{"transactions":[{"id":1356557,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-10-14","kind":"exercise","planned":true,"acquired":false,"shares":31860,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F15","text":"Represents shares owned directly by The Ronald D. Croatti Trust - 1993, of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary."}],"balance_after":1003874,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":31860},"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356556,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-21","kind":"sale","planned":true,"acquired":false,"shares":3899,"price":196.65,"value":766738.35,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F14","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $196.24 to $197.01, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356555,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-21","kind":"sale","planned":true,"acquired":false,"shares":5190,"price":195.85,"value":1016461.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F13","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $195.23 to $196.22, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":3899,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356554,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-21","kind":"sale","planned":true,"acquired":false,"shares":3497,"price":194.71,"value":680900.87,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F12","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $194.21 to $195.18, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":9089,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356553,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-21","kind":"sale","planned":true,"acquired":false,"shares":3015,"price":193.72,"value":584065.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F11","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $193.18 to $194.13, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":12586,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356552,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-21","kind":"sale","planned":true,"acquired":false,"shares":329,"price":192.67,"value":63388.43,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $192.17 to $193.16, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":15601,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356551,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-21","kind":"sale","planned":true,"acquired":false,"shares":50,"price":193.5,"value":9675.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."}],"balance_after":15930,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356550,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-21","kind":"sale","planned":true,"acquired":false,"shares":1223,"price":193.01,"value":236051.23,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $192.47 to $193.47, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":15980,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356549,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-21","kind":"sale","planned":true,"acquired":false,"shares":187,"price":191.83,"value":35872.21,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $191.09 to $192.03, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":17203,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356548,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-20","kind":"sale","planned":true,"acquired":false,"shares":4217,"price":191.67,"value":808272.39,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $191.50 to $192.29, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":17390,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356547,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-20","kind":"sale","planned":true,"acquired":false,"shares":2272,"price":190.89,"value":433702.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $190.46 to $191.45, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":21607,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356546,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-20","kind":"sale","planned":true,"acquired":false,"shares":3011,"price":190.05,"value":572240.55,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $189.45 to $190.41, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":23879,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356545,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-19","kind":"sale","planned":true,"acquired":false,"shares":2268,"price":193.5,"value":438858.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $193.10 to $194.00, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":26890,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356544,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-11-19","kind":"sale","planned":true,"acquired":false,"shares":2702,"price":192.71,"value":520702.42,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares sold pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted on August 16, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $192.07 to $193.05, inclusive. The reporting person undertakes to provide to UniFirst Corporation, any security holder of UniFirst Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range."}],"balance_after":29158,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":1356543,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-11-22T02:55:46.000Z","date":"2024-10-14","kind":"exercise","planned":true,"acquired":true,"shares":31860,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":31860,"source":{"system":"sec-edgar","filing":"0000950170-24-129902","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/717954/000095017024129902/ownership.xml","form_type":"4"}},{"id":2205879,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2022-07-19T18:19:28.000Z","date":"2022-07-15","kind":"sale","acquired":false,"shares":35714,"price":168,"value":5999952.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Includes 1,035,734 shares owned directly by The Ronald D. Croatti Trust - 1993, of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary. In addition, includes shares owned directly by certain trusts with respect to which Carol Croatti is a trustee but not a beneficiary. Carol Croatti disclaims beneficial ownership of these reported securities, except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that she is the beneficial owner of these securities for purposes of Section 16 or any other purpose."}],"balance_after":1110095,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":35714},"source":{"system":"sec-edgar","filing":"0001209191-22-042523","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919122042523/doc4.xml","form_type":"4"}},{"id":2545078,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-10-12T21:05:50.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":7004,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":0,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":7004},"source":{"system":"sec-edgar","filing":"0001209191-21-060248","document":"doc5.