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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
Kentucky Retirement Systems Insurance Trust Fund3,889$1.10M0.12%−30−0.8%Reduced
Farmers & Merchants Investments Inc3,880$1.10M0.05%−17−0.4%Reduced
Horizon Kinetics Asset Management LLC3,875$1.10M0.03%00.0%Unchanged
Motley Fool Asset Management LLC3,874$1.10M0.07%−255−6.2%Reduced
Mercer Global Advisors Inc3,872$1.10M0.01%+401+11.6%Added
Bank Pictet & Cie (Asia) Ltd3,868$1.09M0.30%+276+7.7%Added
Northeast Financial Consultants Inc3,839$1.09M0.07%00.0%Unchanged
Synovus Financial Corp3,829$1.08M0.01%−291−7.1%Reduced
Ontario Teachers Pension Plan Board3,826$1.08M0.00%+2,776+264.4%Added
Pictet & Cie (Europe) SA3,814$1.08M0.04%+1,545+68.1%Added
Ironwood Financial, llc3,794$1.07M0.31%+328+9.5%Added
Estate Counselors, LLC3,795$1.07M0.13%+30+0.8%Added
Cullinan Associates Inc3,754$1.06M0.06%+120+3.3%Added
Pearl River Capital, LLC3,714$1.05M0.29%+1,262+51.5%Added
GAM Holding AG3,646$1.03M0.05%+10.0%Added
Evercore Wealth Management, LLC3,612$1.02M0.02%−998−21.6%Reduced
USA Financial Portformulas Corp3,595$1.02M0.91%+3,595New
Everence Capital Management Inc3,580$1.01M0.08%00.0%Unchanged
Resonant Capital Advisors, LLC3,515$995.0K0.17%+195+5.9%Added
D.A. Davidson & Co.3,491$988.0K0.01%−73−2.0%Reduced
Triangle Securities Wealth Management3,447$975.0K0.33%−38−1.1%Reduced
Peapack Gladstone Financial Corp3,434$972.0K0.02%−308−8.2%Reduced
Levin Capital Strategies, L.P.3,409$965.0K0.10%00.0%Unchanged
Greenleaf Trust3,401$962.0K0.01%+1,298+61.7%Added
Oxler Private Wealth LLC3,380$956.0K0.42%00.0%Unchanged
Old Dominion Capital Management Inc3,357$950.0K0.20%−26−0.8%Reduced
Pallas Capital Advisors LLC3,367$941.0K0.10%+67+2.0%Added
FDx Advisors, Inc.3,306$936.0K0.03%−420−11.3%Reduced
Ci Investments Inc.3,285$930.0K0.00%+843+34.5%Added
Lumature Wealth Partners, LLC3,258$922.0K0.38%+310+10.5%Added
Cetera Advisor Networks LLC3,235$915.0K0.01%+126+4.1%Added
GHP Investment Advisors, Inc.3,171$897.0K0.07%+268+9.2%Added
KCM Investment Advisors LLC3,160$894.0K0.04%+11+0.3%Added
Alhambra Investment Partners LLC3,131$886.0K0.68%+200+6.8%Added
Maverick Capital LtdSuperinvestorMaverick Capital3,112$881.0K0.01%+3,112New
Scott Investment Partners LLP3,100$877.0K0.60%00.0%Unchanged
Raymond James Trust N.A.3,091$875.0K0.03%+291+10.4%Added
Toroso Investments, LLC3,069$869.0K0.03%+599+24.3%Added
Blue Square Asset Management, LLC3,044$861.0K0.54%−26−0.8%Reduced
Deseret Mutual Benefit Administrators3,022$855.0K0.16%+2,036+206.5%Added
Fiduciary Trust Co3,003$850.0K0.02%−10−0.3%Reduced
Verdence Capital Advisors LLC2,995$848.0K0.11%−24−0.8%Reduced
JustInvest LLC2,973$841.0K0.08%+339+12.9%Added
Apriem Advisors2,962$838.0K0.12%−21,791−88.0%Reduced
Ethic Inc.2,946$834.0K0.09%+747+34.0%Added
Meiji Yasuda Life Insurance Co2,930$829.0K0.01%−190−6.1%Reduced
