{"transactions":[{"id":705012,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2026-07-22T20:02:44.000Z","date":"2026-07-20","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The stock option was granted on July 20, 2026 pursuant to the Richardson Electronics, Ltd. 2011 Amended and Restated Long-Term Incentive Plan. The option vests over 5 years with 1/5 of the total number of shares subject to the option vesting on each anniversary date of grant, until fully vested."}],"balance_after":20000,"derivative":{"exercise_price":16.56,"exercise_date":"2027-07-20","expiration_date":"2036-07-20","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001193125-26-312382","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000119312526312382/ownership.xml","form_type":"4"}},{"id":705011,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2026-07-22T20:02:44.000Z","date":"2026-07-20","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. Amended and Restated 2011 Long-Term Incentive Plan, which shall vest ratably over a three year period, beginning on the first anniversary of the date of issuance."}],"balance_after":43114,"source":{"system":"sec-edgar","filing":"0001193125-26-312382","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000119312526312382/ownership.xml","form_type":"4"}},{"id":993271,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2025-11-20T19:08:06.000Z","date":"2025-11-19","kind":"gift","planned":false,"acquired":false,"shares":500,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By self as Trustee and sole Beneficiary of Edward J. Richardson Trust UA January 24, 2001"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock."},{"field":"shares","element":"transactionShares","label":"F5","text":"Transferred via bona fide gift to Nicholas Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Immediately convertible."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"No expiration date."}],"balance_after":1995657,"derivative":{"exercise_price":0,"exercise_date":"2025-11-19","underlying":"Class B Common Stock","underlying_shares":500},"source":{"system":"sec-edgar","filing":"0001193125-25-289417","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/355948/000119312525289417/ownership.xml","form_type":"4"}},{"id":993270,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2025-11-20T19:08:06.000Z","date":"2025-11-19","kind":"gift","planned":false,"acquired":false,"shares":500,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By self as Trustee and sole Beneficiary of Edward J. Richardson Trust UA January 24, 2001"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock."},{"field":"shares","element":"transactionShares","label":"F4","text":"Transferred via bona fide gift to Alexander Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Immediately convertible."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"No expiration date."}],"balance_after":1996157,"derivative":{"exercise_price":0,"exercise_date":"2025-11-19","underlying":"Class B Common Stock","underlying_shares":500},"source":{"system":"sec-edgar","filing":"0001193125-25-289417","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/355948/000119312525289417/ownership.xml","form_type":"4"}},{"id":993269,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2025-11-20T19:08:06.000Z","date":"2025-11-18","kind":"exercise","planned":false,"acquired":false,"shares":12500,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By self as Trustee and sole Beneficiary of Edward J. Richardson Trust UA January 24, 2001"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Immediately convertible."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"No expiration date."}],"balance_after":1996657,"derivative":{"exercise_price":0,"underlying":"Class B Common Stock","underlying_shares":12500},"source":{"system":"sec-edgar","filing":"0001193125-25-289417","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/355948/000119312525289417/ownership.xml","form_type":"4"}},{"id":993268,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T19:08:06.000Z","date":"2025-11-18","kind":"gift","planned":false,"acquired":false,"shares":32500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F6","text":"This represents a bona fide gift. Mr. Richardson disclaims all beneficial and pecuniary interests."}],"balance_after":23114,"source":{"system":"sec-edgar","filing":"0001193125-25-289417","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000119312525289417/ownership.xml","form_type":"4"}},{"id":993267,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2025-11-20T19:08:06.000Z","date":"2025-11-18","kind":"exercise","planned":false,"acquired":true,"shares":12500,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":55614,"source":{"system":"sec-edgar","filing":"0001193125-25-289417","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000119312525289417/ownership.xml","form_type":"4"}},{"id":1083111,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2025-07-23T13:39:55.000Z","date":"2025-07-21","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The stock option was granted on July 21, 2025 pursuant to the Richardson Electronics, Ltd. 2011 Amended and Restated Long-Term Incentive Plan. The option vests over 5 years with 1/5 of the total number of shares subject to the option vesting on each anniversary date of grant, until fully vested."