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, 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 | 1,047 | $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, 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 |
|---|---|---|---|---|---|
| New York State Common Retirement Fund | 123,203 | $31.9M | 0.04% | −12,777−9.4% | Reduced |
| Russell Investments Group, Ltd. | 123,270 | $31.9M | 0.06% | −31,318−20.3% | Reduced |
| Prudential Financial Inc | 129,093 | $32.8M | 0.05% | −106,717−45.3% | Reduced |
| Wedge Capital Management L L P | 127,488 | $33.0M | 0.59% | +9,284+7.9% | Added |
| Railway Pension Investments Ltd | 127,722 | $33.1M | 0.34% | 00.0% | Unchanged |
| Victory Capital Management Inc | 131,148 | $33.9M | 0.04% | −2,982−2.2% | Reduced |
| Hudson Bay Capital Management LP | 135,000 | $34.9M | 0.31% | +52,500+63.6% | Added |
| Manufacturers Life Insurance Company, The | 135,176 | $35.0M | 0.02% | +6,980+5.4% | Added |
| New York State Teachers Retirement System | 135,449 | $35.0M | 0.08% | −7,609−5.3% | Reduced |
| Nordea Investment Management AB | 136,730 | $35.4M | 0.04% | −81,258−37.3% | Reduced |
| Raymond James & Associates | 142,076 | $36.8M | 0.03% | −10,184−6.7% | Reduced |
| Bridgewater Associates, LP | 143,286 | $37.1M | 0.21% | −7,591−5.0% | Reduced |
| ProShare Advisors LLC | 144,110 | $37.3M | 0.11% | −24,291−14.4% | Reduced |
| Great West Life Assurance Co | 145,643 | $37.5M | 0.08% | −16,518−10.2% | Reduced |
| Storebrand Asset Management AS | 147,088 | $38.1M | 0.14% | −406−0.3% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 149,428 | $39.4M | 0.07% | +7,683+5.4% | Added |
| State Board of Administration of Florida Retirement System | 159,321 | $41.2M | 0.09% | −744−0.5% | Reduced |
| Lord, Abbett & Co. LLC | 159,399 | $41.2M | 0.14% | −1,966−1.2% | Reduced |
| Bank of Nova Scotia | 160,263 | $41.5M | 0.08% | +130,169+432.5% | Added |
| Krensavage Asset Management, LLC | 160,480 | $41.5M | 14.73% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 160,724 | $41.6M | 0.08% | −3,719−2.3% | Reduced |
| Saratoga Research & Investment Management | 164,226 | $42.5M | 1.96% | −11,838−6.7% | Reduced |
| Principal Financial Group Inc | 164,533 | $42.6M | 0.03% | −3,142−1.9% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 169,381 | $43.8M | 0.17% | −45,019−21.0% | Reduced |
| Brown Advisory Inc | 171,304 | $44.3M | 0.06% | +2,282+1.4% | Added |
| Korea Investment CORP | 175,795 | $45.5M | 0.12% | +31,659+22.0% | Added |
| Candriam Luxembourg S.C.A. | 185,285 | $47.9M | 0.33% | −48,674−20.8% | Reduced |
| BNP Paribas Arbitrage, SA | 197,602 | $51.1M | 0.09% | +34,081+20.8% | Added |
| Armistice Capital, LLC | 200,000 | $51.8M | 1.37% | −76,788−27.7% | Reduced |
| Ameriprise Financial Inc | 202,487 | $52.4M | 0.02% | −15,878−7.3% | Reduced |
| Jane Street Group, LLC | 204,688 | $53.0M | 0.06% | +157,834+336.9% | Added |
| National Bank of Canada | 201,275 | $53.9M | 0.10% | +84,284+72.0% | Added |
| Citigroup Inc | 220,653 | $57.1M | 0.08% | −1,105−0.5% | Reduced |
| California State Teachers Retirement System | 226,422 | $58.6M | 0.08% | +890.0% | Added |
| Alliancebernstein L.P. | 229,813 | $59.5M | 0.02% | −21,691−8.6% | Reduced |
| Wells Fargo & Company | 231,451 | $59.9M | 0.02% | +16,778+7.8% | Added |
| Envestnet Asset Management Inc | 236,451 | $61.2M | 0.03% | −62,600−20.9% | Reduced |
| Macquarie Group Ltd | 255,115 | $66.0M | 0.08% | −17,992−6.6% | Reduced |
| Thrivent Financial for Lutherans | 259,357 | $67.1M | 0.15% | −21,290−7.6% | Reduced |
| Erste Asset Management GmbH | 274,912 | $71.3M | 1.04% | +283+0.1% | Added |
| Epoch Investment Partners, Inc. | 277,224 | $71.7M | 0.33% | +91,178+49.0% | Added |
| Rhumbline Advisers | 278,047 | $72.0M | 0.08% | −505−0.2% | Reduced |
| DekaBank Deutsche Girozentrale | 283,268 | $73.3M | 0.15% | −861−0.3% | Reduced |
| Robeco Institutional Asset Management B.V. | 293,540 | $76.0M | 0.18% | −48,270−14.1% | Reduced |
