind":"person","name":"DONAHUE JAMES A","position":1,"cik":"0001222030","reported_name":"DONAHUE JAMES A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-02-25T18:42:12.000Z","date":"2021-02-23","kind":"exercise","acquired":true,"shares":12677,"price":9.44,"value":119670.88,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was made pursuant to a Rule 10(b)5-1 trading plan adopted by Mr. Donahue on November 20, 2020 (the \"Plan\").  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Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The shares with respect to this transaction were sold in multiple trades at prices ranging from $41.61 to $44.00; the price reported above reflects the weighted average price.  The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":367056,"source":{"system":"sec-edgar","filing":"0001209191-21-014230","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/21535/000120919121014230/doc4.xml","form_type":"4"}},{"id":2834861,"issuer":{"id":4478,"kind":"organization","name":"COHU INC","symbol":"COHU"},"owners":[{"id":44547,"kind":"person","name":"DONAHUE JAMES A","position":1,"cik":"0001222030","reported_name":"DONAHUE JAMES A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-02-25T18:42:12.000Z","date":"2021-02-23","kind":"exercise","acquired":true,"shares":7323,"price":10.58,"value":77477.34,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was made pursuant to a Rule 10(b)5-1 trading plan adopted by Mr. Donahue on November 20, 2020 (the \"Plan\").  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Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The shares with respect to this transaction were sold in multiple trades at prices ranging from $44.97 to $46.18; the price reported above reflects the weighted average price.  The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Number of shares includes 8,532 Restricted Stock Units (RSUs) that in the future will be converted on a one-for-one basis into shares of Cohu, Inc. 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Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The shares with respect to this transaction were sold in multiple trades at prices ranging from $47.60 to $48.44; the price reported above reflects the weighted average price.  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Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The shares with respect to this transaction were sold in multiple trades at prices ranging from $46.95 to $48.76; the price reported above reflects the weighted average price.  The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":367056,"source":{"system":"sec-edgar","filing":"0001209191-21-012306","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/21535/000120919121012306/doc4.xml","form_type":"4"}},{"id":2848524,"issuer":{"id":4478,"kind":"organization","name":"COHU INC","symbol":"COHU"},"owners":[{"id":44547,"kind":"person","name":"DONAHUE JAMES A","position":1,"cik":"0001222030","reported_name":"DONAHUE JAMES A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-02-19T20:44:54.000Z","date":"2021-02-17","kind":"exercise","acquired":true,"shares":20000,"price":10.58,"value":211600.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was made pursuant to a Rule 10(b)5-1 trading plan adopted by Mr. Donahue on November 20, 2020 (the \"Plan\").  Mr. Donahue holds various stock options that are expiring in 2022 and 2023 and wished to put the Plan in place to facilitate the orderly exercise of such options before their expiration."}],"balance_after":387056,"source":{"system":"sec-edgar","filing":"0001209191-21-012306","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/21535/000120919121012306/doc4.xml","form_type":"4"}},{"id":3159060,"issuer":{"id":4478,"kind":"organization","name":"COHU INC","symbol":"COHU"},"owners":[{"id":44547,"kind":"person","name":"DONAHUE JAMES A","position":1,"cik":"0001222030","reported_name":"DONAHUE JAMES A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2020-05-07T21:25:05.000Z","date":"2020-05-06","kind":"grant","acquired":true,"shares":8532,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Each Restricted Stock Unit (RSU) represents a contingent right to receive one share of Cohu, Inc. 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