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; 1,046 institutions reported holding it in 13F filings for Q2 2026, worth $30.7B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Biogen Inc. as of Jun 30, 2026. 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
- 1,046
- +42 vs. Q1 2026
- Shares held
- 142.3M
- +7.45M (+5.5%) vs. Q1 2026
- Total value
- $30.7B
- +$6.00B (+24.3%) vs. Q1 2026
- New holders
- 126
- 427 more added
- Sold out
- 84
- 296 more reduced
11 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | 1,046 | $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 2026
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Omers Administration Corp | 23,421 | $5.06M | 0.03% | +3,272+16.2% | Added |
| China Universal Asset Management Co., Ltd. | 23,497 | $5.08M | 0.30% | −2,547−9.8% | Reduced |
| Guggenheim Capital LLC | 23,587 | $5.10M | 0.03% | −2,795−10.6% | Reduced |
| NEOS Investment Management LLC | 23,734 | $5.13M | 0.02% | +2,894+13.9% | Added |
| NorthCrest Asset Manangement, LLC | 25,857 | $5.14M | 0.13% | +845+3.4% | Added |
| CAPROCK Group, Inc. | 23,824 | $5.15M | 0.10% | −1,827−7.1% | Reduced |
| Hillman Capital Management, Inc. | 23,993 | $5.18M | 3.75% | −5,547−18.8% | Reduced |
| Mubadala Investment Co PJSC | 24,083 | $5.20M | 0.01% | +24,083 | New |
| Rakuten Investment Management, Inc. | 24,097 | $5.22M | 0.02% | +2,319+10.6% | Added |
| Public Sector Pension Investment Board | 24,211 | $5.23M | 0.01% | +419+1.8% | Added |
| Colony Group, LLC | 24,689 | $5.33M | 0.01% | +3,707+17.7% | Added |
| Old North State Wealth Management, LLC | 24,720 | $5.34M | 2.28% | +125+0.5% | Added |
| Amalgamated Bank | 25,842 | $5.58M | 0.04% | −3,920−13.2% | Reduced |
| Jefferies Financial Group Inc. | 27,463 | $5.93M | 0.05% | +5,561+25.4% | Added |
| Xponance, Inc. | 27,821 | $6.01M | 0.04% | +1,365+5.2% | Added |
| Systematic Financial Management LP | 27,975 | $6.04M | 0.12% | +11,755+72.5% | Added |
| Baader Bank INC | 28,568 | $6.17M | 0.50% | −2,233−7.2% | Reduced |
| Jones Financial Companies LLLP | 28,667 | $6.19M | 0.00% | +4,113+16.8% | Added |
| Daiwa Securities Group Inc. | 29,009 | $6.27M | 0.01% | +1,873+6.9% | Added |
| Rafferty Asset Management, LLC | 30,461 | $6.58M | 0.01% | −4,557−13.0% | Reduced |
| Verition Fund Management LLC | 30,914 | $6.68M | 0.05% | +30,914 | New |
| Retirement Systems of Alabama | 31,015 | $6.70M | 0.02% | −151−0.5% | Reduced |
| DnB Asset Management AS | 31,221 | $6.75M | 0.02% | 00.0% | Unchanged |
| Leuthold Group, LLC | 31,489 | $6.80M | 0.68% | −1,654−5.0% | Reduced |
| Oversea-Chinese Banking CORP Ltd | 31,867 | $6.89M | 0.16% | −5,598−14.9% | Reduced |
| Federation des caisses Desjardins du Quebec | 31,948 | $6.90M | 0.02% | +12,367+63.2% | Added |
| US Bancorp | 32,597 | $7.04M | 0.01% | +1,374+4.4% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 32,609 | $7.05M | 0.03% | −1,577−4.6% | Reduced |
