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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,047 | $30.7B |
| Q1 2026 | 1,015 | $24.7B |
| Q4 2025 | 1,002 | $24.6B |
| Q3 2025 | 909 | $18.4B |
| Q2 2025 | 867 | $16.3B |
| Q1 2025 | 882 | $17.7B |
| Q4 2024 | 879 | $20.2B |
| Q3 2024 | 921 | $25.1B |
| Q2 2024 | 947 | $29.9B |
| Q1 2024 | 955 | $28.0B |
| Q4 2023 | 1,005 | $33.3B |
| Q3 2023 | 966 | $32.2B |
| Q2 2023 | 1,009 | $36.1B |
| Q1 2023 | 1,004 | $35.0B |
| Q4 2022 | 1,033 | $34.6B |
| Q3 2022 | 987 | $33.0B |
| Q2 2022 | 930 | $25.0B |
| Q1 2022 | 954 | $25.9B |
| Q4 2021 | 1,014 | $29.7B |
| Q3 2021 | 1,044 | $35.1B |
| Q2 2021 | 1,107 | $43.6B |
| Q1 2021 | 1,096 | $35.7B |
Institutions, Q2 2021
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wellington Management Group LLP | 5,601,861 | $1.94B | 0.32% | −300,980−5.1% | Reduced |
| State Street Corp | 6,680,040 | $2.31B | 0.12% | +7,507+0.1% | Added |
| Vanguard Group Inc | 11,753,333 | $4.07B | 0.10% | −100,325−0.8% | Reduced |
| BlackRock Inc. | 13,206,591 | $4.57B | 0.13% | −296,037−2.2% | Reduced |
| Primecap Management Co | 16,458,506 | $5.70B | 3.83% | −299,750−1.8% | Reduced |
| Sofos Investments, Inc. | 37 | – | – | −5−11.9% | Reduced |
| Westside Investment Management, Inc. | 1,500 | – | – | −540−26.5% | Reduced |
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 0 | $0 | 0.00% | −643,022−100.0% | Sold out |
| Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf) | 0 | $0 | 0.00% | −603,890−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −310,000−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −170,620−100.0% | Sold out |
| Redmile Group, LLC | 0 | $0 | 0.00% | −162,847−100.0% | Sold out |
| Todd Asset Management LLC | 0 | $0 | 0.00% | −69,793−100.0% | Sold out |
| Jennison Associates LLC | 0 | $0 | 0.00% | −65,838−100.0% | Sold out |
| SG3 Management, LLC | 0 | $0 | 0.00% | −31,330−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −26,125−100.0% | Sold out |
| PGGM Investments | 0 | $0 | 0.00% | −22,570−100.0% | Sold out |
| Contrarius Investment Management Ltd | 0 | $0 | 0.00% | −17,224−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −15,291−100.0% | Sold out |
| Stansberry Asset Management, LLC | 0 | $0 | 0.00% | −12,663−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −11,138−100.0% | Sold out |
| Capitolis Advisors LLC | 0 | $0 | 0.00% | −9,291−100.0% | Sold out |
| Alaska Permanent Fund Corp | 0 | $0 | 0.00% | −8,200−100.0% | Sold out |
| Fiera Capital Corp | 0 | $0 | 0.00% | −7,081−100.0% | Sold out |
| Fairfield, Bush & Co. | 0 | $0 | 0.00% | −7,000−100.0% | Sold out |
| Azzad Asset Management Inc | 0 | $0 | 0.00% | −6,411−100.0% | Sold out |
| MUFG Securities EMEA plc | 0 | $0 | 0.00% | −6,395−100.0% | Sold out |
| Berry Street Capital Management LLP | 0 | $0 | 0.00% | −6,250−100.0% | Sold out |
| Summit Global Investments | 0 | $0 | 0.00% | −5,950−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| ARGA Investment Management, LP | 0 | $0 | 0.00% | −4,455−100.0% | Sold out |
| L2 Asset Management, LLC | 0 | $0 | 0.00% | −4,294−100.0% | Sold out |
| Baxter Bros Inc | 0 | $0 | 0.00% | −4,170−100.0% | Sold out |
| Signet Financial Management, LLC | 0 | $0 | 0.00% | −4,119−100.0% | Sold out |
| Laurion Capital Management LP | 0 | $0 | 0.00% | −4,039−100.0% | Sold out |
| Wealth Enhancement Advisory Services, LLC | 0 | $0 | 0.00% | −4,048−100.0% | Sold out |
| Koss-Olinger Consulting, LLC | 0 | $0 | 0.00% | −3,608−100.0% | Sold out |
| American Financial Group Inc | 0 | $0 | 0.00% | −3,500−100.0% | Sold out |
| Maven Securities LTD | 0 | $0 | 0.00% | −3,495−100.0% | Sold out |
| Sepio Capital, LP | 0 | $0 | 0.00% | −3,407−100.0% | Sold out |
| Seven Eight Capital, LP | 0 | $0 | 0.00% | −3,760−100.0% | Sold out |
| Bangor Savings Bank | 0 | $0 | 0.00% | −2,709−100.0% | Sold out |
| Bryn Mawr Trust Co | 0 | $0 | 0.00% | −2,612−100.0% | Sold out |
| Clarus Wealth Advisors | 0 | $0 | 0.00% | −2,540−100.0% | Sold out |
| Change Path, LLC | 0 | $0 | 0.00% | −2,321−100.0% | Sold out |
