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Accordingly, the first line of Table 2 of this Form 4 reflects this correction."},{"field":"kind","element":"transactionCoding","label":"F2","text":"The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option award vests upon the achievement of a closing price hurdle following Beam Therapeutics Inc.'s initial public offering (which closing price hurdle has been achieved) in three equal installments on December 21, 2021, June 30, 2022 and December 31, 2022."}],"balance_after":9106,"derivative":{"exercise_price":0.67,"expiration_date":"2028-05-08","underlying":"Common Stock","underlying_shares":18211},"source":{"system":"sec-edgar","filing":"0000899243-22-039103","document":"doc4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1745999/000089924322039103/doc4a.xml","form_type":"4/A","original_submission_date":"2022-12-14"}},{"id":2086554,"issuer":{"id":4227,"kind":"organization","name":"Beam Therapeutics Inc.","symbol":"BEAM"},"owners":[{"id":36344,"kind":"person","name":"Ciaramella Giuseppe","position":1,"cik":"0001786322","reported_name":"Ciaramella Giuseppe","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CSO"}}],"security":"Stock Option (Right to Buy)","published_at":"2022-12-15T02:50:16.000Z","date":"2022-12-12","kind":"exercise","acquired":false,"shares":8652,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The stock option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The option award vests upon the achievement of a closing price hurdle following BEAM's initial public offering (which closing price hurdle has been achieved) in three equal installments on December 21, 2021, June 30, 2022 and December 31, 2022."}],"balance_after":4326,"derivative":{"exercise_price":4.22,"expiration_date":"2029-02-13","underlying":"Common Stock","underlying_shares":8652},"source":{"system":"sec-edgar","filing":"0000899243-22-038538","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1745999/000089924322038538/doc4.xml","form_type":"4"}},{"id":2086553,"issuer":{"id":4227,"kind":"organization","name":"Beam Therapeutics Inc.","symbol":"BEAM"},"owners":[{"id":36344,"kind":"person","name":"Ciaramella Giuseppe","position":1,"cik":"0001786322","reported_name":"Ciaramella Giuseppe","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CSO"}}],"security":"Stock Option (Right to Buy)","published_at":"2022-12-15T02:50:16.000Z","date":"2022-12-12","kind":"exercise","acquired":false,"shares":18211,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The stock option exercises reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"25% of the shares subject to the stock option vested on the first anniversary of the vesting commencement date, February 26, 2018, and the remaining shares vested in 36 substantially equal monthly installments thereafter."}],"balance_after":189491,"derivative":{"exercise_price":0.67,"expiration_date":"2028-05-08","underlying":"Common Stock","underlying_shares":18211},"source":{"system":"sec-edgar","filing":"0000899243-22-038538","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1745999/000089924322038538/doc4.xml","form_type":"4"}},{"id":2086552,"issuer":{"id":4227,"kind":"organization","name":"Beam Therapeutics Inc.","symbol":"BEAM"},"owners":[{"id":36344,"kind":"person","name":"Ciaramella Giuseppe","position":1,"cik":"0001786322","reported_name":"Ciaramella Giuseppe","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CSO"}}],"security":"Common Stock","published_at":"2022-12-15T02:50:16.000Z","date":"2022-12-12","kind":"sale","acquired":false,"shares":5383,"price":43.87,"value":236152.21,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.  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Each sale price reported is a weighted average price.  The Reporting Person undertakes to provide Beam Therapeutics Inc. (\"BEAM\"), any security holder of BEAM or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price.  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Each sale price reported is a weighted average price.  The Reporting Person undertakes to provide Beam Therapeutics Inc. (\"BEAM\"), any security holder of BEAM or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price.  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Each sale price reported is a weighted average price.  The Reporting Person undertakes to provide Beam Therapeutics Inc. (\"BEAM\"), any security holder of BEAM or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  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The option award vests (i) fifty percent (50%) upon the Company achieving a certain development milestone related to base editing applications, and (ii) fifty percent (50%) upon the achievement of a closing price hurdle following the Company's IPO (which closing price hurdle has been achieved).  The portion of the award subject to satisfaction of the Price Condition is scheduled to vest in three equal installments on December 21, 2021, June 30, 2022 and December 31, 2022. Upon the closing of the IPO, vesting of the portion of the option award subject to condition (ii) was tied only to the passage of time and the market price of the Company's securities and thus, 50% of the option award became reportable.  The Original Form 4 failed to report the portion of the option award that became reportable upon the closing of the Company's IPO."