}],"balance_after":20000,"derivative":{"exercise_price":9.73,"exercise_date":"2026-07-21","expiration_date":"2035-07-21","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0000950170-25-097750","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017025097750/ownership.xml","form_type":"4"}},{"id":1083110,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2025-07-23T13:39:55.000Z","date":"2025-07-21","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. Amended and Restated 2011 Long-Term Incentive Plan, which shall vest ratably over a three year period, beginning on the first anniversary of the date of issuance."}],"balance_after":43114,"source":{"system":"sec-edgar","filing":"0000950170-25-097750","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017025097750/ownership.xml","form_type":"4"}},{"id":1323569,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2024-12-23T18:58:58.000Z","date":"2024-12-19","kind":"gift","planned":false,"acquired":false,"shares":35000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This represents a bona fide gift. Mr. Richardson disclaims all beneficial and pecuniary interests."}],"balance_after":23114,"source":{"system":"sec-edgar","filing":"0000950170-24-139452","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017024139452/ownership.xml","form_type":"4"}},{"id":1324890,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2024-12-20T15:46:02.000Z","date":"2024-12-18","kind":"gift","planned":false,"acquired":false,"shares":1000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By self as Trustee and sole Beneficiary of Edward J. Richardson Trust UA January 24, 2001"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F5","text":"Transferred via bona fide gift to Nicholas Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2009157,"derivative":{"exercise_price":0,"exercise_date":"2024-12-18","underlying":"Common Stock","underlying_shares":1000},"source":{"system":"sec-edgar","filing":"0000950170-24-138854","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017024138854/ownership.xml","form_type":"4"}},{"id":1324889,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2024-12-20T15:46:02.000Z","date":"2024-12-18","kind":"gift","planned":false,"acquired":false,"shares":1000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By self as Trustee and sole Beneficiary of Edward J. Richardson Trust UA January 24, 2001"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F2","text":"Transferred via bona fide gift to Alexander Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2010157,"derivative":{"exercise_price":0,"exercise_date":"2024-12-18","underlying":"Common Stock","underlying_shares":1000},"source":{"system":"sec-edgar","filing":"0000950170-24-138854","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017024138854/ownership.xml","form_type":"4"}},{"id":1449667,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-07-24T20:06:44.000Z","date":"2024-07-22","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The stock option was granted on July 22, 2024 pursuant to the Richardson Electronics, Ltd. 2011 Amended and Restated Long-Term Incentive Plan. The option vests over 5 years with 1/5 of the total number of shares subject to the option vesting on each anniversary date of grant, until fully vested."}],"balance_after":20000,"derivative":{"exercise_price":11.89,"exercise_date":"2025-07-22","expiration_date":"2034-07-22","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0000950170-24-086035","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017024086035/ownership.xml","form_type":"4"}},{"id":1449666,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2024-07-24T20:06:44.000Z","date":"2024-07-22","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. Amended and Restated 2011 Long-Term Incentive Plan, which shall vest ratably over a three year period, beginning on the first anniversary of the date of issuance."}],"balance_after":58114,"source":{"system":"sec-edgar","filing":"0000950170-24-086035","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017024086035/ownership.xml","form_type":"4"}},{"id":1450906,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2024-07-22T20:25:18.000Z","date":"2024-07-19","kind":"tax_withholding","planned":false,"acquired":false,"shares":1082,"price":11.52,"value":12464.64,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares surrendered to Issuer in connection with the vesting of a previously reported grant of restricted shares to satisfy the income tax withholding and remittance obligations of the reporting person at a net settlement price equal to closing price on the NASDAQ Global Select Market  on  July 19, 2024 of $11.52 and does not represent a sale of the reporting person."}],"balance_after":38114,"source":{"system":"sec-edgar","filing":"0000950170-24-085270","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017024085270/ownership.xml","form_type":"4"}},{"id":1450905,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2024-07-22T20:25:18.000Z","date":"2024-07-18","kind":"tax_withholding","planned":false,"acquired":false,"shares":1067,"price":11.83,"value":12622.61,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares surrendered to Issuer in connection with the vesting of a previously reported grant of restricted shares to satisfy the income tax withholding and remittance obligations of the reporting person at a net settlement price equal to closing price on the NASDAQ Global Select Market  on July 18, 2024 of $ 11.83  and does not represent a sale of the reporting person."