US StockDetailed Quotes

Provided by Tiger Trade Technology Pte. Ltd.

Biogen

191.81

-2.3199-1.20%

Volume:510.16K

Turnover:98.03M

Market Cap:28.14B

PE:21.82

High:195.00

Open:193.51

Low:191.05

Close:194.13

52wk High:202.41

52wk Low:110.04

Shares:146.70M

Float Shares:146.23M

Volume Ratio:0.52

T/O Rate:0.35%

Dividend:- -

Dividend Rate:- -

EPS(TTM):8.79

EPS(LYR):8.79

ROE:7.39%

ROA:6.14%

PB:1.54

PE(LYR):21.82

Loading ...

Overview Company News Filings

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Annual Report

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

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Major Issues Report

Form 8-K - Current report

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

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Quarterly Report

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

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Major Issues Report

Form 8-K - Current report

Major Issues Report

Form 8-K - Current report

Proposed Sale Of Securities

Form 144 - Report of proposed sale of securities

Major Issues Report

Form 8-K - Current report

[Supp]Public Prospectus

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Quarterly Report

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

Major Issues Report

Form 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/BIIB/filings"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"BIIB","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"BIIB\",,,,,undefined,":{"symbol":"BIIB","market":"US","secType":"STK","nameCN":"Biogen","latestPrice":191.8101,"timestamp":1771530346093,"preClose":194.13,"halted":0,"volume":510158,"delay":0,"changeRate":-0.011950239530211662,"floatShares":146226846,"shares":146702272,"eps":8.79,"marketStatus":"Trading","change":-2.3199,"latestTime":"02-19 14:45:50 EST","open":193.51,"high":194.995,"low":191.05,"amount":98031991.88948,"amplitude":0.020321,"askPrice":192.05,"askSize":10,"bidPrice":191.81,"bidSize":43,"shortable":3,"etf":0,"ttmEps":8.79,"tradingStatus":2,"nextMarketStatus":{"tag":"Post-Mkt","tradingStatus":3,"beginTime":1771534800000},"marketStatusCode":2,"adr":0,"adrRate":0,"listingDate":685080000000,"exchange":"NASDAQ","adjPreClose":194.13,"preHourTrading":{"tag":"盘前","latestPrice":193.94,"preClose":194.13,"latestTime":"08:24 EST","volume":49,"amount":9488.11941,"timestamp":1771507469071,"change":-0.19,"changeRate":-0.000979,"amplitude":0.009736},"postHourTrading":{"tag":"盘后","latestPrice":194.13,"preClose":194.13,"latestTime":"19:46 EST","volume":15225,"amount":2955564.17,"timestamp":1771461992124,"change":0,"changeRate":0,"amplitude":0},"volumeRatio":0.520974,"impliedVol":0.3406,"impliedVolPercentile":0.2908},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"BIIB\",,,,,undefined,":{"symbol":"BIIB","floatShares":146226846,"roa":"6.14%","roe":"7.39%","lyrEps":8.79,"volumeRatio":0.520974,"shares":146702272,"dividePrice":0,"high":194.995,"amplitude":0.020321,"preClose":194.13,"low":191.05,"week52Low":110.035,"pbRate":"1.54","psRate":"2.85","week52High":202.41,"institutionHeld":0.8451,"latestPrice":191.8101,"committee":0.622642,"eps":8.79,"divideRate":0,"volume":510158,"delay":0,"ttmEps":8.79,"open":193.51,"prevYearClose":175.99,"prevWeekClose":196.52,"prevMonthClose":179.89,"prevQuarterClose":175.99,"fiveDayClose":191.2,"twentyDayClose":172.62,"sixtyDayClose":168.18,"dividendPayoutRate":0,"dividendGrowthYears":0,"fiveYearAvgDividendRate":0},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/BIIB\",params:#limit:5,,,undefined,":[{"market":"US","date":"2026-02-06","symbol":"BIIB","fiscalQuarterEnding":"2025/12","expectedEps":1.6,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1770354000000,"reportTimeType":"pre","actualEps":3.44},{"market":"US","date":"2025-10-30","symbol":"BIIB","fiscalQuarterEnding":"2025/09","expectedEps":3.89,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1761796800000,"reportTimeType":"pre","actualEps":4.81},{"market":"US","date":"2025-07-31","symbol":"BIIB","fiscalQuarterEnding":"2025/06","expectedEps":3.93,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1753934400000,"reportTimeType":"pre","actualEps":5.47},{"market":"US","date":"2025-05-01","symbol":"BIIB","fiscalQuarterEnding":"2025/03","expectedEps":3.26,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1746072000000,"reportTimeType":"pre","actualEps":3.02},{"market":"US","date":"2025-02-12","symbol":"BIIB","fiscalQuarterEnding":"2024/12","expectedEps":3.42,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1739336400000,"reportTimeType":"pre","actualEps":3.44}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"BIIB\",market:\"US\",,,undefined,":[],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"BIIB\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0.1944,"buy":0.2222,"hold":0.5556,"sell":0.0278,"strongSell":0,"meanLabel":"BUY","meanPercent":0.2222,"analysts":36,"updateTime":1766206800000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/BIIB\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"BIIB","date":"2026-02-18","current":21.897611,"percent":0.734095,"low":9.889951,"twenty":13.187075,"median":15.155406,"eighty":23.767576,"high":29.553699,"avg":17.803192,"sd":5.333522,"marketCap":28708903247},"quantilePoints":[{"date":"2021-02-19","current":10.599073,"twenty":8.500791,"median":16.233805,"eighty":20.245858,"marketCap":42402650723},{"date":"2021-02-26","current":10.390785,"twenty":8.500791,"median":16.187357,"eighty":20.203066,"marketCap":41569374275},{"date":"2021-03-05","current":10.308155,"twenty":8.497203,"median":16.154964,"eighty":20.174961,"marketCap":41238805739},{"date":"2021-03-12","current":10.133757,"twenty":8.497203,"median":16.125084,"eighty":20.070907,"marketCap":40541108091},{"date":"2021-03-19","current":10.16955,"twenty":8.497203,"median":16.113083,"eighty":19.981443,"marketCap":40684303678},{"date":"2021-03-26","current":10.533578,"twenty":8.500791,"median":16.049312,"eighty":19.941245,"marketCap":42140633266},{"date":"2021-04-01","current":10.612781,"twenty":8.500791,"median":15.98416,"eighty":19.889259,"marketCap":42457491587},{"date":"2021-04-09","current":10.09204,"twenty":8.497203,"median":15.949172,"eighty":19.764693,"marketCap":40374215282},{"date":"2021-04-16","current":10.172575,"twenty":8.497203,"median":15.921399,"eighty":19.722098,"marketCap":40696402032},{"date":"2021-04-23","current":13.128862,"twenty":8.497203,"median":15.875061,"eighty":19.696106,"marketCap":39540193992},{"date":"2021-04-30","current":13.363815,"twenty":8.497203,"median":15.807955,"eighty":19.696106,"marketCap":40247801317},{"date":"2021-05-07","current":13.699247,"twenty":8.497203,"median":15.723881,"eighty":19.696106,"marketCap":41258023690},{"date":"2021-05-14","current":14.007686,"twenty":8.497203,"median":15.670061,"eighty":19.696106,"marketCap":42186946497},{"date":"2021-05-21","current":14.156656,"twenty":8.497203,"median":15.60416,"eighty":19.696106,"marketCap":42635599652},{"date":"2021-05-28","current":13.371313,"twenty":8.497203,"median":15.573174,"eighty":19.696106,"marketCap":40270384530},{"date":"2021-06-04","current":14.304126,"twenty":8.497203,"median":15.557418,"eighty":19.696106,"marketCap":43079736165},{"date":"2021-06-11","current":19.828016,"twenty":8.497203,"median":15.557418,"eighty":19.745578,"marketCap":59716036040},{"date":"2021-06-18","current":19.418098,"twenty":8.497203,"median":15.557418,"eighty":19.755193,"marketCap":58481487090},{"date":"2021-06-25","current":17.393005,"twenty":8.497203,"median":15.567751,"eighty":19.755193,"marketCap":52382514167},{"date":"2021-07-02","current":17.432497,"twenty":8.497203,"median":15.570047,"eighty":19.755193,"marketCap":52501452420},{"date":"2021-07-09","current":17.904403,"twenty":8.497203,"median":15.570047,"eighty":19.755193,"marketCap":53922689260},{"date":"2021-07-16","current":16.227739,"twenty":8.497203,"median":15.570047,"eighty":19.755193,"marketCap":48873082945},{"date":"2021-07-23","current":25.283083,"twenty":8.497203,"median":15.570047,"eighty":19.764693,"marketCap":48495482352},{"date":"2021-07-30","current":25.386422,"twenty":8.497203,"median":15.570047,"eighty":19.810328,"marketCap":48693696831},{"date":"2021-08-06","current":26.417481,"twenty":8.497203,"median":15.570047,"eighty":19.852416,"marketCap":50671370620},{"date":"2021-08-13","current":26.592303,"twenty":8.497203,"median":15.570047,"eighty":19.944153,"marketCap":51006695866},{"date":"2021-08-20","current":26.552677,"twenty":8.497203,"median":15.570047,"eighty":19.994038,"marketCap":50930688810},{"date":"2021-08-27","current":26.665339,"twenty":8.497203,"median":15.570047,"eighty":20.098571,"marketCap":51146787303},{"date":"2021-09-03","current":25.920211,"twenty":8.497203,"median":15.570047,"eighty":20.189206,"marketCap":49717556584},{"date":"2021-09-10","current":23.294779,"twenty":8.497203,"median":15.570047,"eighty":20.