US StockDetailed Quotes

Provided by Tiger Trade Technology Pte. Ltd.

Affiliated Managers Group Inc

21.50

-0.0500-0.23%

Post-market: 21.500.00000.00%16:04 EST

Volume:24.98K

Turnover:536.54K

Market Cap:1.22B

PE:0.99

High:21.59

Open:21.56

Low:21.41

Close:21.55

52wk High:23.21

52wk Low:19.92

Shares:56.60M

Float Shares:56.60M

Volume Ratio:0.91

T/O Rate:0.04%

Dividend:1.47

Dividend Rate:6.83%

EPS(TTM):21.72

EPS(LYR):0.3109

ROE:6.50%

ROA:5.49%

PB:0.41

PE(LYR):69.16

Loading ...

Overview Company News Filings

Quarterly Report

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Annual Report

10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Beneficial Ownership Change

SC 13G - Statement of acquisition of beneficial ownership by individuals

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Major Issues Report

8-K - Current report

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers | Global Stocks, Options & Futures Trading App","description":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","keywords":"tiger brokers,tiger trade,tiger brokers singapore,broker online,stock trading in singapore,share trading singapore,brokerage firm singapore,trading app,stock broker singapore,stock trading platforms,trading account","social":{"ogDescription":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.be62fbe1.png","ogUrl":"https://www.itiger.com/stock/MGR/filings"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"MGR","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"MGR\",,,,,undefined,":{"symbol":"MGR","market":"US","secType":"STK","nameCN":"Affiliated Managers Group Inc","latestPrice":21.5,"timestamp":1771534800000,"preClose":21.55,"halted":0,"volume":24980,"hourTrading":{"tag":"盘后","latestPrice":21.5,"preClose":21.5,"latestTime":"16:04 EST","volume":4,"amount":86,"timestamp":1771535073142,"change":0,"changeRate":0,"amplitude":0},"delay":0,"changeRate":-0.002320185614849221,"floatShares":56602500,"shares":56602500,"eps":21.72,"marketStatus":"Closed","change":-0.05,"latestTime":"02-19 16:00:00 EST","open":21.56,"high":21.5899,"low":21.41,"amount":536544.245765,"amplitude":0.008348,"askPrice":0,"askSize":0,"bidPrice":0,"bidSize":0,"shortable":3,"etf":0,"ttmEps":21.72,"tradingStatus":0,"nextMarketStatus":{"tag":"Pre-Mkt","tradingStatus":1,"beginTime":1771578000000},"marketStatusCode":5,"adr":0,"adrRate":0,"exchange":"NYSE","adjPreClose":21.55,"dividendRate":0.068314,"postHourTrading":{"tag":"盘后","latestPrice":21.5,"preClose":21.5,"latestTime":"16:04 EST","volume":4,"amount":86,"timestamp":1771535073142,"change":0,"changeRate":0,"amplitude":0},"volumeRatio":0.914094},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"MGR\",,,,,undefined,":{"symbol":"MGR","floatShares":56602500,"roa":"5.49%","roe":"6.50%","lyrEps":0.310891,"volumeRatio":0.914094,"shares":56602500,"dividePrice":1.46876,"high":21.5899,"amplitude":0.008348,"preClose":21.55,"low":21.41,"week52Low":19.9195,"pbRate":"0.41","week52High":23.21,"institutionHeld":0,"latestPrice":21.5,"eps":21.72,"divideRate":0.068314,"volume":24980,"delay":0,"ttmEps":21.72,"open":21.56,"prevYearClose":21.01,"prevWeekClose":21.41,"prevMonthClose":21.5,"prevQuarterClose":21.01,"fiveDayClose":21.34,"twentyDayClose":21.5,"sixtyDayClose":21.17},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/MGR\",params:#limit:5,,,undefined,":[{"date":"2026-03-27","symbol":"MGR","amount":0.36719,"announcedDate":null,"type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-03-27","defaultRemindTime":1774618200000,"name":"Affiliated Managers Group Inc Pf","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-03-30","payableDate":"2026-03-27","currency":"USD","dateTimestamp":1774584000000,"payDate":"2026-03-30"},{"date":"2026-02-12","symbol":"MGR","type":"earning","reportTimeType":"pre","market":"US","fiscalQuarterEnding":null,"expectedEps":null,"defaultRemindTime":1770886800000,"name":null,"time":"Pre-Market","dateTimestamp":1770872400000,"actualEps":null},{"date":"2025-12-29","symbol":"MGR","amount":0.3671875,"announcedDate":null,"type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2025-12-29","defaultRemindTime":1767018600000,"name":"Affiliated