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The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":44994326,"source":{"system":"sec-edgar","filing":"0001032235-25-000014","document":"wk-form4_1761254131.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000014/wk-form4_1761254131.xml","form_type":"4"}},{"id":1014348,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-10-23T21:15:34.000Z","date":"2025-10-21","kind":"sale","planned":true,"acquired":false,"shares":5158,"price":55.88,"value":288229.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average of sale prices, ranging from $55.23  to $56.22. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":45014700,"source":{"system":"sec-edgar","filing":"0001032235-25-000014","document":"wk-form4_1761254131.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000014/wk-form4_1761254131.xml","form_type":"4"}},{"id":1014347,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-10-23T21:15:34.000Z","date":"2025-10-21","kind":"sale","planned":true,"acquired":false,"shares":4506,"price":54.62,"value":246117.72,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average of sale prices, ranging from $54.18  to $55.15. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":45019858,"source":{"system":"sec-edgar","filing":"0001032235-25-000014","document":"wk-form4_1761254131.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000014/wk-form4_1761254131.xml","form_type":"4"}},{"id":1035817,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-09-19T20:34:57.000Z","date":"2025-09-17","kind":"sale","planned":true,"acquired":false,"shares":4054,"price":58.72,"value":238050.88,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average of sale prices, ranging from $58.65 to $58.90. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":45024364,"source":{"system":"sec-edgar","filing":"0001032235-25-000012","document":"wk-form4_1758314094.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000012/wk-form4_1758314094.xml","form_type":"4"}},{"id":1035816,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-09-19T20:34:57.000Z","date":"2025-09-17","kind":"sale","planned":true,"acquired":false,"shares":40946,"price":58.26,"value":2385513.96,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average of sale prices, ranging from $57.65 to $58.64. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":45028418,"source":{"system":"sec-edgar","filing":"0001032235-25-000012","document":"wk-form4_1758314094.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000012/wk-form4_1758314094.xml","form_type":"4"}},{"id":1038517,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-09-17T20:21:32.000Z","date":"2025-09-16","kind":"sale","planned":true,"acquired":false,"shares":2328,"price":58.93,"value":137189.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Represents the weighted average of sale prices, ranging from $58.79 to $59.25. The reporting person has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Reflects exempt transfers between the reporting person and the grantor retained annuity trusts described on this Form 4."}],"balance_after":45069364,"source":{"system":"sec-edgar","filing":"0001032235-25-000010","document":"wk-form4_1758140489.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000010/wk-form4_1758140489.xml","form_type":"4"}},{"id":1038516,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-09-17T20:21:32.000Z","date":"2025-09-16","kind":"sale","planned":true,"acquired":false,"shares":42672,"price":58.18,"value":2482656.96,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler on November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Represents the weighted average of sale prices, ranging from $57.79 to $58.78. The reporting person has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Reflects exempt transfers between the reporting person and the grantor retained annuity trusts described on this Form 4."}],"balance_after":45071692,"source":{"system":"sec-edgar","filing":"0001032235-25-000010","document":"wk-form4_1758140489.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000010/wk-form4_1758140489.xml","form_type":"4"}},{"id":1038515,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-09-17T20:21:32.000Z","date":"2025-09-16","kind":"gift","planned":true,"acquired":true,"shares":9737104,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Alan N. 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The original grant was 24,976 restricted stock units, with 20% vesting on March 2, 2022, and the remaining 80% vesting in equal quarterly installments over\nthe remaining four years."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"All share amounts in this Form 4 have been restated to reflect a 2-for-1 forward stock split of Pegasystems Inc.'s common stock effectuated on June 20, 2025."}],"balance_after":4996,"derivative":{"exercise_price":0,"exercise_date":"2022-03-02","expiration_date":"2026-03-02","underlying":"Common stock","underlying_shares":2496},"source":{"system":"sec-edgar","filing":"0001032235-25-000008","document":"wk-form4_1757019651.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000008/wk-form4_1757019651.xml","form_type":"4"}},{"id":1048599,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-09-04T21:00:54.000Z","date":"2025-09-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":1025,"price":54.21,"value":55565.25,"ownership":{"direct":true},"balance_after":32918163,"source":{"system":"sec-edgar","filing":"0001032235-25-000008","document":"wk-form4_1757019651.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000008/wk-form4_1757019651.xml","form_type":"4"}},{"id":1048598,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-09-04T21:00:54.000Z","date":"2025-09-02","kind":"exercise","planned":false,"acquired":true,"shares":2496,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a 5% vesting on September 2, 2025. The original grant was 24,976 restricted stock units, with 20% vesting on March 2, 2022, and the remaining 80% vesting in equal quarterly installments over\nthe remaining four years."