204127,"marketCap":44681716545},{"date":"2021-09-17","current":23.324305,"twenty":8.497203,"median":15.570047,"eighty":20.247225,"marketCap":44738349254},{"date":"2021-09-24","current":22.665422,"twenty":8.497203,"median":15.570047,"eighty":20.354794,"marketCap":43474545657},{"date":"2021-10-01","current":22.061705,"twenty":8.497203,"median":15.570047,"eighty":20.406509,"marketCap":42316555805},{"date":"2021-10-08","current":22.208555,"twenty":8.497203,"median":15.570047,"eighty":20.49184,"marketCap":42598229012},{"date":"2021-10-15","current":21.848034,"twenty":8.497203,"median":15.570047,"eighty":20.56935,"marketCap":41906713837},{"date":"2021-10-22","current":25.163145,"twenty":8.497203,"median":15.570047,"eighty":20.652077,"marketCap":38897190137},{"date":"2021-10-29","current":25.341796,"twenty":8.497203,"median":15.570047,"eighty":20.775909,"marketCap":39173348436},{"date":"2021-11-05","current":26.48212,"twenty":8.497203,"median":15.570047,"eighty":20.846596,"marketCap":40936060980},{"date":"2021-11-12","current":25.698147,"twenty":8.497203,"median":15.570047,"eighty":20.923635,"marketCap":39724196106},{"date":"2021-11-19","current":24.43999,"twenty":8.497203,"median":15.570047,"eighty":20.97455,"marketCap":37779336599},{"date":"2021-11-26","current":23.082054,"twenty":8.497203,"median":15.570047,"eighty":21.028174,"marketCap":35680239744},{"date":"2021-12-03","current":21.278442,"twenty":8.497203,"median":15.570047,"eighty":21.079902,"marketCap":32892216071},{"date":"2021-12-10","current":22.105177,"twenty":8.497203,"median":15.570047,"eighty":21.201871,"marketCap":34170182665},{"date":"2021-12-17","current":22.562257,"twenty":8.497203,"median":15.570047,"eighty":21.294992,"marketCap":34876736610},{"date":"2021-12-23","current":22.370302,"twenty":8.497203,"median":15.570047,"eighty":21.362909,"marketCap":34580013331},{"date":"2021-12-31","current":22.798874,"twenty":8.497203,"median":15.570047,"eighty":21.502724,"marketCap":35242499463},{"date":"2022-01-07","current":22.103276,"twenty":8.500791,"median":15.57263,"eighty":21.634937,"marketCap":34167244811},{"date":"2022-01-14","current":22.739957,"twenty":8.500791,"median":15.57263,"eighty":21.738204,"marketCap":35151425981},{"date":"2022-01-21","current":20.955351,"twenty":8.500791,"median":15.57263,"eighty":21.764755,"marketCap":32392780850},{"date":"2022-01-28","current":21.401027,"twenty":8.500791,"median":15.57263,"eighty":21.764755,"marketCap":33081707669},{"date":"2022-02-04","current":20.921964,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":32556667533},{"date":"2022-02-11","current":20.266529,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":31536745749},{"date":"2022-02-18","current":19.813202,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":30831324343},{"date":"2022-02-25","current":19.585595,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":30477144012},{"date":"2022-03-04","current":19.781092,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":30781356993},{"date":"2022-03-11","current":18.668553,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":29050135292},{"date":"2022-03-18","current":19.697982,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":30652029736},{"date":"2022-03-25","current":19.924645,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":31004740439},{"date":"2022-04-01","current":19.894423,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":30957712345},{"date":"2022-04-08","current":20.28164,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":31560259796},{"date":"2022-04-14","current":20.073865,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":31236941652},{"date":"2022-04-22","current":19.832091,"twenty":8.500791,"median":15.57263,"eighty":21.790769,"marketCap":30860716902},{"date":"2022-04-29","current":19.616341,"twenty":8.500791,"median":15.575787,"eighty":21.790769,"marketCap":30524988504},{"date":"2022-05-06","current":19.558925,"twenty":8.500791,"median":15.608505,"eighty":21.790769,"marketCap":28354574236},{"date":"2022-05-13","current":20.114548,"twenty":8.500791,"median":15.692187,"eighty":21.790769,"marketCap":29160060308},{"date":"2022-05-20","current":20.1691,"twenty":8.500791,"median":15.775496,"eighty":21.790769,"marketCap":29239144395},{"date":"2022-05-27","current":20.830796,"twenty":8.500791,"median":15.860843,"eighty":21.790769,"marketCap":30198405080},{"date":"2022-06-03","current":20.267092,"twenty":8.500791,"median":15.945572,"eighty":21.790769,"marketCap":29381202848},{"date":"2022-06-10","current":19.951902,"twenty":8.500791,"median":15.991048,"eighty":21.790769,"marketCap":28924272567},{"date":"2022-06-17","current":20.380237,"twenty":8.500791,"median":16.09785,"eighty":21.790769,"marketCap":29545229102},{"date":"2022-06-24","current":21.409654,"twenty":8.497203,"median":16.123616,"eighty":21.791778,"marketCap":31037575115},{"date":"2022-07-01","current":21.278325,"twenty":8.497203,"median":16.204744,"eighty":21.791778,"marketCap":30847187498},{"date":"2022-07-08","current":22.103677,"twenty":8.497203,"median":16.239917,"eighty":21.812733,"marketCap":32043700444},{"date":"2022-07-15","current":21.922847,"twenty":8.497203,"median":16.404704,"eighty":21.82315,"marketCap":31781551341},{"date":"2022-07-22","current":14.53456,"twenty":8.497203,"median":16.750724,"eighty":21.836233,"marketCap":29929565943},{"date":"2022-07-29","current":15.155406,"twenty":8.497203,"median":16.750724,"eighty":21.836233,"marketCap":31208011887},{"date":"2022-08-05","current":15.376684,"twenty":8.497203,"median":16.750724,"eighty":21.836233,"marketCap":31663666855},{"date":"2022-08-12","current":15.573297,"twenty":8.497203,"median":16.750724,"eighty":21.836233,"marketCap":32068532256},{"date":"2022-08-19","current":15.087049,"twenty":8.497203,"median":16.750724,"eighty":21.836233,"marketCap":31067252232},{"date":"2022-08-26","current":13.994755,"twenty":8.497203,"median":16.750724,"eighty":21.836233,"marketCap":28818000003},{"date":"2022-09-02","current":13.814351,"twenty":8.497203,"median":16.227739,"eighty":21.836233,"marketCap":28446510603},{"date":"2022-09-09","current":14.928491,"twenty":8.497203,"median":15.671251,"eighty":21.836233,"marketCap":30740747876},{"date":"2022-09-16","current":14.676206,"twenty":8.497203,"median":15.376684,"eighty":21.836233,"marketCap":30221243168},{"date":"2022-09-23","current":13.937674,"twenty":8.497203,"median":15.31326,"eighty":21.836233,"marketCap":28700458435},{"date":"2022-09-30","current":18.815649,"twenty":8.497203,"median":15.210215,"eighty":21.836233,"marketCap":38745183549},{"date":"2022-10-07","current":18.173661,"twenty":8.497203,"median":15.210215,"eighty":21.836233,"marketCap":37423203690},{"date":"2022-10-14","current":18.648633,"twenty":8.497203,"median":15.210215,"eighty":21.836233,"marketCap":38401265627},{"date":"2022-10-21","current":18.858988,"twenty":8.497203,"median":15.210215,"eighty":21.836233,"marketCap":38834428072},{"date":"2022-10-28","current":14.290557,"twenty":8.497203,"median":15.094801,"eighty":21.836233,"marketCap":40938159143},{"date":"2022-11-04","current":14.166396,"twenty":8.497203,"median":15.004599,"eighty":21.836233,"marketCap":40582475675},{"date":"2022-11-11","current":14.549938,"twenty":8.497203,"median":14.858725,"eighty":21.836233,"marketCap":41681206387},{"date":"2022-11-18","current":15.225533,"twenty":8.497203,"median":14.858725,"eighty":21.836233,"marketCap":43616585257},{"date":"2022-11-25","current":15.339138,"twenty":8.497203,"median":14.858725,"eighty":21.836233,"marketCap":43942028430},{"date":"2022-12-02","current":15.024966,"twenty":8.497203,"median":14.794781,"eighty":21.836233,"marketCap":43042019655},{"date":"2022-12-09","current":14.344846,"twenty":8.497203,"median":14.738925,"eighty":21.836233,"marketCap":41093680659},{"date":"2022-12-16","current":14.325242,"twenty":8.497203,"median":14.656474,"eighty":21.836233,"marketCap":41037520111},{"date":"2022-12-23","current":14.032685,"twenty":8.497203,"median":14.636742,"eighty":21.836233,"marketCap":40199431940},{"date":"2022-12-30","current":13.920085,"twenty":8.497203,"median":14.607243,"eighty":21.836233,"marketCap":39876868795},{"date":"2023-01-06","current":14.037209,"twenty":8.497203,"median":14.549938,"eighty":21.836233,"marketCap":40212392067},{"date":"2023-01-13","current":14.47906,"twenty":8.497203,"median":14.529831,"eighty":21.836233,"marketCap":41478164408},{"date":"2023-01-20","current":14.364953,"twenty":8.497203,"median":14.481071,"eighty":21.836233,"marketCap":41151281221},{"date":"2023-01-27","current":14.581606,"twenty":8.497203,"median":14.481071,"eighty":21.812733,"marketCap":41771927272},{"date":"2023-02-03","current":14.257381,"twenty":8.497203,"median":14.452921,"eighty":21.766456,"marketCap":40843118216},{"date":"2023-02-10","current":14.391595,"twenty":8.497203,"median":14.434492,"eighty":21.713568,"marketCap":41227601965},{"date":"2023-02-17","current":13.20093,"twenty