Managers Group Inc Pf","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2025-12-30","payableDate":"2025-12-29","currency":"USD","dateTimestamp":1766984400000,"payDate":"2025-12-30"},{"date":"2025-11-03","symbol":"MGR","type":"earning","reportTimeType":"pre","market":"US","fiscalQuarterEnding":null,"expectedEps":null,"defaultRemindTime":1762160400000,"name":null,"time":"Pre-Market","dateTimestamp":1762146000000,"actualEps":null},{"date":"2025-09-29","symbol":"MGR","amount":0.3671875,"announcedDate":null,"type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2025-09-29","defaultRemindTime":1759152600000,"name":"Affiliated Managers Group Inc Pf","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2025-09-30","payableDate":"2025-09-29","currency":"USD","dateTimestamp":1759118400000,"payDate":"2025-09-30"}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"MGR\",market:\"US\",,,undefined,":[{"executeDate":"2017-01-30","recordDate":"2017-02-01","paymentDate":"2017-02-15","value":0.3984375,"currency":"USD"},{"executeDate":"2017-04-27","recordDate":"2017-05-01","paymentDate":"2017-05-15","value":0.3984375,"currency":"USD"},{"executeDate":"2017-07-28","recordDate":"2017-08-01","paymentDate":"2017-08-15","value":0.3984375,"currency":"USD"},{"executeDate":"2019-06-27","recordDate":"2019-06-28","paymentDate":"2019-06-30","value":0.3794271,"currency":"USD"},{"executeDate":"2019-09-26","recordDate":"2019-09-27","paymentDate":"2019-09-30","value":0.3671875,"currency":"USD"}],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"MGR\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0.5,"buy":0.5,"hold":0,"sell":0,"strongSell":0,"meanLabel":"STRONG BUY","meanPercent":0.5,"analysts":6,"updateTime":1756789200000},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"MGR\",pageSize:20,pageCount:1,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"16995138","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443423000025-MGR","pdf_url":"","pub_time":1691380800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"MGR","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000025/0001004434-23-000025-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000025/amg-20230630.htm","primary":true,"translateUrl":"","linkName":"amg-20230630.htm","type":"10-Q","id":"NTFILEFnJk6ZHAR5JoMB3t","market":"us","size":1934773},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000025/amg_06302023xexhibit311.htm","primary":false,"translateUrl":"","linkName":"amg_06302023xexhibit311.htm","type":"EX-31.1","id":"NTFILE9PcE6PLNzcpfqzmk","market":"us","size":11746},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000025/amg_06302023xexhibit312.htm","primary":false,"translateUrl":"","linkName":"amg_06302023xexhibit312.htm","type":"EX-31.2","id":"NTFILE9YkGac8TNRcFgsmi","market":"us","size":11690},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000025/amg_06302023xexhibit321.htm","primary":false,"translateUrl":"","linkName":"amg_06302023xexhibit321.htm","type":"EX-32.1","id":"NTFILE77xramggBW5Uitho","market":"us","size":6233},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000025/amg_06302023xexhibit322.htm","primary":false,"translateUrl":"","linkName":"amg_06302023xexhibit322.htm","type":"EX-32.2","id":"NTFILECyauPt5QvaAgHKX6","market":"us","size":6364},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000025/amg-20230630_g1.jpg","primary":false,"translateUrl":"","linkName":"amg-20230630_g1.jpg","type":"GRAPHIC","id":"NTFILE4thKoUsyvNFvPHsE","market":"us","size":114950},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000025/amg-20230630_g2.jpg","primary":false,"translateUrl":"","linkName":"amg-20230630_g2.jpg","type":"GRAPHIC","id":"NTFILEBh8A7XkmxqUVUnrt","market":"us","size":34983}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2023-08-07 