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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 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: 1,047 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 20261,047$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 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
SeaCrest Wealth Management, LLC2,294$794.0K0.10%+2,294New
Dakota Wealth Management2,290$793.0K0.10%00.0%Unchanged
Pictet & Cie (Europe) SA2,269$786.0K0.03%−220−8.8%Reduced
Telemus Capital, LLC2,267$785.0K0.06%−241−9.6%Reduced
Intercontinental Wealth Advisors, LLC2,255$781.0K0.15%+113+5.3%Added
AMG National Trust Bank2,251$780.0K0.03%+2,251New
Cape Ann Savings Bank2,249$778.0K0.49%−698−23.7%Reduced
Ritholtz Wealth Management2,239$775.0K0.06%+702+45.7%Added
Baker Tilly Wealth Management, LLC2,230$772.0K0.12%+259+13.1%Added
Ethic Inc.2,199$761.0K0.09%−170−7.2%Reduced
Regal Investment Advisors LLC2,188$758.0K0.08%+2,188New
Absher Wealth Management, LLC2,177$754.0K0.13%+233+12.0%Added
First Hawaiian Bank2,174$753.0K0.03%+223+11.4%Added
Parallel Advisors, LLC2,170$751.0K0.03%+197+10.0%Added
ETF Managers Group, LLC2,147$742.0K0.01%+2,147New
Flputnam Investment Management Co2,141$741.0K0.03%+930+76.8%Added
Heritage Wealth Advisors2,122$734.8K0.05%−60−2.7%Reduced
Forbes J M & Co LLP2,116$733.0K0.09%−5−0.2%Reduced
HBK Sorce Advisory LLC2,113$732.0K0.04%+304+16.8%Added
Greenleaf Trust2,103$728.0K0.01%−182−8.0%Reduced
Lumina Fund Management LLC2,100$727.0K0.35%−1,000−32.3%Reduced
Mercer Capital Advisers, Inc.2,100$727.0K0.36%+1,500+250.0%Added
Mitchell & Pahl Private Wealth, LLC2,067$716.0K0.51%−19−0.9%Reduced
Johnson Investment Counsel Inc2,063$714.0K0.01%−47−2.2%Reduced
Steward Partners Investment Advisory, LLC2,051$710.0K0.01%−718−25.9%Reduced
Hennion & Walsh Asset Management, Inc.2,017$698.0K0.04%−338−14.4%Reduced
Gladstone Institutional Advisory LLC1,997$692.0K0.08%+1,997New
Icon Wealth Partners, LLC1,993$690.0K0.07%−416−17.3%Reduced
Fort, L.P.1,980$686.0K0.20%−1,226−38.2%Reduced
Echo Street Capital Management LLC1,912$662.0K0.01%−658−25.6%Reduced
Factorial Partners, LLC1,900$658.0K0.44%−7,300−79.3%Reduced
Brookfield Asset Management Inc.1,885$653.0K0.00%+1,885New
Avestar Capital, LLC1,880$651.0K0.13%−116−5.8%Reduced
Seizert Capital Partners, LLC1,873$649.0K0.03%−116,059−98.4%Reduced
Centiva Capital, LP1,872$648.0K0.05%+1,872New
Intersect Capital LLC1,839$637.0K0.11%+375+25.6%Added
CSS LLC1,832$634.0K0.03%−9,289−83.5%Reduced
CIBC Private Wealth Group, LLC1,824$632.0K0.00%−15−0.8%Reduced
Stratos Wealth Advisors, LLC1,824$632.0K0.06%+429+30.8%Added
Heron Financial Group, LLC1,817$629.0K0.36%00.0%Unchanged
Kestra Private Wealth Services, LLC1,775$615.0K0.04%−522−22.7%Reduced
IHT Wealth Management, LLC1,736$601.0K0.04%+846+95.1%Added
O'Neil Global Advisors, Inc.1,730$599.0K0.19%+1,730New
Plancorp, LLC1,703$590.0K0.05%+27+1.6%Added
Cornell Pochily Investment Advisors, Inc.1,704$590.0K0.26%+115+7.2%Added
Arabesque Asset Management Ltd1,700$589.0K0.25%+1,700New
Columbia Asset Management1,680$582.0K0.13%+1,680New
McGuire Investment Group, LLC1,670$578.0K0.11%−1,659−49.8%Reduced
