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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, Q1 2024

Institutional positions in Biogen Inc. as of Mar 31, 2024. 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
955
−41 vs. Q4 2023
Shares held
129.7M
+1.13M (+0.9%) vs. Q4 2023
Total value
$28.0B
−$5.30B (−15.9%) vs. Q4 2023
New holders
105
304 more added
Sold out
146
354 more reduced

9 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2023: 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 holdersQ1 2024: 955 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 heldQ1 2024: $28.0B
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, Q1 2024

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q4 2023.

Institutions holding BIIB in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Empirical Finance, LLC5,343$1.15M0.07%+178+3.4%Added
Spears Abacus Advisors LLC5,280$1.14M0.02%00.0%Unchanged
Premier Path Wealth Partners, LLC5,275$1.14M0.21%+1,450+37.9%Added
Seizert Capital Partners, LLC5,155$1.11M0.05%−119−2.3%Reduced
Unison Advisors LLC5,078$1.09M0.11%00.0%Unchanged
Everence Capital Management Inc5,000$1.08M0.07%00.0%Unchanged
Assetmark, Inc4,997$1.08M0.00%−38−0.8%Reduced
Uncommon Cents Investing LLC4,860$1.05M0.32%+350+7.8%Added
Private Advisor Group, LLC4,833$1.04M0.01%+224+4.9%Added
Kentucky Retirement Systems Insurance Trust Fund4,782$1.03M0.07%−380−7.4%Reduced
Inspire Trust Co, N.A.4,775$1.03M0.57%+2,500+109.9%Added
Pinnacle Associates Ltd4,761$1.03M0.02%+204+4.5%Added
Nebula Research & Development LLC4,700$1.01M0.22%+4,700New
Provident Co of the Employees of the Hebrew University LTD4,631$998.9K1.06%+4,631New
Enterprise Bank & Trust Co4,620$996.2K0.34%+4+0.1%Added
Northwestern Mutual Investment Management Company, LLC4,598$991.5K0.03%+12+0.3%Added
Lindenwold Advisors4,520$974.6K0.52%+1,640+56.9%Added
Citizens & Northern Corp4,501$970.6K0.33%+97+2.2%Added
Alberta Investment Management Corp4,500$970.3K0.01%−2,100−31.8%Reduced
Shell Asset Management Co4,055$940.0K0.04%−3,407−45.7%Reduced
Sherbrooke Park Advisers LLC4,346$937.1K0.18%+4,346New
Motley Fool Asset Management LLC4,289$924.8K0.06%+320+8.1%Added
Harvest Fund Management Co., Ltd4,280$923.0K0.08%+2,990+231.8%Added
Beacon Pointe Advisors, LLC4,279$922.7K0.01%−263−5.8%Reduced
Sumitomo Life Insurance Co4,205$906.7K0.02%−186−4.2%Reduced
E Fund Management Co., Ltd.4,183$902.0K0.06%+128+3.2%Added
Systematic Financial Management LP4,160$897.0K0.03%+2,500+150.6%Added
Hills Bank & Trust Co4,148$894.4K0.08%+128+3.2%Added
National Asset Management, Inc.3,475$893.1K0.02%+97+2.9%Added
Quantbot Technologies LP4,108$885.8K0.05%+3,445+519.6%Added
Worldquant Millennium Advisors LLC4,041$871.4K0.01%+4,041New
Farmers & Merchants Investments Inc4,007$864.0K0.03%00.0%Unchanged
Cohen Klingenstein LLC4,000$862.5K0.03%00.0%Unchanged
Texas Yale Capital Corp.3,987$859.7K0.04%00.0%Unchanged
CenterBook Partners LP3,965$855.0K0.06%+657+19.9%Added
O'Shaughnessy Asset Management, LLC3,940$849.5K0.01%+188+5.0%Added
Whittier Trust Co3,887$838.1K0.01%−210−5.1%Reduced
Jefferies Financial Group Inc.3,884$837.5K0.02%−45−1.1%Reduced
Tiaa Trust, National Association3,871$834.7K0.00%+369+10.5%Added
Richwood Investment Advisors, LLC3,856$831.5K0.74%−44−1.1%Reduced
Missouri Trust & Investment Co3,832$826.3K0.32%+370+10.7%Added
Great Valley Advisor Group, Inc.3,829$825.9K0.03%+1,043+37.4%Added