12:00","pubTimestamp":1691380800,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"16995146","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443423000021-MGR","pdf_url":"","pub_time":1690344000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"MGR","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000021/0001004434-23-000021-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000021/amgq22023ex991.htm","primary":true,"translateUrl":"","linkName":"amgq22023ex991.htm","type":"EX-99.1","id":"NTFILECHTux6CE6XZixAQw","market":"us","size":352261},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000021/amg-20230726.htm","primary":false,"translateUrl":"","linkName":"amg-20230726.htm","type":"8-K","id":"NTFILECGgkoVtDskdUvkkv","market":"us","size":41636},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000021/amglogoa78a.jpg","primary":false,"translateUrl":"","linkName":"amglogoa78a.jpg","type":"GRAPHIC","id":"NTFILE6qmeinAfK4V4oEbo","market":"us","size":114950},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000021/image5.jpg","primary":false,"translateUrl":"","linkName":"image5.jpg","type":"GRAPHIC","id":"NTFILE6JRo5YtzpCfZ6TFc","market":"us","size":7976},{"description":"COURTESY PDF","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000021/courtesy.pdf","primary":false,"translateUrl":"","linkName":"courtesy.pdf","type":"EX-99.1","id":"NTFILE6me7JWjUUidTkxmx","market":"us","size":92235}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2023-07-26 12:00","pubTimestamp":1690344000,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"16522143","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312523156631-MGR","pdf_url":"","pub_time":1685376000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"MGR","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312523156631/0001193125-23-156631-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312523156631/d473912d8k.htm","primary":true,"translateUrl":"","linkName":"d473912d8k.htm","type":"8-K","id":"NTFILE139HLFw5VgxuzSaK","market":"us","size":49307}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2023-05-30 00:00","pubTimestamp":1685376000,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"16414917","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443423000017-MGR","pdf_url":"","pub_time":1683475200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"MGR","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000017/0001004434-23-000017-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000017/amg-20230331.htm","primary":true,"translateUrl":"","linkName":"amg-20230331.htm","type":"10-Q","id":"NTFILE9c7NrnGRsx2JpS1C","market":"us","size":1767331},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000017/amg_03312023xexhibit311.htm","primary":false,"translateUrl":"","linkName":"amg_03312023xexhibit311.htm","type":"EX-31.1","id":"NTFILEDa7fkzw5xqagdav2","market":"us","size":11845},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000017/amg_03312023xexhibit312.htm","primary":false,"translateUrl":"","linkName":"amg_03312023xexhibit312.htm","type":"EX-31.2","id":"NTFILE8k95hjAXNP8DtJ7q","market":"us","size":11789},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000017/amg_03312023xexhibit321.htm","primary":false,"translateUrl":"","linkName":"amg_03312023xexhibit321.htm","type":"EX-32.1","id":"NTFILEF3gYCAScCRdV3Pje","market":"us","size":6333},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000017/amg_03312023xexhibit322.htm","primary":false,"translateUrl":"","linkName":"amg_03312023xexhibit322.htm","type":"EX-32.2","id":"NTFILECcntkFKBSnDG9yF8","market":"us","size":6464},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000017/amg-20230331_g1.jpg","primary":false,"translateUrl":"","linkName":"amg-20230331_g1.jpg","type":"GRAPHIC","id":"NTFILE9Frzip1wzCNyzJH5","market":"us","size":114950},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000017/amg-20230331_g2.jpg","primary":false,"translateUrl":"","linkName":"amg-20230331_g2.jpg","type":"GRAPHIC","id":"NTFILECGb5araANHFAH6pE","market":"us","size":43512}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2023-05-08 