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, Q4 2023
Institutional positions in Biogen Inc. as of Dec 31, 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
- 1,005
- +56 vs. Q3 2023
- Shares held
- 128.7M
- +4.02M (+3.2%) vs. Q3 2023
- Total value
- $33.3B
- +$1.22B (+3.8%) vs. Q3 2023
- New holders
- 137
- 287 more added
- Sold out
- 81
- 373 more reduced
17 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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.
| 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, Q4 2023
Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Primecap Management Co | 16,264,481 | $4.21B | 3.33% | +251,915+1.6% | Added |
| Vanguard Group Inc | 14,407,330 | $3.73B | 0.08% | +2,218,744+18.2% | Added |
| BlackRock Inc. | 14,246,658 | $3.69B | 0.09% | +272,071+1.9% | Added |
| State Street Corp | 6,945,665 | $1.80B | 0.09% | +80,011+1.2% | Added |
| T. Rowe Price Investment Management, Inc. | 5,357,326 | $1.39B | 0.90% | +602,335+12.7% | Added |
| Wellington Management Group LLP | 5,324,396 | $1.38B | 0.26% | −49,914−0.9% | Reduced |
| JPMorgan Chase & Co | 5,072,640 | $1.31B | 0.13% | +86,888+1.7% | Added |
| Geode Capital Management, LLC | 3,309,317 | $854.1M | 0.09% | +72,430+2.2% | Added |
| Invesco Ltd. | 1,814,666 | $469.6M | 0.11% | +633,292+53.6% | Added |
| Clearbridge Investments, LLC | 1,679,302 | $434.6M | 0.37% | −143,880−7.9% | Reduced |
| Morgan Stanley | 1,577,777 | $408.3M | 0.04% | +84,664+5.7% | Added |
| Price T Rowe Associates Inc | 1,508,346 | $390.3M | 0.05% | +344,816+29.6% | Added |
| Northern Trust Corp | 1,494,963 | $386.9M | 0.07% | −148,072−9.0% | Reduced |
| Norges Bank | 1,463,571 | $378.7M | 0.07% | −65,525−4.3% | Reduced |
| Dimensional Fund Advisors LP | 1,424,659 | $368.7M | 0.11% | +43,444+3.1% | Added |
| Van Eck Associates Corp | 1,421,196 | $367.8M | 0.67% | +231,650+19.5% | Added |
| Bank of New York Mellon Corp | 1,389,698 | $359.6M | 0.07% | −40,434−2.8% | Reduced |
| Legal & General Group Plc | 1,325,096 | $342.9M | 0.11% | −13,982−1.0% | Reduced |
| Pictet Asset Management Holding SA | 1,257,959 | $325.5M | 0.36% | +45,477+3.8% | Added |
| Deutsche Bank AG | 1,189,890 | $307.9M | 0.16% | +253,408+27.1% | Added |
| Amundi | 1,201,706 | $307.4M | 0.14% | +108,182+9.9% | Added |
| Goldman Sachs Group Inc | 1,095,823 | $283.6M | 0.06% | +304,978+38.6% | Added |
| UBS Asset Management Americas Inc | 1,014,583 | $262.5M | 0.10% | −50,935−4.8% | Reduced |
| FMR LLC | 1,001,144 | $259.1M | 0.02% | −359,907−26.4% | Reduced |
| Beutel, Goodman & Co Ltd. | 995,456 | $257.6M | 1.37% | −3,820−0.4% | Reduced |
| American Century Companies Inc | 988,676 | $255.8M | 0.18% | +89,748+10.0% | Added |
| First Trust Advisors LP | 977,308 | $252.9M | 0.28% | +571,795+141.0% | Added |
| Charles Schwab Investment Management Inc | 849,000 | $219.7M | 0.06% | +3100.0% | Added |
| OrbiMed Advisors LLC | 827,600 | $214.2M | 4.29% | +270,800+48.6% | Added |
