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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 2021

Institutional positions in Biogen Inc. as of Sep 30, 2021. 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
1,044
−50 vs. Q2 2021
Shares held
123.8M
−1.32M (−1.1%) vs. Q2 2021
Total value
$35.1B
−$8.22B (−19.0%) vs. Q2 2021
New holders
74
351 more added
Sold out
124
398 more reduced

13 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: 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 2021: 1,044 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 2021: $35.1B
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 2021

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q2 2021.

Institutions holding BIIB in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Plancorp, LLC1,605$454.0K0.03%−98−5.8%Reduced
Indie Asset Partners, LLC1,604$454.0K0.37%−25−1.5%Reduced
KB Financial Partners, LLC1,615$457.0K0.17%+153+10.5%Added
McGuire Investment Group, LLC1,645$466.0K0.09%−25−1.5%Reduced
GeoWealth Management, LLC1,656$470.0K0.04%+1,656New
AIA Group Ltd1,663$471.0K0.03%+614+58.5%Added
Atlas Capital Advisors LLC1,684$476.6K0.08%+1,684New
Hillsdale Investment Management Inc.1,690$478.0K0.04%+40+2.4%Added
Cornell Pochily Investment Advisors, Inc.1,704$482.0K0.21%00.0%Unchanged
Choate Investment Advisors1,706$482.0K0.03%+130+8.2%Added
Capital Wealth Planning, LLC1,733$490.0K0.01%+135+8.4%Added
Brookstone Capital Management1,749$496.0K0.01%+1,073+158.7%Added
Conning Inc.1,756$497.0K0.01%−1,043−37.3%Reduced
Icon Wealth Partners, LLC1,760$498.0K0.05%−233−11.7%Reduced
Orion Portfolio Solutions, LLC1,796$508.0K0.02%−1,300−42.0%Reduced
Wellington Shields Capital Management, LLC1,804$511.0K0.07%−1,500−45.4%Reduced
Seizert Capital Partners, LLC1,809$512.0K0.02%−64−3.4%Reduced
Heron Financial Group, LLC1,817$514.0K0.29%00.0%Unchanged
Eudaimonia Partners, LLC1,829$518.0K0.09%+430+30.7%Added
Intersect Capital LLC1,842$521.0K0.09%+3+0.2%Added
Avestar Capital, LLC1,898$537.0K0.10%+18+1.0%Added
ARS Wealth Advisors Group, LLC1,909$540.0K0.10%+1,909New
Steward Partners Investment Advisory, LLC1,928$546.0K0.01%−123−6.0%Reduced
Avidian Wealth Solutions, LLC1,948$551.0K0.04%+392+25.2%Added
Stratos Wealth Advisors, LLC1,996$565.0K0.05%+172+9.4%Added
DCF Advisers, LLC2,000$566.0K0.31%+1,000+100.0%Added
Intercontinental Wealth Advisors, LLC2,029$574.0K0.13%−226−10.0%Reduced
Johnson Investment Counsel Inc2,033$575.0K0.01%−30−1.5%Reduced
Empirical Finance, LLC2,038$577.0K0.09%−1,919−48.5%Reduced
Mitchell & Pahl Private Wealth, LLC2,050$580.0K0.42%−17−0.8%Reduced
Dynamic Technology Lab Private Ltd2,052$581.0K0.07%−1,931−48.5%Reduced
Forbes J M & Co LLP2,084$590.0K0.07%−32−1.5%Reduced
Beacon Pointe Advisors, LLC2,091$592.0K0.01%−655−23.9%Reduced
HBK Sorce Advisory LLC2,095$593.0K0.03%−18−0.9%Reduced
Ieq Capital, LLC2,100$593.0K0.02%+514+32.4%Added
Lumina Fund Management LLC2,100$594.0K0.28%00.0%Unchanged
Hennion & Walsh Asset Management, Inc.2,120$600.0K0.03%+103+5.1%Added
Heritage Wealth Advisors2,122$600.5K0.04%00.0%Unchanged
Capula Management Ltd2,127$602.0K0.05%+2,127New
Bessemer Group Inc2,138$606.0K0.00%−273−11.3%Reduced
Flputnam Investment Management Co2,141$606.0K0.02%00.0%Unchanged
First Hawaiian Bank2,174$615.0K0.03%00.0%Unchanged
Avantax Advisory Services, Inc.2,175$617.0K0.01%+648+42.4%Added
