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Biogen (BIIB) Institutional Ownership

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$207.93 -1.30 (-0.62%)
Closing price 04:00 PM Eastern
Extended Trading
$206.12 -1.81 (-0.87%)
As of 07:58 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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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)
613
Total
Institutional Inflows
(last 12 months)
$3.72B
Number of
Institutional Sellers
(last 12 months)
361
Total
Institutional Outflows
(last 12 months)
$2.47B
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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
7/10/2026 Investors Research Corp1,641$355K0.1%-11.3%0.001%
7/10/2026 Insight Wealth Strategies LLC34,320$7.20M0.7%+16.9%0.023%
7/10/2026 Tema ETFs LLC2,772$599K0.0%+5.5%0.002%
7/10/2026 Generali Investments Management Co LLC7,437$1.61M0.3%+4.6%0.005%
7/10/2026 Handelsbanken Fonder AB93,236$20.15M0.1%+12.7%0.063%
7/10/2026 Charles Schwab Trust Co3,101$670K0.0%N/A0.002%
7/10/2026 Wealthcare Advisory Partners LLC4,728$1.02M0.0%-12.3%0.003%
7/9/2026 Contravisory Investment Management Inc.44,329$9.58M1.7%-0.8%0.030%
7/9/2026 Valeo Financial Advisors LLC1,301$281K0.0%N/A0.001%
7/8/2026 Beacon Investment Advisory Services Inc.12,229$2.64M0.1%-0.7%0.008%
7/8/2026 Trust Point Inc.1,078$233K0.0%N/A0.001%
7/8/2026 Czech National Bank42,023$9.08M0.0%+5.1%0.028%
7/8/2026 PensionDanmark Pensionsforsikringsaktieselskab10,506$2.27M0.0%-4.4%0.007%
7/8/2026 Assenagon Asset Management S.A.5,766$1.25M0.0%-17.3%0.004%
7/8/2026 Israel Discount Bank of New York1,055$228K0.4%N/A0.001%
7/7/2026 GAMMA Investing LLC6,462$1.40M0.1%+7.8%0.004%
7/7/2026 CoreCap Advisors LLC858$185K0.0%+237.8%0.001%
7/6/2026 RDA Financial Network3,000$648K0.1%-4.0%0.002%
7/6/2026 Boltwood Capital Management1,489$322K0.1%+16.9%0.001%
7/2/2026 Versant Capital Management Inc1,539$333K0.0%+15.6%0.001%
7/2/2026 First County Bank CT 3,933$850K0.4%-5.6%0.003%
6/22/2026 Sapient Capital LLC1,143$210K0.0%N/A0.001%
6/18/2026Western Wealth Management LLC1,183$217K0.0%-5.7%0.001%
6/18/2026Pacer Advisors Inc.660,408$121.07M0.2%-48.6%0.447%
6/12/2026Defilade Capital Management L.P.96,289$17.65M2.5%-40.6%0.065%
6/3/2026CoreFirst Bank & Trust295$54K0.0%-50.0%0.000%
6/3/2026Parallel Advisors LLC4,367$801K0.0%+1.5%0.003%
6/3/2026NewEdge Advisors LLC13,031$2.39M0.0%-38.1%0.009%
6/1/2026Caerus Investment Advisors LLC2,801$514K0.2%+5.0%0.002%
6/1/2026 Financial Solutions Advisory Group Inc.1,372$252K0.0%N/A0.001%
5/26/2026Glenmede Trust Co. NA11,652$2.14M0.0%+17.5%0.008%
5/22/2026 Summitry LLC4,737$868K0.0%-1.2%0.003%
5/22/2026Groupama Asset Managment8,753$1.61M0.0%+3.8%0.006%
5/22/2026Segall Bryant & Hamill LLC5,379$1.03M0.0%N/A0.004%
5/19/2026Western Wealth Management LLC1,183$217K0.0%-5.7%0.001%
5/19/2026Bank of America Corp DE1,156,369$212.00M0.0%+2.4%0.783%
5/19/2026Kentucky Retirement Systems19,502$3.58M0.1%+112.6%0.013%
5/19/2026Janus Henderson Group PLC18,975$3.48M0.0%-6.3%0.013%
5/19/2026Bull Harbor Capital LLC5,077$931K0.2%N/A0.003%
5/19/2026Arkadios Wealth Advisors4,781$877K0.0%+4.5%0.003%
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5/19/2026Encore Global Management LP500$92K0.1%N/A0.000%
5/18/2026ADAR1 Capital Management LLC11,000$2.02M0.1%-54.7%0.007%
5/18/2026Amundi790,827$144.98M0.0%+38.2%0.536%
5/18/2026 EverSource Wealth Advisors LLC3,178$583K0.0%+32.5%0.002%
5/18/2026California State Teachers Retirement System220,687$40.46M0.0%-2.5%0.149%