":8.497203,"median":14.416076,"eighty":21.633442,"marketCap":40221914133},{"date":"2023-02-24","current":12.804494,"twenty":8.497203,"median":14.383753,"eighty":21.580551,"marketCap":39014014132},{"date":"2023-03-03","current":12.81635,"twenty":8.497203,"median":14.348868,"eighty":21.467685,"marketCap":39050135544},{"date":"2023-03-10","current":12.166214,"twenty":8.497203,"median":14.307145,"eighty":21.413931,"marketCap":37069237337},{"date":"2023-03-17","current":12.47919,"twenty":8.497203,"median":14.275339,"eighty":21.363363,"marketCap":38022842601},{"date":"2023-03-24","current":12.804969,"twenty":8.497203,"median":14.24783,"eighty":21.306875,"marketCap":39015458989},{"date":"2023-03-31","current":13.184333,"twenty":8.500791,"median":14.205292,"eighty":21.276954,"marketCap":40171344157},{"date":"2023-04-06","current":13.466959,"twenty":8.500791,"median":14.152478,"eighty":21.176842,"marketCap":41032478607},{"date":"2023-04-14","current":13.737731,"twenty":8.497203,"median":14.096524,"eighty":21.070262,"marketCap":41857491646},{"date":"2023-04-21","current":13.76476,"twenty":8.497203,"median":14.07932,"eighty":21.005659,"marketCap":41939848464},{"date":"2023-04-28","current":13.578317,"twenty":8.497203,"median":14.037209,"eighty":21.003669,"marketCap":42513709824},{"date":"2023-05-05","current":14.495964,"twenty":8.497203,"median":14.037209,"eighty":21.003669,"marketCap":45386864333},{"date":"2023-05-12","current":14.356816,"twenty":8.497203,"median":14.037209,"eighty":21.003669,"marketCap":44951189806},{"date":"2023-05-19","current":14.120586,"twenty":8.497203,"median":14.037209,"eighty":21.003669,"marketCap":44211556305},{"date":"2023-05-26","current":13.735963,"twenty":8.497203,"median":14.01426,"eighty":21.003669,"marketCap":43007299803},{"date":"2023-06-02","current":13.980051,"twenty":8.497203,"median":13.992973,"eighty":20.997841,"marketCap":43771539506},{"date":"2023-06-09","current":14.279151,"twenty":8.497203,"median":13.96784,"eighty":20.929644,"marketCap":44708022627},{"date":"2023-06-16","current":13.768323,"twenty":8.497203,"median":13.941165,"eighty":20.892332,"marketCap":43108619461},{"date":"2023-06-23","current":13.588955,"twenty":8.493614,"median":13.935626,"eighty":20.867377,"marketCap":42547019073},{"date":"2023-06-30","current":13.042531,"twenty":8.490026,"median":13.890459,"eighty":20.867651,"marketCap":40836164283},{"date":"2023-07-07","current":13.174745,"twenty":8.490026,"median":13.868177,"eighty":20.815502,"marketCap":41250127456},{"date":"2023-07-14","current":12.850219,"twenty":8.490026,"median":13.817874,"eighty":20.73251,"marketCap":40234036032},{"date":"2023-07-21","current":12.699051,"twenty":8.490026,"median":13.806693,"eighty":20.629889,"marketCap":39760728489},{"date":"2023-07-28","current":14.282866,"twenty":8.490026,"median":13.794619,"eighty":20.526137,"marketCap":38058124204},{"date":"2023-08-04","current":14.552446,"twenty":8.490026,"median":13.794619,"eighty":20.460449,"marketCap":38776447946},{"date":"2023-08-11","current":14.623646,"twenty":8.490026,"median":13.794619,"eighty":20.395995,"marketCap":38966166515},{"date":"2023-08-18","current":14.212753,"twenty":8.490026,"median":13.794619,"eighty":20.321644,"marketCap":37871302102},{"date":"2023-08-25","current":14.263299,"twenty":8.490026,"median":13.794619,"eighty":20.266979,"marketCap":38005987804},{"date":"2023-09-01","current":14.531249,"twenty":8.486438,"median":13.786176,"eighty":20.242472,"marketCap":38719966845},{"date":"2023-09-08","current":14.204057,"twenty":8.486438,"median":13.786176,"eighty":20.208919,"marketCap":37848130368},{"date":"2023-09-15","current":13.931216,"twenty":8.486438,"median":13.786176,"eighty":20.198211,"marketCap":37121117227},{"date":"2023-09-22","current":14.073071,"twenty":8.486438,"median":13.776523,"eighty":20.143845,"marketCap":37499106131},{"date":"2023-09-29","current":14.013285,"twenty":8.486438,"median":13.776523,"eighty":20.072921,"marketCap":37339800463},{"date":"2023-10-06","current":14.118726,"twenty":8.486438,"median":13.768434,"eighty":19.9917,"marketCap":37620757732},{"date":"2023-10-13","current":14.185034,"twenty":8.486438,"median":13.768434,"eighty":19.951902,"marketCap":37797442201},{"date":"2023-10-20","current":13.98448,"twenty":8.486438,"median":13.768434,"eighty":19.927657,"marketCap":37263044095},{"date":"2023-10-27","current":13.102908,"twenty":8.47807,"median":13.76476,"eighty":19.922756,"marketCap":34914009601},{"date":"2023-11-03","current":13.145302,"twenty":8.47807,"median":13.737731,"eighty":19.916955,"marketCap":35026971803},{"date":"2023-11-10","current":22.267999,"twenty":8.47807,"median":13.71992,"eighty":19.89329,"marketCap":32551360860},{"date":"2023-11-17","current":22.744781,"twenty":8.47807,"median":13.71992,"eighty":19.905271,"marketCap":33248320779},{"date":"2023-11-24","current":22.991597,"twenty":8.47807,"median":13.71992,"eighty":19.905271,"marketCap":33609117078},{"date":"2023-12-01","current":23.20273,"twenty":8.47807,"median":13.71992,"eighty":19.905271,"marketCap":33917750056},{"date":"2023-12-08","current":23.70231,"twenty":8.48086,"median":13.727942,"eighty":19.915471,"marketCap":34648036541},{"date":"2023-12-14","current":25.331893,"twenty":8.48086,"median":13.727942,"eighty":19.915471,"marketCap":37030161502},{"date":"2023-12-22","current":25.163384,"twenty":8.475281,"median":13.713268,"eighty":19.929934,"marketCap":36783834712},{"date":"2023-12-29","current":25.829491,"twenty":8.470794,"median":13.704438,"eighty":19.950281,"marketCap":37757550024},{"date":"2024-01-05","current":25.799754,"twenty":8.469944,"median":13.703558,"eighty":19.987922,"marketCap":37714080591},{"date":"2024-01-12","current":24.504216,"twenty":8.469944,"median":13.703558,"eighty":19.987922,"marketCap":35820262267},{"date":"2024-01-19","current":24.480426,"twenty":8.469095,"median":13.702678,"eighty":19.980718,"marketCap":35785486720},{"date":"2024-01-26","current":24.405092,"twenty":8.469944,"median":13.703558,"eighty":19.987922,"marketCap":35675364155},{"date":"2024-02-02","current":24.565672,"twenty":8.469944,"median":13.703558,"eighty":20.065327,"marketCap":35910099096},{"date":"2024-02-09","current":23.819275,"twenty":8.469944,"median":13.703558,"eighty":20.158998,"marketCap":34819016313},{"date":"2024-02-16","current":27.961704,"twenty":8.469944,"median":13.703558,"eighty":20.245941,"marketCap":32466334233},{"date":"2024-02-23","current":27.852786,"twenty":8.469944,"median":13.703558,"eighty":20.275821,"marketCap":32339870339},{"date":"2024-03-01","current":27.165481,"twenty":8.470794,"median":13.704438,"eighty":20.331364,"marketCap":31541839558},{"date":"2024-03-08","current":27.462186,"twenty":8.470794,"median":13.704438,"eighty":20.459236,"marketCap":31886344649},{"date":"2024-03-15","current":27.494736,"twenty":8.470794,"median":13.71992,"eighty":20.628123,"marketCap":31924138456},{"date":"2024-03-22","current":27.636204,"twenty":8.470794,"median":13.735963,"eighty":20.786154,"marketCap":32088396158},{"date":"2024-03-28","current":27.084106,"twenty":8.470794,"median":13.752143,"eighty":20.831794,"marketCap":31447355039},{"date":"2024-04-05","current":25.701982,"twenty":8.469944,"median":13.77193,"eighty":20.907169,"marketCap":29842571829},{"date":"2024-04-12","current":25.499171,"twenty":8.469944,"median":13.808789,"eighty":21.038884,"marketCap":29607087336},{"date":"2024-04-19","current":23.85164,"twenty":8.469944,"median":13.85217,"eighty":21.289275,"marketCap":27694139234},{"date":"2024-04-26","current":25.267913,"twenty":8.470794,"median":13.868177,"eighty":21.404478,"marketCap":29477547361},{"date":"2024-05-03","current":26.647002,"twenty":8.470794,"median":13.908932,"eighty":21.47563,"marketCap":31086393051},{"date":"2024-05-10","current":27.800196,"twenty":8.470794,"median":13.937674,"eighty":21.648875,"marketCap":32431708361},{"date":"2024-05-17","current":28.71002,"twenty":8.470794,"median":13.950238,"eighty":21.782935,"marketCap":33493109725},{"date":"2024-05-24","current":27.214863,"twenty":8.470794,"median":13.980051,"eighty":21.877959,"marketCap":31748858923},{"date":"2024-05-31","current":27.46572,"twenty":8.470794,"median":13.994755,"eighty":22.000262,"marketCap":32041508682},{"date":"2024-06-07","current":28.953389,"twenty":8.470794,"median":14.01426,"eighty":22.073132,"marketCap":33777023671},{"date":"2024-06-14","current":29.184277,"twenty":8.469944,"median":14.041825,"eighty":22.114991,"marketCap":34046377926},{"date":"2024-06-21","current":28.153392,"twenty":8.469095,"median":14.072528,"eighty":22.189441,"marketCap":32843747574},{"date":"2024-06-28","current":28.545278,"twenty":8.464282,"median":14.07812,"eighty":22.231423,"marketCap":33300921824},{"date":"2024-07-05","current":28.032332,"twenty":8.464282,"median":14.08367,"eighty":22.274713,"marketCap":32702518585},{"date":"2024-07-12","current":29.553699,"twenty":8.464282,"median":14.11215,"eighty":22.314226,"marketCap":34477344736},{