}],"balance_after":39196,"source":{"system":"sec-edgar","filing":"0000950170-24-085270","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017024085270/ownership.xml","form_type":"4"}},{"id":1452130,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2024-07-18T22:41:28.000Z","date":"2024-07-17","kind":"tax_withholding","planned":false,"acquired":false,"shares":1038,"price":12.45,"value":12923.1,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares surrendered to Issuer in connection with the vesting of a previously reported grant of restricted shares to satisfy the income tax withholding and remittance obligations of the reporting person at a net settlement price equal to closing price on the NASDAQ Global Select Market  on   July 17, 2024 of $12.45    and does not represent a sale of the reporting person."}],"balance_after":40263,"source":{"system":"sec-edgar","filing":"0000950170-24-084699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000095017024084699/ownership.xml","form_type":"4"}},{"id":1699865,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2023-12-27T17:09:31.000Z","date":"2023-12-22","kind":"gift","planned":false,"acquired":false,"shares":28400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This represents a bona fide gift. Mr. Richardson disclaims all beneficial and pecuniary interests."}],"balance_after":41301,"source":{"system":"sec-edgar","filing":"0001209191-23-059760","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919123059760/doc4.xml","form_type":"4"}},{"id":1720689,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2023-12-06T17:45:03.000Z","date":"2023-12-04","kind":"gift","planned":false,"acquired":false,"shares":750,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By self as Trustee and sole Beneficiary of Edward J. Richardon Trust UA January 24, 2001"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F5","text":"Transferred via bona fide gift to Nicholas Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2011157,"derivative":{"exercise_price":0,"exercise_date":"2023-12-04","underlying":"Common Stock","underlying_shares":750},"source":{"system":"sec-edgar","filing":"0001209191-23-057576","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919123057576/doc4.xml","form_type":"4"}},{"id":1720688,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2023-12-06T17:45:03.000Z","date":"2023-12-04","kind":"gift","planned":false,"acquired":false,"shares":750,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By self as Trustee and sole Beneficiary of Edward J. Richardon Trust UA January 24, 2001"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F2","text":"Transferred via bona fide gift to Alexander Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2011907,"derivative":{"exercise_price":0,"exercise_date":"2023-12-04","underlying":"Common Stock","underlying_shares":750},"source":{"system":"sec-edgar","filing":"0001209191-23-057576","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919123057576/doc4.xml","form_type":"4"}},{"id":1827424,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2023-07-20T00:55:48.000Z","date":"2023-07-17","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The stock option was granted on 07/17/2023 pursuant to the Richardson Electronics, Ltd. 2011 Amended and Restated Long-Term Incentive Plan. The option vests over 5 years with 1/5 of the total number of shares subject to the option vesting on each anniversary of the date of grant, until fully vested"}],"balance_after":20000,"derivative":{"exercise_price":15.51,"exercise_date":"2024-07-17","expiration_date":"2033-07-17","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001209191-23-042840","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919123042840/doc4.xml","form_type":"4"}},{"id":1827423,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2023-07-20T00:55:48.000Z","date":"2023-07-17","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. Amended and Restated 2011 Long-Term Incentive Plan, which shall vest ratably over a three year period, beginning on the first anniversary of the date of issuance"}],"balance_after":69701,"source":{"system":"sec-edgar","filing":"0001209191-23-042840","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919123042840/doc4.xml","form_type":"4"}},{"id":1845931,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2023-06-23T21:10:29.000Z","date":"2023-06-22","kind":"gift","planned":false,"acquired":false,"shares":2800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This represents a bona fide gift. Mr. Richardson disclaims all beneficial and pecuniary interests."}],"balance_after":49701,"source":{"system":"sec-edgar","filing":"0001209191-23-039448","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919123039448/doc4.xml","form_type":"4"}},{"id":2085796,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2022-12-15T18:42:15.000Z","date":"2022-12-13","kind":"gift","acquired":false,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This represents a bona fide gift. Mr. Richardson disclaims all beneficial and pecuniary interests."