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Biogen Inc.

BIIB
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0000875045

In the last 90 days, Biogen Inc. insiders filed 0 open-market purchases and 1 sale; 1,047 institutions reported holding it in 13F filings for Q2 2026, worth $30.7B in total; no superinvestor holds it.

13F holders, Q4 2022

Institutional positions in Biogen Inc. as of Dec 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,033
+64 vs. Q3 2022
Shares held
124.9M
+1.29M (+1.0%) vs. Q3 2022
Total value
$34.6B
+$1.61B (+4.9%) vs. Q3 2022
New holders
160
326 more added
Sold out
96
361 more reduced

18 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2022: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting BIIB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2022: 1,033 institutions
Q1 2021: 1,096 institutionsQ2 2021: 1,107 institutionsQ3 2021: 1,044 institutionsQ4 2021: 1,014 institutionsQ1 2022: 954 institutionsQ2 2022: 930 institutionsQ3 2022: 987 institutionsQ4 2022: 1,033 institutionsQ1 2023: 1,004 institutionsQ2 2023: 1,009 institutionsQ3 2023: 966 institutionsQ4 2023: 1,005 institutionsQ1 2024: 955 institutionsQ2 2024: 947 institutionsQ3 2024: 921 institutionsQ4 2024: 879 institutionsQ1 2025: 882 institutionsQ2 2025: 867 institutionsQ3 2025: 909 institutionsQ4 2025: 1,002 institutionsQ1 2026: 1,015 institutionsQ2 2026: 1,047 institutions
Value heldQ4 2022: $34.6B
Q1 2021: $35.7BQ2 2021: $43.6BQ3 2021: $35.1BQ4 2021: $29.7BQ1 2022: $25.9BQ2 2022: $25.0BQ3 2022: $33.0BQ4 2022: $34.6BQ1 2023: $35.0BQ2 2023: $36.1BQ3 2023: $32.2BQ4 2023: $33.3BQ1 2024: $28.0BQ2 2024: $29.9BQ3 2024: $25.1BQ4 2024: $20.2BQ1 2025: $17.7BQ2 2025: $16.3BQ3 2025: $18.4BQ4 2025: $24.6BQ1 2026: $24.7BQ2 2026: $30.7B
Institutions holding BIIB and their total value by quarter
QuarterHoldersValue
Q2 20261,047$30.7B
Q1 20261,015$24.7B
Q4 20251,002$24.6B
Q3 2025909$18.4B
Q2 2025867$16.3B
Q1 2025882$17.7B
Q4 2024879$20.2B
Q3 2024921$25.1B
Q2 2024947$29.9B
Q1 2024955$28.0B
Q4 20231,005$33.3B
Q3 2023966$32.2B
Q2 20231,009$36.1B
Q1 20231,004$35.0B
Q4 20221,033$34.6B
Q3 2022987$33.0B
Q2 2022930$25.0B
Q1 2022954$25.9B
Q4 20211,014$29.7B
Q3 20211,044$35.1B
Q2 20211,107$43.6B
Q1 20211,096$35.7B

Institutions, Q4 2022

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q3 2022.