Hancock Whitney Corp2,925$828.0K0.03%−567−16.2%Reduced
Ropes Wealth Advisors LLC2,915$825.0K0.13%+15+0.5%Added
AtonRa Partners2,914$825.0K0.28%+281+10.7%Added
Sompo Asset Management Co., Ltd.2,870$812.0K0.19%−2,430−45.8%Reduced
DuPont Capital Management Corp2,839$803.0K0.03%−2,130−42.9%Reduced
Personal Cfo Solutions, LLC2,829$801.0K0.16%−22−0.8%Reduced
Meiji Yasuda Asset Management Co Ltd.2,823$799.0K0.06%−100−3.4%Reduced
Symmetry Partners, LLC2,845$798.0K0.05%−371−11.5%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
Huntington National Bank2,779$787.0K0.01%−21−0.8%Reduced
Allstate Corp2,778$786.0K0.03%−117−4.0%Reduced
E Fund Management Co., Ltd.2,756$780.0K0.03%+2,756New
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
Engineers Gate Manager LP2,715$768.0K0.04%+55+2.1%Added
Brookfield Asset Management Inc.2,710$767.0K0.00%+825+43.8%Added
FineMark National Bank & Trust2,702$765.0K0.03%−41−1.5%Reduced
Stoneridge Investment Partners LLC2,694$762.0K0.38%−1,140−29.7%Reduced
Baker Tilly Wealth Management, LLC2,633$745.0K0.10%+403+18.1%Added
Philadelphia Trust Co2,630$744.0K0.05%00.0%Unchanged
Eagle Global Advisors LLC2,625$743.0K0.05%00.0%Unchanged
Cullen/Frost Bankers, Inc.2,619$741.0K0.01%−161−5.8%Reduced
Capital Investment Advisors, LLC2,616$740.0K0.02%−484−15.6%Reduced
Knowledge Leaders Capital, LLC2,604$737.0K0.59%+31+1.2%Added
IndexIQ Advisors LLC2,588$732.0K0.02%+97+3.9%Added
Corient Capital Partners, LLC2,533$717.0K0.05%−411−14.0%Reduced
Legacy Wealth Asset Management, LLC2,501$708.0K0.32%+13+0.5%Added
NJ State Employees Deferred Compensation Plan2,500$707.0K0.10%00.0%Unchanged
XTX Topco Ltd2,500$707.0K0.24%+2,500New
Teza Capital Management LLC2,495$706.0K0.34%−4,922−66.4%Reduced
Benjamin F. Edwards & Company, Inc.2,492$705.0K0.04%+135+5.7%Added
BancorpSouth Bank2,493$705.0K0.10%+179+7.7%Added
Signaturefd, LLC2,484$703.0K0.02%+79+3.3%Added
Brewin Dolphin Ltd2,464$697.3K0.03%00.0%Unchanged
Oracle Investment Management Inc2,412$683.0K0.09%00.0%Unchanged
Wedbush Securities Inc2,414$683.0K0.03%+76+3.3%Added
Pensionfund DSM Netherlands2,400$679.0K0.09%−9,600−80.0%Reduced
Signature Wealth Management Partners, LLC2,358$667.0K0.60%00.0%Unchanged
SeaCrest Wealth Management, LLC2,352$666.0K0.08%+58+2.5%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
ETF Managers Group, LLC2,325$664.0K0.01%+178+8.3%Added
Balasa Dinverno & Foltz LLC2,313$655.0K0.05%+3+0.1%Added
Absher Wealth Management, LLC2,304$652.0K0.12%+127+5.8%Added
FORA Capital, LLC2,290$648.0K0.16%−7,599−76.8%Reduced
Dakota Wealth Management2,290$648.0K0.07%00.0%Unchanged
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
Donoghue Forlines LLC2,260$640.0K0.12%+2,260New
Ritholtz Wealth Management2,241$634.0K0.04%+2+0.1%Added
Parallel Advisors, LLC2,192$620.0K0.03%+22+1.0%Added
Avantax Advisory Services, Inc.2,175$617.0K0.01%+648+42.4%Added
First Hawaiian Bank2,174$615.0K0.03%00.0%Unchanged