}],"balance_after":52501,"source":{"system":"sec-edgar","filing":"0001209191-22-061363","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919122061363/doc4.xml","form_type":"4"}},{"id":2092734,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2022-12-08T21:49:19.000Z","date":"2022-12-06","kind":"gift","acquired":false,"shares":500,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By self as Trustee and sole Beneficiary of Edward J. Richardson Trust UA January 24, 2001"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F5","text":"Transferred via bona fide gift to Nicholas Richardson (son)"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2012657,"derivative":{"exercise_price":0,"exercise_date":"2022-12-06","underlying":"Common Stock","underlying_shares":500},"source":{"system":"sec-edgar","filing":"0001209191-22-060365","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919122060365/doc4.xml","form_type":"4"}},{"id":2092733,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2022-12-08T21:49:19.000Z","date":"2022-12-06","kind":"gift","acquired":false,"shares":500,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By self as Trustee and sole Beneficiary of Edward J. Richardson Trust UA January 24, 2001"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F2","text":"Transferred via bona fide gift to Alexander Richardson (son)"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2013157,"derivative":{"exercise_price":0,"exercise_date":"2022-12-06","underlying":"Common Stock","underlying_shares":500},"source":{"system":"sec-edgar","filing":"0001209191-22-060365","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919122060365/doc4.xml","form_type":"4"}},{"id":2204841,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2022-07-20T22:09:56.000Z","date":"2022-07-18","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The stock option was granted on 07/18/2022 pursuant to the Richardson Electronics, Ltd. Amended and Restated 2011 Long-Term Incentive Plan. The option vests over 5 years with 1/5 of the total number of shares subject to the option vesting on each anniversary of the date of grant, until fully vested"}],"balance_after":20000,"derivative":{"exercise_price":15.6,"exercise_date":"2023-07-18","expiration_date":"2032-07-18","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001209191-22-042758","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919122042758/doc4.xml","form_type":"4"}},{"id":2204840,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common  Stock","published_at":"2022-07-20T22:09:56.000Z","date":"2022-07-18","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. Amended and Restated 2011 Long-Term Incentive Plan, which shall vest ratably over a three year period, beginning on the first anniversary of the date of issuance"}],"balance_after":72501,"source":{"system":"sec-edgar","filing":"0001209191-22-042758","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919122042758/doc4.xml","form_type":"4"}},{"id":2433100,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2022-01-19T18:04:21.000Z","date":"2022-01-18","kind":"gift","acquired":false,"shares":25000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"This represents a bona fide gift. Mr. Richardson disclaims all beneficial and pecuniary interests."}],"balance_after":52501,"source":{"system":"sec-edgar","filing":"0001209191-22-003659","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919122003659/doc4.xml","form_type":"4"}},{"id":2433099,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2022-01-19T18:04:21.000Z","date":"2022-01-14","kind":"gift","acquired":false,"shares":12500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This was a bona fide gift to the University of Minnesota"}],"balance_after":77501,"source":{"system":"sec-edgar","filing":"0001209191-22-003659","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919122003659/doc4.xml","form_type":"4"}},{"id":2437229,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2022-01-12T18:02:37.000Z","date":"2022-01-10","kind":"exercise","acquired":false,"shares":43.409,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"No expiration date"}],"balance_after":2013657,"derivative":{"exercise_price":0,"underlying":"Class B Common Stock","underlying_shares":43409},"source":{"system":"sec-edgar","filing":"0001209191-22-003028","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919122003028/doc4.xml","form_type":"4"}},{"id":2437228,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2022-01-12T18:02:37.000Z","date":"2022-01-10","kind":"exercise","acquired":true,"shares":43409,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":90001,"source":{"system":"sec-edgar","filing":"0001209191-22-003028","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919122003028/doc4.xml","form_type":"4"}},{"id":2479812,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2021-12-09T17:59:45.000Z","date":"2021-12-08","kind":"gift","acquired":false,"shares":1250,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F5","text":"This was a bona fide gift to Nicholas Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2057066,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1250},"source":{"system":"sec-edgar","filing":"0001209191-21-068672","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919121068672/doc4.xml","form_type":"4"}},{"id":2479811,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2021-12-09T17:59:45.000Z","date":"2021-12-08","kind":"gift","acquired":false,"shares":1250,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F2","text":"This was a bona fide gift to Alexander Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2058316,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1250},"source":{"system":"sec-edgar","filing":"0001209191-21-068672","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919121068672/doc4.xml","form_type":"4"}},{"id":2535969,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2021-10-25T19:05:46.000Z","date":"2021-10-21","kind":"gift","acquired":false,"shares":12500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This was a bona fide gift to the University of Minnesota"}],"balance_after":46592,"source":{"system":"sec-edgar","filing":"0001209191-21-061465","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919121061465/doc4.xml","form_type":"4"}},{"id":2536943,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2021-10-22T16:20:12.000Z","date":"2021-10-20","kind":"gift","acquired":false,"shares":25000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Richardson disclaims all beneficial and pecuniary interests."