{"transactions":[{"id":2556218,"issuer":{"id":3746,"kind":"organization","name":"ALLEGRO MICROSYSTEMS, INC."},"owners":[{"id":135148,"kind":"person","name":"Fujita Noriharu","position":1,"cik":"0001828868","reported_name":"Fujita Noriharu","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-09-30T20:48:08.000Z","date":"2021-09-29","kind":"sale","acquired":false,"shares":12143,"price":31.88,"value":387118.84,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The reported transaction involves sale transactions ranging from $31.37 to $33.15 per share. The weighted average price per share was $31.88. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price."},{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 26, 2021."}],"balance_after":10036,"source":{"system":"sec-edgar","filing":"0001828868-21-000003","document":"wf-form4_163303487297423.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/866291/000182886821000003/wf-form4_163303487297423.xml","form_type":"4"}},{"id":2612209,"issuer":{"id":3746,"kind":"organization","name":"ALLEGRO MICROSYSTEMS, INC."},"owners":[{"id":135148,"kind":"person","name":"Fujita Noriharu","position":1,"cik":"0001828868","reported_name":"Fujita Noriharu","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-08-06T21:14:28.000Z","date":"2021-08-05","kind":"grant","acquired":true,"shares":6308,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents an award of Restricted Stock Units (\"RSUs\"). Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest on the date of the next annual meeting following the grant date."}],"balance_after":22179,"source":{"system":"sec-edgar","filing":"0001828868-21-000001","document":"wf-form4_162828444342136.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/866291/000182886821000001/wf-form4_162828444342136.xml","form_type":"4"}},{"id":2993512,"issuer":{"id":3746,"kind":"organization","name":"ALLEGRO MICROSYSTEMS, INC."},"owners":[{"id":135148,"kind":"person","name":"Fujita Noriharu","position":1,"cik":"0001828868","reported_name":"Fujita Noriharu","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class L Common Stock","published_at":"2020-11-05T01:49:14.000Z","date":"2020-10-28","kind":"exercise","acquired":false,"shares":1220,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As of the pricing of the Issuer's initial public offering on October 28, 2020, the Class L common stock held by the reporting person was automatically converted into and reclassified as an aggregate of 15,871 shares of common stock of the Issuer."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As of the pricing of the Issuer's initial public offering on October 28, 2020, the Class L common stock held by the reporting person was automatically converted into and reclassified as an aggregate of 15,871 shares of common stock of the Issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As of the pricing of the Issuer's initial public offering on October 28, 2020, the Class L common stock held by the reporting person was automatically converted into and reclassified as an aggregate of 15,871 shares of common stock of the Issuer."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"As of the pricing of the Issuer's initial public offering on October 28, 2020, the Class L common stock held by the reporting person was automatically converted into and reclassified as an aggregate of 15,871 shares of common stock of the Issuer."}],"balance_after":0,"derivative":{"underlying":"Common Stock"},"source":{"system":"sec-edgar","filing":"0000899243-20-030425","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/866291/000089924320030425/doc4.xml","form_type":"4"}},{"id":2993511,"issuer":{"id":3746,"kind":"organization","name":"ALLEGRO MICROSYSTEMS, INC."},"owners":[{"id":135148,"kind":"person","name":"Fujita Noriharu","position":1,"cik":"0001828868","reported_name":"Fujita Noriharu","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-11-05T01:49:14.000Z","date":"2020-11-02","kind":"grant","acquired":true,"shares":12143,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents an award of Restricted Stock Units (\"RSUs\"). Each RSU represents a contingent right to receive one share of common stock. The RSUs will vest on the date of the first annual meeting of stockholders following the Issuer's initial public offering."}],"balance_after":28014,"source":{"system":"sec-edgar","filing":"0000899243-20-030425","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/866291/000089924320030425/doc4.xml","form_type":"4"}},{"id":2993510,"issuer":{"id":3746,"kind":"organization","name":"ALLEGRO MICROSYSTEMS, INC."},"owners":[{"id":135148,"kind":"person","name":"Fujita Noriharu","position":1,"cik":"0001828868","reported_name":"Fujita Noriharu","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-11-05T01:49:14.000Z","date":"2020-10-28","kind":"exercise","acquired":true,"shares":15871,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As of the pricing of the Issuer's initial public offering on October 28, 2020, the Class L common stock held by the reporting person was automatically converted into and reclassified as an aggregate of 15,871 shares of common stock of the Issuer."}],"balance_after":15871,"source":{"system":"sec-edgar","filing":"0000899243-20-030425","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/866291/000089924320030425/doc4.xml","form_type":"4"}}]}