}],"balance_after":32919188,"source":{"system":"sec-edgar","filing":"0001032235-25-000008","document":"wk-form4_1757019651.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000008/wk-form4_1757019651.xml","form_type":"4"}},{"id":1072602,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-08-07T21:09:17.000Z","date":"2025-08-06","kind":"sale","planned":true,"acquired":false,"shares":45000,"price":57.35,"value":2580750.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average of sale prices, ranging from $56.86 to $57.69. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":32916692,"source":{"system":"sec-edgar","filing":"0001032235-25-000006","document":"wk-form4_1754600952.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000006/wk-form4_1754600952.xml","form_type":"4"}},{"id":1072601,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-08-07T21:09:17.000Z","date":"2025-08-05","kind":"sale","planned":true,"acquired":false,"shares":7464,"price":58.34,"value":435449.76,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average of sale prices, ranging from $57.94 to $58.75. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":32961692,"source":{"system":"sec-edgar","filing":"0001032235-25-000006","document":"wk-form4_1754600952.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000006/wk-form4_1754600952.xml","form_type":"4"}},{"id":1072600,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-08-07T21:09:17.000Z","date":"2025-08-05","kind":"sale","planned":true,"acquired":false,"shares":37536,"price":57.32,"value":2151563.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average of sale prices, ranging from $56.94 to $57.93. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":32969156,"source":{"system":"sec-edgar","filing":"0001032235-25-000006","document":"wk-form4_1754600952.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000103223525000006/wk-form4_1754600952.xml","form_type":"4"}},{"id":1088201,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-07-14T21:10:52.000Z","date":"2025-07-10","kind":"sale","planned":true,"acquired":false,"shares":12236,"price":52.14,"value":637985.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average of sale prices, ranging from $51.98 to $52.82. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":33006692,"source":{"system":"sec-edgar","filing":"0001013857-25-000201","document":"wk-form4_1752527445.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000201/wk-form4_1752527445.xml","form_type":"4"}},{"id":1088200,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-07-14T21:10:52.000Z","date":"2025-07-10","kind":"sale","planned":true,"acquired":false,"shares":32764,"price":51.6,"value":1690622.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average of sale prices, ranging from $50.98 to $51.97. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":33018928,"source":{"system":"sec-edgar","filing":"0001013857-25-000201","document":"wk-form4_1752527445.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000201/wk-form4_1752527445.xml","form_type":"4"}},{"id":1088913,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-07-11T21:09:10.000Z","date":"2025-07-09","kind":"sale","planned":false,"acquired":false,"shares":45000,"price":53.34,"value":2400300.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average of sale prices, ranging from $53.04 to $53.95. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Beneficial ownership totals reflect Pegasystems Inc.'s 2-for-1 forward stock split effectuated on June 20, 2025, and a correction to the number of shares directly held, which was previously incorrectly reported as higher (on a pre-split basis) due to an administrative error."}],"balance_after":33051692,"source":{"system":"sec-edgar","filing":"0001013857-25-000199","document":"wk-form4_1752268142.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000199/wk-form4_1752268142.xml","form_type":"4"}},{"id":1088912,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-07-11T21:05:49.000Z","date":"2025-04-17","kind":"sale","planned":true,"acquired":false,"shares":1072,"price":69.19,"value":74171.68,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Represents the weighted average of sale prices, ranging from $69.08 to $69.35. The individual has provided the Company, and undertakes to provide to the staff of the Securities and Exchange\nCommission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"The original Form 4, filed on April 21, 2025, reflected an administrative error in the amount of shares sold being overstated by 54 shares, which then led to the underreporting of Mr. Trefler's beneficial ownership by the same. This corrected form reflects the increase of Mr. Trefler's beneficial ownership by 54 shares."}],"balance_after":17153114,"source":{"system":"sec-edgar","filing":"0001013857-25-000197","document":"wk-form4a_1752267941.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000197/wk-form4a_1752267941.xml","form_type":"4/A","original_submission_date":"2025-04-21"}},{"id":1088911,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-07-11T21:05:49.000Z","date":"2025-04-17","kind":"sale","planned":true,"acquired":false,"shares":30428,"price":68.52,"value":2084926.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"shares","element":"transactionShares","label":"F5","text":"The original form 4, filed on April 21, 2025, is amended to correct an administrative error which overstated the amount of shares sold in this transaction by 54 shares."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Represents the weighted average of sale prices, ranging from $68.01 to $69.00. The individual has provided the Company, and undertakes to provide to the staff of the Securities and Exchange\nCommission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"The original Form 4, filed on April 21, 2025, reflected an administrative error in the amount of shares sold being overstated by 54 shares, which then led to the underreporting of Mr. Trefler's beneficial ownership by the same. This corrected form reflects the increase of Mr. Trefler's beneficial ownership by 54 shares."