00:00","pubTimestamp":1683475200,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"16387684","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443423000015-MGR","pdf_url":"","pub_time":1682870400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000015/0001004434-23-000015-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000015/amgq12023ex991.htm","primary":true,"translateUrl":"","linkName":"amgq12023ex991.htm","type":"EX-99.1","id":"NTFILEBgg2QvCxhic7FFkz","market":"us","size":249193},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000015/amg-20230501.htm","primary":false,"translateUrl":"","linkName":"amg-20230501.htm","type":"8-K","id":"NTFILEDda12DsVRevh7i4t","market":"us","size":52628},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000015/amglogoa78a.jpg","primary":false,"translateUrl":"","linkName":"amglogoa78a.jpg","type":"GRAPHIC","id":"NTFILEisPrrVWjzroHP74B","market":"us","size":114950},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000015/image5.jpg","primary":false,"translateUrl":"","linkName":"image5.jpg","type":"GRAPHIC","id":"NTFILE3zdnGnEfHEqgRiQP","market":"us","size":7976},{"description":"COURTESY PDF","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000015/courtesy.pdf","primary":false,"translateUrl":"","linkName":"courtesy.pdf","type":"EX-99.1","id":"NTFILEEZu6ztHyJKP6Ztiy","market":"us","size":209919}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2023-05-01 00:00","pubTimestamp":1682870400,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15969604","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443423000010-MGR","pdf_url":"","pub_time":1676563200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"MGR","title":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/0001004434-23-000010-index.htm","us_notice_code":"Form 10-K","us_title_en":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg-20221231.htm","primary":true,"translateUrl":"","linkName":"amg-20221231.htm","type":"10-K","id":"NTFILEBe2vuPVmvrQu5kUq","market":"us","size":3161445},{"description":"EX-21.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg_exhibit211x12312022.htm","primary":false,"translateUrl":"","linkName":"amg_exhibit211x12312022.htm","type":"EX-21.1","id":"NTFILEF2ote7pGf4A3mMND","market":"us","size":33575},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg_exhibit231x12312022.htm","primary":false,"translateUrl":"","linkName":"amg_exhibit231x12312022.htm","type":"EX-23.1","id":"NTFILE8rozNXpJGMUgqSoi","market":"us","size":4211},{"description":"EX-31.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg_exhibit311x12312022.htm","primary":false,"translateUrl":"","linkName":"amg_exhibit311x12312022.htm","type":"EX-31.1","id":"NTFILE4JP9eZcEiFSEwfHk","market":"us","size":11833},{"description":"EX-31.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg_exhibit312x12312022.htm","primary":false,"translateUrl":"","linkName":"amg_exhibit312x12312022.htm","type":"EX-31.2","id":"NTFILEHJYzbci3YBsLw4qG","market":"us","size":11869},{"description":"EX-32.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg_exhibit321x12312022.htm","primary":false,"translateUrl":"","linkName":"amg_exhibit321x12312022.htm","type":"EX-32.1","id":"NTFILE64ew3j8mxRppq2H5","market":"us","size":6695},{"description":"EX-32.2","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg_exhibit322x12312022.htm","primary":false,"translateUrl":"","linkName":"amg_exhibit322x12312022.htm","type":"EX-32.2","id":"NTFILECKsMA3oHAzPPZJk7","market":"us","size":6676},{"description":"","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg-20221231_g1.jpg","primary":false,"translateUrl":"","linkName":"amg-20221231_g1.jpg","type":"GRAPHIC","id":"NTFILEAj7rxy6cB7BPGJaN","market":"us","size":114950},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg-20221231_g2.jpg","primary":false,"translateUrl":"","linkName":"amg-20221231_g2.jpg","type":"GRAPHIC","id":"NTFILE35Tf9q6ECvuvJDkG","market":"us","size":35856},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg-20221231_g3.jpg","primary":false,"translateUrl":"","linkName":"amg-20221231_g3.jpg","type":"GRAPHIC","id":"NTFILE6dPSbRnChrUvFrTN","market":"us","size":45979},{"description":"","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg-20221231_g4.jpg","primary":false,"translateUrl":"","linkName":"amg-20221231_g4.jpg","type":"GRAPHIC","id":"NTFILEFyLu8XpYzAdfdk4u","market":"us","size":27420},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000010/amg-20221231_g5.jpg","primary":false,"translateUrl":"","linkName":"amg-20221231_g5.jpg","type":"GRAPHIC","id":"NTFILE2DoFwPdFeVWBAC57","market":"us","size":21034}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Annual