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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 2021

Institutional positions in Biogen Inc. as of Jun 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
1,107
+26 vs. Q1 2021
Shares held
126.1M
−1.15M (−0.9%) vs. Q1 2021
Total value
$43.6B
+$8.06B (+22.7%) vs. Q1 2021
New holders
136
325 more added
Sold out
110
469 more reduced

15 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2021: 1,107 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 2021: $43.6B
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, Q2 2021

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2021.

Institutions holding BIIB in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Boenning & Scattergood, Inc.860$298.0K0.05%−329−27.7%Reduced
Prospera Financial Services Inc861$298.0K0.01%−275−24.2%Reduced
Gratus Capital LLC862$298.0K0.03%−188−17.9%Reduced
WealthTrust Axiom LLC860$297.0K0.10%00.0%Unchanged
Key Financial Inc906$296.0K0.17%00.0%Unchanged
First Midwest Bank Trust Division845$293.0K0.04%−303−26.4%Reduced
BLB&B Advisors, LLC843$292.0K0.02%−1−0.1%Reduced
Central Trust Co839$291.0K0.01%−110−11.6%Reduced
Eastern Bank840$291.0K0.01%00.0%Unchanged
Beaumont Financial Partners, LLC841$291.0K0.02%+105+14.3%Added
Davy Global Fund Management Ltd838$290.0K0.04%−230−21.5%Reduced
Waters Parkerson & Co., LLC833$288.0K0.02%00.0%Unchanged
CWM, LLC820$284.0K0.00%00.0%Unchanged
Pin Oak Investment Advisors Inc820$284.0K0.29%00.0%Unchanged
Culbertson A N & Co Inc820$284.0K0.06%00.0%Unchanged
Meitav Dash Investments Ltd815$282.0K0.01%−800−49.5%Reduced
AE Wealth Management LLC808$280.0K0.00%−12,707−94.0%Reduced
AdvisorNet Financial, Inc810$280.0K0.02%−218−21.2%Reduced
Grandfield & Dodd, LLC823$280.0K0.02%00.0%Unchanged
Selective Wealth Management, Inc.808$280.0K0.22%+808New
LCM Capital Management Inc807$279.0K0.23%−12−1.5%Reduced
Capital Analysts, LLC801$277.0K0.02%00.0%Unchanged
Community Bank, N.A.800$277.0K0.03%00.0%Unchanged
Optas, LLC797$277.0K0.08%+1+0.1%Added
Newbridge Financial Services Group, Inc.796$276.0K0.17%00.0%Unchanged
Robinson Value Management, Ltd.793$275.0K0.22%−7,079−89.9%Reduced
First Long Island Investors, LLC793$275.0K0.02%00.0%Unchanged
Covenant Asset Management, LLC794$275.0K0.08%00.0%Unchanged
Abacus Planning Group, Inc.787$273.0K0.08%00.0%Unchanged
Miracle Mile Advisors, LLC786$272.0K0.01%−223−22.1%Reduced
Waterfront Wealth Inc.775$268.0K0.13%−7−0.9%Reduced
Harbour Investments, Inc.770$267.0K0.01%+27+3.6%Added
Independent Financial Group, LLC771$267.0K0.03%+771New
Canvas Wealth Advisors, LLC769$266.0K0.12%+769New
Compton Capital Management Inc765$265.0K0.08%00.0%Unchanged
Prio Wealth Limited Partnership764$265.0K0.01%+764New
Sage Rhino Capital LLC763$264.0K0.08%+12+1.6%Added
Twin Focus Capital Partners, LLC761$264.0K0.06%+17+2.3%Added
Keudell/Morrison Wealth Management753$261.0K0.14%+753New
Barrett Asset Management, LLC750$260.0K0.01%−98−11.6%Reduced
Colony Group LLC752$260.0K0.01%−85−10.2%Reduced
Lowe Brockenbrough & Co Inc750$260.0K0.02%00.0%Unchanged
McAdam, LLC784$258.0K0.03%−353−31.0%Reduced
