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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; 1,046 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: 1,046 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 20261,046$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
American National Bank100$35.0K0.01%00.0%Unchanged
Klaas Financial Asset Advisors, LLC100$35.0K0.01%00.0%Unchanged
Valley National Advisers Inc102$35.0K0.01%+21+25.9%Added
Beck Bode, LLC100$35.0K0.01%+100New
Private Capital Group, LLC107$37.0K0.01%−99−48.1%Reduced
Sittner & Nelson, LLC110$38.0K0.03%00.0%Unchanged
Rosenberg Matthew Hamilton109$38.0K0.02%00.0%Unchanged
Anchor Investment Management, LLC110$38.1K0.01%00.0%Unchanged
BerganKDV Wealth Management, LLC114$39.0K0.00%00.0%Unchanged
Smithfield Trust Co112$39.0K0.00%00.0%Unchanged
Tarbox Family Office, Inc.114$39.0K0.01%+18+18.8%Added
Wagner Wealth Management, LLC112$39.0K0.03%+107+2,140.0%Added
Logan Capital Management Inc115$40.0K0.00%00.0%Unchanged
Hartford Financial Management Inc.115$40.0K0.01%00.0%Unchanged
Sandy Spring Bank115$40.0K0.00%00.0%Unchanged
Graves-Light Private Wealth Management, Inc.115$40.0K0.01%+91+379.2%Added
BBVA USA115$40.0K0.00%+115New
Kistler-Tiffany Companies, LLC119$41.0K0.01%00.0%Unchanged
First Horizon Corp119$41.0K0.00%+19+19.0%Added
tru Independence LLC119$41.0K0.01%+119New
Cary Street Partner Investment Advisory LLC120$42.0K0.01%+5+4.3%Added
Northern Oak Wealth Management Inc125$43.0K0.01%00.0%Unchanged
FourThought Financial, LLC132$45.0K0.01%−1,060−88.9%Reduced
Concord Wealth Partners129$45.0K0.01%+10+8.4%Added
Harel Insurance Investments & Financial Services Ltd.133$46.0K0.00%00.0%Unchanged
Gables Capital Management Inc.136$47.0K0.03%00.0%Unchanged
Accel Wealth Management137$47.0K0.03%00.0%Unchanged
West Paces Advisors Inc.140$48.5K0.02%00.0%Unchanged
BDO Wealth Advisors, LLC145$50.0K0.01%−9−5.8%Reduced
CVA Family Office, LLC145$50.0K0.01%+35+31.8%Added
Itau Unibanco Holding S.A.145$50.0K0.00%+145New
Hudock, Inc.150$51.0K0.02%+10+7.1%Added
Sierra Capital LLC151$52.0K0.01%00.0%Unchanged
NEXT Financial Group, Inc153$53.0K0.00%−93−37.8%Reduced
Harbor Investment Advisory, LLC159$55.0K0.01%−456−74.1%Reduced
Cypress Capital, LLC158$55.0K0.05%+43+37.4%Added
Trust Co163$56.0K0.04%−37−18.5%Reduced
Silvant Capital Management LLC164$57.0K0.01%00.0%Unchanged
Coastal Capital Group, Inc.169$59.0K0.01%+69+69.0%Added
Hexagon Capital Partners LLC177$61.0K0.02%00.0%Unchanged
Eagle Bay Advisors LLC177$62.0K0.05%+177New
Gemmer Asset Management LLC189$65.0K0.01%+3+1.6%Added
North Star Investment Management Corp.196$68.0K0.01%+24+14.0%Added
MCF Advisors LLC204$71.0K0.01%+19+10.3%Added
Montag A & Associates Inc209$72.0K0.00%00.0%Unchanged
Credit Agricole S A214$74.0K0.00%−286−57.2%Reduced
Plante Moran Financial Advisors, LLC214$74.0K0.02%00.0%Unchanged
Simon Quick Advisors, LLC230$79.0K0.02%−69−23.1%Reduced
