Skip to main content

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
Nomura Holdings Inc9,267$1.80M0.01%+9,267New
Mizuho Securities USA LLC9,445$1.83M0.04%−1,777−15.8%Reduced
International Assets Investment Management, LLC358,992$1.85M0.01%+357,181+19,722.9%Added
Private Advisor Group, LLC9,645$1.87M0.01%+924+10.6%Added
Commerce Bank9,915$1.92M0.01%+1,014+11.4%Added
Federation des caisses Desjardins du Quebec10,104$1.96M0.01%+998+11.0%Added
Panagora Asset Management Inc10,146$1.97M0.01%+610+6.4%Added
Kentucky Retirement Systems10,148$1.97M0.06%−824−7.5%Reduced
Guardian Investment Management10,165$1.97M1.71%00.0%Unchanged
MML Investors Services, LLC10,280$1.99M0.01%+380+3.8%Added
Two Sigma Securities, LLC10,659$2.07M0.16%+10,659New
Dai-Ichi Life Insurance Company, Ltd10,719$2.08M0.05%00.0%Unchanged
Inspire Trust Co, N.A.10,900$2.11M0.58%+4,025+58.5%Added
Teachers Retirement System of the State of Kentucky10,912$2.12M0.02%−620−5.4%Reduced
Seizert Capital Partners, LLC11,004$2.13M0.10%+3,418+45.1%Added
Pathstone Holdings, LLC11,024$2.14M0.01%−2,426−18.0%Reduced
Advisor Group Holdings, Inc.11,130$2.16M0.00%−2,435−18.0%Reduced
Vontobel Holding Ltd.11,153$2.16M0.01%−2,652−19.2%Reduced
TD Waterhouse Canada Inc.11,335$2.16M0.02%+2,094+22.7%Added
Edgestream Partners, L.P.11,218$2.17M0.10%+10,289+1,107.5%Added
JustInvest LLC11,299$2.19M0.04%−1,962−14.8%Reduced
HighTower Advisors, LLC11,432$2.20M0.00%−2,335−17.0%Reduced
North Growth Management Ltd.11,000$2.21M0.41%00.0%Unchanged
Gulf International Bank (UK) Ltd11,438$2.22M0.06%−511−4.3%Reduced
Evoke Wealth, LLC11,456$2.22M0.06%+7,916+223.6%Added
Cairn Investment Group, Inc.11,516$2.23M1.23%+366+3.3%Added
Rakuten Investment Management, Inc.11,566$2.25M0.01%+2,917+33.7%Added
Blair William & Co12,155$2.36M0.01%−939−7.2%Reduced
Oregon Public Employees Retirement Fund12,436$2.41M0.05%−60−0.5%Reduced
Leonteq Securities AG12,471$2.42M0.28%+12,471New
TownSquare Capital, LLC12,808$2.48M0.03%−941−6.8%Reduced
Cetera Investment Advisers12,869$2.49M0.01%−1,105−7.9%Reduced
Elo Mutual Pension Insurance Co12,884$2.50M0.05%−189−1.4%Reduced
Exome Asset Management LLC13,317$2.57M1.74%+13,317New
GTS Securities LLC13,294$2.58M0.05%−624−4.5%Reduced
Raymond James Financial Services Advisors, Inc.13,382$2.59M0.00%−1,742−11.5%Reduced
Old North State Wealth Management, LLC13,533$2.62M1.47%+100+0.7%Added
Janney Montgomery Scott LLC13,539$2.63M0.01%−1,387−9.3%Reduced
Creative Planning13,774$2.67M0.00%−4,500−24.6%Reduced
Alberta Investment Management Corp13,900$2.69M0.02%+13,900New
Leo Wealth, LLC13,939$2.70M0.25%−17−0.1%Reduced
Mackenzie Financial Corp14,087$2.73M0.00%−11,577−45.1%Reduced
Gabelli Funds LLC14,100$2.73M0.02%−300−2.1%Reduced
Parallax Volatility Advisers, L.P.14,388$2.79M0.07%+122+0.9%Added
Synovus Financial Corp14,462$2.80M0.03%+821+6.0%Added
iA Global Asset Management Inc.14,848$2.88M0.05%+545+3.8%Added
NEOS Investment Management LLC14,884$2.89M0.09%+1,893+14.6%Added
Oversea-Chinese Banking CORP Ltd15,742$3.05M0.09%+3,145+25.0%Added
Clark Estates Inc16,150$3.13M0.58%+16,150New
Auxier Asset Management16,182$3.14M0.46%−38−0.2%Reduced
