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Of these shares, 43,807 were forfeited and 51,681 vested. 26,704 of the vested shares were withheld by the Issuer to satisfy tax withholding requirements related to the vesting."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares of unvested Restricted Stock (Class A Shares) of the Issuer."}],"balance_after":344327,"source":{"system":"sec-edgar","filing":"0001104659-21-030938","document":"tm218483-4_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/876883/000110465921030938/tm218483-4_4seq1.xml","form_type":"4"}},{"id":2823024,"issuer":{"id":4480,"kind":"organization","name":"Stagwell Inc","symbol":"STGW"},"owners":[{"id":142052,"kind":"person","name":"Ross David Corwin","position":1,"cik":"0001699282","reported_name":"Ross David Corwin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Class A Subordinate Voting Shares","published_at":"2021-03-03T00:29:11.000Z","date":"2021-02-26","kind":"disposition_to_issuer","acquired":false,"shares":43807,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"95,488 shares of Restricted Stock (Class A Shares) of the Issuer awarded to the Reporting Person were eligible for vesting on February 26, 2021, subject to achievement of financial performance targets and continued employment. Of these shares, 43,807 were forfeited and 51,681 vested. 26,704 of the vested shares were withheld by the Issuer to satisfy tax withholding requirements related to the vesting."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares of unvested Restricted Stock (Class A Shares) of the Issuer."}],"balance_after":371031,"source":{"system":"sec-edgar","filing":"0001104659-21-030938","document":"tm218483-4_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/876883/000110465921030938/tm218483-4_4seq1.xml","form_type":"4"}},{"id":2823023,"issuer":{"id":4480,"kind":"organization","name":"Stagwell Inc","symbol":"STGW"},"owners":[{"id":142052,"kind":"person","name":"Ross David Corwin","position":1,"cik":"0001699282","reported_name":"Ross David Corwin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Class A Subordinate Voting Shares","published_at":"2021-03-03T00:29:11.000Z","date":"2021-02-26","kind":"disposition_to_issuer","acquired":false,"shares":9852,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"200,000 shares of Restricted Stock (Class A Shares) of the Issuer were awarded to the Reporting Person on November 4, 2019, subject to achievement of financial performance targets and continued employment. 9,852 of these shares were forfeited on February 26, 2021 as a result of partial achievement of the financial performance targets. The remaining shares will vest on December 31, 2022, subject to continued employment."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares of unvested Restricted Stock (Class A Shares) of the Issuer."}],"balance_after":414838,"source":{"system":"sec-edgar","filing":"0001104659-21-030938","document":"tm218483-4_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/876883/000110465921030938/tm218483-4_4seq1.xml","form_type":"4"}},{"id":3073671,"issuer":{"id":4480,"kind":"organization","name":"Stagwell Inc","symbol":"STGW"},"owners":[{"id":142052,"kind":"person","name":"Ross David Corwin","position":1,"cik":"0001699282","reported_name":"Ross David Corwin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Class A Subordinate Voting Shares","published_at":"2020-07-31T00:11:14.000Z","date":"2020-03-25","kind":"disposition_to_issuer","acquired":false,"shares":17500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This amendment is being filed to include a transaction inadvertently omitted from the Form 4 filed by the Reporting Person on April 6, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes shares of unvested Restricted Stock (Class A Subordinate Voting Shares) of the Issuer."}],"balance_after":424690,"source":{"system":"sec-edgar","filing":"0001104659-20-088532","document":"tm2026201d1_4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/876883/000110465920088532/tm2026201d1_4a.xml","form_type":"4/A","original_submission_date":"2020-04-06"}},{"id":3181966,"issuer":{"id":4480,"kind":"organization","name":"Stagwell Inc","symbol":"STGW"},"owners":[{"id":142052,"kind":"person","name":"Ross David Corwin","position":1,"cik":"0001699282","reported_name":"Ross David Corwin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Class A Subordinate Voting Shares","published_at":"2020-04-06T20:19:55.000Z","date":"2020-03-25","kind":"tax_withholding","acquired":false,"shares":62048,"price":2.46,"value":152638.08,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes shares of unvested Restricted Stock (Class A Subordinate Voting Shares) of the Issuer."}],"balance_after":442190,"source":{"system":"sec-edgar","filing":"0001104659-20-043700","document":"tm2015117d1_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/876883/000110465920043700/tm2015117d1_4.xml","form_type":"4"}},{"id":3195611,"issuer":{"id":4480,"kind":"organization","name":"Stagwell Inc","symbol":"STGW"},"owners":[{"id":142052,"kind":"person","name":"Ross David Corwin","position":1,"cik":"0001699282","reported_name":"Ross David Corwin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Class A Subordinate Voting Shares","published_at":"2020-03-25T19:28:47.000Z","date":"2020-03-23","kind":"purchase","acquired":true,"shares":35000,"price":1.0997,"value":38489.5,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The purchase price reported in Column 4 is a weighted average price. 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The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes unvested shares of Restricted Stock (Class A Subordinate Voting Shares) of the Issuer."}],"balance_after":504238,"source":{"system":"sec-edgar","filing":"0001104659-20-038253","document":"tm2013791d2_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/876883/000110465920038253/tm2013791d2_4.xml","form_type":"4"}},{"id":3379197,"issuer":{"id":4480,"kind":"organization","name":"Stagwell Inc","symbol":"STGW"},"owners":[{"id":142052,"kind":"person","name":"Ross David Corwin","position":1,"cik":"0001699282","reported_name":"Ross David Corwin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Class A Shares","published_at":"2019-11-06T23:18:18.000Z","date":"2019-11-04","kind":"grant","acquired":true,"shares":200000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"200,000 shares of Restricted Stock (Class A Shares) of the Issuer were awarded on November 4, 2019. 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