Sonora Investment Management, LLC227$79.0K0.01%−13,000−98.3%Reduced
Gradient Investments LLC232$80.0K0.00%00.0%Unchanged
Healthcare of Ontario Pension Plan Trust Fund230$80.0K0.00%00.0%Unchanged
Bellwether Advisors, LLC237$82.0K0.03%00.0%Unchanged
Walled Lake Planning & Wealth Management, LLC236$82.0K0.05%+195+475.6%Added
Maj Invest Holding A/S250$87.0K0.00%00.0%Unchanged
Bartlett & Co. Wealth Management LLC256$88.6K0.00%00.0%Unchanged
Bartlett & Co. LLC256$89.0K0.00%00.0%Unchanged
Phoenix Wealth Advisors263$91.0K0.07%00.0%Unchanged
Disciplined Investments, LLC277$96.0K0.05%00.0%Unchanged
HM Payson & Co300$104.0K0.00%−24−7.4%Reduced
Atlas Private Wealth Advisors301$104.0K0.06%00.0%Unchanged
Mark Sheptoff Financial Planning, LLC300$104.0K0.06%+300New
JJJ Advisors Inc.307$106.0K0.04%+27+9.6%Added
Zions Bancorporation, N.A.310$107.0K0.01%+121+64.0%Added
True Link Financial Advisors, LLC11$108.0K0.02%––
Glassman Wealth Services326$113.0K0.02%+14+4.5%Added
CNB Bank328$114.0K0.07%−112−25.5%Reduced
CX Institutional335$116.0K0.01%+97+40.8%Added
Lindbrook Capital, LLC339$117.0K0.03%+111+48.7%Added
TD Private Client Wealth LLC342$118.4K0.01%+24+7.5%Added
Asset Dedication, LLC347$122.0K0.02%00.0%Unchanged
Optimum Investment Advisors351$122.0K0.04%00.0%Unchanged
IMA Wealth, Inc.358$124.0K0.03%−35−8.9%Reduced
Perkins Coie Trust Co366$127.0K0.04%+16+4.6%Added
Prentice Wealth Management LLC388$134.0K0.07%−93−19.3%Reduced
Baldwin Brothers Inc400$139.0K0.02%00.0%Unchanged
AlphaCentric Advisors LLC400$139.0K0.04%00.0%Unchanged
Bedel Financial Consulting, Inc.406$141.0K0.05%−77−15.9%Reduced
City Holding Co425$147.0K0.03%+50+13.3%Added
Dougherty Wealth Advisers LLC428$148.0K0.22%00.0%Unchanged
Washington Trust Co427$148.0K0.00%+297+228.5%Added
Hanson & Doremus Investment Management525$149.0K0.04%−76−12.6%Reduced
Exchange Traded Concepts, LLC429$149.0K0.00%+22+5.4%Added
Thompson Siegel & Walmsley LLC446$154.0K0.00%−15−3.3%Reduced
CoreFirst Bank & Trust450$156.0K0.11%00.0%Unchanged
LeJeune Puetz Investment Counsel LLC452$157.0K0.06%00.0%Unchanged
Patriot Financial Group Insurance Agency, LLC459$159.0K0.03%+24+5.5%Added
Wolff Wiese Magana LLC469$163.0K0.12%−17−3.5%Reduced
Pinnacle Bancorp, Inc.482$167.0K0.08%−506−51.2%Reduced
Mirova497$172.0K0.02%00.0%Unchanged
Adalta Capital Management LLC500$173.0K0.09%−300−37.5%Reduced
Allworth Financial LP502$174.0K0.00%−189−27.4%Reduced
Centaurus Financial, Inc.504$175.0K0.01%00.0%Unchanged
Liberty Wealth Management LLC511$177.0K0.07%00.0%Unchanged
Twin Lakes Capital Management, LLC528$183.0K0.10%00.0%Unchanged
Burleson & Company, LLC540$187.0K0.03%00.0%Unchanged
Institutional & Family Asset Management, LLC546$189.0K0.03%+26+5.0%Added
Ellevest, Inc.560$194.0K0.02%−61−9.8%Reduced
Wolverine Asset Management LLC568$196.0K0.00%+546+2,481.8%Added
Ssi Investment Management LLC570$200.0K0.01%+570New
Vantage Consulting Group Inc578$200.0K0.03%+578New