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Biogen (BIIB) Institutional Ownership

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$127.75 -1.59 (-1.23%)
Closing price 04:00 PM Eastern
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$130.00 +2.26 (+1.77%)
As of 07:53 PM Eastern
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Institutional Ownership Changes (13F Filings) for Biogen (NASDAQ:BIIB)

Current
Institutional Ownership
Percentage
87.93%
Number of
Institutional Buyers
(last 12 months)
571
Total
Institutional Inflows
(last 12 months)
$3.79B
Number of
Institutional Sellers
(last 12 months)
393
Total
Institutional Outflows
(last 12 months)
$2.51B
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BIIB Institutional Buying and Selling by Quarter

Biogen Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/7/2025Vise Technologies Inc.3,170$398K0.0%N/A0.002%
8/7/2025Allworth Financial LP2,179$274K0.0%+114.3%0.001%
8/7/2025Illinois Municipal Retirement Fund106,921$13.43M0.2%+66.7%0.073%
8/7/2025ProShare Advisors LLC238,558$29.96M0.1%+6.2%0.163%
8/7/2025Profund Advisors LLC27,174$3.41M0.1%+1.5%0.019%
8/7/2025Roberts Glore & Co. Inc. IL4,344$546K0.2%+4.3%0.003%
8/7/2025Acadian Asset Management LLC199,462$25.04M0.1%+1,036.1%0.136%
8/7/2025CSM Advisors LLC27,459$3.45M0.1%-1.4%0.019%
8/7/2025Campbell & CO Investment Adviser LLC6,760$849K0.1%-41.6%0.005%
8/7/2025Connor Clark & Lunn Investment Management Ltd.217,738$27.35M0.1%-21.6%0.149%
8/7/2025Mitsubishi UFJ Asset Management Co. Ltd.294,269$36.96M0.0%+7.6%0.201%
8/7/2025Parkside Financial Bank & Trust1,647$207K0.0%+15.1%0.001%
8/7/2025Aviva PLC108,674$13.65M0.0%+6.8%0.074%
8/7/2025Los Angeles Capital Management LLC44,358$5.57M0.0%+2.4%0.030%
8/6/2025Summit Investment Advisors Inc.6,187$847K0.7%+2.2%0.004%
8/6/2025 Fox Run Management L.L.C.12,891$1.62M0.3%+41.4%0.009%
8/6/2025 Metis Global Partners LLC6,647$835K0.0%-37.6%0.005%
8/6/2025 Wedbush Securities Inc.1,971$248K0.0%+28.4%0.001%
8/6/2025 Savant Capital LLC20,449$2.57M0.0%-14.1%0.014%
8/6/2025 Twin Capital Management Inc.12,034$1.51M0.2%+4.3%0.008%
8/6/2025 Andra AP fonden22,400$2.81M0.0%-51.5%0.015%
8/6/2025 Sprucegrove Investment Management Ltd.13,310$1.67M0.1%-5.7%0.009%
8/6/2025 Resona Asset Management Co. Ltd.49,627$6.24M0.0%+6.2%0.034%
8/6/2025 Cornercap Investment Counsel Inc.7,894$991K0.5%-2.7%0.005%
8/6/2025 BNP PARIBAS ASSET MANAGEMENT Holding S.A.163,630$20.55M0.0%+7.2%0.112%
8/5/2025 Ellevest Inc.1,651$207K0.0%N/A0.001%
8/5/2025 Claro Advisors LLC1,902$239K0.0%-33.9%0.001%
8/5/2025 NewSquare Capital LLC244$31K0.0%+134.6%0.000%
8/5/2025 Huntington National Bank2,050$257K0.0%-15.7%0.001%
8/5/2025 Bank of New York Mellon Corp904,054$113.54M0.0%-5.2%0.617%
8/5/2025 Westside Investment Management Inc.2,580$329K0.1%-3.0%0.002%
8/5/2025 Bank of Montreal Can103,314$12.98M0.0%-22.3%0.070%
8/5/2025 State of Michigan Retirement System291,303$36.59M0.2%+633.7%0.199%
8/5/2025 iA Global Asset Management Inc.16,224$2.04M0.0%-11.5%0.011%
8/5/2025 TIAA Trust National Association4,443$558K0.0%+2.3%0.003%
8/5/2025 Plato Investment Management Ltd4,939$618K0.0%+361.6%0.003%
8/5/2025 Hills Bank & Trust Co5,586$702K0.0%+17.4%0.004%
8/5/2025 Lifeworks Advisors LLC4,697$590K0.1%+5.5%0.003%
8/4/2025 Earned Wealth Advisors LLC1,779$223K0.0%+19.0%0.001%
8/4/2025 Amalgamated Bank28,300$3.55M0.0%-0.5%0.019%
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8/4/2025 Atria Investments Inc1,940$244K0.0%+14.3%0.001%
8/4/2025 Savvy Advisors Inc.3,065$385K0.0%N/A0.002%
8/4/2025 Retirement Systems of Alabama31,442$3.95M0.0%-82.9%0.021%
8/4/2025 Assetmark Inc.1,681$211K0.0%+1,669.5%0.001%
8/4/2025 Keybank National Association OH8,093$1.02M0.0%+7.7%0.006%
