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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, Q2 2023

Institutional positions in Biogen Inc. as of Jun 30, 2023. 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
1,009
+11 vs. Q1 2023
Shares held
126.8M
−1.09M (−0.9%) vs. Q1 2023
Total value
$36.1B
+$1.11B (+3.2%) vs. Q1 2023
New holders
96
322 more added
Sold out
85
363 more reduced

6 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2023: 1,009 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 heldQ2 2023: $36.1B
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, Q2 2023

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2023.

Institutions holding BIIB in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Spears Abacus Advisors LLC5,280$1.50M0.12%00.0%Unchanged
Ci Investments Inc.5,215$1.49M0.01%+1,385+36.2%Added
Kentucky Retirement Systems Insurance Trust Fund5,196$1.48M0.11%+72+1.4%Added
Shell Asset Management Co5,175$1.47M0.06%−726−12.3%Reduced
Hennion & Walsh Asset Management, Inc.5,175$1.47M0.09%+2,709+109.9%Added
O'Shaughnessy Asset Management, LLC5,145$1.47M0.02%+249+5.1%Added
Eudaimonia Partners, LLC5,114$1.46M0.33%+3,072+150.4%Added
Unison Advisors LLC5,078$1.45M0.16%00.0%Unchanged
Marshall Wace, LLP5,055$1.44M0.00%−527,878−99.1%Reduced
Arlington Partners LLC5,025$1.43M0.22%−50−1.0%Reduced
Essex Investment Management Co LLC5,012$1.43M0.20%00.0%Unchanged
Leonteq Securities AG4,934$1.41M0.14%+4,661+1,707.3%Added
Ameritas Investment Partners, Inc.4,879$1.39M0.05%+46+1.0%Added
Quantinno Capital Management LP4,850$1.38M0.08%+1,471+43.5%Added
Legacy Bridge, LLC4,840$1.38M0.92%−1,270−20.8%Reduced
Hudson Canyon Capital Management4,815$1.37M1.08%−153−3.1%Reduced
Vinva Investment Management Ltd4,814$1.36M0.12%−56−1.1%Reduced
Citizens & Northern Corp4,725$1.35M0.51%−160−3.3%Reduced
Empirical Finance, LLC4,714$1.34M0.10%+531+12.7%Added
Sumitomo Life Insurance Co4,680$1.33M0.06%−438−8.6%Reduced
Lindenwold Advisors4,655$1.33M0.81%−845−15.4%Reduced
Enterprise Bank & Trust Co4,600$1.31M0.50%+203+4.6%Added
TD Waterhouse Canada Inc.4,288$1.30M0.01%+113+2.7%Added
Northwestern Mutual Investment Management Company, LLC4,565$1.30M0.03%+39+0.9%Added
Estate Counselors, LLC4,555$1.30M0.16%00.0%Unchanged
Dynamic Advisor Solutions LLC4,544$1.29M0.07%+1,178+35.0%Added
Advisory Services Network, LLC4,520$1.29M0.03%−753−14.3%Reduced
Alberta Investment Management Corp4,500$1.28M0.01%−13,879−75.5%Reduced
Assetmark, Inc4,463$1.27M0.00%+2,040+84.2%Added
Harvest Volatility Management LLC4,461$1.27M0.25%−731−14.1%Reduced
Private Advisor Group, LLC4,532$1.26M0.01%+11+0.2%Added
Pinnacle Associates Ltd4,429$1.26M0.02%+10+0.2%Added
TD Private Client Wealth LLC4,388$1.25M0.05%−289−6.2%Reduced
Veritable, L.P.4,295$1.22M0.02%−10.0%Reduced
Alhambra Investment Partners LLC4,179$1.19M0.79%−21−0.5%Reduced
Stoneridge Investment Partners LLC4,160$1.19M0.52%+695+20.1%Added
Richwood Investment Advisors, LLC4,152$1.18M1.15%−89−2.1%Reduced
Cetera Investment Advisers4,135$1.18M0.01%−61−1.5%Reduced
Ieq Capital, LLC4,125$1.17M0.02%+426+11.5%Added
CWM, LLC4,114$1.17M0.01%+1,312+46.8%Added
Everence Capital Management Inc3,950$1.17M0.10%00.0%Unchanged
Farmers & Merchants Investments Inc4,027$1.15M0.04%−55−1.3%Reduced
Cohen Klingenstein LLC4,000$1.14M0.05%00.0%Unchanged
