{"transactions":[{"id":4619688,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-09-16T20:57:48.000Z","date":"2026-09-14","kind":"grant","planned":false,"acquired":true,"shares":23.4408,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The RSUs, which include an aggregate of 49.2000 Dividend Units, vest in four equal annual installments beginning on April 9, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"The RSUs, which include an aggregate of 49.2000 Dividend Units, vest in four equal annual installments beginning on April 9, 2027."}],"balance_after":6849.2,"derivative":{"underlying":"Common Stock","underlying_shares":23.4408},"source":{"system":"sec-edgar","filing":"0001379160-26-000046","document":"form4-09162026_080943.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000046/form4-09162026_080943.xml","form_type":"4"}},{"id":4619687,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-09-16T20:57:48.000Z","date":"2026-09-14","kind":"grant","planned":false,"acquired":true,"shares":11.4876,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The RSUs, which include an aggregate of 62.5881 Dividend Units, vest in three equal annual installments beginning on May 20, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The RSUs, which include an aggregate of 62.5881 Dividend Units, vest in three equal annual installments beginning on May 20, 2027."}],"balance_after":3356.5881,"derivative":{"underlying":"Common Stock","underlying_shares":11.4876},"source":{"system":"sec-edgar","filing":"0001379160-26-000046","document":"form4-09162026_080943.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000046/form4-09162026_080943.xml","form_type":"4"}},{"id":4619686,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-09-16T20:57:48.000Z","date":"2026-09-14","kind":"grant","planned":false,"acquired":true,"shares":18.5659,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The RSUs, which include an aggregate of 155.8135 Dividend Units, vest in two equal annual installments beginning on April 29, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The RSUs, which include an aggregate of 155.8135 Dividend Units, vest in two equal annual installments beginning on April 29, 2027."}],"balance_after":5424.8135,"derivative":{"underlying":"Common Stock","underlying_shares":18.5659},"source":{"system":"sec-edgar","filing":"0001379160-26-000046","document":"form4-09162026_080943.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000046/form4-09162026_080943.xml","form_type":"4"}},{"id":4619685,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-09-16T20:57:48.000Z","date":"2026-09-14","kind":"grant","planned":false,"acquired":true,"shares":9.9823,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The RSUs, which include an aggregate of 83.7790 Dividend Units, vest in two equal annual installments beginning on April 29, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The RSUs, which include an aggregate of 83.7790 Dividend Units, vest in two equal annual installments beginning on April 29, 2027."}],"balance_after":2916.779,"derivative":{"underlying":"Common Stock","underlying_shares":9.9823},"source":{"system":"sec-edgar","filing":"0001379160-26-000046","document":"form4-09162026_080943.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000046/form4-09162026_080943.xml","form_type":"4"}},{"id":4619684,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-09-16T20:57:48.000Z","date":"2026-09-14","kind":"grant","planned":false,"acquired":true,"shares":9.4349,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The RSUs, which include an aggregate of 116.8150 Dividend Units, vest on April 11, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs, which include an aggregate of 116.8150 Dividend Units, vest on April 11, 2027."}],"balance_after":2756.815,"derivative":{"underlying":"Common Stock","underlying_shares":9.4349},"source":{"system":"sec-edgar","filing":"0001379160-26-000046","document":"form4-09162026_080943.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000046/form4-09162026_080943.xml","form_type":"4"}},{"id":4619683,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-09-16T20:57:48.000Z","date":"2026-09-14","kind":"grant","planned":false,"acquired":true,"shares":5.375,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs, which include an aggregate of 66.5402 Dividend Units, vest on April 11, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The RSUs, which include an aggregate of 66.5402 Dividend Units, vest on April 11, 2027."}],"balance_after":1570.5402,"derivative":{"underlying":"Common Stock","underlying_shares":5.375},"source":{"system":"sec-edgar","filing":"0001379160-26-000046","document":"form4-09162026_080943.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000046/form4-09162026_080943.xml","form_type":"4"}},{"id":1081,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-09-02T21:37:54.000Z","date":"2026-08-31","kind":"sale","planned":true,"acquired":false,"shares":32,"price":174.7834,"value":5593.0688,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $174.70 to $174.85, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 19, 2025."}],"balance_after":103550,"source":{"system":"sec-edgar","filing":"0001379160-26-000043","document":"form4-09022026_090950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000043/form4-09022026_090950.xml","form_type":"4"}},{"id":1080,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-09-02T21:37:54.000Z","date":"2026-08-31","kind":"sale","planned":true,"acquired":false,"shares":268,"price":174.1276,"value":46666.1968,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $173.735 to $174.36, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price\nwithin such range."