8/4/2025 Premier Path Wealth Partners LLC9,551$1.20M0.2%+9.6%0.007%
8/4/2025 Hantz Financial Services Inc.1,183$149K0.0%+3,843.3%0.001%
8/4/2025 Arkadios Wealth Advisors3,003$377K0.0%-10.5%0.002%
8/4/2025 Emerald Advisers LLC3,181$400K0.0%N/A0.002%
8/4/2025 World Investment Advisors6,478$814K0.0%+2.9%0.004%
8/4/2025 Flagship Harbor Advisors LLC2,338$294K0.0%-4.2%0.002%
8/1/2025 Howard Capital Management Inc.4,442$558K0.0%+11.3%0.003%
8/1/2025 Motley Fool Asset Management LLC7,497$942K0.0%+10.1%0.005%
8/1/2025 Fjarde AP Fonden Fourth Swedish National Pension Fund27,421$3.44M0.0%+13.2%0.019%
8/1/2025 AustralianSuper Pty Ltd739,416$92.86M0.5%+85.9%0.505%
8/1/2025 Teacher Retirement System of Texas40,975$5.15M0.0%+2.8%0.028%
8/1/2025 Y Intercept Hong Kong Ltd6,318$793K0.0%+243.7%0.004%
8/1/2025 Bessemer Group Inc.3,544$444K0.0%+16.7%0.002%
8/1/2025 OVERSEA CHINESE BANKING Corp Ltd45,980$5.78M0.2%-13.7%0.031%
8/1/2025 Envestnet Asset Management Inc.56,076$7.04M0.0%+7.2%0.038%
7/31/2025 Nisa Investment Advisors LLC50,902$6.39M0.0%-66.8%0.035%
7/31/2025 Wealthfront Advisers LLC8,684$1.09M0.0%+129.4%0.006%
7/31/2025 Brighton Jones LLC5,102$641K0.0%N/A0.003%
7/31/2025 MQS Management LLC3,817$479K0.3%+113.6%0.003%
7/31/2025 Linden Thomas Advisory Services LLC7,551$948K0.1%-1.8%0.005%
7/31/2025 CVA Family Office LLC393$49K0.0%+70.1%0.000%
7/31/2025 Focus Partners Advisor Solutions LLC6,311$793K0.0%+19.1%0.004%
7/31/2025 State of New Jersey Common Pension Fund D48,246$6.06M0.0%-0.3%0.033%
7/31/2025 AlphaQuest LLC11,164$1.40M0.1%+34.1%0.008%
7/31/2025 Sumitomo Mitsui Trust Group Inc.414,830$52.10M0.0%-0.5%0.283%
7/31/2025 Sector Gamma AS50,639$6.36M2.1%+171.7%0.035%
7/31/2025 Asset Management One Co. Ltd.62,810$7.89M0.0%+2.3%0.043%
7/30/2025 Freedom Investment Management Inc.3,144$395K0.0%+9.8%0.002%
7/30/2025 Forum Financial Management LP2,847$358K0.0%-19.6%0.002%
7/30/2025 Ethic Inc.12,438$1.57M0.0%+58.3%0.008%
7/30/2025 Citizens & Northern Corp7,028$883K0.2%+49.1%0.005%
7/30/2025 Legacy Wealth Asset Management LLC2,511$315K0.1%+3.8%0.002%
7/30/2025 Privium Fund Management B.V.20,500$2.67M0.6%N/A0.014%
7/30/2025 Securian Asset Management Inc.7,596$954K0.0%-1.3%0.005%
7/30/2025 DekaBank Deutsche Girozentrale108,721$13.68M0.0%-0.4%0.074%
7/29/2025 Cidel Asset Management Inc.1,862$234K0.0%+11.4%0.001%
7/29/2025 Chicago Partners Investment Group LLC2,358$309K0.0%N/A0.002%
7/29/2025 Mutual of America Capital Management LLC16,835$2.11M0.0%-1.3%0.011%
7/29/2025 Chevy Chase Trust Holdings LLC77,741$9.76M0.0%+0.8%0.053%
7/29/2025 Stratos Wealth Partners LTD.1,896$238K0.0%-15.2%0.001%
7/29/2025 Applied Finance Capital Management LLC3,703$465K0.0%N/A0.003%
7/29/2025 Nordea Investment Management AB125,935$15.81M0.0%+5.7%0.086%
7/29/2025 Praxis Investment Management Inc.5,690$715K0.0%+30.5%0.004%
7/29/2025 S Bank Fund Management Ltd1,308$164K0.0%-7.6%0.001%
7/29/2025 Hourglass Capital LLC17,970$2.26M0.6%N/A0.012%
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7/28/2025 Allianz Asset Management GmbH527,060$66.19M0.1%-21.1%0.360%
7/28/2025 New York State Teachers Retirement System110,649$13.90M0.0%+2.8%0.076%
7/28/2025 Mutual Advisors LLC1,780$234K0.0%N/A0.001%
7/28/2025 Generali Asset Management SPA SGR41,682$5.24M0.1%+6.4%0.028%
7/28/2025 Ritholtz Wealth Management6,076$763K0.0%N/A0.004%
7/28/2025 TD Asset Management Inc143,027$17.96M0.0%-49.7%0.098%
7/25/2025 NorthRock Partners LLC3,116$391K0.0%N/A0.002%
7/25/2025 Concord Wealth Partners228$29K0.0%+100.0%0.000%
7/25/2025 Sequoia Financial Advisors LLC4,527$568K0.0%+50.0%0.003%
7/25/2025 Yousif Capital Management LLC19,751$2.48M0.0%-13.0%0.013%
(Data available from 1/1/2016 forward)

