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Each restricted stock unit represents the right to receive one ordinary share."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 16,277  restricted stock units which are scheduled to vest in three equal annual installments beginning on March 11, 2026, the first anniversary of the grant date."}],"balance_after":189739,"source":{"system":"sec-edgar","filing":"0001628280-25-058151","document":"wk-form4_1766163202.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000162828025058151/wk-form4_1766163202.xml","form_type":"4"}},{"id":1034883,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See remarks"}}],"security":"Restricted Stock Units (PSP)","published_at":"2025-09-22T13:23:26.000Z","date":"2025-09-18","kind":"grant","planned":false,"acquired":true,"shares":776,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"In accordance with the terms of the applicable outstanding restricted stock unit award, additional restricted stock units accrued as dividend equivalents in connection with the Issuer's payment of a quarterly dividend of $0.4308 per ordinary share. Such additional restricted stock units are subject to the same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The 80,431 restricted stock units vest and are settled as follows:(i) 44,048 restricted stock units in February 2026, (ii) and 36,383 restricted stock units in February 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The 80,431 restricted stock units vest and are settled as follows:(i) 44,048 restricted stock units in February 2026, (ii) and 36,383 restricted stock units in February 2027."}],"balance_after":80431,"derivative":{"underlying":"Ordinary Shares","underlying_shares":776},"source":{"system":"sec-edgar","filing":"0001104659-25-091927","document":"tm2526572-14_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000110465925091927/tm2526572-14_4seq1.xml","form_type":"4"}},{"id":1034882,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See remarks"}}],"security":"Ordinary Shares","published_at":"2025-09-22T13:23:26.000Z","date":"2025-09-18","kind":"grant","planned":false,"acquired":true,"shares":155,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"In accordance with the terms of the applicable outstanding restricted stock unit award, additional restricted stock units accrued as dividend equivalents in connection with the Issuer's payment of a quarterly dividend of $0.4308 per ordinary share. Such additional restricted stock units are subject to the same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 16,098 restricted stock units which are scheduled to vest in three equal annual installments beginning on March 11, 2026, the first anniversary of the grant date."}],"balance_after":189560,"source":{"system":"sec-edgar","filing":"0001104659-25-091927","document":"tm2526572-14_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000110465925091927/tm2526572-14_4seq1.xml","form_type":"4"}},{"id":1104059,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"see remarks"}}],"security":"Restricted Stock Units (PSP)","published_at":"2025-06-23T19:00:06.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"In accordance with the terms of the applicable outstanding restricted stock unit award, additional restricted stock units accrued as dividend equivalents in connection with the Issuer's payment of a quarterly dividend of $0.4308 per ordinary share. Such additional restricted stock units are subject to the same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The 79,655 restricted stock units vest and are settled as follows:(i) 43,623 restricted stock units in February 2026, (ii) and 36,032 restricted stock units in February 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The 79,655 restricted stock units vest and are settled as follows:(i) 43,623 restricted stock units in February 2026, (ii) and 36,032 restricted stock units in February 2027."}],"balance_after":79655,"derivative":{"underlying":"Ordinary Shares","underlying_shares":800},"source":{"system":"sec-edgar","filing":"0001062993-25-012025","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299325012025/form4.xml","form_type":"4"}},{"id":1104058,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"see remarks"}}],"security":"Ordinary Shares","published_at":"2025-06-23T19:00:06.000Z","date":"2025-06-18","kind":"grant","planned":false,"acquired":true,"shares":160,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"In accordance with the terms of the applicable outstanding restricted stock unit award, additional restricted stock units accrued as dividend equivalents in connection with the Issuer's payment of a quarterly dividend of $0.4308 per ordinary share. Such additional restricted stock units are subject to the same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 15,943 restricted stock units which are scheduled to vest in three equal annual installments beginning on March 11, 2026, the first anniversary of the grant date."