Institutions holding BIIB in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Prudential Financial Inc126,608$35.1M0.06%+122+0.1%Added
Manufacturers Life Insurance Company, The128,713$35.6M0.02%−32,808−20.3%Reduced
Fisher Asset Management, LLC132,495$36.7M0.02%+2,034+1.6%Added
HRT Financial LP133,064$36.8M0.52%+97,102+270.0%Added
Wedge Capital Management L L P134,427$37.2M0.60%+134,427New
Grantham, Mayo, Van Otterloo & Co. LLC135,102$37.4M0.20%−5,698−4.0%Reduced
Toronto Dominion Bank136,113$37.7M0.06%+56,845+71.7%Added
STRS Ohio136,550$37.8M0.17%+136,550New
Eversept Partners, LP137,348$38.0M3.62%+77,204+128.4%Added
Squarepoint Ops LLC138,293$38.3M0.28%−25,482−15.6%Reduced
Banco Bilbao Vizcaya Argentaria, S.A.139,048$38.5M0.56%+22,727+19.5%Added
Royal London Asset Management Ltd140,818$39.0M0.17%−14,693−9.4%Reduced
ProShare Advisors LLC141,574$39.2M0.14%−14,664−9.4%Reduced
Great West Life Assurance Co141,665$39.4M0.10%−8,120−5.4%Reduced
Natixis145,264$40.2M0.24%+53,173+57.7%Added
Retirement Systems of Alabama146,132$40.5M0.18%+97,932+203.2%Added
Putnam Investments LLC147,054$40.7M0.07%+98,843+205.0%Added
Massachusetts Financial Services Co147,549$40.9M0.01%−80,471−35.3%Reduced
DekaBank Deutsche Girozentrale150,360$41.2M0.11%−2,464−1.6%Reduced
Brown Advisory Inc149,631$41.4M0.08%+24,231+19.3%Added
Polar Capital Holdings Plc150,000$41.5M0.33%−100,000−40.0%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)150,037$41.5M0.22%+47,302+46.0%Added
Intech Investment Management LLC151,683$42.0M0.31%−22,162−12.7%Reduced
PFM Health Sciences, LP155,659$43.1M1.82%+16,333+11.7%Added
Victory Capital Management Inc155,863$43.2M0.05%−7,682−4.7%Reduced
Mitsubishi UFJ Trust & Banking Corp156,575$43.4M0.11%−13,721−8.1%Reduced
Canada Pension Plan Investment Board157,395$43.6M0.08%−62,860−28.5%Reduced
TD Asset Management Inc159,719$44.2M0.05%−4,732−2.9%Reduced
New York State Teachers Retirement System163,698$45.3M0.11%+801+0.5%Added
New York State Common Retirement Fund164,038$45.4M0.06%−176−0.1%Reduced
APG Asset Management N.V.165,121$45.7M0.09%+110,772+203.8%Added
Principal Financial Group Inc172,887$47.9M0.04%−7,845−4.3%Reduced
Railway Pension Investments Ltd174,022$48.2M0.48%+6,100+3.6%Added
Krensavage Asset Management, LLC177,004$49.0M15.15%−7,644−4.1%Reduced
State Board of Administration of Florida Retirement System182,116$50.4M0.12%+550+0.3%Added
Saratoga Research & Investment Management184,049$51.0M2.52%−47,356−20.5%Reduced
Korea Investment CORP185,038$51.2M0.16%−84,501−31.4%Reduced
Mirae Asset Global Investments Co., Ltd.189,491$52.5M0.14%+7,932+4.4%Added
Voloridge Investment Management, LLC191,306$53.0M0.30%+160,124+513.5%Added
United Capital Financial Advisers, LLC191,938$53.2M0.30%−9,592−4.8%Reduced
Tekla Capital Management LLC195,430$54.1M2.04%+49,991+34.4%Added
AQR Capital Management LLC197,818$54.4M0.12%−56,640−22.3%Reduced
Citigroup Inc196,826$54.5M0.08%−58,384−22.9%Reduced
National Pension Service199,525$55.3M0.11%−6,127−3.0%Reduced
Los Angeles Capital Management LLC201,076$55.7M0.27%+48,908+32.1%Added
Jane Street Group, LLC207,581$57.5M0.11%−96,959−31.8%Reduced
Two Sigma Investments, LP213,939$59.2M0.19%+63,121+41.9%Added
Susquehanna International Group, LLP216,737$60.0M0.12%+50,500+30.4%Added