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919121060248/doc5.xml","form_type":"5"}},{"id":2545077,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-10-12T21:05:50.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":7004,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":0,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":7004},"source":{"system":"sec-edgar","filing":"0001209191-21-060248","document":"doc5.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919121060248/doc5.xml","form_type":"5"}},{"id":2545076,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-10-12T21:05:50.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":7004,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":0,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":7004},"source":{"system":"sec-edgar","filing":"0001209191-21-060248","document":"doc5.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919121060248/doc5.xml","form_type":"5"}},{"id":2545075,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-10-12T21:05:50.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":7004,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":0,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":7004},"source":{"system":"sec-edgar","filing":"0001209191-21-060248","document":"doc5.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919121060248/doc5.xml","form_type":"5"}},{"id":2545074,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-10-12T21:05:50.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":7004,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":0,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":7004},"source":{"system":"sec-edgar","filing":"0001209191-21-060248","document":"doc5.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919121060248/doc5.xml","form_type":"5"}},{"id":2545073,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-10-12T21:05:50.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":7004,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":0,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":7004},"source":{"system":"sec-edgar","filing":"0001209191-21-060248","document":"doc5.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919121060248/doc5.xml","form_type":"5"}},{"id":2545072,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-10-12T21:05:50.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":7004,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":0,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":7004},"source":{"system":"sec-edgar","filing":"0001209191-21-060248","document":"doc5.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919121060248/doc5.xml","form_type":"5"}},{"id":2545071,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-10-12T21:05:50.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":7004,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":0,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":7004},"source":{"system":"sec-edgar","filing":"0001209191-21-060248","document":"doc5.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919121060248/doc5.xml","form_type":"5"}},{"id":2545070,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-10-12T21:05:50.000Z","date":"2020-11-06","kind":"gift","acquired":false,"shares":7004,"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 at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock. Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."}],"balance_after":0,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":7004},"source":{"system":"sec-edgar","filing":"0001209191-21-060248","document":"doc5.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/717954/000120919121060248/doc5.xml","form_type":"5"}},{"id":3555402,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":2,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":3,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-04-16T20:14:50.000Z","date":"2019-04-15","kind":"sale","acquired":false,"shares":5583,"price":154.71,"value":863745.93,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares sold pursuant to a Rule 10b5-1 sales plan."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001284084-19-000026","document":"wf-form4_155544567556580.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/717954/000128408419000026/wf-form4_155544567556580.xml","form_type":"4"}},{"id":3664541,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":2,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":3,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-02-12T17:31:50.000Z","date":"2019-02-11","kind":"sale","acquired":false,"shares":5584,"price":141.19,"value":788404.96,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares sold pursuant to a Rule 10b5-1 sales plan."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Represents shares owned directly by The Ronald D. Croatti Trust - 1993, of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary."}],"balance_after":11166,"source":{"system":"sec-edgar","filing":"0001284084-19-000014","document":"wf-form4_154999269406636.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/717954/000128408419000014/wf-form4_154999269406636.xml","form_type":"4"}},{"id":3697803,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-01-11T18:21:12.000Z","date":"2019-01-10","kind":"sale","acquired":false,"shares":5584,"price":137.81,"value":769531.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares sold pursuant to a Rule 10b5-1 sales plan."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Represents shares owned directly by The Ronald D. Croatti Trust - 1993, of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary."}],"balance_after":16750,"source":{"system":"sec-edgar","filing":"0001284084-19-000005","document":"wf-form4_154723085429834.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/717954/000128408419000005/wf-form4_154723085429834.xml","form_type":"4"}},{"id":3730105,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-12-17T22:27:09.000Z","date":"2018-12-17","kind":"sale","acquired":false,"shares":2200,"price":139.65,"value":307230.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares sold pursuant to a Rule 10b5-1 sales plan."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Represents shares owned directly by The Ronald D. Croatti Trust - 1993, of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary."}],"balance_after":22334,"source":{"system":"sec-edgar","filing":"0001284084-18-000075","document":"wf-form4_154508561139351.