}],"balance_after":189405,"source":{"system":"sec-edgar","filing":"0001062993-25-012025","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299325012025/form4.xml","form_type":"4"}},{"id":1195928,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Restricted Stock Units (PSP)","published_at":"2025-03-20T22:10:47.000Z","date":"2025-03-18","kind":"grant","planned":false,"acquired":true,"shares":745,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"In accordance with the terms of outstanding restricted stock unit awards, additional restricted stock units accrued as dividend equivalents in connection with the Issuer's payment of a quarterly dividend of $0.4308 per ordinary share. Such additional restricted stock units are subject to the same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"In accordance with the terms of outstanding restricted stock unit awards, additional restricted stock units accrued as dividend equivalents in connection with the Issuer's payment of a quarterly dividend of $0.4308 per ordinary share. Such additional restricted stock units are subject to the same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The 78,855 restricted stock units vest and are settled as follows: (i) 43,185 restricted stock units in February 2026 and (ii) 35,670 restricted stock units in February 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The 78,855 restricted stock units vest and are settled as follows: (i) 43,185 restricted stock units in February 2026 and (ii) 35,670 restricted stock units in February 2027."}],"balance_after":78855,"derivative":{"underlying":"Ordinary Shares","underlying_shares":745},"source":{"system":"sec-edgar","filing":"0001104659-25-026267","document":"tm259928-7_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000110465925026267/tm259928-7_4seq1.xml","form_type":"4"}},{"id":1208092,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2025-03-13T20:18:23.000Z","date":"2025-03-11","kind":"grant","planned":false,"acquired":true,"shares":15783,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On March 11, 2025, the reporting person was granted 15,783 restricted stock units (RSUs). Each RSU represents a contingent right to receive one Ordinary Share. The RSUs are scheduled to vest in three equal annual installments beginning on the first anniversary of the grant date."}],"balance_after":189245,"source":{"system":"sec-edgar","filing":"0001062993-25-005378","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299325005378/form4.xml","form_type":"4"}},{"id":1264355,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Restricted Stock Units (DBP)","published_at":"2025-02-18T22:52:09.000Z","date":"2025-02-14","kind":"exercise","planned":false,"acquired":false,"shares":9462,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Reflects the vesting and settlement of deferred bonus plan awards granted on 28 March 2022 and performance share plan awards granted on 28 March 2022."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Reflects the vesting and settlement of deferred bonus plan awards granted on 28 March 2022 and performance share plan awards granted on 28 March 2022."}],"balance_after":23195,"derivative":{"exercise_price":0,"underlying":"Ordinary Shares","underlying_shares":9462},"source":{"system":"sec-edgar","filing":"0001062993-25-002725","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299325002725/form4.xml","form_type":"4"}},{"id":1264354,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Restricted Stock Units (PSP)","published_at":"2025-02-18T22:52:09.000Z","date":"2025-02-14","kind":"exercise","planned":false,"acquired":false,"shares":31484,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Reflects the vesting and settlement of deferred bonus plan awards granted on 28 March 2022 and performance share plan awards granted on 28 March 2022."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Reflects the vesting and settlement of deferred bonus plan awards granted on 28 March 2022 and performance share plan awards granted on 28 March 2022."}],"balance_after":78110,"derivative":{"exercise_price":0,"underlying":"Ordinary Shares","underlying_shares":31484},"source":{"system":"sec-edgar","filing":"0001062993-25-002725","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299325002725/form4.xml","form_type":"4"}},{"id":1264353,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer 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awards."}],"balance_after":173462,"source":{"system":"sec-edgar","filing":"0001062993-25-002725","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299325002725/form4.xml","form_type":"4"}},{"id":1264352,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Ordinary Shares","published_at":"2025-02-18T22:52:09.000Z","date":"2025-02-14","kind":"exercise","planned":false,"acquired":true,"shares":9462,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Reflects the acquisition of common stock upon vesting and settlement of deferred bonus plan awards. Each deferred bonus plan award represents a right to receive one ordinary share of Smurfit Westrock plc upon vesting and settlement of the applicable award."}],"balance_after":190857,"source":{"system":"sec-edgar","filing":"0001062993-25-002725","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299325002725/form4.xml","form_type":"4"}},{"id":1264351,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Ordinary Shares","published_at":"2025-02-18T22:52:09.000Z","date":"2025-02-14","kind":"exercise","planned":false,"acquired":true,"shares":31484,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Reflects the acquisition of common stock upon vesting and settlement of performance share plan awards. Each performance share plan award represents a right to receive one ordinary share of Smurfit Westrock plc upon vesting and settlement of the applicable award."