Epoch Investment Partners, Inc.221,601$61.4M0.37%+7,803+3.6%Added
Adage Capital Partners GP, L.L.C.222,599$61.6M0.15%−25,200−10.2%Reduced
Qube Research & Technologies Ltd228,626$63.3M0.38%+228,626New
Ensign Peak Advisors, Inc229,810$63.6M0.14%+157,068+215.9%Added
Erste Asset Management GmbH236,447$65.4M1.38%+20,387+9.4%Added
Paradigm Biocapital Advisors LP238,772$66.1M7.76%+84,167+54.4%Added
Alliancebernstein L.P.242,978$67.3M0.03%+10,599+4.6%Added
Citadel Advisors LLC247,812$68.6M0.08%−1,566−0.6%Reduced
California State Teachers Retirement System251,522$69.7M0.11%+1,384+0.6%Added
Braidwell LP252,542$69.9M2.34%+252,542New
OrbiMed Advisors LLC258,200$71.5M1.37%+33,600+15.0%Added
Lord, Abbett & Co. LLC264,315$73.2M0.26%+249,884+1,731.6%Added
Wells Fargo & Company266,108$73.7M0.02%−52,870−16.6%Reduced
Samlyn Capital, LLC266,963$73.9M1.45%+130,558+95.7%Added
BNP Paribas Arbitrage, SA274,363$76.0M0.19%+53,760+24.4%Added
First Trust Advisors LP275,283$76.2M0.09%−113,693−29.2%Reduced
Russell Investments Group, Ltd.276,689$76.6M0.16%−60,565−18.0%Reduced
Rhumbline Advisers278,605$77.2M0.10%+5,359+2.0%Added
HSBC Holdings PLC281,938$77.6M0.10%+111,755+65.7%Added
Envestnet Asset Management Inc293,463$81.3M0.04%−12,184−4.0%Reduced
UBS Group AG294,275$81.5M0.04%+147,458+100.4%Added
Candriam Luxembourg S.C.A.297,813$82.5M0.56%+46,654+18.6%Added
Thrivent Financial for Lutherans298,608$82.7M0.21%−10,214−3.3%Reduced
Deep Track Capital, LP300,000$83.1M3.62%+300,000New
Neuberger Berman Group LLC301,531$83.5M0.08%−103,962−25.6%Reduced
Parnassus Investments305,808$84.7M0.21%−41,943−12.1%Reduced
Robeco Institutional Asset Management B.V.313,157$86.7M0.25%+5,341+1.7%Added
Fred Alger Management, LLC332,065$92.0M0.50%+188,033+130.5%Added
Millennium Management LLC338,585$93.8M0.10%−574,120−62.9%Reduced
Bank of Montreal323,807$94.7M0.07%+44,533+15.9%Added
Employees Provident Fund Board345,000$95.5M2.76%−47,680−12.1%Reduced
LSV Asset Management358,854$99.4M0.22%−10,268−2.8%Reduced
Credit Suisse AG360,356$99.8M0.11%+61,320+20.5%Added
California Public Employees Retirement System371,892$103.0M0.09%−14,101−3.7%Reduced
Palo Alto Investors LP380,082$105.3M8.97%+19,101+5.3%Added
American Century Companies Inc383,614$106.2M0.09%+91,793+31.5%Added
Royal Bank of Canada383,806$106.3M0.03%+131,377+52.0%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.385,410$106.7M0.38%+38,818+11.2%Added
AXA S.A.386,696$107.1M0.39%+136,991+54.9%Added
Armistice Capital, LLC400,000$110.8M2.98%+176,000+78.6%Added
Nordea Investment Management AB423,965$116.5M0.18%+8,925+2.2%Added
Franklin Resources Inc422,084$116.9M0.06%+12,842+3.1%Added
Arrowstreet Capital, Limited Partnership446,799$123.7M0.17%−183,697−29.1%Reduced
Bank of America Corp496,337$137.4M0.02%−72,464−12.7%Reduced
Sumitomo Mitsui Trust Holdings, Inc.519,795$143.9M0.11%−49,590−8.7%Reduced
Assenagon Asset Management S.A.531,412$147.2M0.61%−71,804−11.9%Reduced
Ra Capital Management, L.P.532,892$147.6M2.99%−404,657−43.2%Reduced
Nuveen Asset Management, LLC551,985$152.9M0.06%−20,703−3.6%Reduced
Allianz Asset Management GmbH581,634$161.1M0.36%+16,703+3.0%Added
Swiss National Bank589,800$163.3M0.12%−44,972−7.1%Reduced
Farallon Capital Management, L.L.C.592,699$164.1M1.06%+287,200+94.0%Added
Barclays PLC622,728$172.4M0.15%+286,871+85.4%Added