}],"balance_after":17154186,"source":{"system":"sec-edgar","filing":"0001013857-25-000197","document":"wk-form4a_1752267941.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000197/wk-form4a_1752267941.xml","form_type":"4/A","original_submission_date":"2025-04-21"}},{"id":1088910,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-07-11T21:05:49.000Z","date":"2025-04-16","kind":"sale","planned":true,"acquired":false,"shares":1549,"price":69.5,"value":107655.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average of sale prices, ranging from $69.35 to $69.95. The individual has provided the Company, and undertakes to provide to the staff of the Securities and Exchange\nCommission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17184614,"source":{"system":"sec-edgar","filing":"0001013857-25-000197","document":"wk-form4a_1752267941.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000197/wk-form4a_1752267941.xml","form_type":"4/A","original_submission_date":"2025-04-21"}},{"id":1088909,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-07-11T21:05:49.000Z","date":"2025-04-16","kind":"sale","planned":true,"acquired":false,"shares":15001,"price":68.85,"value":1032818.85,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average of sale prices, ranging from $68.38 to $69.34. The individual has provided the Company, and undertakes to provide to the staff of the Securities and Exchange\nCommission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17186163,"source":{"system":"sec-edgar","filing":"0001013857-25-000197","document":"wk-form4a_1752267941.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000197/wk-form4a_1752267941.xml","form_type":"4/A","original_submission_date":"2025-04-21"}},{"id":1088908,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-07-11T21:05:49.000Z","date":"2025-04-16","kind":"sale","planned":true,"acquired":false,"shares":14950,"price":67.86,"value":1014507.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average of sale prices, ranging from $67.35 to $68.33. The individual has provided the Company, and undertakes to provide to the staff of the Securities and Exchange\nCommission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17201164,"source":{"system":"sec-edgar","filing":"0001013857-25-000197","document":"wk-form4a_1752267941.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000197/wk-form4a_1752267941.xml","form_type":"4/A","original_submission_date":"2025-04-21"}},{"id":1104249,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-06-23T21:04:21.000Z","date":"2025-06-18","kind":"sale","planned":true,"acquired":false,"shares":4484,"price":101.22,"value":453870.48,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average of sale prices, ranging from $101.06 to $101.46. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17027892,"source":{"system":"sec-edgar","filing":"0001013857-25-000193","document":"wk-form4_1750712654.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000193/wk-form4_1750712654.xml","form_type":"4"}},{"id":1104248,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-06-23T21:04:21.000Z","date":"2025-06-18","kind":"sale","planned":true,"acquired":false,"shares":27016,"price":100.76,"value":2722132.16,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average of sale prices, ranging from $100.06 to $101.05. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17032376,"source":{"system":"sec-edgar","filing":"0001013857-25-000193","document":"wk-form4_1750712654.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000193/wk-form4_1750712654.xml","form_type":"4"}},{"id":1106812,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-06-18T21:02:33.000Z","date":"2025-06-17","kind":"sale","planned":true,"acquired":false,"shares":6697,"price":101.75,"value":681419.75,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average of sale prices, ranging from $101.49 to $102.07. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17059392,"source":{"system":"sec-edgar","filing":"0001013857-25-000189","document":"wk-form4_1750280546.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000189/wk-form4_1750280546.xml","form_type":"4"}},{"id":1106811,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-06-18T21:02:33.000Z","date":"2025-06-17","kind":"sale","planned":true,"acquired":false,"shares":21108,"price":101,"value":2131908.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average of sale prices, ranging from $100.50 to $101.48. 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The original grant was 24,976 restricted stock units, with 20% vesting on March 2, 2022, and the remaining 80% vesting in equal quarterly installments over the remaining four years."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Once vested, the shares of common stock are not subject to expiration."}],"balance_after":3746,"derivative":{"exercise_price":0,"exercise_date":"2022-03-02","underlying":"Common stock","underlying_shares":1249},"source":{"system":"sec-edgar","filing":"0001013857-25-000154","document":"wk-form4_1748986057.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000154/wk-form4_1748986057.xml","form_type":"4"}},{"id":1126157,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-06-03T21:27:54.000Z","date":"2025-06-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":417,"price":98.15,"value":40928.55,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Tendered to issuer to satisfy tax withholding obligations of the reporting person, exempted pursuant to Rule 16b-3(e)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Does not include shares of common stock subject to unvested restricted stock units and/or options awards."}],"balance_after":17090892,"source":{"system":"sec-edgar","filing":"0001013857-25-000154","document":"wk-form4_1748986057.