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On April 23, 2021, the compensation committee of the board of directors of the company determined that the performance criteria had been met, resulting in the vesting of these shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Since the date of the reporting person's most recently filed Form 4, an aggregate of 551,655 shares were transferred from various Grantor Retained Annuity Trusts to the reporting person's individual brokerage account, 902,943 shares were transferred from the reporting person's individual brokerage account to various Grantor Retained Annuity Trusts and 9,052 shares were transferred from a trust account to a Grantor Retained Annuity Trust."}],"balance_after":282693,"source":{"system":"sec-edgar","filing":"0000891092-21-003849","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109221003849/ownership.xml","form_type":"4"}},{"id":3115717,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2020-06-10T20:45:05.000Z","date":"2020-06-08","kind":"tax_withholding","acquired":false,"shares":52935,"price":63.9,"value":3382546.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents shares withheld by the company for payment of tax liability incident to the vesting of PRSUs originally granted to the reporting person on March 17, 2017."}],"balance_after":494806,"source":{"system":"sec-edgar","filing":"0000891092-20-007551","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109220007551/ownership.xml","form_type":"4"}},{"id":3115716,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2020-06-10T20:45:05.000Z","date":"2020-06-08","kind":"grant","acquired":true,"shares":131387,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On March 17, 2017, the reporting person was granted performance restricted stock units (\"PRSUs\") which vest based on the company's return on equity as compared to that of an industry peer group. On June 8, 2020, the compensation committee of the board of directors of the company determined that the performance criteria had been met, resulting in the vesting of these shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Since the date of the reporting person's most recently filed Form 4, an aggregate of 48,990 shares were transferred from various Grantor Retained Annuity Trusts to the reporting person's individual brokerage account, 450,000 shares were transferred from the reporting person's individual brokerage account to a Grantor Retained Annuity Trust and 7,855 shares were transferred from a Grantor Retained Annuity Trust to a trust for the benefit of the reporting person's children."}],"balance_after":547741,"source":{"system":"sec-edgar","filing":"0000891092-20-007551","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109220007551/ownership.xml","form_type":"4"}},{"id":3516299,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2019-05-22T22:11:17.000Z","date":"2019-05-22","kind":"sale","acquired":false,"shares":60541,"price":79.84,"value":4833593.44,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The reported sale price reflects the weighted average price of multiple transactions on May 22, 2019. The actual sales prices for the transactions ranged from $79.71 to $79.96. The reporting person undertakes to provide to Omnicom Group Inc., any security holder of Omnicom Group Inc. 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."}],"balance_after":817364,"source":{"system":"sec-edgar","filing":"0000891092-19-005971","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109219005971/ownership.xml","form_type":"4"}},{"id":3516298,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2019-05-22T22:11:17.000Z","date":"2019-05-20","kind":"tax_withholding","acquired":false,"shares":50570,"price":79.3,"value":4010201.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents shares withheld by the company for payment of tax liability incident to the vesting of PRSUs originally granted to the reporting person on March 31, 2016."}],"balance_after":877905,"source":{"system":"sec-edgar","filing":"0000891092-19-005971","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109219005971/ownership.xml","form_type":"4"}},{"id":3516297,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2019-05-22T22:11:17.000Z","date":"2019-05-20","kind":"grant","acquired":true,"shares":121111,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On March 31, 2016, the reporting person was granted performance restricted stock units (\"PRSUs\") which vest based on the company's return on equity as compared to that of an industry peer group. On May 20, 2019, the compensation committee of the board of directors of the company determined that the performance criteria had been met, resulting in the vesting of these shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Since the date of the reporting person's most recently filed Form 4, an aggregate of 274,643 shares were transferred from various Grantor Retained Annuity Trusts to the reporting person's individual brokerage account."}],"balance_after":928475,"source":{"system":"sec-edgar","filing":"0000891092-19-005971","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109219005971/ownership.xml","form_type":"4"}},{"id":3921519,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman, President and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2018-05-23T20:30:14.000Z","date":"2018-05-21","kind":"tax_withholding","acquired":false,"shares":55393,"price":75.29,"value":4170538.97,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares withheld by the company for payment of tax liability incident to the vesting of PRSUs originally granted to the reporting person on April 1, 2015."}],"balance_after":532721,"source":{"system":"sec-edgar","filing":"0000891092-18-004437","document":"e78974-lot1_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109218004437/e78974-lot1_4.xml","form_type":"4"}},{"id":3921518,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman, President and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2018-05-23T20:30:14.000Z","date":"2018-05-21","kind":"grant","acquired":true,"shares":132660,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On April 1, 2015, the reporting person was granted performance restricted stock units (\"PRSUs\") which vest based on the company's return on equity as compared to that of an industry peer group. On May 21, 2018, the compensation committee of the board of directors of the company determined that the performance criteria had been met, resulting in the vesting of these shares."}],"balance_after":588114,"source":{"system":"sec-edgar","filing":"0000891092-18-004437","document":"e78974-lot1_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109218004437/e78974-lot1_4.xml","form_type":"4"}},{"id":4305947,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2017-05-25T21:02:24.000Z","date":"2017-01-11","kind":"gift","acquired":false,"shares":8416,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See fn"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"On January 11, 2017, the reporting person was automatically replaced as the sole trustee of the 2014 Grantor Retained Annuity Trust and does not have the right to replace the trustee."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"By 2014 Grantor Retained Annuity Trust."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000891092-17-004109","document":"e74287_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109217004109/e74287_4.xml","form_type":"4"}},{"id":4305946,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2017-05-25T21:02:24.000Z","date":"2017-05-24","kind":"tax_withholding","acquired":false,"shares":42949,"price":83.15,"value":3571209.35,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents shares withheld by the company for payment of tax liability incident to the vesting of PRSUs originally granted to the reporting person on April 8, 2014."}],"balance_after":455454,"source":{"system":"sec-edgar","filing":"0000891092-17-004109","document":"e74287_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109217004109/e74287_4.xml","form_type":"4"}},{"id":4305945,"issuer":{"id":3205,"kind":"organization","name":"OMNICOM GROUP INC.","symbol":"OMC"},"owners":[{"id":44065,"kind":"person","name":"WREN JOHN","position":1,"cik":"0001247069","reported_name":"WREN JOHN","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock, par value $0.15 per share","published_at":"2017-05-25T21:02:24.000Z","date":"2017-05-24","kind":"grant","acquired":true,"shares":96830,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On April 8, 2014, the reporting person was granted performance restricted stock units (\"PRSUs\") which vest based on the company's return on equity as compared to that of an industry peer group. On May 24, 2017, the compensation committee of the board of directors of the company determined that the performance criteria had been met, resulting in the vesting of these shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"On March 27, 2017, 21,134 shares were transferred from the 2014 Grantor Retained Annuity Trust to the reporting person's individual brokerage account. On April 20, 2017, the reporting person transferred 172,105 shares from his individual brokerage account to each of 2016 Grantor Retained Annuity Trusts #1, #2 and #3."}],"balance_after":498403,"source":{"system":"sec-edgar","filing":"0000891092-17-004109","document":"e74287_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/29989/000089109217004109/e74287_4.xml","form_type":"4"}}]}