}],"balance_after":59092,"source":{"system":"sec-edgar","filing":"0001209191-21-061329","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919121061329/doc4.xml","form_type":"4"}},{"id":2628795,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Employee Stock Option (right to buy)","published_at":"2021-07-21T17:36:12.000Z","date":"2021-07-19","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The stock option was granted on 07/19/2021 pursuant to the Richardson Electronics, Ltd. Amended and Restated 2011 Long-Term Incentive Plan. The option vests over\n5 years with 1/5 of the total number of shares subject to the option vesting on each anniversary of the date of grant, until fully vested"}],"balance_after":20000,"derivative":{"exercise_price":7.66,"exercise_date":"2022-07-19","expiration_date":"2031-07-19","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001209191-21-047559","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919121047559/doc4.xml","form_type":"4"}},{"id":2628794,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2021-07-21T17:36:12.000Z","date":"2021-07-19","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. Amended and Restated 2011 Long-Term Incentive Plan, which shall vest ratably over a three year period, beginning on the first anniversary of the date of issuance"}],"balance_after":84092,"source":{"system":"sec-edgar","filing":"0001209191-21-047559","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919121047559/doc4.xml","form_type":"4"}},{"id":2667241,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2021-06-16T19:24:47.000Z","date":"2021-06-14","kind":"gift","acquired":false,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Richardson disclaims all beneficial and pecuniary interests"}],"balance_after":64092,"source":{"system":"sec-edgar","filing":"0001209191-21-040873","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919121040873/doc4.xml","form_type":"4"}},{"id":2737824,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2021-04-28T18:29:11.000Z","date":"2021-04-27","kind":"gift","acquired":false,"shares":12500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This was a bona fide gift to the University of Minnesota"}],"balance_after":84092,"source":{"system":"sec-edgar","filing":"0001209191-21-028765","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919121028765/doc4.xml","form_type":"4"}},{"id":2947690,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2020-12-14T19:33:51.000Z","date":"2020-12-11","kind":"gift","acquired":false,"shares":2000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F5","text":"This was a bona fide gift to Nicholas Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2059566,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2000},"source":{"system":"sec-edgar","filing":"0001209191-20-063169","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919120063169/doc4.xml","form_type":"4"}},{"id":2947689,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2020-12-14T19:33:51.000Z","date":"2020-12-11","kind":"gift","acquired":false,"shares":2000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F2","text":"This was a bona fide gift to Alexander Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2061266,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":2000},"source":{"system":"sec-edgar","filing":"0001209191-20-063169","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919120063169/doc4.xml","form_type":"4"}},{"id":3077313,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Employee Stock Option (right to buy)","published_at":"2020-07-23T19:36:25.000Z","date":"2020-07-21","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The stock option was granted on 07/21/2020 pursuant to the Richardson Electronics, Ltd. 2011 Long-Term Incentive Plan. The option vests over\n5 years with 1/5 of the total number of shares subject to the option vesting on each anniversary of the date of grant, until fully vested"}],"balance_after":20000,"derivative":{"exercise_price":4.26,"exercise_date":"2021-07-21","expiration_date":"2030-07-21","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001209191-20-043463","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919120043463/doc4.xml","form_type":"4"}},{"id":3077312,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2020-07-23T19:36:25.000Z","date":"2020-07-21","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. 