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000154/wk-form4_1748986057.xml","form_type":"4"}},{"id":1126156,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-06-03T21:27:54.000Z","date":"2025-06-02","kind":"exercise","planned":false,"acquired":true,"shares":1249,"price":98.15,"value":122589.35,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a 5% vesting on June 2, 2025. The original grant was 24,976 restricted stock units, with 20% vesting on March 2, 2022, and the remaining 80% vesting in equal quarterly installments over the remaining four years."}],"balance_after":17091309,"source":{"system":"sec-edgar","filing":"0001013857-25-000154","document":"wk-form4_1748986057.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000154/wk-form4_1748986057.xml","form_type":"4"}},{"id":1129755,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-05-30T20:48:08.000Z","date":"2025-05-28","kind":"sale","planned":true,"acquired":false,"shares":2509,"price":97.21,"value":243899.89,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average of sale prices, ranging from $97.15 to $97.28 . The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Does not include shares of common stock subject to unvested restricted stock units and/or options awards."}],"balance_after":17090060,"source":{"system":"sec-edgar","filing":"0001013857-25-000142","document":"wk-form4_1748638022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000142/wk-form4_1748638022.xml","form_type":"4"}},{"id":1129754,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-05-30T20:48:08.000Z","date":"2025-05-28","kind":"sale","planned":true,"acquired":false,"shares":28991,"price":96.65,"value":2801980.15,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average of sale prices, ranging from $96.15 to $97.14 . The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17092569,"source":{"system":"sec-edgar","filing":"0001013857-25-000142","document":"wk-form4_1748638022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000142/wk-form4_1748638022.xml","form_type":"4"}},{"id":1132459,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-05-28T21:10:40.000Z","date":"2025-05-27","kind":"sale","planned":true,"acquired":false,"shares":179,"price":97.68,"value":17484.72,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average of sale prices, ranging from $97.66 to $97.73. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Does not include shares of common stock subject to unvested restricted stock units and/or options awards."}],"balance_after":17121560,"source":{"system":"sec-edgar","filing":"0001013857-25-000140","document":"wk-form4_1748466631.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000140/wk-form4_1748466631.xml","form_type":"4"}},{"id":1132458,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-05-28T21:10:40.000Z","date":"2025-05-27","kind":"sale","planned":true,"acquired":false,"shares":13869,"price":97.08,"value":1346402.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average of sale prices, ranging from $96.64 to $97.61. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17121739,"source":{"system":"sec-edgar","filing":"0001013857-25-000140","document":"wk-form4_1748466631.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000140/wk-form4_1748466631.xml","form_type":"4"}},{"id":1132457,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-05-28T21:10:40.000Z","date":"2025-05-27","kind":"sale","planned":true,"acquired":false,"shares":17452,"price":96.02,"value":1675741.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average of sale prices, ranging from $95.63 to $96.62. The individual has provided the Company, and undertakes to provide to the staff of the Security and Exchange Commission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17135608,"source":{"system":"sec-edgar","filing":"0001013857-25-000140","document":"wk-form4_1748466631.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000140/wk-form4_1748466631.xml","form_type":"4"}},{"id":1168728,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-04-21T21:09:56.000Z","date":"2025-04-17","kind":"sale","planned":true,"acquired":false,"shares":1072,"price":69.19,"value":74171.68,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Represents the weighted average of sale prices, ranging from $69.08 to $69.35. The individual has provided the Company, and undertakes to provide to the staff of the Securities and Exchange\nCommission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"Does not include shares of common stock subject to unvested restricted stock units and/or options awards."}],"balance_after":17153060,"source":{"system":"sec-edgar","filing":"0001013857-25-000099","document":"wk-form4_1745269789.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000099/wk-form4_1745269789.xml","form_type":"4"}},{"id":1168727,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-04-21T21:09:56.000Z","date":"2025-04-17","kind":"sale","planned":true,"acquired":false,"shares":30482,"price":68.52,"value":2088626.64,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Represents the weighted average of sale prices, ranging from $68.01 to $69.00. The individual has provided the Company, and undertakes to provide to the staff of the Securities and Exchange\nCommission or any security holder of the Company, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":17154132,"source":{"system":"sec-edgar","filing":"0001013857-25-000099","document":"wk-form4_1745269789.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1013857/000101385725000099/wk-form4_1745269789.xml","form_type":"4"}},{"id":1168726,"issuer":{"id":309,"kind":"organization","name":"PEGASYSTEMS INC","symbol":"PEGA"},"owners":[{"id":62643,"kind":"person","name":"TREFLER ALAN","position":1,"cik":"0001032235","reported_name":"TREFLER ALAN","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"C.E.O. & Chairman"}}],"security":"Common stock","published_at":"2025-04-21T21:09:56.000Z","date":"2025-04-16","kind":"sale","planned":true,"acquired":false,"shares":1549,"price":69.5,"value":107655.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Sold pursuant to a pre-arranged trading plan adopted by Mr. Trefler November 6, 2024 under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average of sale prices, ranging from $69.35 to $69.95. 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