Report","pubTime":"2023-02-17 00:00","pubTimestamp":1676563200,"title_zh":"10-K  - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15969605","market":"us","labels":[],"media":"sec.gov","original_id":"AN90572923000047-MGR","pdf_url":"","pub_time":1676304000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","symbol":"MGR","title":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000090572923000047/0000905729-23-000047-index.htm","us_notice_code":"Form SC 13G","us_title_en":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"CCP/AFFILIATED MANAGERS GROUP SC 13G","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000090572923000047/affiliatedsc13g_021423.htm","primary":true,"translateUrl":"","linkName":"affiliatedsc13g_021423.htm","type":"SC 13G","id":"NTFILEH4k3ccrzQBp8D2DC","market":"us","size":157447},{"description":"JOINT FILING AGREEMENT","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000090572923000047/affiliatedex991_021423.htm","primary":false,"translateUrl":"","linkName":"affiliatedex991_021423.htm","type":"EX-99.1","id":"NTFILE4T79izjk7MZ6ZVde","market":"us","size":19242}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2023-02-14 00:00","pubTimestamp":1676304000,"title_zh":"SC 13G  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15930128","market":"us","labels":[],"media":"sec.gov","original_id":"AN110465923015215-MGR","pdf_url":"","pub_time":1675872000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"MGR","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000110465923015215/0001104659-23-015215-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"SCHEDULE 13G/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/102909/000110465923015215/tv0177-affiliatedmanagersgro.htm","primary":true,"translateUrl":"","linkName":"tv0177-affiliatedmanagersgro.htm","type":"SC 13G/A","id":"NTFILEDT6LYBXUjWvm5D8r","market":"us","size":11497}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2023-02-09 00:00","pubTimestamp":1675872000,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15919406","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443423000004-MGR","pdf_url":"","pub_time":1675612800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000004/0001004434-23-000004-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000004/amgq42022ex991.htm","primary":true,"translateUrl":"","linkName":"amgq42022ex991.htm","type":"EX-99.1","id":"NTFILEB4YfUUTaxqYXtYoQ","market":"us","size":361238},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000004/amg-20230206.htm","primary":false,"translateUrl":"","linkName":"amg-20230206.htm","type":"8-K","id":"NTFILECAKZhEERybTHX8XK","market":"us","size":52660},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000004/amglogoa78.jpg","primary":false,"translateUrl":"","linkName":"amglogoa78.jpg","type":"GRAPHIC","id":"NTFILEC6unSFaBh9As72Jg","market":"us","size":114950},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000004/image5a.jpg","primary":false,"translateUrl":"","linkName":"image5a.jpg","type":"GRAPHIC","id":"NTFILE39cSRqHRweSZbw8i","market":"us","size":7976},{"description":"COURTESY PDF","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443423000004/courtesy.pdf","primary":false,"translateUrl":"","linkName":"courtesy.pdf","type":"EX-99.1","id":"NTFILEGahkTtf4emkCv5kt","market":"us","size":445227}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2023-02-06 00:00","pubTimestamp":1675612800,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15844694","market":"us","labels":[],"media":"sec.gov","original_id":"AN148166923000002-MGR","pdf_url":"","pub_time":1673280000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"MGR","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000148166923000002/0001481669-23-000002-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EPIG AMG 13GA6","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000148166923000002/AMG13GA6.htm","primary":true,"translateUrl":"","linkName":"AMG13GA6.htm","type":"SC 13G/A","id":"NTFILE4JSzgSwreLAXxkq3","market":"us","size":20621}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2023-01-10 