"date":"2024-07-15","current":28.712516,"twenty":8.464282,"median":14.119656,"eighty":22.340794,"marketCap":33496021663},{"date":"2024-08-02","current":26.48965,"twenty":8.513869,"median":14.166396,"eighty":22.380755,"marketCap":30690907969},{"date":"2024-08-09","current":25.656112,"twenty":8.592131,"median":14.204057,"eighty":22.479723,"marketCap":29725171282},{"date":"2024-08-16","current":25.34935,"twenty":8.71649,"median":14.24783,"eighty":22.562257,"marketCap":29369756876},{"date":"2024-08-23","current":25.56182,"twenty":8.771928,"median":14.263299,"eighty":22.739957,"marketCap":29615925051},{"date":"2024-08-30","current":25.750404,"twenty":8.883073,"median":14.292141,"eighty":22.781193,"marketCap":29834417514},{"date":"2024-09-06","current":25.370723,"twenty":9.022005,"median":14.304126,"eighty":22.950917,"marketCap":29394519355},{"date":"2024-09-13","current":24.879149,"twenty":9.165962,"median":14.325242,"eighty":22.991597,"marketCap":28824982335},{"date":"2024-09-20","current":25.325463,"twenty":9.324413,"median":14.348868,"eighty":23.181914,"marketCap":29342081164},{"date":"2024-09-27","current":24.339801,"twenty":9.391209,"median":14.369659,"eighty":23.258238,"marketCap":28200093891},{"date":"2024-10-04","current":23.230932,"twenty":9.429088,"median":14.383753,"eighty":23.324305,"marketCap":26915358208},{"date":"2024-10-11","current":23.709934,"twenty":9.504668,"median":14.406786,"eighty":23.460277,"marketCap":27470329064},{"date":"2024-10-18","current":23.830627,"twenty":9.553828,"median":14.419745,"eighty":23.728792,"marketCap":27610164241},{"date":"2024-10-25","current":23.115268,"twenty":9.604326,"median":14.473094,"eighty":23.76148,"marketCap":26781349498},{"date":"2024-10-31","current":16.34561,"twenty":9.604326,"median":14.485595,"eighty":23.76148,"marketCap":26401430021},{"date":"2024-11-08","current":15.690631,"twenty":9.628672,"median":14.521195,"eighty":23.763004,"marketCap":25343507612},{"date":"2024-11-15","current":14.875967,"twenty":9.644632,"median":14.532646,"eighty":23.763004,"marketCap":24027661972},{"date":"2024-11-22","current":14.255271,"twenty":9.699532,"median":14.532646,"eighty":23.763004,"marketCap":23025112913},{"date":"2024-11-29","current":14.49164,"twenty":9.699532,"median":14.532646,"eighty":23.763004,"marketCap":23406897584},{"date":"2024-12-06","current":14.368042,"twenty":9.707445,"median":14.533753,"eighty":23.763004,"marketCap":23207262088},{"date":"2024-12-13","current":14.013488,"twenty":9.707445,"median":14.533753,"eighty":23.763004,"marketCap":22634585082},{"date":"2024-12-20","current":13.29716,"twenty":9.707445,"median":14.533753,"eighty":23.763004,"marketCap":21477573522},{"date":"2024-12-27","current":13.523606,"twenty":9.707445,"median":14.533753,"eighty":23.763004,"marketCap":21843329066},{"date":"2025-01-03","current":13.532628,"twenty":9.707445,"median":14.533753,"eighty":23.763004,"marketCap":21857901000},{"date":"2025-01-10","current":13.600291,"twenty":9.764574,"median":14.53456,"eighty":23.764528,"marketCap":21967190505},{"date":"2025-01-17","current":12.74142,"twenty":9.816223,"median":14.53456,"eighty":23.764528,"marketCap":20579942388},{"date":"2025-01-24","current":12.961551,"twenty":9.886141,"median":14.53456,"eighty":23.764528,"marketCap":20935497577},{"date":"2025-01-31","current":13.192508,"twenty":9.95619,"median":14.53456,"eighty":23.764528,"marketCap":21308539088},{"date":"2025-02-07","current":12.844268,"twenty":9.977934,"median":14.53456,"eighty":23.764528,"marketCap":20746062435},{"date":"2025-02-14","current":12.416132,"twenty":10.002015,"median":14.53456,"eighty":23.764528,"marketCap":20265610027},{"date":"2025-02-21","current":12.293271,"twenty":10.031403,"median":14.53456,"eighty":23.764528,"marketCap":20065076363},{"date":"2025-02-28","current":12.544373,"twenty":10.117917,"median":14.53456,"eighty":23.764528,"marketCap":20474926187},{"date":"2025-03-07","current":13.216073,"twenty":10.153098,"median":14.534807,"eighty":23.766052,"marketCap":21571274465},{"date":"2025-03-14","current":12.553341,"twenty":10.179175,"median":14.534807,"eighty":23.766052,"marketCap":20489563681},{"date":"2025-03-21","current":12.678893,"twenty":10.263071,"median":14.534807,"eighty":23.766052,"marketCap":20694488593},{"date":"2025-03-28","current":12.584729,"twenty":10.356971,"median":14.534807,"eighty":23.766052,"marketCap":20540794909},{"date":"2025-04-04","current":11.722012,"twenty":10.485219,"median":14.534807,"eighty":23.766052,"marketCap":19132668015},{"date":"2025-04-11","current":10.167866,"twenty":10.511569,"median":14.53456,"eighty":23.764528,"marketCap":16595990357},{"date":"2025-04-17","current":10.339154,"twenty":10.525201,"median":14.53456,"eighty":23.764528,"marketCap":16875566486},{"date":"2025-04-25","current":10.717601,"twenty":10.591105,"median":14.534807,"eighty":23.766052,"marketCap":17493268720},{"date":"2025-05-02","current":11.978375,"twenty":10.630526,"median":14.534807,"eighty":23.766052,"marketCap":17719610723},{"date":"2025-05-09","current":11.726783,"twenty":10.67025,"median":14.534807,"eighty":23.766052,"marketCap":17347430030},{"date":"2025-05-16","current":12.25275,"twenty":10.766755,"median":14.534807,"eighty":23.766052,"marketCap":18125492818},{"date":"2025-05-23","current":12.510285,"twenty":10.926554,"median":14.534807,"eighty":23.766052,"marketCap":18506465181},{"date":"2025-05-30","current":13.149172,"twenty":11.711799,"median":14.534807,"eighty":23.766052,"marketCap":19451569698},{"date":"2025-06-06","current":12.912437,"twenty":11.91657,"median":14.534807,"eighty":23.766052,"marketCap":19101368179},{"date":"2025-06-13","current":13.105589,"twenty":12.213922,"median":14.534807,"eighty":23.766052,"marketCap":19387097451},{"date":"2025-06-20","current":12.534058,"twenty":12.262814,"median":14.535054,"eighty":23.767576,"marketCap":18541631861},{"date":"2025-06-27","current":12.571698,"twenty":12.329218,"median":14.535054,"eighty":23.767576,"marketCap":18597312437},{"date":"2025-07-03","current":13.161058,"twenty":12.420897,"median":14.535054,"eighty":23.767576,"marketCap":19469153037},{"date":"2025-07-11","current":13.404726,"twenty":12.46391,"median":14.535054,"eighty":23.767576,"marketCap":19829611504},{"date":"2025-07-18","current":12.74702,"twenty":12.505988,"median":14.535054,"eighty":23.767576,"marketCap":18856666700},{"date":"2025-07-25","current":13.133323,"twenty":12.534454,"median":14.535054,"eighty":23.767576,"marketCap":19428125244},{"date":"2025-08-01","current":12.261789,"twenty":12.554823,"median":14.535054,"eighty":23.767576,"marketCap":18766668544},{"date":"2025-08-08","current":12.237841,"twenty":12.571793,"median":14.535054,"eighty":23.767576,"marketCap":18730014894},{"date":"2025-08-15","current":12.926608,"twenty":12.574688,"median":14.535054,"eighty":23.767576,"marketCap":19784173854},{"date":"2025-08-22","current":13.327032,"twenty":12.599257,"median":14.535054,"eighty":23.767576,"marketCap":20397022873},{"date":"2025-08-29","current":12.707237,"twenty":12.629742,"median":14.535054,"eighty":23.767576,"marketCap":19448426424},{"date":"2025-09-05","current":13.405584,"twenty":12.664129,"median":14.542496,"eighty":23.7691,"marketCap":20517246844},{"date":"2025-09-12","current":14.258162,"twenty":12.679129,"median":14.535054,"eighty":23.767576,"marketCap":21822116766},{"date":"2025-09-19","current":13.776312,"twenty":12.704997,"median":14.535054,"eighty":23.767576,"marketCap":21084645338},{"date":"2025-09-26","current":12.996539,"twenty":12.719227,"median":14.535054,"eighty":23.767576,"marketCap":19891202510},{"date":"2025-10-03","current":14.872209,"twenty":12.744689,"median":14.552446,"eighty":23.767576,"marketCap":22761916339},{"date":"2025-10-10","current":14.331924,"twenty":12.768217,"median":14.566034,"eighty":23.767576,"marketCap":21935010006},{"date":"2025-10-17","current":13.627829,"twenty":12.800753,"median":14.566034,"eighty":23.767576,"marketCap":20857392711},{"date":"2025-10-24","current":14.376948,"twenty":12.815401,"median":14.566034,"eighty":23.767576,"marketCap":22003918867},{"date":"2025-10-31","current":13.64509,"twenty":12.835544,"median":14.566034,"eighty":23.767576,"marketCap":21948126913},{"date":"2025-11-07","current":14.295377,"twenty":12.856703,"median":14.566034,"eighty":23.767576,"marketCap":22994114113},{"date":"2025-11-14","current":15.0241,"twenty":12.876589,"median":14.580992,"eighty":23.767576,"marketCap":24166265266},{"date":"2025-11-21","current":15.338755,"twenty":12.892701,"median":14.616037,"eighty":23.767576,"marketCap":24672388104},{"date":"2025-11-28","current":16.606041,"twenty":12.898117,"median":14.627581,"eighty":23.767576,"marketCap":26710816174},{"date":"2025-12-05","current":16.597376,"twenty":12.924896,"median":14.649467,"eighty":23.767576,"marketCap":26696879458},{"date":"2025-12-12","current":15.732758,"twenty":12.948031,"median":14.673093,"eighty":23.767576,"marketCap":25306141920},{"date":"2025-12-19","current