Hillsdale Investment Management Inc.1,650$571.0K0.05%+1,650New
Duff & Phelps Investment Management Co1,630$564.0K0.01%−120−6.9%Reduced
Indie Asset Partners, LLC1,629$564.0K0.46%−50−3.0%Reduced
Kendall Capital Management1,625$563.0K0.32%−50−3.0%Reduced
Hotchkis & Wiley Capital Management LLC1,600$554.0K0.00%−197,311−99.2%Reduced
Systematic Financial Management LP1,600$554.0K0.02%00.0%Unchanged
Capital Wealth Planning, LLC1,598$553.0K0.02%+164+11.4%Added
Jacobi Capital Management LLC1,587$550.0K0.07%−240−13.1%Reduced
Ieq Capital, LLC1,586$549.0K0.02%+343+27.6%Added
Choate Investment Advisors1,576$546.0K0.03%+420+36.3%Added
Analyst IMS Investment Management Services Ltd.1,572$544.0K0.07%−680−30.2%Reduced
Baystate Wealth Management LLC1,564$542.0K0.05%−537−25.6%Reduced
Clarius Group, LLC1,557$539.0K0.05%−21−1.3%Reduced
Crescent Grove Advisors, LLC1,556$539.0K0.06%+56+3.7%Added
Avidian Wealth Solutions, LLC1,556$539.0K0.04%+155+11.1%Added
Arkadios Wealth Advisors1,543$534.0K0.07%+334+27.6%Added
Pendal Group Limited1,538$533.0K0.00%−11,805−88.5%Reduced
Twin Capital Management Inc1,529$529.0K0.05%00.0%Unchanged
Avantax Advisory Services, Inc.1,527$528.0K0.01%+1,527New
Tredje AP-fonden1,500$519.0K0.01%−18,778−92.6%Reduced
Supplemental Annuity Collective Trust of NJ1,500$519.0K0.17%00.0%Unchanged
Platform Technology Partners1,486$515.0K0.21%+1,486New
KB Financial Partners, LLC1,462$506.0K0.19%+1,457+29,140.0%Added
Trust Asset Management LLC1,452$503.0K0.07%+140+10.7%Added
Bowling Portfolio Management LLC1,437$498.0K0.11%−5,595−79.6%Reduced
Sentry Investment Management LLC1,426$494.0K0.13%−237−14.3%Reduced
Sippican Capital Advisors1,426$494.0K0.43%+75+5.6%Added
Carroll Financial Associates, Inc.1,427$494.0K0.03%+211+17.4%Added
Geneos Wealth Management Inc.1,409$491.0K0.02%−2,179−60.7%Reduced
Parkside Financial Bank & Trust1,415$490.0K0.14%+12+0.9%Added
TCTC Holdings, LLC1,400$485.0K0.02%+1,400New
Eudaimonia Partners, LLC1,399$484.0K0.09%+5+0.4%Added
Diversified Trust Co1,389$481.0K0.02%−131−8.6%Reduced
ARS Wealth Advisors, LLC1,388$481.0K0.09%+54+4.0%Added
Transcend Wealth Collective, LLC1,387$480.0K0.07%+1,387New
Alexandria Capital, LLC1,382$479.0K0.04%00.0%Unchanged
Retirement Capital Strategies1,380$478.0K0.18%00.0%Unchanged
Probity Advisors, Inc.1,377$477.0K0.10%+50+3.8%Added
Holocene Advisors, LP1,370$474.0K0.00%+1,370New
Tokio Marine Asset Management Co Ltd1,362$472.0K0.04%+279+25.8%Added
Qci Asset Management Inc1,359$471.0K0.03%−67,439−98.0%Reduced
Private Trust Co NA1,358$470.0K0.07%−302−18.2%Reduced
Intrust Bank NA1,359$470.0K0.06%−122−8.2%Reduced
Ancora Advisors, LLC1,348$467.0K0.01%00.0%Unchanged
Ballentine Partners, LLC1,313$454.0K0.02%−97−6.9%Reduced
Quantitative Value Technologies, LLC1,294$448.0K0.74%−16−1.2%Reduced
BBR Partners, LLC1,287$446.0K0.04%−5−0.4%Reduced
Independent Advisor Alliance1,277$442.0K0.02%−25−1.9%Reduced
Boston Private Wealth LLC1,271$440.0K0.01%+71+5.9%Added
Humankind Investments LLC1,266$438.0K0.21%+425+50.5%Added
Ameritas Investment Company, LLC766$435.0K0.02%−1,296−62.9%Reduced
SkyView Investment Advisors, LLC1,550$434.0K0.20%00.0%Unchanged