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 19, 2025."}],"balance_after":103582,"source":{"system":"sec-edgar","filing":"0001379160-26-000043","document":"form4-09022026_090950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000043/form4-09022026_090950.xml","form_type":"4"}},{"id":1079,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-09-02T21:37:54.000Z","date":"2026-08-31","kind":"sale","planned":true,"acquired":false,"shares":4852,"price":173.0412,"value":839595.9024,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $172.58 to $173.5175, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price\nwithin such range."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 19, 2025."}],"balance_after":103850,"source":{"system":"sec-edgar","filing":"0001379160-26-000043","document":"form4-09022026_090950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000043/form4-09022026_090950.xml","form_type":"4"}},{"id":1078,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-09-02T21:37:54.000Z","date":"2026-08-31","kind":"sale","planned":true,"acquired":false,"shares":2348,"price":172.0589,"value":403994.2972,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $171.545 to $172.4575, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price\nwithin such range."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 19, 2025."}],"balance_after":108702,"source":{"system":"sec-edgar","filing":"0001379160-26-000043","document":"form4-09022026_090950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1379160/000137916026000043/form4-09022026_090950.xml","form_type":"4"}},{"id":736687,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-06-16T22:03:49.000Z","date":"2026-06-12","kind":"grant","planned":false,"acquired":true,"shares":12.624,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The RSUs, which include an aggregate of 51.1005 Dividend Units, vest in three equal annual installments beginning on May 20, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"The RSUs, which include an aggregate of 51.1005 Dividend Units, vest in three equal annual installments beginning on May 20, 2027."}],"balance_after":3345.1005,"derivative":{"underlying":"Common Stock","underlying_shares":12.624},"source":{"system":"sec-edgar","filing":"0001379160-26-000037","document":"form4-06162026_100645.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000037/form4-06162026_100645.xml","form_type":"4"}},{"id":736686,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-06-16T22:03:49.000Z","date":"2026-06-12","kind":"grant","planned":false,"acquired":true,"shares":20.4023,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The RSUs, which include an aggregate of 137.2476 Dividend Units, vest in two equal annual installments beginning on April 29, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The RSUs, which include an aggregate of 137.2476 Dividend Units, vest in two equal annual installments beginning on April 29, 2027."}],"balance_after":5406.2476,"derivative":{"underlying":"Common Stock","underlying_shares":20.4023},"source":{"system":"sec-edgar","filing":"0001379160-26-000037","document":"form4-06162026_100645.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000037/form4-06162026_100645.xml","form_type":"4"}},{"id":736685,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-06-16T22:03:49.000Z","date":"2026-06-12","kind":"grant","planned":false,"acquired":true,"shares":10.9697,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The RSUs, which include an aggregate of 73.7967 Dividend Units, vest in two equal annual installments beginning on April 29, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The RSUs, which include an aggregate of 73.7967 Dividend Units, vest in two equal annual installments beginning on April 29, 2027."}],"balance_after":2906.7967,"derivative":{"underlying":"Common Stock","underlying_shares":10.9697},"source":{"system":"sec-edgar","filing":"0001379160-26-000037","document":"form4-06162026_100645.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000037/form4-06162026_100645.xml","form_type":"4"}},{"id":736684,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-06-16T22:03:49.000Z","date":"2026-06-12","kind":"grant","planned":false,"acquired":true,"shares":10.3682,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 19, 2025."}],"balance_after":111050,"source":{"system":"sec-edgar","filing":"0001379160-26-000034","document":"form4-06052026_090653.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000034/form4-06052026_090653.xml","form_type":"4"}},{"id":748579,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-06-05T21:16:58.000Z","date":"2026-06-03","kind":"sale","planned":true,"acquired":false,"shares":319,"price":136.8585,"value":43657.8615,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 19, 2025."}],"balance_after":112150,"source":{"system":"sec-edgar","filing":"0001379160-26-000034","document":"form4-06052026_090653.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000034/form4-06052026_090653.xml","form_type":"4"}},{"id":748578,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-06-05T21:16:58.000Z","date":"2026-06-03","kind":"sale","planned":true,"acquired":false,"shares":5581,"price":135.9903,"value":758961.8643,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 19, 2025."