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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, Q2 2023

Institutional positions in Biogen Inc. as of Jun 30, 2023. 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
1,009
+11 vs. Q1 2023
Shares held
126.8M
−1.09M (−0.9%) vs. Q1 2023
Total value
$36.1B
+$1.11B (+3.2%) vs. Q1 2023
New holders
96
322 more added
Sold out
85
363 more reduced

6 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2023: 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 holdersQ2 2023: 1,009 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 heldQ2 2023: $36.1B
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, Q2 2023

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2023.

Institutions holding BIIB in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Gabelli Funds LLC14,550$4.14M0.03%−200−1.4%Reduced
Brookstone Capital Management14,994$4.12M0.08%+3,411+29.4%Added
Sectoral Asset Management Inc14,066$4.01M0.67%+1,064+8.2%Added
Public Sector Pension Investment Board13,860$3.95M0.03%−1,984−12.5%Reduced
Eisler Capital (UK) Ltd.13,679$3.90M0.42%+13,679New
Profund Advisors LLC13,457$3.83M0.21%+447+3.4%Added
Fiera Capital Corp13,268$3.78M0.01%+3,618+37.5%Added
Bank of Nova Scotia13,058$3.72M0.01%+1,742+15.4%Added
British Columbia Investment Management Corp13,029$3.71M0.03%+139+1.1%Added
Teachers Retirement System of the State of Kentucky13,008$3.71M0.04%−528−3.9%Reduced
Kinneret Advisory, LLC12,850$3.66M0.43%00.0%Unchanged
Tocqueville Asset Management L.P.12,250$3.49M0.06%+14+0.1%Added
Meeder Asset Management Inc12,210$3.48M0.25%+8,663+244.2%Added
Hartford Investment Management Co12,193$3.47M0.13%−2,029−14.3%Reduced
Securian Asset Management, Inc12,093$3.44M0.09%00.0%Unchanged
Agf Management Ltd12,076$3.44M0.02%−651−5.1%Reduced
Elo Mutual Pension Insurance Co11,890$3.39M0.10%+447+3.9%Added
North Growth Management Ltd.12,000$3.32M0.68%00.0%Unchanged
Kentucky Retirement Systems11,638$3.31M0.11%+252+2.2%Added
Gifford Fong Associates11,500$3.28M0.77%00.0%Unchanged
JustInvest LLC11,350$3.23M0.10%+1,236+12.2%Added
Ostrum Asset Management11,142$3.17M0.27%+720+6.9%Added
Captrust Financial Advisors11,091$3.16M0.01%+2,538+29.7%Added
GTS Securities LLC11,088$3.16M0.10%+11,088New
Keybank National Association11,048$3.15M0.01%+118+1.1%Added
Maryland State Retirement & Pension System11,001$3.13M0.07%−317−2.8%Reduced
International Biotechnology Trust PLC11,000$3.13M0.95%−10,400−48.6%Reduced
MML Investors Services, LLC10,952$3.12M0.02%+4,118+60.3%Added
Court Place Advisors, LLC10,746$3.06M1.07%−360−3.2%Reduced
Ontario Teachers Pension Plan Board10,719$3.05M0.03%+7,717+257.1%Added
TKG Advisors, LLC10,717$3.05M1.98%−179−1.6%Reduced
Blair William & Co10,555$3.01M0.01%−357−3.3%Reduced
Wealthfront Advisers LLC10,541$3.00M0.01%+205+2.0%Added
Old North State Wealth Management, LLC10,274$2.93M2.56%+551+5.7%Added
Cairn Investment Group, Inc.10,181$2.90M1.88%+361+3.7%Added
Guardian Investment Management10,065$2.87M2.47%−700−6.5%Reduced
Sivik Global Healthcare LLC10,000$2.85M1.14%00.0%Unchanged
Lifeworks Advisors, LLC9,917$2.82M1.20%+7,456+303.0%Added
Lincoln National Corp9,819$2.80M0.06%−324−3.2%Reduced
Virtu Financial LLC9,785$2.79M0.21%+9,785New
Twin Capital Management Inc9,663$2.75M0.36%−359−3.6%Reduced
Oversea-Chinese Banking CORP Ltd9,650$2.75M0.13%00.0%Unchanged
Synovus Financial Corp9,477$2.70M0.03%+241+2.6%Added