00:00","pubTimestamp":1673280000,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15812216","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312522315487-MGR","pdf_url":"","pub_time":1672329600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522315487/0001193125-22-315487-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522315487/d433603d8k.htm","primary":true,"translateUrl":"","linkName":"d433603d8k.htm","type":"8-K","id":"NTFILEHTwjhTU9Qezq2tvh","market":"us","size":27566}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-12-30 00:00","pubTimestamp":1672329600,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15691386","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312522289485-MGR","pdf_url":"","pub_time":1668960000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522289485/0001193125-22-289485-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-10.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522289485/d403304dex101.htm","primary":true,"translateUrl":"","linkName":"d403304dex101.htm","type":"EX-10.1","id":"NTFILEGfFA8i2TA2uhVHjR","market":"us","size":879282},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522289485/d403304d8k.htm","primary":false,"translateUrl":"","linkName":"d403304d8k.htm","type":"8-K","id":"NTFILECj5fQQJ5qAPbUnNd","market":"us","size":34547},{"description":"EX-10.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522289485/d403304dex102.htm","primary":false,"translateUrl":"","linkName":"d403304dex102.htm","type":"EX-10.2","id":"NTFILEH4Kuy6TNzx1L7iXh","market":"us","size":661219}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-11-21 00:00","pubTimestamp":1668960000,"title_zh":"8-K  - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15644219","market":"us","labels":[],"media":"sec.gov","original_id":"AN110465922116925-MGR","pdf_url":"","pub_time":1668009600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"MGR","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000110465922116925/0001104659-22-116925-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"SCHEDULE 13G/A","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/102909/000110465922116925/tv0014-affiliatedmanagersgro.htm","primary":true,"translateUrl":"","linkName":"tv0014-affiliatedmanagersgro.htm","type":"SC 13G/A","id":"NTFILE3aNLnahRjiZv3ieb","market":"us","size":11497}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2022-11-10 00:00","pubTimestamp":1668009600,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15644221","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443422000051-MGR","pdf_url":"","pub_time":1667750400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000051/0001004434-22-000051-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000051/amgq32022ex991.htm","primary":true,"translateUrl":"","linkName":"amgq32022ex991.htm","type":"EX-99.1","id":"NTFILE44suRrFoeYA7kmq3","market":"us","size":328293},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000051/amg-20221107.htm","primary":false,"translateUrl":"","linkName":"amg-20221107.htm","type":"8-K","id":"NTFILEHgEdZdvDJ8xYDGZv","market":"us","size":53258},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000051/amglogoa78a.jpg","primary":false,"translateUrl":"","linkName":"amglogoa78a.jpg","type":"GRAPHIC","id":"NTFILE7itWqoAPD2HRE9PY","market":"us","size":114950},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000051/image5.jpg","primary":false,"translateUrl":"","linkName":"image5.jpg","type":"GRAPHIC","id":"NTFILE2exkKzng6KqjfbsY","market":"us","size":7976},{"description":"COURTESY PDF","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000051/courtesy.pdf","primary":false,"translateUrl":"","linkName":"courtesy.pdf","type":"EX-99.1","id":"NTFILEGdZXxQn3KgnJhnkA","market":"us","size":90226}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-11-07 00:00","pubTimestamp":1667750400,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15644220","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443422000054-MGR","pdf_url":"","pub_time":1667750400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"MGR","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000054/0001004434-22-000054-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000054/amg-20220930.htm","primary":true,"translateUrl":"","linkName":"amg-20220930.htm","type":"10-Q","id":"NTFILE6jmix6CvtZSaH9yE","market":"us","size":2353733},{"description":"EX-3.