":15.496539,"twenty":12.985946,"median":14.68566,"eighty":23.767576,"marketCap":24926183035},{"date":"2025-12-26","current":16.082071,"twenty":13.017105,"median":14.703532,"eighty":23.767576,"marketCap":25868011621},{"date":"2026-01-02","current":16.051062,"twenty":13.027533,"median":14.741587,"eighty":23.767576,"marketCap":25818132849},{"date":"2026-01-09","current":16.964018,"twenty":13.056182,"median":14.759523,"eighty":23.767576,"marketCap":27286622592},{"date":"2026-01-16","current":15.374325,"twenty":13.098281,"median":14.872209,"eighty":23.767576,"marketCap":24729601991},{"date":"2026-01-23","current":15.851324,"twenty":13.128961,"median":14.928491,"eighty":23.767576,"marketCap":25496854873},{"date":"2026-01-30","current":16.068391,"twenty":13.14966,"median":15.01954,"eighty":23.767576,"marketCap":25846006280},{"date":"2026-02-06","current":16.905647,"twenty":13.163795,"median":15.052519,"eighty":23.767576,"marketCap":27192733137},{"date":"2026-02-13","current":22.191424,"twenty":13.184432,"median":15.087049,"eighty":23.767576,"marketCap":28691292224},{"date":"2026-02-18","current":22.205045,"twenty":13.187075,"median":15.155406,"eighty":23.767576,"marketCap":28708903247}],"updateTime":1771517919149},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"BIIB\",pageSize:20,pageCount:1,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"20726348","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312526046803-BIIB","pdf_url":"","pub_time":1770786000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000119312526046803/0001193125-26-046803-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;\nItem 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/875045/000119312526046803/d937279d8k.htm","primary":true,"translateUrl":"","linkName":"d937279d8k.htm","type":"8-K","id":"NTFILEAYJfP9PEL8uPLat4","market":"us","size":21531}],"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":"2026-02-11 13:00","pubTimestamp":1770786000,"title_zh":"Form 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;\nItem 8.01: Other Events","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20715168","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917326000739-BIIB","pdf_url":"","pub_time":1770613200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"BIIB","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000195917326000739/0001959173-26-000739-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000195917326000739/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE9QQUaWVooSrJjSvU","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-02-09 13:00","pubTimestamp":1770613200,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20708884","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504526000013-BIIB","pdf_url":"","pub_time":1770354000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"BIIB","title":"Form 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/875045/000087504526000013/0000875045-26-000013-index.htm","us_notice_code":"Form 10-K","us_title_en":"Form 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/875045/000087504526000013/biib-20251231.htm","primary":true,"translateUrl":"","linkName":"biib-20251231.htm","type":"10-K","id":"NTFILEHWiNiMD5zHSpZKwC","market":"us","size":4293142},{"description":"EX-19.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/exhibit191-insidertradinga.htm","primary":false,"translateUrl":"","linkName":"exhibit191-insidertradinga.htm","type":"EX-19.1","id":"NTFILE3XBoH8NZAoWTR1TF","market":"us","size":140048},{"description":"EX-21","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231xex21.htm","primary":false,"translateUrl":"","linkName":"biib-20251231xex21.htm","type":"EX-21","id":"NTFILE2xQAnoPU8QqGZUj8","market":"us","size":50799},{"description":"EX-23","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231xex23.htm","primary":false,"translateUrl":"","linkName":"biib-20251231xex23.htm","type":"EX-23","id":"NTFILEAnQKvbDhektW1kHV","market":"us","size":2753},{"description":"EX-31.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231xex311.htm","primary":false,"translateUrl":"","linkName":"biib-20251231xex311.htm","type":"EX-31.1","id":"NTFILE6ymB32qECesR8itd","market":"us","size":10945},{"description":"EX-31.2","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231xex312.htm","primary":false,"translateUrl":"","linkName":"biib-20251231xex312.htm","type":"EX-31.2","id":"NTFILE5zoFC1JgkHju38MW","market":"us","size":10679},{"description":"EX-32.1","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231xex321.htm","primary":false,"translateUrl":"","linkName":"biib-20251231xex321.htm","type":"EX-32.1","id":"NTFILE7kLWZVAcQdBDd3La","market":"us","size":8860},{"description":"","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g1.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g1.jpg","type":"GRAPHIC","id":"NTFILEAS2vd1JyFa4kEbVn","market":"us","size":14533},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g10.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g10.jpg","type":"GRAPHIC","id":"NTFILEFvqXGvrjuDLSyi61","market":"us","size":22513},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g11.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g11.jpg","type":"GRAPHIC","id":"NTFILE81pRWYSsB2h5YxCn","market":"us","size":17062},{"description":"","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g12.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g12.jpg","type":"GRAPHIC","id":"NTFILE5UUd8jkaP9bEHect","market":"us","size":15572},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g13.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g13.jpg","type":"GRAPHIC","id":"NTFILE8kayYLxLir5qjjtQ","market":"us","size":12986},{"description":"","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g14.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g14.jpg","type":"GRAPHIC","id":"NTFILE3dsuTAXKGdsjRNqa","market":"us","size":13199},{"description":"","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g15.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g15.jpg","type":"GRAPHIC","id":"NTFILE7rkd2vpRG7UAsJxv","market":"us","size":12208},{"description":"","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g16.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g16.jpg","type":"GRAPHIC","id":"NTFILE5x7Hs1ropqs6geos","market":"us","size":10352},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g17.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g17.jpg","type":"GRAPHIC","id":"NTFILEAw3qQ4depaK9d8cJ","market":"us","size":10791},{"description":"","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g18.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g18.jpg","type":"GRAPHIC","id":"NTFILEHJtWPdiotQagwTqW","market":"us","size":23004},{"description":"","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g19.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g19.jpg","type":"GRAPHIC","id":"NTFILEA5Hx9ufiESMMqvxh","market":"us","size":27865},{"description":"","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g2.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g2.jpg","type":"GRAPHIC","id":"NTFILEA4yj4n2gtArxJa2A","market":"us","size":167663},{"description":"","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g20.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g20.jpg","type":"GRAPHIC","id":"NTFILEFGEQynzYhPJrw9tX","market":"us","size":11887},{"description":"","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g21.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g21.jpg","type":"GRAPHIC","id":"NTFILE4jFRXHpAS4ZM81zz","market":"us","size":15675},{"description":"","seq":27,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g22.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g22.jpg","type":"GRAPHIC","id":"NTFILE138q5axnhVKhHtcN","market":"us","size":117592},{"description":"","seq":28,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g23.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g23.jpg","type":"GRAPHIC","id":"NTFILE3Z1HbaeFngRQEzgH","market":"us","size":15534},{"description":"","seq":29,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g24.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g24.jpg","type":"GRAPHIC","id":"NTFILE3zrwknPM8q8JZcUE","market":"us","size":12931},{"description":"","seq":30,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g25.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g25.jpg","type":"GRAPHIC","id":"NTFILE6wJMc5bv69eHviYP","market":"us","size":16762},{"description":"","seq":31,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g26.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g26.jpg","type":"GRAPHIC","id":"NTFILE3qzSb1xyt58GDRhS","market":"us","size":15667},{"description":"","seq":32,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g27.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g27.jpg","type":"GRAPHIC","id":"NTFILEJBy3wEHVJgL9Kjxr","market":"us","size":55919},{"description":"","seq":33,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g28.