5/18/2026Royal Bank of Canada531,377$97.42M0.0%-1.9%0.360%
5/18/2026 Richwood Investment Advisors LLC2,032$373K0.3%-4.2%0.001%
5/18/2026Empowered Funds LLC21,775$3.99M0.0%-62.4%0.015%
5/16/2026The Manufacturers Life Insurance Company 95,108$17.44M0.0%-10.1%0.064%
5/16/2026Quantinno Capital Management LP116,374$21.34M0.0%+18.3%0.079%
5/16/2026SummitTX Capital L.P.21,656$3.97M0.1%N/A0.015%
5/16/2026Lazard Asset Management LLC16,935$3.11M0.0%-63.3%0.011%
5/16/2026Orbimed Advisors LLC61,600$11.29M0.2%N/A0.042%
5/15/2026OMERS ADMINISTRATION Corp20,149$3.69M0.0%+19.9%0.014%
5/15/2026Lombard Odier Asset Management Switzerland SA3,899$715K0.0%N/A0.003%
5/15/2026Waverly Advisors LLC3,151$578K0.0%+12.8%0.002%
5/14/2026Healthcare of Ontario Pension Plan Trust Fund9,220$1.69M0.0%-78.4%0.006%
5/14/2026Dai ichi Life Insurance Company Ltd5,808$1.07M0.0%-3.5%0.004%
5/14/2026Renaissance Technologies LLC203,396$37.29M0.1%-49.0%0.138%
5/14/2026Gabelli Funds LLC14,100$2.59M0.0%-8.4%0.010%
5/14/2026 Morningstar Investment Management LLC19,344$3.55M0.2%+3.0%0.013%
5/14/2026Public Employees Retirement System of Ohio46,062$8.45M0.0%-2.8%0.031%
5/14/2026Compound Planning Inc.2,742$503K0.0%-16.4%0.002%
5/14/2026Inceptionr LLC2,248$412K0.1%-53.9%0.002%
5/14/2026Knott David M Jr4,000$733K0.4%-33.3%0.003%
5/14/2026Bank of Nova Scotia20,436$3.75M0.0%-10.0%0.014%
5/14/2026Systematic Financial Management LP16,220$2.97M0.1%-2.5%0.011%
5/14/2026Sei Investments Co.71,513$13.11M0.0%+20.2%0.048%
5/14/2026Lido Advisors LLC4,432$813K0.0%-26.0%0.003%
5/13/2026Cetera Investment Advisers22,444$4.12M0.0%-4.5%0.015%
5/13/2026CI Investments Inc.4,078$748K0.0%-7.3%0.003%
5/13/2026First Trust Advisors LP673,958$123.56M0.1%+19.1%0.456%
5/12/2026Westpac Banking Corp1,843$338K0.0%-15.4%0.001%
5/12/2026 ABN Amro Investment Solutions5,976$1.10M0.0%+23.8%0.004%
5/8/2026PNC Financial Services Group Inc.39,484$7.24M0.0%+2.0%0.027%
5/8/2026Oslo Pensjonsforsikring AS1,840$337K0.1%N/A0.001%
5/8/2026Andra AP fonden52,000$9.53M0.1%+1,980.0%0.035%
5/8/2026 Wilkerson Advisory Group LLC593$109K0.0%+129.0%0.000%
5/8/2026Cassaday & Co Wealth Management LLC218$40K0.0%N/A0.000%
5/8/2026Convergence Investment Partners LLC13,557$2.49M0.4%+11.5%0.009%
5/7/2026Meeder Asset Management Inc.1,071$196K0.0%+395.8%0.001%
5/7/2026Meeder Advisory Services Inc.4,721$866K0.0%+1.2%0.003%
5/7/2026Dimensional Fund Advisors LP1,079,119$197.88M0.0%+12.3%0.731%
5/7/2026Parallel Advisors LLC4,367$801K0.0%+1.5%0.003%
5/7/2026 AlphaCentric Advisors LLC3,835$703K0.7%+5.7%0.003%
5/7/2026KBC Group NV234,692$43.03M0.1%+339.5%0.159%
5/7/2026SEB Asset Management AB41,869$7.68M0.0%N/A0.028%
5/7/2026Swiss National Bank430,600$78.94M0.0%+7.2%0.292%
5/7/2026AIA Group Ltd9,329$1.71M0.0%+310.1%0.006%
5/7/2026 Mediolanum International Funds Ltd6,054$1.14M0.0%N/A0.004%
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5/6/2026California Public Employees Retirement System340,903$62.50M0.0%+3.1%0.231%
5/6/2026Kera Capital Partners Inc.1,723$316K0.0%+3.5%0.001%
5/6/2026Assetmark Inc.2,690$493K0.0%+12.5%0.002%
5/6/2026Bessemer Group Inc.3,127$573K0.0%+15.3%0.002%
5/6/2026 SteelPeak Wealth LLC2,704$496K0.0%N/A0.002%
5/6/2026 Independent Financial Group LLC3,328$610K0.0%N/A0.002%
5/5/2026Wealthfront Advisers LLC15,679$2.87M0.0%+0.8%0.011%
5/5/2026 D.A. Davidson & CO.1,218$223K0.0%N/A0.001%
5/5/2026Twin Capital Management Inc.4,430$812K0.1%N/A0.003%
5/5/2026Bank of New York Mellon Corp788,523$144.56M0.0%-2.8%0.534%