| Knights of Columbus Asset Advisors LLC | 0 | $0 | 0.00% | −2,274−100.0% | Sold out |
| Obermeyer Wood Investment Counsel, LLLP | 0 | $0 | 0.00% | −2,028−100.0% | Sold out |
| Paloma Partners Management Co | 0 | $0 | 0.00% | −1,830−100.0% | Sold out |
| Phoenix Holdings Ltd. | 0 | $0 | 0.00% | −1,849−100.0% | Sold out |
| Allen Capital Group, LLC | 0 | $0 | 0.00% | −1,803−100.0% | Sold out |
| Interchange Capital Partners, LLC | 0 | $0 | 0.00% | −1,024−100.0% | Sold out |
| Strategic Investment Advisors | 0 | $0 | 0.00% | −1,694−100.0% | Sold out |
| Moneta Group Investment Advisors LLC | 0 | $0 | 0.00% | −1,659−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −1,611−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −1,589−100.0% | Sold out |
| Stevens Capital Management LP | 0 | $0 | 0.00% | −1,532−100.0% | Sold out |
| Monetary Management Group Inc | 0 | $0 | 0.00% | −1,475−100.0% | Sold out |
| Sowell Financial Services LLC | 0 | $0 | 0.00% | −1,465−100.0% | Sold out |
| Carl P. Sherr & Co., LLC | 0 | $0 | 0.00% | −1,376−100.0% | Sold out |
| Voya Financial Advisors, Inc. | 0 | $0 | 0.00% | −1,349−100.0% | Sold out |
| Hilltop Holdings Inc. | 0 | $0 | 0.00% | −1,222−100.0% | Sold out |
| Wealth Advisory Solutions, LLC | 0 | $0 | 0.00% | −1,219−100.0% | Sold out |
| Financial Architects, Inc | 0 | $0 | 0.00% | −1,206−100.0% | Sold out |
| Aveo Capital Partners, LLC | 0 | $0 | 0.00% | −1,175−100.0% | Sold out |
| Buckley Wealth Management, LLC | 0 | $0 | 0.00% | −1,170−100.0% | Sold out |
| Agf Investments Inc. | 0 | $0 | 0.00% | −1,101−100.0% | Sold out |
| BKD Wealth Advisors, LLC | 0 | $0 | 0.00% | −1,093−100.0% | Sold out |
| E&G Advisors, LP | 0 | $0 | 0.00% | −1,050−100.0% | Sold out |
| Plimoth Trust Co LLC | 0 | $0 | 0.00% | −1,010−100.0% | Sold out |
| Alethea Capital Management, LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Csenge Advisory Group | 0 | $0 | 0.00% | −1,028−100.0% | Sold out |
| XR Securities LLC | 0 | $0 | 0.00% | −927−100.0% | Sold out |
| Appleton Partners Inc | 0 | $0 | 0.00% | −910−100.0% | Sold out |
| Montecito Bank & Trust | 0 | $0 | 0.00% | −911−100.0% | Sold out |
| Charter Trust Co | 0 | $0 | 0.00% | −885−100.0% | Sold out |
| Legacy Capital Partners, Inc. | 0 | $0 | 0.00% | −878−100.0% | Sold out |
| Bel Air Investment Advisors LLC | 0 | $0 | 0.00% | −867−100.0% | Sold out |
| Howland Capital Management LLC | 0 | $0 | 0.00% | −800−100.0% | Sold out |
| Mizuho Markets Cayman LP | 0 | $0 | 0.00% | −786−100.0% | Sold out |
| Oakworth Capital, Inc. | 0 | $0 | 0.00% | −765−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −759−100.0% | Sold out |
| Golden State Wealth Management, LLC | 0 | $0 | 0.00% | −736−100.0% | Sold out |
| Lebenthal Global Advisors, LLC | 0 | $0 | 0.00% | −728−100.0% | Sold out |
| Kings Point Capital Management | 0 | $0 | 0.00% | −510−100.0% | Sold out |
| Mizuho Securities Co. Ltd. | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Islay Capital Management, LLC | 0 | $0 | 0.00% | −466−100.0% | Sold out |
| Highlander Capital Management, LLC | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Abundance Wealth Counselors | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Allred Capital Management, LLC | 0 | $0 | 0.00% | −299−100.0% | Sold out |
| TFC Financial Management | 0 | $0 | 0.00% | −246−100.0% | Sold out |
| Certified Advisory Corp | 0 | $0 | 0.00% | −228−100.0% | Sold out |
| Sage Financial Management Group, Inc. | 0 | $0 | 0.00% | −224−100.0% | Sold out |
| Piscataqua Savings Bank | 0 | $0 | 0.00% | −165−100.0% | Sold out |
| Grandview Asset Management LLC | 0 | $0 | 0.00% | −151−100.0% | Sold out |
| Total Clarity Wealth Management, Inc. | 0 | $0 | 0.00% | −135−100.0% | Sold out |
| Prime Capital Investment Advisors, LLC | 0 | $0 | 0.00% | −93−100.0% | Sold out |
| Sun Life Financial INC | 0 | $0 | 0.00% | −91−100.0% | Sold out |
| Fiduciary Planning LLC | 0 | $0 | 0.00% | −84−100.0% | Sold out |
| RWM Asset Management, LLC | 0 | $0 | 0.00% | −84−100.0% | Sold out |
| Valley Brook Capital Group | 0 | $0 | 0.00% | −75−100.0% | Sold out |