}],"balance_after":112469,"source":{"system":"sec-edgar","filing":"0001379160-26-000034","document":"form4-06052026_090653.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000034/form4-06052026_090653.xml","form_type":"4"}},{"id":748577,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-06-05T21:16:58.000Z","date":"2026-06-03","kind":"sale","planned":true,"acquired":false,"shares":500,"price":134.4754,"value":67237.7,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 19, 2025."}],"balance_after":118050,"source":{"system":"sec-edgar","filing":"0001379160-26-000034","document":"form4-06052026_090653.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000034/form4-06052026_090653.xml","form_type":"4"}},{"id":766599,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-05-22T21:53:19.000Z","date":"2026-05-20","kind":"exercise","planned":false,"acquired":false,"shares":1110.8255,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs, which include an aggregate of 110.5170 Dividend Units, vest in two equal annual installments beginning on April 11, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The RSUs, which include an aggregate of 110.5170 Dividend Units, vest in two equal annual installments beginning on April 11, 2026."}],"balance_after":3118.517,"derivative":{"underlying":"Common Stock","underlying_shares":11.1802},"source":{"system":"sec-edgar","filing":"0001379160-26-000016","document":"form4-03242026_100313.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000016/form4-03242026_100313.xml","form_type":"4"}},{"id":833887,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-19T21:58:26.000Z","date":"2026-03-17","kind":"sale","planned":true,"acquired":false,"shares":75,"price":159.145,"value":11935.875,"ownership":{"direct":true},"footnotes":[{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":115113,"source":{"system":"sec-edgar","filing":"0001379160-26-000013","document":"form4-03192026_090322.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000013/form4-03192026_090322.xml","form_type":"4"}},{"id":833886,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-19T21:58:26.000Z","date":"2026-03-17","kind":"sale","planned":true,"acquired":false,"shares":1375,"price":158.3604,"value":217745.55,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $157.86 to $158.76, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":115188,"source":{"system":"sec-edgar","filing":"0001379160-26-000013","document":"form4-03192026_090322.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000013/form4-03192026_090322.xml","form_type":"4"}},{"id":833885,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-19T21:58:26.000Z","date":"2026-03-17","kind":"sale","planned":true,"acquired":false,"shares":275,"price":157.6587,"value":43356.1425,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $156.87 to $157.775, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":116563,"source":{"system":"sec-edgar","filing":"0001379160-26-000013","document":"form4-03192026_090322.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000013/form4-03192026_090322.xml","form_type":"4"}},{"id":833884,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-19T21:58:26.000Z","date":"2026-03-17","kind":"sale","planned":true,"acquired":false,"shares":1575,"price":156.3264,"value":246214.08,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $155.84 to $156.665, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":116838,"source":{"system":"sec-edgar","filing":"0001379160-26-000013","document":"form4-03192026_090322.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000013/form4-03192026_090322.xml","form_type":"4"}},{"id":833883,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-19T21:58:26.000Z","date":"2026-03-17","kind":"sale","planned":true,"acquired":false,"shares":1704,"price":154.9991,"value":264118.4664,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $154.505 to $155.39, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":118413,"source":{"system":"sec-edgar","filing":"0001379160-26-000013","document":"form4-03192026_090322.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000013/form4-03192026_090322.xml","form_type":"4"}},{"id":833882,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-19T21:58:26.000Z","date":"2026-03-17","kind":"sale","planned":true,"acquired":false,"shares":1484,"price":153.9111,"value":228404.0724,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $153.48 to $154.3975, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":120117,"source":{"system":"sec-edgar","filing":"0001379160-26-000013","document":"form4-03192026_090322.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000013/form4-03192026_090322.xml","form_type":"4"}},{"id":833881,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-19T21:58:26.000Z","date":"2026-03-17","kind":"sale","planned":true,"acquired":false,"shares":1012,"price":152.6587,"value":154490.6044,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price\nwithin such range."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":121601,"source":{"system":"sec-edgar","filing":"0001379160-26-000013","document":"form4-03192026_090322.