Oppenheimer & Co Inc9,430$2.69M0.05%−823−8.0%Reduced
Commerce Bank9,400$2.68M0.02%+118+1.3%Added
Northwestern Mutual Wealth Management Co9,102$2.59M0.00%+2,373+35.3%Added
Money Concepts Capital Corp9,073$2.58M0.26%+272+3.1%Added
Segall Bryant & Hamill, LLC9,051$2.58M0.03%−214−2.3%Reduced
iA Global Asset Management Inc.8,926$2.54M0.07%+8,926New
BFT Financial Group, LLC8,801$2.51M0.29%−2,589−22.7%Reduced
Whittier Trust Co of Nevada Inc8,731$2.49M0.08%00.0%Unchanged
M&G Investment Management Ltd8,593$2.45M0.01%−387−4.3%Reduced
L2 Asset Management, LLC8,522$2.43M1.19%+8,522New
USA Financial Portformulas Corp8,508$2.42M3.72%−3,977−31.9%Reduced
Aquatic Capital Management LLC8,400$2.39M0.13%+8,400New
Caisse de Depot Et Placement du Quebec8,185$2.33M0.01%+8,185New
Mengis Capital Management, Inc.8,105$2.31M0.46%00.0%Unchanged
Rockefeller Capital Management L.P.8,019$2.28M0.01%−2,337−22.6%Reduced
Vestmark Advisory Solutions, Inc.7,794$2.22M0.08%+152+2.0%Added
BI Asset Management Fondsmaeglerselskab A/S7,737$2.20M0.05%+1,658+27.3%Added
Ramsay, Stattman, Vela & Price, Inc.7,620$2.17M0.44%00.0%Unchanged
Pinebridge Investments, L.P.7,612$2.17M0.02%+3,918+106.1%Added
Toroso Investments, LLC7,431$2.12M0.06%−1,639−18.1%Reduced
Independent Advisor Alliance7,323$2.09M0.09%+25+0.3%Added
Level Four Advisory Services, LLC7,086$2.02M0.12%+35+0.5%Added
New Mexico Educational Retirement Board7,024$2.00M0.09%+400+6.0%Added
Fairfield, Bush & Co.7,000$1.99M0.55%00.0%Unchanged
Prospera Financial Services Inc6,964$1.98M0.08%+678+10.8%Added
Mogy Joel R Investment Counsel Inc6,960$1.98M0.16%00.0%Unchanged
Metis Global Partners, LLC6,928$1.97M0.11%−87−1.2%Reduced
E. Ohman J:or Asset Management AB6,899$1.97M0.07%+600+9.5%Added
Easterly Investment Partners LLC6,889$1.96M0.18%00.0%Unchanged
Walleye Trading LLC6,800$1.94M0.10%−11,404−62.6%Reduced
G&S Capital LLC6,800$1.94M0.93%−107−1.5%Reduced
Cresset Asset Management, LLC6,751$1.92M0.01%+5,401+400.1%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP6,709$1.91M0.02%−175−2.5%Reduced
Siemens Fonds Invest GmbH6,727$1.91M0.19%00.0%Unchanged
B. Metzler seel. Sohn & Co. AG6,688$1.91M0.03%+38+0.6%Added
Banque Cantonale Vaudoise6,472$1.84M0.09%+336+5.5%Added
Metropolitan Life Insurance Co6,308$1.80M0.09%−133−2.1%Reduced
Hussman Strategic Advisors, Inc.6,300$1.79M0.33%+6,300New
Copperwynd Financial, LLC6,250$1.78M0.83%+6,250New
Oak Associates, Ltd6,190$1.76M0.14%00.0%Unchanged
Prelude Capital Management, LLC6,012$1.71M0.14%−5,310−46.9%Reduced
Waycross Partners, LLC6,000$1.71M0.37%00.0%Unchanged
Brown Brothers Harriman & Co5,967$1.70M0.01%−803−11.9%Reduced
FORA Capital, LLC5,903$1.68M0.24%+5,903New
Advisors Asset Management, Inc.5,886$1.68M0.03%+572+10.8%Added
Ethic Inc.5,840$1.66M0.06%−517−8.1%Reduced
La Banque Postale Asset Management SA5,764$1.64M0.04%−2,618−31.2%Reduced
Cetera Advisor Networks LLC5,716$1.63M0.01%+438+8.3%Added
Meridian Wealth Management, LLC5,708$1.63M0.14%+20.0%Added
North Star Investment Management Corp.5,659$1.61M0.13%00.0%Unchanged
Wolverine Trading, LLC5,707$1.61M0.02%+4,578+405.5%Added
Advisor Partners II, LLC5,602$1.60M0.07%+1,624+40.8%Added
Intellectus Partners, LLC5,600$1.60M0.48%−185−3.2%Reduced
Vident Investment Advisory, LLC5,594$1.59M0.05%−7,997−58.8%Reduced
Squarepoint Ops LLC5,547$1.58M0.01%+5,547New
Bessemer Group Inc5,399$1.54M0.00%+1,064+24.5%Added
CAPROCK Group, Inc.5,362$1.53M0.11%+95+1.8%Added