}],"balance_after":12978,"derivative":{"exercise_price":4.22,"expiration_date":"2029-02-13","underlying":"Common Stock","underlying_shares":12978},"source":{"system":"sec-edgar","filing":"0000899243-21-036823","document":"doc4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1745999/000089924321036823/doc4a.xml","form_type":"4/A","original_submission_date":"2020-02-11"}},{"id":2563118,"issuer":{"id":4227,"kind":"organization","name":"Beam Therapeutics Inc.","symbol":"BEAM"},"owners":[{"id":36344,"kind":"person","name":"Ciaramella Giuseppe","position":1,"cik":"0001786322","reported_name":"Ciaramella Giuseppe","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CSO"}}],"security":"Stock Option (Right to Buy)","published_at":"2021-09-21T22:00:16.000Z","date":"2020-02-05","kind":"grant","acquired":true,"shares":27317,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"On February 11, 2020, the reporting person filed a Form 4 which inadvertently omitted certain options held by the reporting person on such date (the \"Original Form 4\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"On May 8, 2018, the reporting person was granted an option to purchase 54,635 shares of common stock of Beam Therapeutics Inc. (the \"Company\"). The option award vests (i) fifty percent (50%) upon the Company achieving a certain development milestone related to base editing applications, and (ii) fifty percent (50%) upon the achievement of a closing price hurdle following the Company's initial public offering (\"IPO\") (which closing price hurdle has been achieved) (the \"Price Condition\"). The portion of the award subject to satisfaction of the Price Condition is scheduled to vest in three equal installments on December 21, 2021, June 30, 2022 and December 31, 2022. Upon the closing of the IPO, vesting of the portion of the option award subject to condition (ii) was tied only to the passage of time and the market price of the Company's securities and thus, 50% of the option award became reportable."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"(Continued from Footnote 2) The Original Form 4 failed to report the portion of the option award that became reportable upon the closing of the Company's IPO."}],"balance_after":23317,"derivative":{"exercise_price":0.67,"expiration_date":"2028-05-08","underlying":"Common Stock","underlying_shares":27317},"source":{"system":"sec-edgar","filing":"0000899243-21-036823","document":"doc4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1745999/000089924321036823/doc4a.xml","form_type":"4/A","original_submission_date":"2020-02-11"}},{"id":2650238,"issuer":{"id":4227,"kind":"organization","name":"Beam Therapeutics Inc.","symbol":"BEAM"},"owners":[{"id":36344,"kind":"person","name":"Ciaramella Giuseppe","position":1,"cik":"0001786322","reported_name":"Ciaramella Giuseppe","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CSO"}}],"security":"Stock Option (Right to Buy)","published_at":"2021-06-30T22:00:34.000Z","date":"2021-06-28","kind":"exercise","acquired":false,"shares":78580,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The stock option exercise reported in this Form 4 was effected pursuant to a 10b5-1 trading plan."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"25% of the shares subject to the stock option shall vest on the first anniversary of the vesting commencement date, February 5, 2020, and at a rate of 2.78% each month thereafter until the option is fully vested."}],"balance_after":432313,"derivative":{"exercise_price":17,"expiration_date":"2030-02-05","underlying":"Common Stock","underlying_shares":78580},"source":{"system":"sec-edgar","filing":"0000899243-21-026780","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1745999/000089924321026780/doc4.xml","form_type":"4"}},{"id":2650237,"issuer":{"id":4227,"kind":"organization","name":"Beam Therapeutics Inc.","symbol":"BEAM"},"owners":[{"id":36344,"kind":"person","name":"Ciaramella Giuseppe","position":1,"cik":"0001786322","reported_name":"Ciaramella Giuseppe","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CSO"}}],"security":"Common Stock","published_at":"2021-06-30T22:00:34.000Z","date":"2021-06-28","kind":"sale","acquired":false,"shares":2173,"price":110,"value":239030.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. Each sale price reported is a weighted average price. The Reporting Person undertakes to provide to Beam Therapeutics Inc. (\"BEAM\"), any security holder of BEAM or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. 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Each sale price reported is a weighted average price. The Reporting Person undertakes to provide to Beam Therapeutics Inc. (\"BEAM\"), any security holder of BEAM or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. 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Each sale price reported is a weighted average price. The Reporting Person undertakes to provide to Beam Therapeutics Inc. (\"BEAM\"), any security holder of BEAM or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.00 to $108.90, inclusive."}],"balance_after":56790,"source":{"system":"sec-edgar","filing":"0000899243-21-026780","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1745999/000089924321026780/doc4.xml","form_type":"4"}},{"id":2650234,"issuer":{"id":4227,"kind":"organization","name":"Beam Therapeutics Inc.","symbol":"BEAM"},"owners":[{"id":36344,"kind":"person","name":"Ciaramella Giuseppe","position":1,"cik":"0001786322","reported_name":"Ciaramella Giuseppe","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CSO"}}],"security":"Common Stock","published_at":"2021-06-30T22:00:34.000Z","date":"2021-06-28","kind":"sale","acquired":false,"shares":10829,"price":107.3,"value":1161951.7,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. Each sale price reported is a weighted average price. The Reporting Person undertakes to provide to Beam Therapeutics Inc. (\"BEAM\"), any security holder of BEAM or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. 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