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000013/form4-03192026_090322.xml","form_type":"4"}},{"id":846916,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2026-03-12T21:35:40.000Z","date":"2026-03-10","kind":"exercise","planned":false,"acquired":false,"shares":2825.3641,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."}],"balance_after":124045.3641,"source":{"system":"sec-edgar","filing":"0001379160-26-000006","document":"form4-03122026_090336.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000006/form4-03122026_090336.xml","form_type":"4"}},{"id":846911,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-12T21:35:40.000Z","date":"2026-03-10","kind":"tax_withholding","planned":false,"acquired":false,"shares":907,"price":171.75,"value":155777.25,"ownership":{"direct":true},"balance_after":121220,"source":{"system":"sec-edgar","filing":"0001379160-26-000006","document":"form4-03122026_090336.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000006/form4-03122026_090336.xml","form_type":"4"}},{"id":846910,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-12T21:35:40.000Z","date":"2026-03-10","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":88.4555,"price":171.75,"value":15192.232125,"ownership":{"direct":true},"balance_after":122127,"source":{"system":"sec-edgar","filing":"0001379160-26-000006","document":"form4-03122026_090336.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916026000006/form4-03122026_090336.xml","form_type":"4"}},{"id":846909,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2026-03-12T21:35:40.000Z","date":"2026-03-10","kind":"exercise","planned":false,"acquired":true,"shares":1962.4555,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":116545,"source":{"system":"sec-edgar","filing":"0001379160-25-000010","document":"form4-12052025_101216.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000010/form4-12052025_101216.xml","form_type":"4"}},{"id":979423,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-12-05T22:48:20.000Z","date":"2025-12-03","kind":"sale","planned":true,"acquired":false,"shares":912,"price":183.98,"value":167789.76,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":117858,"source":{"system":"sec-edgar","filing":"0001379160-25-000010","document":"form4-12052025_101216.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000010/form4-12052025_101216.xml","form_type":"4"}},{"id":979422,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-12-05T22:48:20.000Z","date":"2025-12-03","kind":"sale","planned":true,"acquired":false,"shares":3295,"price":182.9063,"value":602676.2585,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":118770,"source":{"system":"sec-edgar","filing":"0001379160-25-000010","document":"form4-12052025_101216.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000010/form4-12052025_101216.xml","form_type":"4"}},{"id":979421,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-12-05T22:48:20.000Z","date":"2025-12-03","kind":"sale","planned":true,"acquired":false,"shares":1198,"price":181.9374,"value":217961.0052,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $181.33 to $182.29, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":122065,"source":{"system":"sec-edgar","filing":"0001379160-25-000010","document":"form4-12052025_101216.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000010/form4-12052025_101216.xml","form_type":"4"}},{"id":979420,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-12-05T22:48:20.000Z","date":"2025-12-03","kind":"sale","planned":true,"acquired":false,"shares":682,"price":180.6869,"value":123228.4658,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $180.27 to $181.23, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":123263,"source":{"system":"sec-edgar","filing":"0001379160-25-000010","document":"form4-12052025_101216.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000010/form4-12052025_101216.xml","form_type":"4"}},{"id":979419,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-12-05T22:48:20.000Z","date":"2025-12-03","kind":"sale","planned":true,"acquired":false,"shares":100,"price":178.78,"value":17878.0,"ownership":{"direct":true},"footnotes":[{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":123945,"source":{"system":"sec-edgar","filing":"0001379160-25-000010","document":"form4-12052025_101216.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000010/form4-12052025_101216.xml","form_type":"4"}},{"id":1039689,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2025-09-16T23:02:06.000Z","date":"2025-09-12","kind":"grant","planned":false,"acquired":true,"shares":10.8892,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The RSUs, which include an aggregate of 22.8004 Dividend Units, vest in four equal annual installments beginning on May 20, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"The RSUs, which include an aggregate of 22.8004 Dividend Units, vest in four equal annual installments beginning on May 20, 2026."}],"balance_after":4414.8004,"derivative":{"underlying":"Common Stock","underlying_shares":10.8892},"source":{"system":"sec-edgar","filing":"0001379160-25-000004","document":"form4-09162025_110902.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000004/form4-09162025_110902.xml","form_type":"4"}},{"id":1039688,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2025-09-16T23:02:06.000Z","date":"2025-09-12","kind":"grant","planned":false,"acquired":true,"shares":10.6441,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The RSUs, which include an aggregate of 66.3701 Dividend Units, vest in three equal annual installments beginning on April 29, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The RSUs, which include an aggregate of 66.3701 Dividend Units, vest in three equal annual installments beginning on April 29, 2026."