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The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each RSU was granted on May 14, 2026, under the 2020 Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each RSU was granted on May 14, 2026, under the 2020 Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. 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One-third of the RSUs vested and settled on May 11, 2026.  The remaining two-thirds of the RSUs will vest and settle on April 1, 2027, and April 1, 2028."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each restricted stock unit (\"RSU\") was granted on May 11 2026, pursuant to the terms of Mr. Resnick's employment agreement, under the 2020 Incentive Plan and represents a right to receive one share of common stock. One-third of the RSUs vested and settled on May 11, 2026.  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The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported if the Company's stock price achieves certain thresholds prior to the end of the period ending on March 31, 2029 (2026 LTI)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Each PSU was granted on May 11, 2026, pursuant to the terms of Mr. Resnick's employment agreement, under the 2020 Incentive Plan. Each PSU represents a conditional right to receive one share of Company common stock. 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The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported if the Company's stock price achieves certain thresholds prior to the end of the period ending on April 1, 2028 (2025 LTI)."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each Certara, Inc. (\"Company\") performance stock unit (\"PSU\") was granted on May 11, 2026, pursuant to the terms of Mr. Resnick's employment agreement, under the Certara 2020 Incentive Plan (the \"2020 Incentive Plan\"). Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported if the Company's stock price achieves certain thresholds prior to the end of the period ending on April 1, 2028 (2025 LTI)."}],"balance_after":268949,"derivative":{"underlying":"Common Stock","underlying_shares":268949},"source":{"system":"sec-edgar","filing":"0002104700-26-000006","document":"form4-05132026_080516.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1827090/000210470026000006/form4-05132026_080516.xml","form_type":"4"}},{"id":780282,"issuer":{"id":787,"kind":"organization","name":"Certara, Inc.","symbol":"CERT"},"owners":[{"id":47577,"kind":"person","name":"Resnick Jon Matthew","position":1,"cik":"0002104700","reported_name":"Resnick Jon Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-13T20:53:20.000Z","date":"2026-05-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":24377,"price":6.31,"value":153818.87,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares of Certara withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnotes 1 and 3, exempt under Rule 16b-3."}],"balance_after":35389,"source":{"system":"sec-edgar","filing":"0002104700-26-000006","document":"form4-05132026_080516.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1827090/000210470026000006/form4-05132026_080516.xml","form_type":"4"}},{"id":780281,"issuer":{"id":787,"kind":"organization","name":"Certara, Inc.","symbol":"CERT"},"owners":[{"id":47577,"kind":"person","name":"Resnick Jon Matthew","position":1,"cik":"0002104700","reported_name":"Resnick Jon Matthew","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-13T20:53:20.000Z","date":"2026-05-11","kind":"exercise","planned":false,"acquired":true,"shares":59766,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit (\"RSU\") was granted on May 11 2026, pursuant to the terms of Mr. Resnick's employment agreement, under the 2020 Incentive Plan and represents a right to receive one share of common stock. One-third of the RSUs vested and settled on May 11, 2026.  The remaining two-thirds of the RSUs will vest and settle on April 1, 2027, and April 1, 2028."}],"balance_after":59766,"source":{"system":"sec-edgar","filing":"0002104700-26-000006","document":"form4-05132026_080516.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1827090/000210470026000006/form4-05132026_080516.xml","form_type":"4"}},{"id":781096,"issuer":{"id":787,"kind":"organization","name":"Certara, Inc.","symbol":"CERT"},"owners":[{"id":42478,"kind":"person","name":"Corcoran Daniel","position":1,"cik":"0002025227","reported_name":"Corcoran Daniel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and General Counsel"}}],"security":"Performance Stock Units","published_at":"2026-05-13T20:50:18.000Z","date":"2026-05-11","kind":"grant","planned":false,"acquired":true,"shares":111111,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Company PSU was granted on May 11, 2026, pursuant to the terms of the 2026 Long-Term Incentive Plan for Company executives  approved by the Compensation Committee of the Company's Board of Directors, under the 2020 Incentive Plan. Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported based on the Company's performance against certain total shareholder return thresholds through the period ending on March 31, 2029."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each Company PSU was granted on May 11, 2026, pursuant to the terms of the 2026 Long-Term Incentive Plan for Company executives  approved by the Compensation Committee of the Company's Board of Directors, under the 2020 Incentive Plan. Each PSU represents a conditional right to receive one share of Company common stock. 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The RSUs will vest and settle in three equal installments on April 1, 2027, April 1, 2028, and April 1, 2029."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each restricted stock unit (\"RSU\") was granted on May 11, 2026, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2027, April 1, 2028, and April 1, 2029."}],"balance_after":74074,"derivative":{"expiration_date":"2029-04-01","underlying":"Common Stock","underlying_shares":74074},"source":{"system":"sec-edgar","filing":"0002025227-26-000006","document":"form4-05132026_080514.