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g28.jpg","type":"GRAPHIC","id":"NTFILEECvZnUcBjPiuT6SF","market":"us","size":89458},{"description":"","seq":34,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g29.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g29.jpg","type":"GRAPHIC","id":"NTFILECgWfa6H1J7jgbae5","market":"us","size":82613},{"description":"","seq":35,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g3.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g3.jpg","type":"GRAPHIC","id":"NTFILE7YJYkPEBUUkJkWsw","market":"us","size":11034},{"description":"","seq":36,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g30.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g30.jpg","type":"GRAPHIC","id":"NTFILEB37UD7gBUMihSVrg","market":"us","size":111985},{"description":"","seq":37,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g4.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g4.jpg","type":"GRAPHIC","id":"NTFILE56z6hxQpSn9cUHnw","market":"us","size":8296},{"description":"","seq":38,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g5.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g5.jpg","type":"GRAPHIC","id":"NTFILEEx54TQUkf4aLCTbL","market":"us","size":12294},{"description":"","seq":39,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g6.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g6.jpg","type":"GRAPHIC","id":"NTFILEGQATkmPKdduS3qpc","market":"us","size":9588},{"description":"","seq":40,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g7.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g7.jpg","type":"GRAPHIC","id":"NTFILEzRtm2taPY27btRn7","market":"us","size":8254},{"description":"","seq":41,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g8.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g8.jpg","type":"GRAPHIC","id":"NTFILE8N5BasGMWKh1Fdn5","market":"us","size":25230},{"description":"","seq":42,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000013/biib-20251231_g9.jpg","primary":false,"translateUrl":"","linkName":"biib-20251231_g9.jpg","type":"GRAPHIC","id":"NTFILEH6A3fTf2tFvy1hiG","market":"us","size":73467}],"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":"2026-02-06 13:00","pubTimestamp":1770354000,"title_zh":"Form 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":"20708759","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504526000011-BIIB","pdf_url":"","pub_time":1770354000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000011/0000875045-26-000011-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\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/875045/000087504526000011/exhibit991-q42025pressrele.htm","primary":true,"translateUrl":"","linkName":"exhibit991-q42025pressrele.htm","type":"EX-99.1","id":"NTFILEFPLWBtVEfxyZWcLS","market":"us","size":595124},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000011/biib-20260206.htm","primary":false,"translateUrl":"","linkName":"biib-20260206.htm","type":"8-K","id":"NTFILE7YW3WSTagxED2gaL","market":"us","size":24107},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000011/newbiogenlogoa.jpg","primary":false,"translateUrl":"","linkName":"newbiogenlogoa.jpg","type":"GRAPHIC","id":"NTFILE9Z6Z6C8Dn9Cy4w7x","market":"us","size":2811}],"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":"2026-02-06 13:00","pubTimestamp":1770354000,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20688158","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917326000517-BIIB","pdf_url":"","pub_time":1770008400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"BIIB","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000195917326000517/0001959173-26-000517-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000195917326000517/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE8RGc2oWJ8XjGkVkC","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-02-02 13:00","pubTimestamp":1770008400,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20633071","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504526000003-BIIB","pdf_url":"","pub_time":1768343934000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/0000875045-26-000003-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000003/biib-20260113_g1.jpg","primary":true,"translateUrl":"","linkName":"biib-20260113_g1.jpg","type":"GRAPHIC","id":"NTFILE2K6gCVPHeN3q4C9Z","market":"us","size":2811},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504526000003/biib-20260113.htm","primary":false,"translateUrl":"","linkName":"biib-20260113.htm","type":"8-K","id":"NTFILE9xvJAphoBWhzTcrR","market":"us","size":25087}],"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":"2026-01-14 06:38","pubTimestamp":1768343934,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20345528","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504525000049-BIIB","pdf_url":"","pub_time":1761796800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"BIIB","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/0000875045-25-000049-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/875045/000087504525000049/biib-20250930.htm","primary":true,"translateUrl":"","linkName":"biib-20250930.htm","type":"10-Q","id":"NTFILE8CetxxVjJ3DqHVPr","market":"us","size":3073619},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-2025930xex311.htm","primary":false,"translateUrl":"","linkName":"biib-2025930xex311.htm","type":"EX-31.1","id":"NTFILECJQuFYW4NdZTC4Dw","market":"us","size":11235},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-2025930xex312.htm","primary":false,"translateUrl":"","linkName":"biib-2025930xex312.htm","type":"EX-31.2","id":"NTFILEHeUEhEzXHBub8u86","market":"us","size":10662},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-2025930xex321.htm","primary":false,"translateUrl":"","linkName":"biib-2025930xex321.htm","type":"EX-32.1","id":"NTFILEDV3mbr3dHZzfaQL9","market":"us","size":9306},{"description":"","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g1.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g1.jpg","type":"GRAPHIC","id":"NTFILEHPwPHfhuJwgZZhNy","market":"us","size":62626},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g10.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g10.jpg","type":"GRAPHIC","id":"NTFILEBqfW15dPiPNVgYtH","market":"us","size":83181},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g11.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g11.jpg","type":"GRAPHIC","id":"NTFILE3siz3Uq3v85SczNW","market":"us","size":96314},{"description":"","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g12.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g12.jpg","type":"GRAPHIC","id":"NTFILE3aRuYuBxru1XVr9V","market":"us","size":105240},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g2.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g2.jpg","type":"GRAPHIC","id":"NTFILE74Mqj5uLoGZtwpbD","market":"us","size":16574},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g3.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g3.jpg","type":"GRAPHIC","id":"NTFILE6GGrEeyW1oRzFgiP","market":"us","size":13028},{"description":"","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g4.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g4.jpg","type":"GRAPHIC","id":"NTFILE9N5nUrbMzSns7ANX","market":"us","size":17271},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g5.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g5.jpg","type":"GRAPHIC","id":"NTFILE8jEAdcDeKjVCvf6h","market":"us","size":16190},{"description":"","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g6.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g6.jpg","type":"GRAPHIC","id":"NTFILEBYW2fJgQKp5DXuwF","market":"us","size":45047},{"description":"","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g7.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g7.jpg","type":"GRAPHIC","id":"NTFILE36UZrkz9ZByR146R","market":"us","size":46763},{"description":"","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g8.