Stratos Wealth Partners, LTD.3,990$1.14M0.03%−20−0.5%Reduced
Texas Yale Capital Corp.3,987$1.14M0.05%00.0%Unchanged
Whittier Trust Co3,983$1.13M0.02%−43−1.1%Reduced
Fifth Third Bancorp3,955$1.13M0.00%+48+1.2%Added
HRT Financial LP3,896$1.11M0.01%+3,896New
Vestcor Inc3,870$1.10M0.04%00.0%Unchanged
Bank Pictet & Cie (Asia) Ltd3,824$1.09M0.32%00.0%Unchanged
National Asset Management, Inc.3,822$1.09M0.02%−292−7.1%Reduced
Strategic Wealth Partners, Ltd.3,821$1.09M0.14%−65−1.7%Reduced
South Dakota Investment Council3,819$1.09M0.02%−200−5.0%Reduced
Holocene Advisors, LP3,791$1.08M0.00%−190,314−98.0%Reduced
Privium Fund Management B.V.3,820$1.08M0.31%00.0%Unchanged
Linden Thomas Advisory Services, LLC3,781$1.08M0.24%+16+0.4%Added
Seizert Capital Partners, LLC3,743$1.07M0.06%−390−9.4%Reduced
Cetera Advisors LLC3,692$1.05M0.02%−1,341−26.6%Reduced
Mutual Advisors, LLC3,669$1.05M0.04%−601−14.1%Reduced
Hills Bank & Trust Co3,663$1.04M0.13%+205+5.9%Added
Baldwin Brothers Inc3,661$1.04M0.09%−262−6.7%Reduced
Arjuna Capital3,656$1.04M0.37%+204+5.9%Added
Motley Fool Asset Management LLC3,654$1.04M0.09%+3,654New
Roberts Glore & Co Inc3,617$1.03M0.33%−217−5.7%Reduced
Ironwood Financial, llc3,614$1.03M0.27%−200−5.2%Reduced
Impax Asset Management Group plc3,588$1.02M0.00%−63−1.7%Reduced
Portside Wealth Group, LLC3,542$1.01M0.19%+3,542New
Trail Ridge Investment Advisors, LLC3,532$1.01M0.62%+114+3.3%Added
Tower Research Capital LLC (TRC)3,526$1.00M0.03%+282+8.7%Added
Jefferies Financial Group Inc.3,469$988.1K0.02%−155−4.3%Reduced
Avidian Wealth Solutions, LLC3,404$969.6K0.06%+41+1.2%Added
ISAM Funds (UK) Ltd3,402$969.1K0.87%+3,402New
Bank of Hawaii3,390$965.6K0.05%+29+0.9%Added
Tiaa, FSB3,334$949.7K0.00%−370−10.0%Reduced
Liontrust Investment Partners LLP3,314$944.0K0.01%+598+22.0%Added
Pictet & Cie (Europe) SA3,306$941.7K0.03%−290−8.1%Reduced
Monetta Financial Services Inc3,300$940.0K0.92%00.0%Unchanged
Northwest Bank & Trust Co3,258$927.9K0.89%+3,258New
Horizon Kinetics Asset Management LLC3,250$925.8K0.02%00.0%Unchanged
Massachusetts Wealth Management3,250$925.8K0.89%+175+5.7%Added
Three Bridge Wealth Advisors, LLC3,248$925.2K0.39%−277−7.9%Reduced
Investment House LLC3,236$921.8K0.07%−424−11.6%Reduced
Advanced Portfolio Management, LLC3,149$897.0K0.82%+3,149New
Cim Investment Mangement Inc3,148$896.7K0.31%+22+0.7%Added
Peapack Gladstone Financial Corp3,146$895.0K0.02%+75+2.4%Added
Baker Tilly Wealth Management, LLC3,106$884.7K0.09%+28+0.9%Added
Autumn Glory Partners, LLC3,102$883.6K0.65%+3,102New
Scott Investment Partners LLP3,100$883.0K1.99%00.0%Unchanged
Cerity Partners LLC3,086$878.9K0.00%+1,344+77.2%Added
Fernwood Investment Management, LLC3,080$877.3K0.31%−100−3.1%Reduced
E Fund Management Co., Ltd.3,072$875.0K0.07%−365−10.6%Reduced
GWM Advisors LLC3,053$869.6K0.01%+745+32.3%Added
Forum Financial Management, LP3,042$866.5K0.02%00.0%Unchanged
Kestra Advisory Services, LLC3,029$862.8K0.01%+750+32.9%Added
Atria Wealth Solutions, Inc.3,009$857.1K0.01%+65+2.2%Added
Aquila Investment Management LLC3,000$854.5K0.70%00.0%Unchanged
Simplify Asset Management Inc.2,989$851.4K0.15%+2,989New
Trust Co of Toledo NA2,978$848.3K0.14%+1,108+59.3%Added
Tokio Marine Asset Management Co Ltd2,943$838.3K0.05%+174+6.3%Added
KCM Investment Advisors LLC2,919$831.5K0.03%00.0%Unchanged