Waldron Private Wealth LLC745$257.0K0.02%−1−0.1%Reduced
Arvest Bank Trust Division743$257.0K0.01%+743New
Associated Banc-Corp739$256.0K0.01%−387−34.4%Reduced
Ahrens Investment Partners LLC740$256.0K0.12%00.0%Unchanged
Euclidean Technologies Management, LLC739$256.0K0.20%+739New
Financial Counselors Inc736$255.0K0.01%−48−6.1%Reduced
DRW Securities, LLC730$253.0K0.03%−41−5.3%Reduced
Personal Capital Advisors Corp726$251.0K0.00%−16−2.2%Reduced
Marcum Wealth, LLC725$251.0K0.04%−18−2.4%Reduced
Integrated Advisors Network LLC721$250.0K0.02%+721New
Cohen Capital Management, Inc.720$249.0K0.04%00.0%Unchanged
Advisor Resource Council712$247.0K0.03%+712New
Sheaff Brock Investment Advisors, LLC710$246.0K0.02%−60−7.8%Reduced
McDonald Partners LLC707$245.0K0.06%−95−11.8%Reduced
Pinnacle Wealth Planning Services, Inc.708$245.0K0.06%−7−1.0%Reduced
Founders Financial Securities LLC707$245.0K0.05%+707New
Bluestein R H & Co705$244.0K0.01%+705New
Lido Advisors, LLC705$244.0K0.01%+705New
International Assets Investment Management, LLC4,676$238.0K0.04%+210+4.7%Added
Brookstone Capital Management676$238.0K0.00%+676New
Parametrica Management Ltd680$236.0K0.17%−6,672−90.8%Reduced
Excalibur Management Corp682$236.0K0.11%+682New
Meritage Portfolio Management677$234.0K0.01%+677New
Mitchell McLeod Pugh & Williams Inc675$234.0K0.09%+675New
Hunter Associates Investment Management LLC670$232.0K0.07%−90−11.8%Reduced
Manchester Capital Management LLC670$232.0K0.03%00.0%Unchanged
Maple Capital Management, Inc.670$229.0K0.03%+670New
Argent Trust Co660$228.0K0.01%+660New
Krilogy Financial LLC655$227.0K0.02%+655New
Mather Group, LLC.653$226.0K0.01%−82−11.2%Reduced
Thomasville National Bank650$225.0K0.02%−14,242−95.6%Reduced
Ingalls & Snyder LLC650$225.0K0.01%−70−9.7%Reduced
Fukoku Mutual Life Insurance Co650$225.0K0.02%00.0%Unchanged
Taylor, Cottrill, Erickson & Associates, Inc.650$225.0K0.03%+650New
Leavell Investment Management, Inc.800$224.0K0.02%00.0%Unchanged
JGP Global Gestao de Recursos Ltda.648$224.0K0.08%+648New
Financial Partners Capital Management LLC646$223.7K0.04%+646New
Sawtooth Solutions, LLC644$223.0K0.04%+644New
Focused Wealth Management, Inc640$222.0K0.04%+15+2.4%Added
RFG Advisory, LLC642$222.0K0.02%+642New
Camden Capital, LLC642$222.0K0.05%+642New
Mid Atlantic Financial Management Inc637$221.0K0.01%−216−25.3%Reduced
Moors & Cabot, Inc.635$220.0K0.02%−95−13.0%Reduced
V Wealth Advisors LLC636$220.0K0.04%+636New
Quadrant Capital Group LLC633$219.0K0.03%−156−19.8%Reduced
PFG Advisors631$218.0K0.02%−129−17.0%Reduced
Snowden Capital Advisors LLC623$215.7K0.01%−122−16.4%Reduced
Ade, LLC620$215.0K0.20%00.0%Unchanged
Infrastructure Capital Advisors, LLC621$215.0K0.05%+621New
GYL Financial Synergies, LLC620$215.0K0.11%+620New
Douglas Lane & Associates, LLC616$213.0K0.00%+616New
Essex Financial Services, Inc.613$212.0K0.03%+613New
Verition Fund Management LLC607$210.0K0.00%−270−30.8%Reduced
Quilter Plc607$210.0K0.01%+607New
Steel Peak Wealth Management LLC606$210.0K0.02%+606New
Denali Advisors LLC600$208.0K0.08%−2,100−77.8%Reduced
Providence Wealth Advisors, LLC600$208.0K0.14%+600New