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2025227/000202522726000006/form4-05132026_080514.xml","form_type":"4"}},{"id":781094,"issuer":{"id":787,"kind":"organization","name":"Certara, Inc.","symbol":"CERT"},"owners":[{"id":42478,"kind":"person","name":"Corcoran Daniel","position":1,"cik":"0002025227","reported_name":"Corcoran Daniel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and General Counsel"}}],"security":"Performance Stock Units","published_at":"2026-05-13T20:50:18.000Z","date":"2026-05-11","kind":"grant","planned":false,"acquired":true,"shares":48820,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Certara, Inc. (\"Company\") performance stock unit (\"PSU\") was granted on May 20, 2025, pursuant to the terms of the 2025 Long-Term Incentive Plan for Company executives  approved by the Compensation Committee of the Company's Board of Directors, under the Certara 2020 Incentive Plan (the \"2020 Incentive Plan\"). Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported based on the Company's performance against certain total shareholder return thresholds through the period ending on March 31, 2028."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Certara, Inc. (\"Company\") performance stock unit (\"PSU\") was granted on May 20, 2025, pursuant to the terms of the 2025 Long-Term Incentive Plan for Company executives  approved by the Compensation Committee of the Company's Board of Directors, under the Certara 2020 Incentive Plan (the \"2020 Incentive Plan\"). Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported based on the Company's performance against certain total shareholder return thresholds through the period ending on March 31, 2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Certara, Inc. (\"Company\") performance stock unit (\"PSU\") was granted on May 20, 2025, pursuant to the terms of the 2025 Long-Term Incentive Plan for Company executives  approved by the Compensation Committee of the Company's Board of Directors, under the Certara 2020 Incentive Plan (the \"2020 Incentive Plan\"). Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported based on the Company's performance against certain total shareholder return thresholds through the period ending on March 31, 2028."}],"balance_after":48820,"derivative":{"underlying":"Common Stock","underlying_shares":48820},"source":{"system":"sec-edgar","filing":"0002025227-26-000006","document":"form4-05132026_080514.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2025227/000202522726000006/form4-05132026_080514.xml","form_type":"4"}},{"id":781093,"issuer":{"id":787,"kind":"organization","name":"Certara, Inc.","symbol":"CERT"},"owners":[{"id":42478,"kind":"person","name":"Corcoran Daniel","position":1,"cik":"0002025227","reported_name":"Corcoran Daniel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and General Counsel"}}],"security":"Performance Stock Units","published_at":"2026-05-13T20:50:18.000Z","date":"2026-05-11","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":48820,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Certara, Inc. (\"Company\") performance stock unit (\"PSU\") was granted on May 20, 2025, pursuant to the terms of the 2025 Long-Term Incentive Plan for Company executives  approved by the Compensation Committee of the Company's Board of Directors, under the Certara 2020 Incentive Plan (the \"2020 Incentive Plan\"). Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported based on the Company's performance against certain total shareholder return thresholds through the period ending on March 31, 2028."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Certara, Inc. (\"Company\") performance stock unit (\"PSU\") was granted on May 20, 2025, pursuant to the terms of the 2025 Long-Term Incentive Plan for Company executives  approved by the Compensation Committee of the Company's Board of Directors, under the Certara 2020 Incentive Plan (the \"2020 Incentive Plan\"). Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported based on the Company's performance against certain total shareholder return thresholds through the period ending on March 31, 2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Certara, Inc. (\"Company\") performance stock unit (\"PSU\") was granted on May 20, 2025, pursuant to the terms of the 2025 Long-Term Incentive Plan for Company executives  approved by the Compensation Committee of the Company's Board of Directors, under the Certara 2020 Incentive Plan (the \"2020 Incentive Plan\"). Each PSU represents a conditional right to receive one share of Company common stock. 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Each PSU represents a conditional right to receive one share of Company common stock. The reporting person will be entitled to receive a number of shares between 0% and 200% of the target amount reported based on the Company's performance against certain total shareholder return thresholds through the period ending on March 31, 2029."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each Company PSU was granted on May 11, 2026, pursuant to the terms of the 2026 Long-Term Incentive Plan for Company executives  approved by the Compensation Committee of the Company's Board of Directors, under the 2020 Incentive Plan. Each PSU represents a conditional right to receive one share of Company common stock. 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The RSUs will vest and settle in three equal installments on April 1, 2027, April 1, 2028, and April 1, 2029."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each restricted stock unit (\"RSU\") was granted on May 11, 2026, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. 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(\"Company\") performance stock unit (\"PSU\") was granted on May 20, 2025, pursuant to the terms of the 2025 Long-Term Incentive Plan for Company executives approved by the Compensation Committee of the Company's Board of Directors, under the Certara 2020 Incentive Plan (the \"2020 Incentive Plan\"). Each PSU represents a conditional right to receive one share of Company common stock. 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One-third of the RSUs vested and were settled on April 1, 2026.  The remaining two-thirds of the RSUs will vest and settle in equal parts on April 1, 2027 an April 1, 2028."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Each restricted stock unit was granted on May 20, 2025, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2026.  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