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The sales were to satisfy tax withholding obligations to be funded by a \"sell to cover\" transaction."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in this line item is a weighted average price. These shares were sold as part of pooled trades for multiple security holders of the Issuer at prices ranging from $19.42 to $19.44, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder 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 the range set forth herein with regard to the pooled trades."}],"balance_after":125041,"source":{"system":"sec-edgar","filing":"0001833462-26-000018","document":"form4-10052026_091043.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1833462/000183346226000018/form4-10052026_091043.xml","form_type":"4"}},{"id":4630970,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Class A Common Stock","published_at":"2026-10-05T21:43:47.000Z","date":"2026-10-02","kind":"sale","planned":false,"acquired":false,"shares":7176,"price":18.9289,"value":135833.7864,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 represent shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units (\"RSUs\"). 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transfers."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers."}],"balance_after":135600,"derivative":{"underlying":"Class A Common Stock","underlying_shares":8000},"source":{"system":"sec-edgar","filing":"0001833462-26-000012","document":"form4-07172026_090724.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000183346226000012/form4-07172026_090724.xml","form_type":"4"}},{"id":706747,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar 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directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers."}],"balance_after":143600,"derivative":{"underlying":"Class A Common 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The sales were to satisfy tax withholding obligations to be funded by a \"sell to cover\" transaction."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in this line item is a weighted average price. These shares were sold as part of block trades for multiple security holders of the Issuer at prices ranging from $13.50 to $13.89, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder 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 the range set forth herein with regard to the block trades."}],"balance_after":112945,"source":{"system":"sec-edgar","filing":"0001833462-26-000010","document":"form4-07062026_100719.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000183346226000010/form4-07062026_100719.xml","form_type":"4"}},{"id":714996,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Class 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directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers."}],"balance_after":143600,"derivative":{"underlying":"Class A Common 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The sales were to satisfy tax withholding obligations to be funded by a \"sell to cover\" transaction."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold as part of a block trade for multiple security holders of the Issuer at prices ranging from $14.61 to $15.09, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder 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 the range set forth herein with regard to the block trade."}],"balance_after":52005,"source":{"system":"sec-edgar","filing":"0001415889-25-000588","document":"form4-01032025_100142.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588925000588/form4-01032025_100142.xml","form_type":"4"}},{"id":1314387,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Class 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transfers."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers."}],"balance_after":54600,"derivative":{"underlying":"Class A Common Stock","underlying_shares":7000},"source":{"system":"sec-edgar","filing":"0001415889-24-029574","document":"form4-12172024_091238.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588924029574/form4-12172024_091238.xml","form_type":"4"}},{"id":1328439,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar 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These shares were sold at prices ranging from $16.50 to $16.555, inclusive. 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These shares were sold at prices ranging from $16.50 to $16.60, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder 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 the range set forth herein."}],"balance_after":44888,"source":{"system":"sec-edgar","filing":"0001415889-24-028308","document":"form4-12042024_101224.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588924028308/form4-12042024_101224.xml","form_type":"4"}},{"id":1342769,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Class A Common 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share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers."}],"balance_after":68600,"derivative":{"underlying":"Class A Common 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These shares were sold at prices ranging from $16.50 to $17.43, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder 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 the range set forth herein."}],"balance_after":49029,"source":{"system":"sec-edgar","filing":"0001415889-24-026950","document":"form4-11152024_091103.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588924026950/form4-11152024_091103.xml","form_type":"4"}},{"id":1363546,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Class A Common Stock","published_at":"2024-11-15T21:17:07.000Z","date":"2024-11-13","kind":"exercise","planned":true,"acquired":true,"shares":21000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers."}],"balance_after":65888,"source":{"system":"sec-edgar","filing":"0001415889-24-026950","document":"form4-11152024_091103.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588924026950/form4-11152024_091103.xml","form_type":"4"}},{"id":1391794,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Restricted Stock Unit","published_at":"2024-10-03T23:45:03.000Z","date":"2024-10-01","kind":"exercise","planned":false,"acquired":false,"shares":4014,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each RSU represents a right to receive one share of the Issuer's Class A Common Stock at the time of settlement for no consideration."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The RSUs vest as to 1/16th of the total shares on April 1, 2024, and 1/16th of the total shares will vest quarterly thereafter, subject to the Reporting Person's provision of service to the Issuer on each vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"RSUs do not expire; they either vest or are canceled prior to the vesting date."}],"balance_after":52186,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":4014},"source":{"system":"sec-edgar","filing":"0001415889-24-024700","document":"form4-10032024_111059.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588924024700/form4-10032024_111059.xml","form_type":"4"}},{"id":1391793,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Restricted Stock Unit","published_at":"2024-10-03T23:45:03.000Z","date":"2024-10-01","kind":"exercise","planned":false,"acquired":false,"shares":4279,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each RSU represents a right to receive one share of the Issuer's Class A Common Stock at the time of settlement for no consideration."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The RSUs vested as to 1/16th of the total award on April 1, 2023, and 1/16th of the total shares will vest quarterly thereafter, subject to the Reporting Person's provision of service to the Issuer on each vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"RSUs do not expire; 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The sales were to satisfy tax withholding obligations to be funded by a \"sell to cover\" transaction."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold as part of block trades for multiple security holders of the Issuer on October 2, 2024 and October 3, 2024 at prices ranging from $14.32 to $14.77, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder 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 the range set forth herein with regard to the block trade."}],"balance_after":44888,"source":{"system":"sec-edgar","filing":"0001415889-24-024700","document":"form4-10032024_111059.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588924024700/form4-10032024_111059.xml","form_type":"4"}},{"id":1391790,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Class A Common Stock","published_at":"2024-10-03T23:45:03.000Z","date":"2024-10-01","kind":"exercise","planned":false,"acquired":true,"shares":10540,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":48967,"source":{"system":"sec-edgar","filing":"0001415889-24-024700","document":"form4-10032024_111059.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588924024700/form4-10032024_111059.xml","form_type":"4"}},{"id":1394268,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Restricted Stock Unit","published_at":"2024-10-02T22:53:44.000Z","date":"2024-09-30","kind":"exercise","planned":false,"acquired":false,"shares":1055,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each RSU represents a right to receive one share of the Issuer's Class A Common Stock at the time of settlement for no consideration."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The RSUs vested as to 1/8 of the total shares on June 30, 2021, and 1/16th of the total shares vest quarterly thereafter, subject to the Reporting Person's provision of service to the Issuer on each vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"RSUs do not expire; they either vest or are canceled prior to the vesting date."}],"balance_after":1055,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":1055},"source":{"system":"sec-edgar","filing":"0001415889-24-024499","document":"form4-10022024_101040.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588924024499/form4-10022024_101040.xml","form_type":"4"}},{"id":1394267,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Class A Common Stock","published_at":"2024-10-02T22:53:44.000Z","date":"2024-10-01","kind":"sale","planned":false,"acquired":false,"shares":412,"price":14.8675,"value":6125.41,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported on this Form 4 represent shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units (\"RSUs\"). The sales were to satisfy tax withholding obligations to be funded by a \"sell to cover\" transaction."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":". The price reported in Column 4 is a weighted average price. These shares were sold as part of a block trade for multiple security holders of the Issuer at prices ranging from $14.82 to $14.91, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder 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 the range set forth herein with regard to the block trade."}],"balance_after":38427,"source":{"system":"sec-edgar","filing":"0001415889-24-024499","document":"form4-10022024_101040.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1422930/000141588924024499/form4-10022024_101040.xml","form_type":"4"}},{"id":1394266,"issuer":{"id":364,"kind":"organization","name":"PubMatic, Inc.","symbol":"PUBM"},"owners":[{"id":22177,"kind":"person","name":"Kumar Mukul","position":1,"cik":"0001833462","reported_name":"Kumar Mukul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"PRESIDENT, ENGINEERING"}}],"security":"Class 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