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000054/amg_093022xexhibit31.htm","primary":false,"translateUrl":"","linkName":"amg_093022xexhibit31.htm","type":"EX-3.1","id":"NTFILEFaDS9SFMYbKRX5t1","market":"us","size":153622},{"description":"EX-31.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000054/amg_09302022xexhibit311.htm","primary":false,"translateUrl":"","linkName":"amg_09302022xexhibit311.htm","type":"EX-31.1","id":"NTFILE8FabjbXL8ZAgYCAQ","market":"us","size":11850},{"description":"EX-31.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000054/amg_09302022xexhibit312.htm","primary":false,"translateUrl":"","linkName":"amg_09302022xexhibit312.htm","type":"EX-31.2","id":"NTFILE56CUWx1bvhBdAJKF","market":"us","size":11794},{"description":"EX-32.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000054/amg_09302022xexhibit321.htm","primary":false,"translateUrl":"","linkName":"amg_09302022xexhibit321.htm","type":"EX-32.1","id":"NTFILE3DeX4wE1CuKfLW9B","market":"us","size":6342},{"description":"EX-32.2","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000054/amg_09302022xexhibit322.htm","primary":false,"translateUrl":"","linkName":"amg_09302022xexhibit322.htm","type":"EX-32.2","id":"NTFILEFRxBMguLDkJFKN8A","market":"us","size":6473},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000054/amg-20220930_g1.jpg","primary":false,"translateUrl":"","linkName":"amg-20220930_g1.jpg","type":"GRAPHIC","id":"NTFILE3FooQLkjy83a67Xm","market":"us","size":114950},{"description":"","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000054/amg-20220930_g2.jpg","primary":false,"translateUrl":"","linkName":"amg-20220930_g2.jpg","type":"GRAPHIC","id":"NTFILECyYkamaZzV1gesbo","market":"us","size":67932}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2022-11-07 00:00","pubTimestamp":1667750400,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15550368","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443422000044-MGR","pdf_url":"","pub_time":1666022400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000044/0001004434-22-000044-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000044/amg-20221018.htm","primary":true,"translateUrl":"","linkName":"amg-20221018.htm","type":"8-K","id":"NTFILE4dFfwRwsENtyhUeF","market":"us","size":47379}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-10-18 00:00","pubTimestamp":1666022400,"title_zh":"8-K  - Current report","summary_en":"Item 8.01: Other Events","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15269110","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443422000039-MGR","pdf_url":"","pub_time":1659542400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"MGR","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000039/0001004434-22-000039-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000039/amg-20220630.htm","primary":true,"translateUrl":"","linkName":"amg-20220630.htm","type":"10-Q","id":"NTFILEHPy8nwj5VXdbWC7f","market":"us","size":2334469},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000039/amg_06302022xexhibit311.htm","primary":false,"translateUrl":"","linkName":"amg_06302022xexhibit311.htm","type":"EX-31.1","id":"NTFILEBsAoSNuN7JBMyfKx","market":"us","size":11848},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000039/amg_06302022xexhibit312.htm","primary":false,"translateUrl":"","linkName":"amg_06302022xexhibit312.htm","type":"EX-31.2","id":"NTFILE9dXA3qwsco1vMMBm","market":"us","size":11792},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000039/amg_06302022xexhibit321.htm","primary":false,"translateUrl":"","linkName":"amg_06302022xexhibit321.htm","type":"EX-32.1","id":"NTFILE2eBfG4PBQc4UzHo3","market":"us","size":6335},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000039/amg_06302022xexhibit322.htm","primary":false,"translateUrl":"","linkName":"amg_06302022xexhibit322.htm","type":"EX-32.2","id":"NTFILEBum4KDqypdqyzqLY","market":"us","size":6466},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000039/amg-20220630_g1.jpg","primary":false,"translateUrl":"","linkName":"amg-20220630_g1.jpg","type":"GRAPHIC","id":"NTFILE4g2RdsdQeEzasFCb","market":"us","size":114950},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000039/amg-20220630_g2.jpg","primary":false,"translateUrl":"","linkName":"amg-20220630_g2.jpg","type":"GRAPHIC","id":"NTFILE9bytj3kmvNohgZGG","market":"us","size":66245}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2022-08-04 