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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, Q3 2024

Institutional positions in Biogen Inc. as of Sep 30, 2024. 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
921
−17 vs. Q2 2024
Shares held
129.8M
+15.4M (+13.4%) vs. Q2 2024
Total value
$25.1B
−$1.44B (−5.4%) vs. Q2 2024
New holders
101
269 more added
Sold out
118
378 more reduced

9 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 holdersQ3 2024: 921 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 heldQ3 2024: $25.1B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q2 2024.

Institutions holding BIIB in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
JustInvest LLC11,299$2.19M0.04%−1,962−14.8%Reduced
Edgestream Partners, L.P.11,218$2.17M0.10%+10,289+1,107.5%Added
TD Waterhouse Canada Inc.11,335$2.16M0.02%+2,094+22.7%Added
Vontobel Holding Ltd.11,153$2.16M0.01%−2,652−19.2%Reduced
Advisor Group Holdings, Inc.11,130$2.16M0.00%−2,435−18.0%Reduced
Pathstone Holdings, LLC11,024$2.14M0.01%−2,426−18.0%Reduced
Seizert Capital Partners, LLC11,004$2.13M0.10%+3,418+45.1%Added
Teachers Retirement System of the State of Kentucky10,912$2.12M0.02%−620−5.4%Reduced
Inspire Trust Co, N.A.10,900$2.11M0.58%+4,025+58.5%Added
Dai-Ichi Life Insurance Company, Ltd10,719$2.08M0.05%00.0%Unchanged
Two Sigma Securities, LLC10,659$2.07M0.16%+10,659New
MML Investors Services, LLC10,280$1.99M0.01%+380+3.8%Added
Guardian Investment Management10,165$1.97M1.71%00.0%Unchanged
Kentucky Retirement Systems10,148$1.97M0.06%−824−7.5%Reduced
Panagora Asset Management Inc10,146$1.97M0.01%+610+6.4%Added
Federation des caisses Desjardins du Quebec10,104$1.96M0.01%+998+11.0%Added
Commerce Bank9,915$1.92M0.01%+1,014+11.4%Added
Private Advisor Group, LLC9,645$1.87M0.01%+924+10.6%Added
International Assets Investment Management, LLC358,992$1.85M0.01%+357,181+19,722.9%Added
Mizuho Securities USA LLC9,445$1.83M0.04%−1,777−15.8%Reduced
Nomura Holdings Inc9,267$1.80M0.01%+9,267New
Level Four Advisory Services, LLC10,297$1.79M0.08%−125−1.2%Reduced
Dohj, LLC9,490$1.79M0.42%+1,558+19.6%Added
Hartford Investment Management Co9,132$1.77M0.06%−176−1.9%Reduced
Money Concepts Capital Corp9,115$1.77M0.13%+231+2.6%Added
Toroso Investments, LLC9,012$1.75M0.02%+1,082+13.6%Added
Thor Investment Management Inc8,710$1.69M1.23%+673+8.4%Added
Court Place Advisors, LLC8,601$1.67M0.49%−572−6.2%Reduced
M&G Plc8,593$1.67M0.01%00.0%Unchanged
Swiss Life Asset Management Ltd8,590$1.66M0.02%−2,455−22.2%Reduced
First Foundation Advisors8,552$1.66M0.06%+8,552New
Twin Capital Management Inc8,450$1.64M0.18%−68−0.8%Reduced
Metis Global Partners, LLC8,374$1.62M0.05%+371+4.6%Added
Maryland State Retirement & Pension System8,304$1.61M0.03%−2,907−25.9%Reduced
Independent Advisor Alliance8,289$1.61M0.06%−1,843−18.2%Reduced
Wolverine Trading, LLC8,121$1.58M0.04%−2,314−22.2%Reduced
LMR Partners LLP8,121$1.57M0.03%+1,661+25.7%Added
E Fund Management Co., Ltd.8,061$1.56M0.08%+994+14.1%Added
Securian Asset Management, Inc7,996$1.55M0.04%−300−3.6%Reduced
Ethic Inc.7,169$1.55M0.04%−691−8.8%Reduced
Fox Run Management, L.L.C.7,922$1.54M0.34%+7,922New
Whittier Trust Co of Nevada Inc7,909$1.53M0.04%−67−0.8%Reduced
Cerity Partners LLC7,785$1.51M0.00%+2,030+35.3%Added
Keybank National Association7,739$1.50M0.01%−182−2.3%Reduced
Farther Finance Advisors, LLC7,656$1.48M0.06%+160+2.1%Added