Parallel Advisors, LLC2,192$620.0K0.03%+22+1.0%Added
Ritholtz Wealth Management2,241$634.0K0.04%+2+0.1%Added
Donoghue Forlines LLC2,260$640.0K0.12%+2,260New
Los Angeles Capital Management LLC2,273$643.0K0.00%−1,820−44.5%Reduced
BI Asset Management Fondsmaeglerselskab A/S2,271$643.0K0.02%−862−27.5%Reduced
FORA Capital, LLC2,290$648.0K0.16%−7,599−76.8%Reduced
Dakota Wealth Management2,290$648.0K0.07%00.0%Unchanged
Absher Wealth Management, LLC2,304$652.0K0.12%+127+5.8%Added
Balasa Dinverno & Foltz LLC2,313$655.0K0.05%+3+0.1%Added
ETF Managers Group, LLC2,325$664.0K0.01%+178+8.3%Added
Vanguard Capital Wealth Advisors2,350$665.0K0.51%−350−13.0%Reduced
Trust Co of Vermont2,352$665.0K0.05%−89−3.6%Reduced
SeaCrest Wealth Management, LLC2,352$666.0K0.08%+58+2.5%Added
Signature Wealth Management Partners, LLC2,358$667.0K0.60%00.0%Unchanged
Pensionfund DSM Netherlands2,400$679.0K0.09%−9,600−80.0%Reduced
Oracle Investment Management Inc2,412$683.0K0.09%00.0%Unchanged
Wedbush Securities Inc2,414$683.0K0.03%+76+3.3%Added
Brewin Dolphin Ltd2,464$697.3K0.03%00.0%Unchanged
Signaturefd, LLC2,484$703.0K0.02%+79+3.3%Added
Benjamin F. Edwards & Company, Inc.2,492$705.0K0.04%+135+5.7%Added
BancorpSouth Bank2,493$705.0K0.10%+179+7.7%Added
Teza Capital Management LLC2,495$706.0K0.34%−4,922−66.4%Reduced
NJ State Employees Deferred Compensation Plan2,500$707.0K0.10%00.0%Unchanged
XTX Topco Ltd2,500$707.0K0.24%+2,500New
Legacy Wealth Asset Management, LLC2,501$708.0K0.32%+13+0.5%Added
Corient Capital Partners, LLC2,533$717.0K0.05%−411−14.0%Reduced
IndexIQ Advisors LLC2,588$732.0K0.02%+97+3.9%Added
Knowledge Leaders Capital, LLC2,604$737.0K0.59%+31+1.2%Added
Capital Investment Advisors, LLC2,616$740.0K0.02%−484−15.6%Reduced
Cullen/Frost Bankers, Inc.2,619$741.0K0.01%−161−5.8%Reduced
Eagle Global Advisors LLC2,625$743.0K0.05%00.0%Unchanged
Philadelphia Trust Co2,630$744.0K0.05%00.0%Unchanged
Baker Tilly Wealth Management, LLC2,633$745.0K0.10%+403+18.1%Added
Stoneridge Investment Partners LLC2,694$762.0K0.38%−1,140−29.7%Reduced
FineMark National Bank & Trust2,702$765.0K0.03%−41−1.5%Reduced
Brookfield Asset Management Inc.2,710$767.0K0.00%+825+43.8%Added
Engineers Gate Manager LP2,715$768.0K0.04%+55+2.1%Added
Bank Julius Baer & Co. Ltd, Zurich2,725$771.0K0.00%−1,979−42.1%Reduced
PAX Financial Group, LLC2,726$771.0K0.19%−7−0.3%Reduced
E Fund Management Co., Ltd.2,756$780.0K0.03%+2,756New
Allstate Corp2,778$786.0K0.03%−117−4.0%Reduced
Huntington National Bank2,779$787.0K0.01%−21−0.8%Reduced
Eqis Capital Management, Inc.2,796$791.0K0.06%−2,065−42.5%Reduced
Stevens Capital Management LP2,794$791.0K0.33%+2,794New
Symmetry Partners, LLC2,845$798.0K0.05%−371−11.5%Reduced
Meiji Yasuda Asset Management Co Ltd.2,823$799.0K0.06%−100−3.4%Reduced
Personal Cfo Solutions, LLC2,829$801.0K0.16%−22−0.8%Reduced
DuPont Capital Management Corp2,839$803.0K0.03%−2,130−42.9%Reduced
Sompo Asset Management Co., Ltd.2,870$812.0K0.19%−2,430−45.8%Reduced
Ropes Wealth Advisors LLC2,915$825.0K0.13%+15+0.5%Added
AtonRa Partners2,914$825.0K0.28%+281+10.7%Added
Hancock Whitney Corp2,925$828.0K0.03%−567−16.2%Reduced
Meiji Yasuda Life Insurance Co2,930$829.0K0.01%−190−6.1%Reduced
Ethic Inc.2,946$834.0K0.09%+747+34.0%Added
Apriem Advisors2,962$838.0K0.12%−21,791−88.0%Reduced
JustInvest LLC2,973$841.0K0.08%+339+12.9%Added
Verdence Capital Advisors LLC2,995$848.0K0.11%−24−0.8%Reduced