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g8.jpg","type":"GRAPHIC","id":"NTFILEDxmoesHszBopjeeD","market":"us","size":71989},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000049/biib-20250930_g9.jpg","primary":false,"translateUrl":"","linkName":"biib-20250930_g9.jpg","type":"GRAPHIC","id":"NTFILEFRD4Nxa5dd3wnLyo","market":"us","size":70436}],"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":"2025-10-30 12:00","pubTimestamp":1761796800,"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":"20344603","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504525000047-BIIB","pdf_url":"","pub_time":1761796800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000047/0000875045-25-000047-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\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/875045/000087504525000047/exhibit991-q32025pressrele.htm","primary":true,"translateUrl":"","linkName":"exhibit991-q32025pressrele.htm","type":"EX-99.1","id":"NTFILEC2Jrfk7Bbx165EYu","market":"us","size":583847},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000047/biib-20251030.htm","primary":false,"translateUrl":"","linkName":"biib-20251030.htm","type":"8-K","id":"NTFILEDTFt8uHxAeYtWxzZ","market":"us","size":24098},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000047/newbiogenlogoa.jpg","primary":false,"translateUrl":"","linkName":"newbiogenlogoa.jpg","type":"GRAPHIC","id":"NTFILE6ri7ACTdTXyBhjg8","market":"us","size":2811}],"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":"2025-10-30 12:00","pubTimestamp":1761796800,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20264701","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504525000040-BIIB","pdf_url":"","pub_time":1760414400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000040/0000875045-25-000040-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000040/biib-20251014_g1.jpg","primary":true,"translateUrl":"","linkName":"biib-20251014_g1.jpg","type":"GRAPHIC","id":"NTFILEFMCkW8ykHBoeewTk","market":"us","size":2811},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000040/biib-20251014.htm","primary":false,"translateUrl":"","linkName":"biib-20251014.htm","type":"8-K","id":"NTFILE2NvQWVvKBjGvAChZ","market":"us","size":27491}],"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":"2025-10-14 12:00","pubTimestamp":1760414400,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20119297","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917325005676-BIIB","pdf_url":"","pub_time":1756785600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"BIIB","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000195917325005676/0001959173-25-005676-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000195917325005676/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEBH4ituNw94mEFB1G","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-09-02 12:00","pubTimestamp":1756785600,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19930285","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504525000033-BIIB","pdf_url":"","pub_time":1753934400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"BIIB","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/0000875045-25-000033-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/875045/000087504525000033/biib-20250630.htm","primary":true,"translateUrl":"","linkName":"biib-20250630.htm","type":"10-Q","id":"NTFILECL61vjr39YYTN5kz","market":"us","size":2978931},{"description":"EX-10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/exhibit101-priyasinghalemp.htm","primary":false,"translateUrl":"","linkName":"exhibit101-priyasinghalemp.htm","type":"EX-10.1","id":"NTFILEHaECHp3jLjNWgVFE","market":"us","size":13879},{"description":"EX-31.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-2025630xex311.htm","primary":false,"translateUrl":"","linkName":"biib-2025630xex311.htm","type":"EX-31.1","id":"NTFILE7dCbQtLToG5Jr9QQ","market":"us","size":11232},{"description":"EX-31.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-2025630xex312.htm","primary":false,"translateUrl":"","linkName":"biib-2025630xex312.htm","type":"EX-31.2","id":"NTFILE7Rdg1b6HFYvVr3nn","market":"us","size":10659},{"description":"EX-32.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-2025630xex321.htm","primary":false,"translateUrl":"","linkName":"biib-2025630xex321.htm","type":"EX-32.1","id":"NTFILEG96yhJwoVReHy8Ci","market":"us","size":9295},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g1.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g1.jpg","type":"GRAPHIC","id":"NTFILEZ3eSt9Rq1XgvChcL","market":"us","size":62626},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g10.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g10.jpg","type":"GRAPHIC","id":"NTFILEFxDqdk7KWrLwR4JH","market":"us","size":79462},{"description":"","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g11.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g11.jpg","type":"GRAPHIC","id":"NTFILEFGsB279YFuXnEYzi","market":"us","size":92290},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g12.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g12.jpg","type":"GRAPHIC","id":"NTFILE9sBEG3drqYbTfrnr","market":"us","size":101395},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g2.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g2.jpg","type":"GRAPHIC","id":"NTFILEqgPeuhzD9ELN8yio","market":"us","size":16188},{"description":"","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g3.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g3.jpg","type":"GRAPHIC","id":"NTFILEGoCjKi7UR9CVV2nX","market":"us","size":13701},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g4.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g4.jpg","type":"GRAPHIC","id":"NTFILEB8WAFRiu8R1Bp6ZT","market":"us","size":17542},{"description":"","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g5.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g5.jpg","type":"GRAPHIC","id":"NTFILE4xN4MtmJsdrMXiYu","market":"us","size":15412},{"description":"","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g6.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g6.jpg","type":"GRAPHIC","id":"NTFILE13n3HVdHTHTcAzAT","market":"us","size":44432},{"description":"","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g7.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g7.jpg","type":"GRAPHIC","id":"NTFILEHDzq3xpsa8pW5bB5","market":"us","size":44896},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g8.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g8.jpg","type":"GRAPHIC","id":"NTFILEENwawPmQMdbt8tDw","market":"us","size":70528},{"description":"","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/biib-20250630_g9.jpg","primary":false,"translateUrl":"","linkName":"biib-20250630_g9.jpg","type":"GRAPHIC","id":"NTFILE4VKMsEHhSCVS4t4s","market":"us","size":67822},{"description":"","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000033/newbiogenlogo.jpg","primary":false,"translateUrl":"","linkName":"newbiogenlogo.jpg","type":"GRAPHIC","id":"NTFILED3UKaVjXEdPNVUaT","market":"us","size":2811}],"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":"2025-07-31 12:00","pubTimestamp":1753934400,"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":"19930250","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504525000035-BIIB","pdf_url":"","pub_time":1753934400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000035/0000875045-25-000035-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\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/875045/000087504525000035/exhibit991-q22025pressrele.htm","primary":true,"translateUrl":"","linkName":"exhibit991-q22025pressrele.htm","type":"EX-99.1","id":"NTFILEHKrxGEc47iG4dY5c","market":"us","size":555547},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000035/biib-20250731.htm","primary":false,"translateUrl":"","linkName":"biib-20250731.htm","type":"8-K","id":"NTFILEDKTQ1zP4W2Tf6Dcw","market":"us","size":24082},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000035/newbiogenlogo.jpg","primary":false,"translateUrl":"","linkName":"newbiogenlogo.jpg","type":"GRAPHIC","id":"NTFILE2JhWNtVaYh2um19F","market":"us","size":2811}],"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":"2025-07-31 12:00","pubTimestamp":1753934400,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19859334","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917325004498-BIIB","pdf_url":"","pub_time":1751947200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"BIIB","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000195917325004498/0001959173-25-004498-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000195917325004498/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEAJH4YKLuD5Rra1GQ","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-07-08 12:00","pubTimestamp":1751947200,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19856514","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504525000027-BIIB","pdf_url":"","pub_time":1751919034000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/0000875045-25-000027-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000027/biib-20250707_g1.jpg","primary":true,"translateUrl":"","linkName":"biib-20250707_g1.jpg","type":"GRAPHIC","id":"NTFILEBss6ix1DprZmBJN3","market":"us","size":2811},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000027/biib-20250707.htm","primary":false,"translateUrl":"","linkName":"biib-20250707.htm","type":"8-K","id":"NTFILE9XHjSJz89QDDgw2m","market":"us","size":27477}],"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":"2025-07-08 