00:00","pubTimestamp":1659542400,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15269118","market":"us","labels":[],"media":"sec.gov","original_id":"AN100443422000035-MGR","pdf_url":"","pub_time":1659283200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000035/0001004434-22-000035-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000035/amgq22022ex991.htm","primary":true,"translateUrl":"","linkName":"amgq22022ex991.htm","type":"EX-99.1","id":"NTFILEAvXLpD9EN79LXA7r","market":"us","size":326824},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000035/amg-20220801.htm","primary":false,"translateUrl":"","linkName":"amg-20220801.htm","type":"8-K","id":"NTFILE6qzAqCvpoi7qZ1iV","market":"us","size":52480},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000035/amglogoa78a.jpg","primary":false,"translateUrl":"","linkName":"amglogoa78a.jpg","type":"GRAPHIC","id":"NTFILE9dzD4RG3NANvdRNy","market":"us","size":114950},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000035/image5.jpg","primary":false,"translateUrl":"","linkName":"image5.jpg","type":"GRAPHIC","id":"NTFILE2v8DLLPwm5GMFyoS","market":"us","size":7976},{"description":"COURTESY PDF","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000100443422000035/courtesy.pdf","primary":false,"translateUrl":"","linkName":"courtesy.pdf","type":"EX-99.1","id":"NTFILE279Y6sjKZ8SvQnp2","market":"us","size":88652}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-08-01 00:00","pubTimestamp":1659283200,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14972376","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312522163993-MGR","pdf_url":"","pub_time":1653926400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522163993/0001193125-22-163993-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522163993/d326734d8k.htm","primary":true,"translateUrl":"","linkName":"d326734d8k.htm","type":"8-K","id":"NTFILE7F4qJUtpTedw3RxK","market":"us","size":44668}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-05-31 00:00","pubTimestamp":1653926400,"title_zh":"8-K  - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14938909","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312522162415-MGR","pdf_url":"","pub_time":1653580800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"MGR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522162415/0001193125-22-162415-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-1.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522162415/d302366dex11.htm","primary":true,"translateUrl":"","linkName":"d302366dex11.htm","type":"EX-1.1","id":"NTFILECtMQhxgkTLoUpk2g","market":"us","size":489174},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522162415/d302366d8k.htm","primary":false,"translateUrl":"","linkName":"d302366d8k.htm","type":"8-K","id":"NTFILE5JrXvrFFqaNRX4ih","market":"us","size":33932},{"description":"EX-5.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522162415/d302366dex51.htm","primary":false,"translateUrl":"","linkName":"d302366dex51.htm","type":"EX-5.1","id":"NTFILE6cBcCbLTHHEamoKA","market":"us","size":18807},{"description":"EX-10.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1004434/000119312522162415/d302366dex101.htm","primary":false,"translateUrl":"","linkName":"d302366dex101.htm","type":"EX-10.1","id":"NTFILE3uyLttyQbHfTusJt","market":"us","size":184713}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-05-27 00:00","pubTimestamp":1653580800,"title_zh":"8-K  - Current report","summary_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":5,"pageCount":1,"totalSize":100,"code":"91000000","status":"200"}]}}