| Fifth Third Bancorp | 32,841 | $7.10M | 0.01% | +125+0.4% | Added |
| Swiss Life Asset Management Ltd | 33,311 | $7.20M | 0.03% | +2,023+6.5% | Added |
| Insight Wealth Strategies, LLC | 34,320 | $7.20M | 0.70% | +4,974+16.9% | Added |
| CIBC Bancorp USA Inc. | 33,539 | $7.25M | 0.01% | −8,363−20.0% | Reduced |
| Korea Investment CORP | 33,574 | $7.25M | 0.01% | −40,414−54.6% | Reduced |
| Mercer Global Advisors Inc | 33,731 | $7.29M | 0.01% | −4,869−12.6% | Reduced |
| MetLife Investment Management | 33,770 | $7.30M | 0.03% | −509−1.5% | Reduced |
| Grimes & Company, Inc. | 33,877 | $7.32M | 0.16% | −807−2.3% | Reduced |
| Ritholtz Wealth Management | 34,283 | $7.41M | 0.11% | −660−1.9% | Reduced |
| Calamos Advisors LLC | 34,879 | $7.54M | 0.03% | −648−1.8% | Reduced |
| CIBC Asset Management Inc | 35,021 | $7.57M | 0.02% | −175−0.5% | Reduced |
| ProShare Advisors LLC | 35,127 | $7.59M | 0.01% | −799−2.2% | Reduced |
| Zurich Insurance Group Ltd | 35,169 | $7.60M | 0.05% | +35,169 | New |
| Generali Asset Management SPA SGR | 35,374 | $7.64M | 0.14% | +1,180+3.5% | Added |
| Nisa Investment Advisors, LLC | 35,577 | $7.69M | 0.02% | −243−0.7% | Reduced |
| IFM Investors Pty Ltd | 36,263 | $7.83M | 0.05% | −2,258−5.9% | Reduced |
| JustInvest LLC | 37,015 | $8.00M | 0.07% | +602+1.7% | Added |
| Nykredit A/S | 37,134 | $8.02M | 0.03% | +37,134 | New |
| Ensign Peak Advisors, Inc | 37,354 | $8.07M | 0.01% | +3,644+10.8% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 37,631 | $8.13M | 0.05% | −4,840−11.4% | Reduced |
| CWA Asset Management Group, LLC | 38,127 | $8.24M | 0.25% | +3,297+9.5% | Added |
| Wealth Enhancement Advisory Services, LLC | 67,338 | $8.27M | 0.01% | +4,808+7.7% | Added |
| Schroder Investment Management Group | 38,648 | $8.35M | 0.01% | −20,180−34.3% | Reduced |
| Polymer Capital Management (HK) LTD | 38,665 | $8.35M | 0.85% | +38,665 | New |
| Ossiam | 39,223 | $8.47M | 0.11% | −1,737−4.2% | Reduced |
| State of Tennessee, Treasury Department | 39,265 | $8.48M | 0.03% | 00.0% | Unchanged |
| ASR Vermogensbeheer N.V. | 39,360 | $8.50M | 0.09% | +38,760+6,460.0% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 39,403 | $8.51M | 0.04% | +100+0.3% | Added |
| Orion Investment Co | 39,571 | $8.55M | 2.50% | −39−0.1% | Reduced |
| Stifel Financial Corp | 40,536 | $8.76M | 0.01% | −402−1.0% | Reduced |
| The PNC Financial Services Group, Inc. | 41,119 | $8.88M | 0.00% | +1,635+4.1% | Added |
| Czech National Bank | 42,023 | $9.08M | 0.05% | +2,054+5.1% | Added |
| Natixis Advisors, L.P. | 42,052 | $9.09M | 0.01% | +780+1.9% | Added |
| Arizona State Retirement System | 42,077 | $9.09M | 0.05% | +2,214+5.6% | Added |
| Mn Services Vermogensbeheer B.V. | 42,300 | $9.14M | 0.07% | +19,000+81.5% | Added |
| CI Private Wealth, LLC | 42,397 | $9.16M | 0.01% | +5,445+14.7% | Added |