BIIB Institutional Ownership - Frequently Asked Questions

During the previous two years, 1,012 institutional investors and hedge funds held shares of Biogen. The most heavily invested institutionals were Vanguard Group Inc. ($3.07B), Primecap Management Co. CA ($2.60B), State Street Corp ($1.26B), Geode Capital Management LLC ($736.44M), International Assets Investment Management LLC ($695.87M), Wellington Management Group LLP ($624.99M), and Norges Bank ($464.41M).Learn more on Biogen's institutional investors.

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

Of the 898 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: Norges Bank ($7.23M), Pacer Advisors Inc. ($2.78M), AQR Capital Management LLC ($1.75M), Boston Partners ($1.72M), Van ECK Associates Corp ($967.52K), Fred Alger Management LLC ($810.93K), and Invesco Ltd. ($788.39K).

Institutional investors have bought a total of 23,992,132 shares in the last 24 months. This purchase volume represents approximately $3.72B in transactions.

Of the 360 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: Wellington Management Group LLP ($1.25M), Primecap Management Co. CA ($1.19M), Amundi ($782.03K), Invesco Ltd. ($762.69K), Renaissance Technologies LLC ($761.01K), SG Americas Securities LLC ($697.49K), and Pacer Advisors Inc. ($625.48K).

Institutional investors have sold a total of 15,857,682 shares in the last 24 months. This volume of shares sold represents approximately $2.47B in transactions.


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This page (NASDAQ:BIIB) was last updated on 7/30/2026 by MarketBeat.com Staff.
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