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The RSUs vest from 2022 to 2023."}],"balance_after":22024,"source":{"system":"sec-edgar","filing":"0001127602-21-000737","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000112760221000737/form4.xml","form_type":"4"}},{"id":3225300,"issuer":{"id":3556,"kind":"organization","name":"AFFILIATED MANAGERS GROUP, INC.","symbol":"AMG"},"owners":[{"id":62125,"kind":"person","name":"Wojcik Thomas M","position":1,"cik":"0001776685","reported_name":"Wojcik Thomas M","relationship":{"officer":true,"officer_title":"Chief Financial Officer"}}],"security":"Stock Units","published_at":"2020-03-05T22:40:11.000Z","date":"2020-03-03","kind":"grant","acquired":true,"shares":10568,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The award, issued under the Company's 2013 Incentive Stock Award Plan, vests in four equal installments on each of January 1, 2021, 2022, 2023 and 2024."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The award, issued under the Company's 2013 Incentive Stock Award Plan, vests in four equal installments on each of January 1, 2021, 2022, 2023 and 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The award, issued under the Company's 2013 Incentive Stock Award Plan, vests in four equal installments on each of January 1, 2021, 2022, 2023 and 2024."}],"balance_after":10568,"derivative":{"underlying":"Common Stock","underlying_shares":10568},"source":{"system":"sec-edgar","filing":"0001127602-20-009656","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000112760220009656/form4.xml","form_type":"4"}},{"id":3234448,"issuer":{"id":3556,"kind":"organization","name":"AFFILIATED MANAGERS GROUP, INC.","symbol":"AMG"},"owners":[{"id":62125,"kind":"person","name":"Wojcik Thomas M","position":1,"cik":"0001776685","reported_name":"Wojcik Thomas M","relationship":{"officer":true,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-03-03T13:29:27.000Z","date":"2020-03-02","kind":"purchase","acquired":true,"shares":1350,"price":75,"value":101250.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Reflects the price paid for shares purchased on the open market."}],"balance_after":30497,"source":{"system":"sec-edgar","filing":"0001127602-20-008730","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000112760220008730/form4.xml","form_type":"4"}},{"id":3324324,"issuer":{"id":3556,"kind":"organization","name":"AFFILIATED MANAGERS GROUP, INC.","symbol":"AMG"},"owners":[{"id":62125,"kind":"person","name":"Wojcik Thomas M","position":1,"cik":"0001776685","reported_name":"Wojcik Thomas M","relationship":{"officer":true,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-01-03T23:33:26.000Z","date":"2020-01-01","kind":"tax_withholding","acquired":false,"shares":5914,"price":84.74,"value":501152.36,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Reflects the automatic surrender of shares of common stock to the Company to satisfy tax withholding obligations related to the vesting of a previously reported award."}],"balance_after":29147,"source":{"system":"sec-edgar","filing":"0001127602-20-000904","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1004434/000112760220000904/form4.xml","form_type":"4"}}]}