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/717954/000128408418000075/wf-form4_154508561139351.xml","form_type":"4"}},{"id":3758103,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85848,"kind":"organization","name":"The Ronald D Croatti Trust - 1993","position":1,"cik":"0001724901","reported_name":"The Ronald D Croatti Trust - 1993","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":71244,"kind":"person","name":"Croatti Matthew","position":2,"cik":"0001724534","reported_name":"Croatti Matthew","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":85849,"kind":"person","name":"Croatti Carol","position":3,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-11-20T19:12:46.000Z","date":"2018-11-19","kind":"sale","acquired":false,"shares":2200,"price":149.57,"value":329054.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares sold pursuant to a Rule 10b5-1 sales plan."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Represents shares owned directly by The Ronald D. Croatti Trust - 1993, of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary."}],"balance_after":24534,"source":{"system":"sec-edgar","filing":"0001284084-18-000069","document":"wf-form4_154274114795695.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/717954/000128408418000069/wf-form4_154274114795695.xml","form_type":"4"}},{"id":3980434,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T20:59:42.000Z","date":"2018-03-27","kind":"sale","acquired":false,"shares":1062211,"price":124,"value":131714164.0,"ownership":{"direct":false,"nature":"By Partnership"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock.  Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"shares","element":"transactionShares","label":"F4","text":"Represents shares repurchased by UniFirst Corporation from The Queue Limited Partnership at a price per share of $124.00."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock.  Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock.  Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Each of the aforementioned reporting persons disclaims beneficial ownership of these reported securities, except to the extent of his, her or its pecuniary interest therein, if any, and this report shall not be deemed an admission that such persons are the beneficial owners of these securities for purposes of Section 16 or any other purpose."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F5","text":"Includes 672,775 shares owned directly by The Queue Limited Partnership  and 199 shares owned directly by Queue Management Associates, Inc.  Queue Management Associates, Inc. is the general partner of The Queue Limited Partnership. The Ronald D. Croatti Trust  1993 (of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary), Cynthia Croatti and Cecilia Levenstein are the sole shareholders of Queue Management Associates, Inc., and Carol Croatti, Cynthia Croatti and Cecelia Levenstein are the directors of Queue Management Associates, Inc. Cynthia Croatti and Cecelia Levenstein are trustees, co-trustees and in some cases beneficiaries, and in some cases their children are beneficiaries, of various trusts which hold limited partnership interests in The Queue Limited Partnership."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F6","text":"Ronald D. Croatti's children are beneficiaries of certain trusts which hold limited partnership interests in The Queue Limited Partnership.  Certain of the trusts which hold limited partnership interests in The Queue Limited Partnership also own some of the reported shares directly."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F7","text":"Includes 1,015,717 shares owned directly by The Red Cat Limited Partnership and 3 shares owned directly by Red Cat Management Associates, Inc.  Red Cat Management Associates, Inc. is the general partner of The Red Cat Limited Partnership. The Ronald D. Croatti Trust - 1993 and Cynthia Croatti are the sole shareholders of Red Cat Management Associates, Inc. and Carol Croatti and Cynthia Croatti are the directors of Red Cat Management Associates, Inc. Cynthia Croatti and Cecelia Levenstein are trustees, co-trustees and in the case of Cynthia Croatti a beneficiary of certain trusts which hold limited partnership interests in The Red Cat Limited Partnership. Ronald D. Croatti's children are beneficiaries of a trust which holds a limited partnership interest in The Red Cat Limited Partnership.  Certain of the trusts which hold limited partnership interests in The Red Cat Limited Partnership also own some of the reported shares directly."}],"balance_after":1688694,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":1062211},"source":{"system":"sec-edgar","filing":"0001284084-18-000031","document":"wf-form4_152235716883178.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/717954/000128408418000031/wf-form4_152235716883178.xml","form_type":"4"}},{"id":3980430,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T18:11:54.000Z","date":"2017-12-05","kind":"other","acquired":true,"shares":1098770,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock.  Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock.  Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock.  Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time by the holder into one share of Common Stock.  Each share of Class B Common Stock automatically converts into one share of Common Stock upon transfer to a recipient that is not a permitted transferee or upon termination of the Class B Common Stock, in each case in accordance with the terms of the charter of UniFirst Corporation."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"Represents shares owned directly by The Ronald D. Croatti Trust - 1993, of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary."}],"balance_after":1098770,"derivative":{"underlying":"Common Stock ($0.10 par value)","underlying_shares":1098770},"source":{"system":"sec-edgar","filing":"0001284084-18-000028","document":"wf-form4_152234710040071.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/717954/000128408418000028/wf-form4_152234710040071.xml","form_type":"4"}},{"id":3980429,"issuer":{"id":3907,"kind":"organization","name":"UNIFIRST CORP"},"owners":[{"id":85849,"kind":"person","name":"Croatti Carol","position":1,"cik":"0001724908","reported_name":"Croatti Carol","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2018-03-29T18:11:54.000Z","date":"2017-12-05","kind":"other","acquired":true,"shares":31134,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"Represents shares owned directly by The Ronald D. Croatti Trust - 1993, of which Carol Croatti and Matthew Croatti are the trustees and Carol Croatti is the beneficiary."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Each of the aforementioned reporting persons disclaims beneficial ownership of these reported securities, except to the extent of his, her or its pecuniary interest therein, if any, and this report shall not be deemed an admission that such persons are the beneficial owners of these securities for purposes of Section 16 or any other purpose."}],"balance_after":31134,"source":{"system":"sec-edgar","filing":"0001284084-18-000028","document":"wf-form4_152234710040071.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/717954/000128408418000028/wf-form4_152234710040071.xml","form_type":"4"}}]}