}],"balance_after":181395,"source":{"system":"sec-edgar","filing":"0001062993-25-002725","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299325002725/form4.xml","form_type":"4"}},{"id":1324417,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Restricted Stock Units (PSP)","published_at":"2024-12-20T17:34:26.000Z","date":"2024-12-18","kind":"grant","planned":false,"acquired":true,"shares":636,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"In accordance with the terms of the restricted stock unit award, additional restricted stock units accrued as dividend equivalents in connection with the Issuer's payment of a quarterly dividend of $0.3025 per ordinary share. Such additional restricted stock units are subject to the same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The 109,594 restricted stock units vest and are settled as follows: (i) 31,484 restricted stock units in February 2025, (ii) 42,777 restricted stock units in February 2026, (iii) and 35,333 restricted stock units in February 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The 109,594 restricted stock units vest and are settled as follows: (i) 31,484 restricted stock units in February 2025, (ii) 42,777 restricted stock units in February 2026, (iii) and 35,333 restricted stock units in February 2027."}],"balance_after":109594,"derivative":{"underlying":"Ordinary Shares","underlying_shares":636},"source":{"system":"sec-edgar","filing":"0001062993-24-020993","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299324020993/form4.xml","form_type":"4"}},{"id":1343288,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Ordinary Shares","published_at":"2024-12-04T16:06:01.000Z","date":"2024-12-02","kind":"sale","planned":false,"acquired":false,"shares":25000,"price":54.84,"value":1371000.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.65 to $54.91, inclusive. The reporting person undertakes to provide to Smurfit Westrock plc (the Company), any security holder of the Company, 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 ranges set forth in this footnote (1) to this Form 4.  The shares were sold on the London Stock Exchange and the weighted average price of GBP43.27 was converted to USD using the closing European Central Bank rates on 2 December 2024."}],"balance_after":149911,"source":{"system":"sec-edgar","filing":"0001062993-24-020019","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299324020019/form4.xml","form_type":"4"}},{"id":1401767,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Restricted Stock Units (PSP)","published_at":"2024-09-20T20:21:45.000Z","date":"2024-09-18","kind":"grant","planned":false,"acquired":true,"shares":683,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"In accordance with the terms of the restricted stock unit award, additional restricted stock units accrued as dividend equivalents in connection with the Issuer's payment of a quarterly dividend of $0.3025 per ordinary share. Such additional restricted stock units are subject to the same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The 108,958 restricted stock units vest and are settled as follows: (i) 31,301 restricted stock units in February 2025, (ii) 42,529 restricted stock units in February 2026, (iii) and 35,128 restricted stock units in February 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The 108,958 restricted stock units vest and are settled as follows: (i) 31,301 restricted stock units in February 2025, (ii) 42,529 restricted stock units in February 2026, (iii) and 35,128 restricted stock units in February 2027."}],"balance_after":108958,"derivative":{"underlying":"Ordinary Shares","underlying_shares":683},"source":{"system":"sec-edgar","filing":"0001062993-24-016860","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000106299324016860/form4.xml","form_type":"4"}},{"id":1457756,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Restricted Stock Units (PSP)","published_at":"2024-07-10T01:52:04.000Z","date":"2024-07-05","kind":"grant","planned":false,"acquired":true,"shares":108275,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Pursuant to the Transaction Agreement, at the Scheme Effective Time, each performance share plan award (\"PSP Award\") in respect of ordinary shares of Smurfit Kappa was converted into a restricted stock unit award in respect of Smurfit WestRock Shares covering the same number of shares as covered by such PSP Award as of immediately prior to the Scheme Effective Time (with such number of shares determined by deeming the applicable performance goals to be achieved in accordance with the terms and conditions of the Transaction Agreement), and otherwise subject to the same terms and conditions (excluding performance goals) as applied to such PSP Award as of immediately prior to the Scheme Effective Time."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Pursuant to the Transaction Agreement, at the Scheme Effective Time, each performance share plan award (\"PSP Award\") in respect of ordinary shares of Smurfit Kappa was converted into a restricted stock unit award in respect of Smurfit WestRock Shares covering the same number of shares as covered by such PSP Award as of immediately prior to the Scheme Effective Time (with such number of shares determined by deeming the applicable performance goals to be achieved in accordance with the terms and conditions of the Transaction Agreement), and otherwise subject to the same terms and conditions (excluding performance goals) as applied to such PSP Award as of immediately prior to the Scheme Effective Time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Pursuant to the Transaction Agreement, at the Scheme Effective Time, each performance share plan award (\"PSP Award\") in respect of ordinary shares of Smurfit Kappa was converted into a restricted stock unit award in respect of Smurfit WestRock Shares covering the same number of shares as covered by such PSP Award as of immediately prior to the Scheme Effective Time (with such number of shares determined by deeming the applicable performance goals to be achieved in accordance with the terms and conditions of the Transaction Agreement), and otherwise subject to the same terms and conditions (excluding performance goals) as applied to such PSP Award as of immediately prior to the Scheme Effective Time."