| Renaissance Technologies LLC | 758,606 | $196.3M | 0.30% | −327,791−30.2% | Reduced |
| Allianz Asset Management GmbH | 718,719 | $186.0M | 0.34% | −53,639−6.9% | Reduced |
| FIL Ltd | 656,502 | $169.9M | 0.18% | +593,158+936.4% | Added |
| Sarissa Capital Management LP | 643,000 | $166.4M | 25.64% | 00.0% | Unchanged |
| Massachusetts Financial Services Co | 580,065 | $150.1M | 0.05% | +133,463+29.9% | Added |
| Employees Provident Fund Board | 564,273 | $146.0M | 2.85% | +121,857+27.5% | Added |
| Ra Capital Management, L.P. | 532,892 | $137.9M | 2.15% | 00.0% | Unchanged |
| Barclays PLC | 532,260 | $137.7M | 0.07% | +136,584+34.5% | Added |
| Franklin Resources Inc | 498,349 | $129.0M | 0.06% | −130,185−20.7% | Reduced |
| Swiss National Bank | 452,900 | $117.2M | 0.09% | −12,700−2.7% | Reduced |
| AXA S.A. | 450,743 | $116.6M | 0.38% | +9,494+2.2% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 448,432 | $116.0M | 0.32% | −212,114−32.1% | Reduced |
| Nuveen Asset Management, LLC | 447,150 | $115.7M | 0.04% | −135,603−23.3% | Reduced |
| Standard Life Aberdeen plc | 437,075 | $113.1M | 0.25% | +307,532+237.4% | Added |
| Bank of America Corp | 426,574 | $110.4M | 0.01% | +72,481+20.5% | Added |
| Alyeska Investment Group, L.P. | 422,680 | $109.4M | 0.74% | −19,396−4.4% | Reduced |
| TD Asset Management Inc | 389,984 | $100.9M | 0.10% | +108,956+38.8% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 383,102 | $99.1M | 0.07% | +4,593+1.2% | Added |
| Palo Alto Investors LP | 380,417 | $98.4M | 8.87% | −865−0.2% | Reduced |
| Royal Bank of Canada | 374,014 | $96.8M | 0.02% | +67,460+22.0% | Added |
| California Public Employees Retirement System | 363,209 | $94.0M | 0.07% | +82,046+29.2% | Added |
| Carmignac Gestion | 361,395 | $93.5M | 1.57% | +52,295+16.9% | Added |
| Parnassus Investments | 360,742 | $93.3M | 0.21% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 355,808 | $92.1M | 0.19% | +294,913+484.3% | Added |
| UBS Group AG | 338,354 | $87.6M | 0.04% | −81,444−19.4% | Reduced |
| HSBC Holdings PLC | 325,608 | $84.2M | 0.08% | +52,974+19.4% | Added |
| Credit Suisse AG | 318,421 | $82.4M | 0.08% | −30,290−8.7% | Reduced |
| Balyasny Asset Management LLC | 317,302 | $82.1M | 0.23% | +86,891+37.7% | Added |
| National Pension Service | 302,317 | $78.2M | 0.11% | +6,375+2.2% | Added |
| Polar Capital Holdings Plc | 300,000 | $77.6M | 0.54% | 00.0% | Unchanged |
| Bank of Montreal | 292,400 | $76.5M | 0.04% | +85,557+41.4% | Added |
| Robeco Institutional Asset Management B.V. | 293,540 | $76.0M | 0.18% | −48,270−14.1% | Reduced |
| DekaBank Deutsche Girozentrale | 283,268 | $73.3M | 0.15% | −861−0.3% | Reduced |
| Rhumbline Advisers | 278,047 | $72.0M | 0.08% | −505−0.2% | Reduced |
| Epoch Investment Partners, Inc. | 277,224 | $71.7M | 0.33% | +91,178+49.0% | Added |
| Erste Asset Management GmbH | 274,912 | $71.3M | 1.04% | +283+0.1% | Added |