Linden Thomas Advisory Services, LLC7,482$1.45M0.20%−4−0.1%Reduced
Northwest & Ethical Investments L.P.7,428$1.44M0.04%−1,139−13.3%Reduced
B. Metzler seel. Sohn & Co. AG7,361$1.43M0.01%+1,500+25.6%Added
B. Metzler seel. Sohn & Co. Holding AG7,361$1.43M0.01%+7,361New
Norinchukin Bank, The7,321$1.42M0.03%+1,023+16.2%Added
Schonfeld Strategic Advisors LLC7,211$1.40M0.01%+341+5.0%Added
Y-Intercept (Hong Kong) Ltd7,178$1.39M0.09%+4,238+144.1%Added
BI Asset Management Fondsmaeglerselskab A/S7,171$1.39M0.02%+1,277+21.7%Added
Oddo BHF Asset Management SAS7,136$1.38M0.07%+7,136New
New Mexico Educational Retirement Board7,124$1.38M0.05%−200−2.7%Reduced
Cornercap Investment Counsel Inc7,065$1.37M0.41%+7,065New
Crossmark Global Holdings, Inc.7,057$1.37M0.02%−394−5.3%Reduced
XTX Topco Ltd6,955$1.35M0.10%+6,955New
Cresset Asset Management, LLC6,874$1.33M0.01%−3,274−32.3%Reduced
Mogy Joel R Investment Counsel Inc6,860$1.33M0.08%00.0%Unchanged
Crestline Management, LP6,750$1.31M0.07%+6,750New
Harvest Fund Management Co., Ltd6,710$1.30M0.08%+2,304+52.3%Added
Advisors Asset Management, Inc.6,696$1.30M0.02%+147+2.2%Added
Inceptionr LLC6,694$1.30M0.32%+3,142+88.5%Added
Northwestern Mutual Wealth Management Co6,669$1.29M0.00%−640−8.8%Reduced
Allspring Global Investments Holdings, LLC6,660$1.29M0.00%−859−11.4%Reduced
PKO Investment Management Joint-Stock Co6,500$1.26M0.16%+3,000+85.7%Added
Captrust Financial Advisors6,494$1.26M0.00%−815−11.2%Reduced
Public Sector Pension Investment Board6,361$1.23M0.01%+700+12.4%Added
Centiva Capital, LP6,345$1.23M0.06%+4,108+183.6%Added
Hussman Strategic Advisors, Inc.6,300$1.22M0.30%00.0%Unchanged
AXS Investments LLC6,185$1.20M0.32%+6,185New
Loring Wolcott & Coolidge Fiduciary Advisors LLP6,479$1.19M0.01%−26−0.4%Reduced
Brinker Capital Investments, LLC6,092$1.18M0.01%−1,237−16.9%Reduced
Orion Portfolio Solutions, LLC6,092$1.18M0.01%−1,237−16.9%Reduced
Pinnacle Associates Ltd4,557$1.18M0.02%−73−1.6%Reduced
Oppenheimer & Co Inc6,050$1.17M0.02%−1,526−20.1%Reduced
Sectoral Asset Management Inc6,027$1.17M0.69%−110−1.8%Reduced
Premier Path Wealth Partners, LLC6,008$1.16M0.18%+341+6.0%Added
Tower Research Capital LLC (TRC)5,956$1.15M0.03%−9,512−61.5%Reduced
Ameritas Investment Partners, Inc.5,915$1.15M0.04%+155+2.7%Added
Ci Investments Inc.5,854$1.14M0.00%−389−6.2%Reduced
Motley Fool Asset Management LLC5,861$1.12M0.07%+204+3.6%Added
Pensionmark Financial Group, LLC5,766$1.12M0.04%+5,766New
ISAM Funds (UK) Ltd5,756$1.12M0.63%+5,756New
Gifford Fong Associates5,750$1.11M0.28%00.0%Unchanged
North Star Investment Management Corp.5,622$1.09M0.08%−12−0.2%Reduced
Mercer Global Advisors Inc5,696$1.09M0.00%−630−10.0%Reduced
E. Ohman J:or Asset Management AB5,599$1.09M0.03%−500−8.2%Reduced
Sterling Capital Management LLC5,565$1.08M0.01%+5,565New
Hennion & Walsh Asset Management, Inc.5,513$1.07M0.05%−1,277−18.8%Reduced
Stephens Inc5,415$1.05M0.01%−2,028−27.2%Reduced
Tobam5,345$1.04M0.19%00.0%Unchanged
Banque Cantonale Vaudoise5,259$1.02M0.04%−2,059−28.1%Reduced
Machina Capital S.A.S.5,144$997.1K0.40%+5,144New
Prime Capital Investment Advisors, LLC5,079$984.5K0.01%−5,201−50.6%Reduced
Unison Advisors LLC5,078$984.3K0.12%00.0%Unchanged
Empirical Finance, LLC5,070$982.8K0.06%+101+2.0%Added
Spears Abacus Advisors LLC5,055$979.9K0.02%00.0%Unchanged
Omers Administration Corp5,029$974.8K0.01%00.0%Unchanged