2011 Long-Term Incentive Plan, which shall vest ratably over a three\nyear period, beginning on the first anniversary of the date of issuance"}],"balance_after":96592,"source":{"system":"sec-edgar","filing":"0001209191-20-043463","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919120043463/doc4.xml","form_type":"4"}},{"id":3337824,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2019-12-18T21:46:06.000Z","date":"2019-12-18","kind":"gift","acquired":false,"shares":1700,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F5","text":"This was a bona fide gift to Nicholas Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2063566,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1700},"source":{"system":"sec-edgar","filing":"0001209191-19-061141","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919119061141/doc4.xml","form_type":"4"}},{"id":3337823,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2019-12-18T21:46:06.000Z","date":"2019-12-18","kind":"gift","acquired":false,"shares":1700,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F2","text":"This was a bona fide gift to Alexander Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2065266,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":1700},"source":{"system":"sec-edgar","filing":"0001209191-19-061141","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919119061141/doc4.xml","form_type":"4"}},{"id":3457151,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Employee Stock Option (right to buy)","published_at":"2019-07-24T22:04:33.000Z","date":"2019-07-22","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The stock option was granted on 07/22/2019 pursuant to the Richardson Electronics, Ltd. 2011 Long-Term Incentive Plan. The option vests over 5 years with 1/5 of the total number of shares subject to the option vesting on each anniversary of the date of grant, until fully vested"}],"balance_after":20000,"derivative":{"exercise_price":5.61,"exercise_date":"2020-07-22","expiration_date":"2029-07-22","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001209191-19-043126","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919119043126/doc4.xml","form_type":"4"}},{"id":3457150,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2019-07-24T22:04:33.000Z","date":"2019-07-22","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. 2011 Long-Term Incentive Plan, which shall vest ratably over a three year period, beginning on the first anniversary of the date of issuance"}],"balance_after":76592,"source":{"system":"sec-edgar","filing":"0001209191-19-043126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919119043126/doc4.xml","form_type":"4"}},{"id":3730069,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2018-12-17T16:20:59.000Z","date":"2018-12-14","kind":"gift","acquired":false,"shares":500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F5","text":"This was a bona fide gift to Nicholas Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2066966,"derivative":{"exercise_price":0,"underlying":"Common stock","underlying_shares":500},"source":{"system":"sec-edgar","filing":"0001209191-18-062865","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919118062865/doc4.xml","form_type":"4"}},{"id":3730068,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2018-12-17T16:20:59.000Z","date":"2018-12-14","kind":"gift","acquired":false,"shares":500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible into one share of Common Stock"},{"field":"shares","element":"transactionShares","label":"F2","text":"This was a bona fide gift to Alexander Richardson, son"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"No expiration date"}],"balance_after":2067466,"derivative":{"exercise_price":0,"underlying":"Common stock","underlying_shares":500},"source":{"system":"sec-edgar","filing":"0001209191-18-062865","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000120919118062865/doc4.xml","form_type":"4"}},{"id":3836619,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2018-08-23T00:26:39.000Z","date":"2018-08-20","kind":"grant","acquired":true,"shares":36592,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. 2011 Long-Term Incentive Plan, which shall vest ratably over a three year period, beginning on the first anniversary of the date of issuance."}],"balance_after":56592,"source":{"system":"sec-edgar","filing":"0001387131-18-004179","document":"richardson-form4_082018.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000138713118004179/richardson-form4_082018.xml","form_type":"4"}},{"id":3836617,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Class B Common Stock","published_at":"2018-08-23T00:23:04.000Z","date":"2018-08-20","kind":"gift","acquired":false,"shares":40000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Richardson disclaims all beneficial and pecuniary interests"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Immediately convertible"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"No expiration date"}],"balance_after":2067966,"derivative":{"exercise_price":9.1,"underlying":"Common Stock","underlying_shares":40000},"source":{"system":"sec-edgar","filing":"0001387131-18-004177","document":"richardson-form4_082018.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000138713118004177/richardson-form4_082018.xml","form_type":"4"}},{"id":4188517,"issuer":{"id":6145,"kind":"organization","name":"RICHARDSON ELECTRONICS, LTD."},"owners":[{"id":29233,"kind":"person","name":"RICHARDSON EDWARD J","position":1,"cik":"0000918270","reported_name":"RICHARDSON EDWARD J","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2017-10-11T21:33:13.000Z","date":"2017-10-09","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock award under the Richardson Electronics, Ltd. 2011 Long-Term Incentive Plan, which shall vest ratably over a three year period, beginning on the first anniversary of the date of issuance."}],"balance_after":20000,"source":{"system":"sec-edgar","filing":"0001387131-17-005023","document":"richardson-form4_100917.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/355948/000138713117005023/richardson-form4_100917.xml","form_type":"4"}}]}