}],"balance_after":4315.3701,"derivative":{"underlying":"Common Stock","underlying_shares":10.6441},"source":{"system":"sec-edgar","filing":"0001379160-25-000004","document":"form4-09162025_110902.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000004/form4-09162025_110902.xml","form_type":"4"}},{"id":1039687,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2025-09-16T23:02:06.000Z","date":"2025-09-12","kind":"grant","planned":false,"acquired":true,"shares":13.4127,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The RSUs, which include an aggregate of 158.8772 Dividend Units, vest in two equal annual installments beginning on April 11, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The RSUs, which include an aggregate of 158.8772 Dividend Units, vest in two equal annual installments beginning on April 11, 2026."}],"balance_after":5437.8772,"derivative":{"underlying":"Common Stock","underlying_shares":13.4127},"source":{"system":"sec-edgar","filing":"0001379160-25-000004","document":"form4-09162025_110902.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000004/form4-09162025_110902.xml","form_type":"4"}},{"id":1039686,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2025-09-16T23:02:06.000Z","date":"2025-09-12","kind":"grant","planned":false,"acquired":true,"shares":7.6426,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The RSUs, which include an aggregate of 90.5136 Dividend Units, vest in two equal annual installments beginning on April 11, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The RSUs, which include an aggregate of 90.5136 Dividend Units, vest in two equal annual installments beginning on April 11, 2026."}],"balance_after":3098.5136,"derivative":{"underlying":"Common Stock","underlying_shares":7.6426},"source":{"system":"sec-edgar","filing":"0001379160-25-000004","document":"form4-09162025_110902.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000004/form4-09162025_110902.xml","form_type":"4"}},{"id":1039685,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2025-09-16T23:02:06.000Z","date":"2025-09-12","kind":"grant","planned":false,"acquired":true,"shares":6.949,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The RSUs, which include an aggregate of 119.3415 Dividend Units, vest on March 10, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs, which include an aggregate of 119.3415 Dividend Units, vest on March 10, 2026."}],"balance_after":2817.3415,"derivative":{"underlying":"Common Stock","underlying_shares":6.949},"source":{"system":"sec-edgar","filing":"0001379160-25-000004","document":"form4-09162025_110902.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000004/form4-09162025_110902.xml","form_type":"4"}},{"id":1039684,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2025-09-16T23:02:06.000Z","date":"2025-09-12","kind":"grant","planned":false,"acquired":true,"shares":4.8267,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs, which include an aggregate of 82.8831 Dividend Units, vest on March 10, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The RSUs, which include an aggregate of 82.8831 Dividend Units, vest on March 10, 2026."}],"balance_after":1956.8831,"derivative":{"underlying":"Common Stock","underlying_shares":4.8267},"source":{"system":"sec-edgar","filing":"0001379160-25-000004","document":"form4-09162025_110902.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000137916025000004/form4-09162025_110902.xml","form_type":"4"}},{"id":1064388,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-18T21:55:59.000Z","date":"2025-08-14","kind":"sale","planned":true,"acquired":false,"shares":362,"price":190.88,"value":69098.56,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $190.5675 to $191.5025, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":124045,"source":{"system":"sec-edgar","filing":"0001415889-25-022201","document":"form4-08182025_090855.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925022201/form4-08182025_090855.xml","form_type":"4"}},{"id":1064387,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-18T21:55:59.000Z","date":"2025-08-14","kind":"sale","planned":true,"acquired":false,"shares":1110,"price":189.7169,"value":210585.759,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $189.35 to $190.10, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":124407,"source":{"system":"sec-edgar","filing":"0001415889-25-022201","document":"form4-08182025_090855.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925022201/form4-08182025_090855.xml","form_type":"4"}},{"id":1064386,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-18T21:55:59.000Z","date":"2025-08-14","kind":"sale","planned":true,"acquired":false,"shares":763,"price":188.4256,"value":143768.7328,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $188.33 to $188.9675, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":125517,"source":{"system":"sec-edgar","filing":"0001415889-25-022201","document":"form4-08182025_090855.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925022201/form4-08182025_090855.xml","form_type":"4"}},{"id":1064385,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-18T21:55:59.000Z","date":"2025-08-14","kind":"sale","planned":true,"acquired":false,"shares":200,"price":186.9726,"value":37394.52,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $186.93 to $187.35, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":126280,"source":{"system":"sec-edgar","filing":"0001415889-25-022201","document":"form4-08182025_090855.