| USS Investment Management Ltd | 43,517 | $9.40M | 0.04% | +6,300+16.9% | Added |
| Generali Investments CEE, investicni spolecnost, a.s. | 43,552 | $9.41M | 0.45% | 00.0% | Unchanged |
| State of Michigan Retirement System | 43,603 | $9.42M | 0.04% | +600+1.4% | Added |
| Resona Asset Management Co.,Ltd. | 43,699 | $9.45M | 0.04% | −2,562−5.5% | Reduced |
| Contravisory Investment Management, Inc. | 44,329 | $9.58M | 1.69% | −348−0.8% | Reduced |
| Toronto Dominion Bank | 44,752 | $9.67M | 0.02% | +1,381+3.2% | Added |
| Public Employees Retirement System of Ohio | 45,608 | $9.85M | 0.03% | −454−1.0% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 46,265 | $10.0M | 0.04% | −1,542−3.2% | Reduced |
| Picton Mahoney Asset Management | 46,536 | $10.1M | 0.09% | +46,536 | New |
| HighTower Advisors, LLC | 47,099 | $10.2M | 0.01% | −2,752−5.5% | Reduced |
| Dakota Wealth Management | 47,326 | $10.2M | 0.20% | +1,739+3.8% | Added |
| Nomura Asset Management International Inc. | 47,407 | $10.2M | 0.02% | +74+0.2% | Added |
| State of New Jersey Common Pension Fund D | 47,453 | $10.3M | 0.03% | −2,684−5.4% | Reduced |
| SEB Asset Management AB | 47,975 | $10.4M | 0.04% | +6,106+14.6% | Added |
| Silverarc Capital Management, LLC | 48,101 | $10.4M | 1.16% | −2,866−5.6% | Reduced |
| Tredje AP-fonden | 48,138 | $10.4M | 0.05% | +1,768+3.8% | Added |
| Privium Fund Management B.V. | 48,400 | $10.5M | 1.92% | +4,600+10.5% | Added |
| QRG Capital Management, Inc. | 48,819 | $10.5M | 0.09% | +15,817+47.9% | Added |
| Martingale Asset Management L P | 49,930 | $10.8M | 0.26% | +13,195+35.9% | Added |
| Ethic Inc. | 50,034 | $10.8M | 0.13% | +2,741+5.8% | Added |
| Andra AP-fonden | 50,100 | $10.8M | 0.12% | −1,900−3.7% | Reduced |
| North Growth Management Ltd. | 50,000 | $10.8M | 1.39% | +15,000+42.9% | Added |
| Gateway Investment Advisers LLC | 51,023 | $11.0M | 0.11% | +100+0.2% | Added |
| Sector Gamma AS | 54,163 | $11.7M | 2.54% | −35,933−39.9% | Reduced |
| Nomura Asset Management Co Ltd | 54,960 | $11.9M | 0.03% | −8,018−12.7% | Reduced |
| Edmond de Rothschild Holding S.A. | 56,064 | $12.1M | 0.16% | −906−1.6% | Reduced |
| Lazard Asset Management LLC | 57,071 | $12.3M | 0.02% | +40,136+237.0% | Added |
| TD Asset Management Inc | 57,805 | $12.5M | 0.01% | −69,463−54.6% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 58,746 | $12.7M | 0.02% | +18,508+46.0% | Added |
| Cresset Asset Management, LLC | 61,258 | $13.2M | 0.05% | −6,245−9.3% | Reduced |
| OrbiMed Advisors LLC | 61,600 | $13.3M | 0.25% | 00.0% | Unchanged |
| Credit Agricole S A | 61,853 | $13.4M | 0.03% | +38,868+169.1% | Added |
| HealthInvest Partners AB | 62,781 | $13.6M | 3.65% | +62,781 | New |
| Toroso Investments, LLC | 63,842 | $13.8M | 0.03% | +5,256+9.0% | Added |
| Asset Management One Co.,Ltd. | 64,120 | $13.9M | 0.04% | +200.0% | Added |
| Royal London Asset Management Ltd | 64,751 | $14.0M | 0.03% | +485+0.8% | Added |