| Thrivent Financial for Lutherans | 259,357 | $67.1M | 0.15% | −21,290−7.6% | Reduced |
| Macquarie Group Ltd | 255,115 | $66.0M | 0.08% | −17,992−6.6% | Reduced |
| Envestnet Asset Management Inc | 236,451 | $61.2M | 0.03% | −62,600−20.9% | Reduced |
| Wells Fargo & Company | 231,451 | $59.9M | 0.02% | +16,778+7.8% | Added |
| Alliancebernstein L.P. | 229,813 | $59.5M | 0.02% | −21,691−8.6% | Reduced |
| California State Teachers Retirement System | 226,422 | $58.6M | 0.08% | +890.0% | Added |
| Citigroup Inc | 220,653 | $57.1M | 0.08% | −1,105−0.5% | Reduced |
| National Bank of Canada | 201,275 | $53.9M | 0.10% | +84,284+72.0% | Added |
| Jane Street Group, LLC | 204,688 | $53.0M | 0.06% | +157,834+336.9% | Added |
| Ameriprise Financial Inc | 202,487 | $52.4M | 0.02% | −15,878−7.3% | Reduced |
| Armistice Capital, LLC | 200,000 | $51.8M | 1.37% | −76,788−27.7% | Reduced |
| BNP Paribas Arbitrage, SA | 197,602 | $51.1M | 0.09% | +34,081+20.8% | Added |
| Candriam Luxembourg S.C.A. | 185,285 | $47.9M | 0.33% | −48,674−20.8% | Reduced |
| Korea Investment CORP | 175,795 | $45.5M | 0.12% | +31,659+22.0% | Added |
| Brown Advisory Inc | 171,304 | $44.3M | 0.06% | +2,282+1.4% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 169,381 | $43.8M | 0.17% | −45,019−21.0% | Reduced |
| Principal Financial Group Inc | 164,533 | $42.6M | 0.03% | −3,142−1.9% | Reduced |
| Saratoga Research & Investment Management | 164,226 | $42.5M | 1.96% | −11,838−6.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 160,724 | $41.6M | 0.08% | −3,719−2.3% | Reduced |
| Krensavage Asset Management, LLC | 160,480 | $41.5M | 14.73% | 00.0% | Unchanged |
| Bank of Nova Scotia | 160,263 | $41.5M | 0.08% | +130,169+432.5% | Added |
| Lord, Abbett & Co. LLC | 159,399 | $41.2M | 0.14% | −1,966−1.2% | Reduced |
| State Board of Administration of Florida Retirement System | 159,321 | $41.2M | 0.09% | −744−0.5% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 149,428 | $39.4M | 0.07% | +7,683+5.4% | Added |
| Storebrand Asset Management AS | 147,088 | $38.1M | 0.14% | −406−0.3% | Reduced |
| Great West Life Assurance Co | 145,643 | $37.5M | 0.08% | −16,518−10.2% | Reduced |
| ProShare Advisors LLC | 144,110 | $37.3M | 0.11% | −24,291−14.4% | Reduced |
| Bridgewater Associates, LP | 143,286 | $37.1M | 0.21% | −7,591−5.0% | Reduced |
| Raymond James & Associates | 142,076 | $36.8M | 0.03% | −10,184−6.7% | Reduced |
| Nordea Investment Management AB | 136,730 | $35.4M | 0.04% | −81,258−37.3% | Reduced |
| New York State Teachers Retirement System | 135,449 | $35.0M | 0.08% | −7,609−5.3% | Reduced |
| Manufacturers Life Insurance Company, The | 135,176 | $35.0M | 0.02% | +6,980+5.4% | Added |
| Hudson Bay Capital Management LP | 135,000 | $34.9M | 0.31% | +52,500+63.6% | Added |
| Victory Capital Management Inc | 131,148 | $33.9M | 0.04% | −2,982−2.2% | Reduced |
| Railway Pension Investments Ltd | 127,722 | $33.1M | 0.34% | 00.0% | Unchanged |