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925022201/form4-08182025_090855.xml","form_type":"4"}},{"id":1064384,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-18T21:55:59.000Z","date":"2025-08-14","kind":"sale","planned":true,"acquired":false,"shares":1603,"price":186.5866,"value":299098.3198,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $185.92 to $186.83, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":126480,"source":{"system":"sec-edgar","filing":"0001415889-25-022201","document":"form4-08182025_090855.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925022201/form4-08182025_090855.xml","form_type":"4"}},{"id":1064383,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-18T21:55:59.000Z","date":"2025-08-14","kind":"sale","planned":true,"acquired":false,"shares":3462,"price":185.424,"value":641937.888,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $184.91 to $185.87, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2024."}],"balance_after":128083,"source":{"system":"sec-edgar","filing":"0001415889-25-022201","document":"form4-08182025_090855.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925022201/form4-08182025_090855.xml","form_type":"4"}},{"id":1070629,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-11T23:14:08.000Z","date":"2025-08-08","kind":"sale","planned":false,"acquired":false,"shares":483,"price":187.4076,"value":90517.8708,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $187.23 to $188.055, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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":131545,"source":{"system":"sec-edgar","filing":"0001415889-25-021459","document":"form4-08112025_110804.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925021459/form4-08112025_110804.xml","form_type":"4"}},{"id":1070628,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-11T23:14:08.000Z","date":"2025-08-08","kind":"sale","planned":false,"acquired":false,"shares":286,"price":186.6463,"value":53380.8418,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $186.20 to $187.10, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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":132028,"source":{"system":"sec-edgar","filing":"0001415889-25-021459","document":"form4-08112025_110804.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925021459/form4-08112025_110804.xml","form_type":"4"}},{"id":1070627,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-11T23:14:08.000Z","date":"2025-08-08","kind":"sale","planned":false,"acquired":false,"shares":2903,"price":185.787,"value":539339.661,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $185.215 to $186.915, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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":132314,"source":{"system":"sec-edgar","filing":"0001415889-25-021459","document":"form4-08112025_110804.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925021459/form4-08112025_110804.xml","form_type":"4"}},{"id":1070626,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-11T23:14:08.000Z","date":"2025-08-08","kind":"sale","planned":false,"acquired":false,"shares":1128,"price":184.6954,"value":208336.4112,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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":135217,"source":{"system":"sec-edgar","filing":"0001415889-25-021459","document":"form4-08112025_110804.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925021459/form4-08112025_110804.xml","form_type":"4"}},{"id":1070625,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-11T23:14:08.000Z","date":"2025-08-07","kind":"sale","planned":false,"acquired":false,"shares":600,"price":188.4317,"value":113059.02,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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":136945,"source":{"system":"sec-edgar","filing":"0001415889-25-021459","document":"form4-08112025_110804.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925021459/form4-08112025_110804.xml","form_type":"4"}},{"id":1070623,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Common Stock","published_at":"2025-08-11T23:14:08.000Z","date":"2025-08-07","kind":"sale","planned":false,"acquired":false,"shares":3000,"price":186.6978,"value":560093.4,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide the Issuer, any security holder of the Issuer, 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":138545,"source":{"system":"sec-edgar","filing":"0001415889-25-021459","document":"form4-08112025_110804.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1053706/000141588925021459/form4-08112025_110804.xml","form_type":"4"}},{"id":1108560,"issuer":{"id":923,"kind":"organization","name":"CRA INTERNATIONAL, INC.","symbol":"CRAI"},"owners":[{"id":924,"kind":"person","name":"Maleh Paul A","position":1,"cik":"0001379160","reported_name":"Maleh Paul A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT AND CEO"}}],"security":"Restricted Stock Units","published_at":"2025-06-17T21:26:19.000Z","date":"2025-06-13","kind":"grant","planned":false,"acquired":true,"shares":11.9112,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. 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