M&T Bank Corp16,233$3.15M0.01%−863−5.0%Reduced
Groupama Asset Managment20,522$3.19M0.08%+7,812+61.5%Added
PDT Partners, LLC16,497$3.20M0.28%+9,997+153.8%Added
Meitav Dash Investments Ltd16,852$3.27M0.05%00.0%Unchanged
Campbell & CO Investment Adviser LLC16,919$3.28M0.24%+14,123+505.1%Added
Walleye Trading LLC17,102$3.32M0.08%+3,263+23.6%Added
FORA Capital, LLC17,700$3.43M0.40%+17,700New
Fort Washington Investment Advisors Inc17,814$3.45M0.02%00.0%Unchanged
Engineers Gate Manager LP17,992$3.49M0.07%+17,992New
Ilmarinen Mutual Pension Insurance Co18,000$3.49M0.04%00.0%Unchanged
Aviva PLC18,532$3.59M0.01%+258+1.4%Added
Bank of Nova Scotia18,637$3.61M0.01%+3,485+23.0%Added
Empowered Funds, LLC18,908$3.67M0.06%+15,506+455.8%Added
Arlington Partners LLC19,214$3.72M1.46%+4,902+34.3%Added
Louisiana State Employees Retirement System19,300$3.74M0.07%−500−2.5%Reduced
State of Tennessee, Treasury Department19,329$3.75M0.01%−41,870−68.4%Reduced
Capstone Investment Advisors, LLC19,446$3.77M0.07%+12,873+195.8%Added
Pacer Advisors, Inc.19,507$3.78M0.01%+441+2.3%Added
ING Groep NV19,650$3.81M0.02%−4,945−20.1%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd19,702$3.82M0.04%+489+2.5%Added
Silverarc Capital Management, LLC19,940$3.87M0.87%+575+3.0%Added
Mariner, LLC19,967$3.87M0.01%−3,147−13.6%Reduced
American Assets Investment Management, LLC20,000$3.88M0.34%00.0%Unchanged
Public Employees Retirement Association of Colorado20,082$3.89M0.02%+11+0.1%Added
US Bancorp20,214$3.92M0.01%−3,755−15.7%Reduced
Kinneret Advisory, LLC20,340$3.94M0.36%−266−1.3%Reduced
Mutual of America Capital Management LLC20,809$4.03M0.04%−3,174−13.2%Reduced
Xponance, Inc.21,025$4.08M0.04%−56−0.3%Reduced
APG Asset Management N.V.23,635$4.11M0.03%−105,941−81.8%Reduced
Shelton Capital Management21,201$4.11M0.11%−100−0.5%Reduced
Virtu Financial LLC21,207$4.11M0.23%+21,207New
Ostrum Asset Management21,904$4.25M0.35%+167+0.8%Added
Evergreen Capital Management LLC22,354$4.33M0.15%−1,470−6.2%Reduced
New York Life Investment Management LLC22,582$4.38M0.04%−385−1.7%Reduced
Connor, Clark & Lunn Investment Management Ltd.22,744$4.41M0.02%−65,758−74.3%Reduced
Diversified Trust Co22,783$4.42M0.11%−73−0.3%Reduced
CIBC World Markets Corp22,973$4.45M0.03%−6,275−21.5%Reduced
Janus Henderson Group PLC23,029$4.46M0.00%+1,900+9.0%Added
Bokf, NA24,209$4.47M0.08%−619−2.5%Reduced
Yousif Capital Management, LLC23,146$4.49M0.05%−118−0.5%Reduced
The PNC Financial Services Group, Inc.23,421$4.54M0.00%−1,173−4.8%Reduced
Beacon Investment Advisory Services, Inc.23,610$4.58M0.19%−1,051−4.3%Reduced
Lazard Asset Management LLC23,857$4.62M0.01%+3,721+18.5%Added
Ensign Peak Advisors, Inc24,111$4.67M0.01%−10,470−30.3%Reduced
Utah Retirement Systems24,115$4.67M0.05%+100+0.4%Added
British Columbia Investment Management Corp24,289$4.71M0.03%−3,549−12.7%Reduced
Sphera Funds Management Ltd.24,455$4.74M0.78%−22,957−48.4%Reduced
Natixis Advisors, L.P.24,757$4.80M0.01%−10,054−28.9%Reduced
State of Alaska, Department of Revenue24,870$4.82M0.05%−4,900−16.5%Reduced
Andra AP-fonden26,700$5.18M0.08%+2,300+9.4%Added