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Pursuant to the Transaction Agreement, at the Scheme Effective Time, each performance share plan award (\"PSP Award\") in respect of ordinary shares of Smurfit Kappa was converted into a restricted stock unit award in respect of Smurfit WestRock Shares covering the same number of shares as covered by such PSP Award as of immediately prior to the Scheme Effective Time (with such number of shares determined by deeming the applicable performance goals to be achieved in accordance with the terms and conditions of the Transaction Agreement), and otherwise subject to the same terms and conditions (excluding performance goals) as applied to such PSP Award as of immediately prior to the Scheme Effective Time."}],"balance_after":108275,"derivative":{"underlying":"Ordinary Shares","underlying_shares":108275},"source":{"system":"sec-edgar","filing":"0001104659-24-078727","document":"tm2419140-6_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000110465924078727/tm2419140-6_4seq1.xml","form_type":"4"}},{"id":1457755,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Restricted Stock Units (DBP)","published_at":"2024-07-10T01:52:04.000Z","date":"2024-07-05","kind":"grant","planned":false,"acquired":true,"shares":32657,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Pursuant to the Transaction Agreement, at the Scheme Effective Time, each deferred bonus plan award (\"DBP Award\") in respect of ordinary shares of Smurfit Kappa held by the Reporting Person was converted into a restricted stock unit award in respect of Smurfit WestRock Shares covering the same number of shares as covered by, and otherwise subject to the same terms and conditions as applied to, such DBP Award as of immediately prior to the Scheme Effective Time."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Pursuant to the Transaction Agreement, at the Scheme Effective Time, each deferred bonus plan award (\"DBP Award\") in respect of ordinary shares of Smurfit Kappa held by the Reporting Person was converted into a restricted stock unit award in respect of Smurfit WestRock Shares covering the same number of shares as covered by, and otherwise subject to the same terms and conditions as applied to, such DBP Award as of immediately prior to the Scheme Effective Time."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Pursuant to the Transaction Agreement, at the Scheme Effective Time, each deferred bonus plan award (\"DBP Award\") in respect of ordinary shares of Smurfit Kappa held by the Reporting Person was converted into a restricted stock unit award in respect of Smurfit WestRock Shares covering the same number of shares as covered by, and otherwise subject to the same terms and conditions as applied to, such DBP Award as of immediately prior to the Scheme Effective Time."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Pursuant to the Transaction Agreement, at the Scheme Effective Time, each deferred bonus plan award (\"DBP Award\") in respect of ordinary shares of Smurfit Kappa held by the Reporting Person was converted into a restricted stock unit award in respect of Smurfit WestRock Shares covering the same number of shares as covered by, and otherwise subject to the same terms and conditions as applied to, such DBP Award as of immediately prior to the Scheme Effective Time."}],"balance_after":32657,"derivative":{"underlying":"Ordinary Shares","underlying_shares":32657},"source":{"system":"sec-edgar","filing":"0001104659-24-078727","document":"tm2419140-6_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000110465924078727/tm2419140-6_4seq1.xml","form_type":"4"}},{"id":1457754,"issuer":{"id":3199,"kind":"organization","name":"Smurfit Westrock plc","symbol":"SW"},"owners":[{"id":22361,"kind":"person","name":"Mayer Saverio","position":1,"cik":"0002028256","reported_name":"Mayer Saverio","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Ordinary Shares","published_at":"2024-07-10T01:52:04.000Z","date":"2024-07-05","kind":"grant","planned":false,"acquired":true,"shares":174911,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to the Transaction Agreement, dated as of September 12, 2023 (the \"Transaction Agreement\"), by and among Smurfit Kappa Group plc (\"Smurfit Kappa\"), Smurfit WestRock plc (formerly Smurfit WestRock Limited and prior to that known as Cepheidway Limited, \"Smurfit WestRock\"), Sun Merger Sub, LLC and WestRock Company, on July 5, 2024, Smurfit Kappa was acquired by Smurfit WestRock pursuant to a scheme of arrangement (the \"Scheme\") and, in accordance with the Scheme, each ordinary share of Smurfit Kappa held by the Reporting Person was exchanged for one ordinary share of Smurfit WestRock, par value $0.001 per share (each a \"Smurfit WestRock Share\"), at the effective time of the Scheme (the \"Scheme Effective Time\")."}],"balance_after":174911,"source":{"system":"sec-edgar","filing":"0001104659-24-078727","document":"tm2419140-6_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2028256/000110465924078727/tm2419140-6_4seq1.xml","form_type":"4"}}]}