BIIB Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of BIIB shares?

During the previous two years, 1,015 institutional investors and hedge funds held shares of Biogen. The most heavily invested institutionals were BlackRock Inc. ($4.01B), Vanguard Group Inc. ($2.33B), Primecap Management Co. CA ($2.18B), State Street Corp ($1.42B), International Assets Investment Management LLC ($695.87M), Wellington Management Group LLP ($639.38M), and Geode Capital Management LLC ($563.71M).Learn more on Biogen's institutional investors.

What percentage of Biogen's stock is owned by institutional investors?

87.93% of Biogen's stock is owned by institutional investors. Learn more on BIIB's institutional investor holdings.

Which institutional investors have been buying Biogen's stock?

Of the 849 institutional investors that purchased Biogen's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Vanguard Group Inc. ($4.74M), Norges Bank ($3.79M), Pacer Advisors Inc. ($2.66M), Van ECK Associates Corp ($1.75M), AQR Capital Management LLC ($1.34M), International Assets Investment Management LLC ($834.36K), and Invesco Ltd. ($824.64K).

How much institutional buying is happening at Biogen?

Institutional investors have bought a total of 24,542,856 shares in the last 24 months. This purchase volume represents approximately $3.79B in transactions.

Which of Biogen's major shareholders have been selling company stock?

Of the 389 institutional investors that sold Biogen's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: T. Rowe Price Investment Management Inc. ($1.60M), Pacer Advisors Inc. ($1.31M), Ameriprise Financial Inc. ($1.01M), Van ECK Associates Corp ($823.82K), Price T Rowe Associates Inc. MD ($782.52K), Clearbridge Investments LLC ($693.24K), and Sarissa Capital Management LP ($616.05K).

How much institutional selling is happening at Biogen?

Institutional investors have sold a total of 15,926,694 shares in the last 24 months. This volume of shares sold represents approximately $2.51B in transactions.


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This page (NASDAQ:BIIB) was last updated on 8/7/2025 by MarketBeat.com Staff
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