04:10","pubTimestamp":1751919034,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19799208","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504525000023-BIIB","pdf_url":"","pub_time":1750651200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000023/0000875045-25-000023-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.07: Submission of Matters to a Vote of Security Holders;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000023/biib-20250617_g1.jpg","primary":true,"translateUrl":"","linkName":"biib-20250617_g1.jpg","type":"GRAPHIC","id":"NTFILEBUfCV11bRvgHS95H","market":"us","size":2811},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000023/biib-20250617.htm","primary":false,"translateUrl":"","linkName":"biib-20250617.htm","type":"8-K","id":"NTFILE7uLUjfN4wavxLghJ","market":"us","size":56199}],"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":"2025-06-23 12:00","pubTimestamp":1750651200,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19665607","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917325003316-BIIB","pdf_url":"","pub_time":1747627200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"BIIB","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000195917325003316/0001959173-25-003316-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000195917325003316/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE2cwo3vTkG2piCFZ9","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2025-05-19 12:00","pubTimestamp":1747627200,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19632393","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312525117854-BIIB","pdf_url":"","pub_time":1747082712000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/0001193125-25-117854-index.html","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/875045/000119312525117854/d13940dex11.htm","primary":true,"translateUrl":"","linkName":"d13940dex11.htm","type":"EX-1.1","id":"NTFILE7esm9WxewSf1kQHS","market":"us","size":142682},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000119312525117854/d13940d8k.htm","primary":false,"translateUrl":"","linkName":"d13940d8k.htm","type":"8-K","id":"NTFILEJ4RwWNsS74m8iPnP","market":"us","size":29116},{"description":"EX-4.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000119312525117854/d13940dex42.htm","primary":false,"translateUrl":"","linkName":"d13940dex42.htm","type":"EX-4.2","id":"NTFILEDZFzfrMKaEquYNeV","market":"us","size":181287},{"description":"EX-5.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000119312525117854/d13940dex51.htm","primary":false,"translateUrl":"","linkName":"d13940dex51.htm","type":"EX-5.1","id":"NTFILEBTsPaGKKyTWgUE7p","market":"us","size":9429},{"description":"GRAPHIC","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000119312525117854/g13940g0508072051097.jpg","primary":false,"translateUrl":"","linkName":"g13940g0508072051097.jpg","type":"GRAPHIC","id":"NTFILEfpPd7voSWnXD3Knt","market":"us","size":4136}],"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":"2025-05-13 04:45","pubTimestamp":1747082712,"title_zh":"Form 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},{"cdn_pdf":false,"hasAttachments":true,"id":"19606201","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312525113926-BIIB","pdf_url":"","pub_time":1746504000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses","symbol":"BIIB","title":"Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses","titleType":"[Supp]Public Prospectus","type":"usProspectusesRegistrations","url":"https://www.sec.gov/Archives/edgar/data/875045/000119312525113926/0001193125-25-113926-index.htm","us_notice_code":"Form FWP","us_title_en":"Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FWP","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000119312525113926/d905655dfwp.htm","primary":true,"translateUrl":"","linkName":"d905655dfwp.htm","type":"FWP","id":"NTFILECRcEk65C3Udo1NVf","market":"us","size":24585}],"type_name":"Recruitment Registration","type_name_en":"Recruitment Registration","titleTypeEn":"[Supp]Public Prospectus","us_type":"招股注册","us_type_zh":"招股注册","earn_infos":[],"event_type":"important_notice","event_name":"[Supp]Public Prospectus","pubTime":"2025-05-06 12:00","pubTimestamp":1746504000,"title_zh":"Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"19591034","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504525000018-BIIB","pdf_url":"","pub_time":1746072000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"BIIB","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/0000875045-25-000018-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/875045/000087504525000018/biib-20250331.htm","primary":true,"translateUrl":"","linkName":"biib-20250331.htm","type":"10-Q","id":"NTFILE66tEhRYM2jK4EMed","market":"us","size":2222469},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-2025331xex311.htm","primary":false,"translateUrl":"","linkName":"biib-2025331xex311.htm","type":"EX-31.1","id":"NTFILE89wVmWU6kL7no9v7","market":"us","size":11230},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-2025331xex312.htm","primary":false,"translateUrl":"","linkName":"biib-2025331xex312.htm","type":"EX-31.2","id":"NTFILECwF7yMWL6aDtq6du","market":"us","size":10657},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-2025331xex321.htm","primary":false,"translateUrl":"","linkName":"biib-2025331xex321.htm","type":"EX-32.1","id":"NTFILECBsNeeuPDAy8cSsG","market":"us","size":9292},{"description":"null","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-20250331_g1.jpg","primary":false,"translateUrl":"","linkName":"biib-20250331_g1.jpg","type":"GRAPHIC","id":"NTFILE4CYZTcJynQ8wyLFj","market":"us","size":62626},{"description":"null","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-20250331_g2.jpg","primary":false,"translateUrl":"","linkName":"biib-20250331_g2.jpg","type":"GRAPHIC","id":"NTFILECTN9hj2WGK5Rg8Tw","market":"us","size":16040},{"description":"null","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-20250331_g3.jpg","primary":false,"translateUrl":"","linkName":"biib-20250331_g3.jpg","type":"GRAPHIC","id":"NTFILECvxSJGEfPqrfvuF4","market":"us","size":12078},{"description":"null","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-20250331_g4.jpg","primary":false,"translateUrl":"","linkName":"biib-20250331_g4.jpg","type":"GRAPHIC","id":"NTFILE2FJsHtU8jjTWh5W2","market":"us","size":15797},{"description":"null","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-20250331_g5.jpg","primary":false,"translateUrl":"","linkName":"biib-20250331_g5.jpg","type":"GRAPHIC","id":"NTFILEGMN9Lh7CSMQLE41C","market":"us","size":16000},{"description":"null","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-20250331_g6.jpg","primary":false,"translateUrl":"","linkName":"biib-20250331_g6.jpg","type":"GRAPHIC","id":"NTFILEL44ynEq3dKvm2ajq","market":"us","size":43706},{"description":"null","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-20250331_g7.jpg","primary":false,"translateUrl":"","linkName":"biib-20250331_g7.jpg","type":"GRAPHIC","id":"NTFILE5sXEYdnJvnoaTmfv","market":"us","size":69580},{"description":"null","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-20250331_g8.jpg","primary":false,"translateUrl":"","linkName":"biib-20250331_g8.jpg","type":"GRAPHIC","id":"NTFILEHACkmUY7wXixYNaR","market":"us","size":54763},{"description":"null","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000018/biib-20250331_g9.jpg","primary":false,"translateUrl":"","linkName":"biib-20250331_g9.jpg","type":"GRAPHIC","id":"NTFILE8BmAuXEcgnyyLWA6","market":"us","size":95228}],"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":"2025-05-01 12:00","pubTimestamp":1746072000,"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":"19589356","market":"us","labels":[],"media":"sec.gov","original_id":"AN87504525000014-BIIB","pdf_url":"","pub_time":1746072000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"BIIB","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000014/0000875045-25-000014-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\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/875045/000087504525000014/exhibit991-q12025pressrele.htm","primary":true,"translateUrl":"","linkName":"exhibit991-q12025pressrele.htm","type":"EX-99.1","id":"NTFILEHcdwFiNzx1eWU4QG","market":"us","size":396432},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000014/biib-20250501.htm","primary":false,"translateUrl":"","linkName":"biib-20250501.htm","type":"8-K","id":"NTFILEGEQyYjFWUfbqMGUQ","market":"us","size":24074},{"description":"null","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/875045/000087504525000014/newbiogenlogoa.jpg","primary":false,"translateUrl":"","linkName":"newbiogenlogoa.jpg","type":"GRAPHIC","id":"NTFILEFjp48vCmpmmjPuGu","market":"us","size":2811}],"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":"2025-05-01 12:00","pubTimestamp":1746072000,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":11,"pageCount":1,"totalSize":218,"code":"91000000","status":"200"}]}}