Cambridge Investment Research Advisors, Inc.3,769$813.0K0.00%−1,708−31.2%Reduced
CWM, LLC3,703$798.0K0.00%+245+7.1%Added
Advisory Services Network, LLC3,663$789.8K0.02%+1,308+55.5%Added
Congress Park Capital LLC3,638$784.5K0.35%−479−11.6%Reduced
South Dakota Investment Council3,619$780.0K0.02%00.0%Unchanged
Ironwood Financial, llc3,614$779.3K0.18%00.0%Unchanged
Cornercap Investment Counsel Inc3,599$776.1K0.12%+3,599New
Lombard Odier Asset Management (Switzerland) SA3,595$775.2K0.05%+3,595New
Integrated Wealth Concepts LLC3,570$769.8K0.01%+1,556+77.3%Added
Mutual Advisors, LLC3,544$764.2K0.02%+48+1.4%Added
Stratos Wealth Partners, LTD.3,524$759.9K0.01%−499−12.4%Reduced
PKO Investment Management Joint-Stock Co3,500$758.4K0.09%+1,500+75.0%Added
United Bank3,473$748.9K0.38%+516+17.5%Added
Tokio Marine Asset Management Co Ltd3,408$734.9K0.04%+465+15.8%Added
Unique Wealth Strategies, LLC3,406$734.4K0.36%+3,406New
GWM Advisors LLC3,371$726.9K0.01%−3,168−48.4%Reduced
Roberts Glore & Co Inc3,355$723.4K0.22%+9+0.3%Added
SFMG, LLC3,341$720.4K0.06%+3,341New
Envestnet Portfolio Solutions, Inc.3,295$710.5K0.00%+76+2.4%Added
Investment House LLC3,269$704.9K0.04%00.0%Unchanged
Northwest Bank & Trust Co3,259$700.0K0.64%−14−0.4%Reduced
V-Square Quantitative Management LLC3,245$699.7K0.12%+584+21.9%Added
Public Sector Pension Investment Board3,196$689.2K0.00%−100−3.0%Reduced
Autumn Glory Partners, LLC3,184$686.6K0.34%00.0%Unchanged
Ieq Capital, LLC3,133$675.5K0.01%−1,150−26.9%Reduced
Klingenstein Fields & Co LP3,131$675.1K0.03%−12−0.4%Reduced
Gsa Capital Partners LLP3,123$673.0K0.05%+1,652+112.3%Added
Horizon Kinetics Asset Management LLC3,121$673.0K0.01%+2+0.1%Added
Apollon Wealth Management, LLC3,096$667.6K0.02%−1,898−38.0%Reduced
Nicolet Bankshares Inc3,094$667.2K0.16%+32+1.0%Added
Adviser Investments LLC3,089$666.0K0.01%+67+2.2%Added
Bessemer Group Inc3,054$657.0K0.00%+43+1.4%Added
Callan Capital, LLC3,041$655.7K0.06%+223+7.9%Added
Forum Financial Management, LP3,006$648.2K0.01%−37−1.2%Reduced
Aquila Investment Management LLC3,000$646.9K0.55%00.0%Unchanged
Intact Investment Management Inc.3,000$646.9K0.03%+700+30.4%Added
Two Sigma Securities, LLC3,000$646.9K0.03%+3,000New
Marathon Trading Investment Management LLC3,000$646.9K0.26%+3,000New
Concurrent Investment Advisors, LLC2,997$646.2K0.03%+1,567+109.6%Added
Fifth Third Bancorp2,985$643.7K0.00%−135−4.3%Reduced
Raymond James Trust N.A.2,968$640.0K0.02%+349+13.3%Added
KCM Investment Advisors LLC2,953$636.8K0.02%+48+1.7%Added
Massachusetts Wealth Management2,950$636.1K0.45%−300−9.2%Reduced
Cim Investment Mangement Inc2,946$635.2K0.19%00.0%Unchanged
CAPROCK Group, Inc.2,936$633.1K0.04%−2,577−46.7%Reduced
Banque Cantonale Vaudoise2,917$630.0K0.02%−1,505−34.0%Reduced
Moody Aldrich Partners LLC2,901$625.5K0.11%−709−19.6%Reduced
Kestra Advisory Services, LLC2,890$623.2K0.00%+119+4.3%Added
Fernwood Investment Management, LLC2,883$621.7K0.18%+3+0.1%Added
Baker Tilly Wealth Management, LLC2,851$614.8K0.11%−30−1.0%Reduced
Portside Wealth Group, LLC2,817$607.4K0.11%−245−8.0%Reduced
Vestcor Inc2,806$605.0K0.02%−705−20.1%Reduced
Wahed Invest LLC2,741$591.0K0.13%+336+14.0%Added
GHP Investment Advisors, Inc.2,710$584.3K0.03%−40−1.5%Reduced
Horizon Investments, LLC2,690$580.0K0.02%+139+5.4%Added
Fiduciary Trust Co2,685$579.0K0.01%−25−0.9%Reduced
Readystate Asset Management LP2,680$577.9K0.02%+2,680New
CIBC Private Wealth Group, LLC2,679$575.5K0.00%−31−1.1%Reduced