| Bank of Montreal | 292,400 | $76.5M | 0.04% | +85,557+41.4% | Added |
| Polar Capital Holdings Plc | 300,000 | $77.6M | 0.54% | 00.0% | Unchanged |
| National Pension Service | 302,317 | $78.2M | 0.11% | +6,375+2.2% | Added |
| Balyasny Asset Management LLC | 317,302 | $82.1M | 0.23% | +86,891+37.7% | Added |
| Credit Suisse AG | 318,421 | $82.4M | 0.08% | −30,290−8.7% | Reduced |
| HSBC Holdings PLC | 325,608 | $84.2M | 0.08% | +52,974+19.4% | Added |
| UBS Group AG | 338,354 | $87.6M | 0.04% | −81,444−19.4% | Reduced |
| Adage Capital Partners GP, L.L.C. | 355,808 | $92.1M | 0.19% | +294,913+484.3% | Added |
| Parnassus Investments | 360,742 | $93.3M | 0.21% | 00.0% | Unchanged |
| Carmignac Gestion | 361,395 | $93.5M | 1.57% | +52,295+16.9% | Added |
| California Public Employees Retirement System | 363,209 | $94.0M | 0.07% | +82,046+29.2% | Added |
| Royal Bank of Canada | 374,014 | $96.8M | 0.02% | +67,460+22.0% | Added |
| Palo Alto Investors LP | 380,417 | $98.4M | 8.87% | −865−0.2% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 383,102 | $99.1M | 0.07% | +4,593+1.2% | Added |
| TD Asset Management Inc | 389,984 | $100.9M | 0.10% | +108,956+38.8% | Added |
| Alyeska Investment Group, L.P. | 422,680 | $109.4M | 0.74% | −19,396−4.4% | Reduced |
| Bank of America Corp | 426,574 | $110.4M | 0.01% | +72,481+20.5% | Added |
| Standard Life Aberdeen plc | 437,075 | $113.1M | 0.25% | +307,532+237.4% | Added |
| Nuveen Asset Management, LLC | 447,150 | $115.7M | 0.04% | −135,603−23.3% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 448,432 | $116.0M | 0.32% | −212,114−32.1% | Reduced |
| AXA S.A. | 450,743 | $116.6M | 0.38% | +9,494+2.2% | Added |
| Swiss National Bank | 452,900 | $117.2M | 0.09% | −12,700−2.7% | Reduced |
| Franklin Resources Inc | 498,349 | $129.0M | 0.06% | −130,185−20.7% | Reduced |
| Barclays PLC | 532,260 | $137.7M | 0.07% | +136,584+34.5% | Added |
| Ra Capital Management, L.P. | 532,892 | $137.9M | 2.15% | 00.0% | Unchanged |
| Employees Provident Fund Board | 564,273 | $146.0M | 2.85% | +121,857+27.5% | Added |
| Massachusetts Financial Services Co | 580,065 | $150.1M | 0.05% | +133,463+29.9% | Added |
| Sarissa Capital Management LP | 643,000 | $166.4M | 25.64% | 00.0% | Unchanged |
| FIL Ltd | 656,502 | $169.9M | 0.18% | +593,158+936.4% | Added |
| Allianz Asset Management GmbH | 718,719 | $186.0M | 0.34% | −53,639−6.9% | Reduced |
| Renaissance Technologies LLC | 758,606 | $196.3M | 0.30% | −327,791−30.2% | Reduced |
| OrbiMed Advisors LLC | 827,600 | $214.2M | 4.29% | +270,800+48.6% | Added |
| Charles Schwab Investment Management Inc | 849,000 | $219.7M | 0.06% | +3100.0% | Added |
| First Trust Advisors LP | 977,308 | $252.9M | 0.28% | +571,795+141.0% | Added |
| American Century Companies Inc | 988,676 | $255.8M | 0.18% | +89,748+10.0% | Added |
| Beutel, Goodman & Co Ltd. | 995,456 | $257.6M | 1.37% | −3,820−0.4% | Reduced |
| FMR LLC | 1,001,144 | $259.1M | 0.02% | −359,907−26.4% | Reduced |
| UBS Asset Management Americas Inc | 1,014,583 | $262.5M | 0.10% | −50,935−4.8% | Reduced |
| Goldman Sachs Group Inc | 1,095,823 | $283.6M | 0.06% | +304,978+38.6% | Added |
| Amundi | 1,201,706 | $307.4M | 0.14% | +108,182+9.9% | Added |
| Deutsche Bank AG | 1,189,890 | $307.9M | 0.16% | +253,408+27.1% | Added |
| Pictet Asset Management Holding SA | 1,257,959 | $325.5M | 0.36% | +45,477+3.8% | Added |
| Legal & General Group Plc | 1,325,096 | $342.9M | 0.11% | −13,982−1.0% | Reduced |
| Bank of New York Mellon Corp | 1,389,698 | $359.6M | 0.07% | −40,434−2.8% | Reduced |
| Van Eck Associates Corp | 1,421,196 | $367.8M | 0.67% | +231,650+19.5% | Added |
| Dimensional Fund Advisors LP | 1,424,659 | $368.7M | 0.11% | +43,444+3.1% | Added |
| Norges Bank | 1,463,571 | $378.7M | 0.07% | −65,525−4.3% | Reduced |
| Northern Trust Corp | 1,494,963 | $386.9M | 0.07% | −148,072−9.0% | Reduced |
| Price T Rowe Associates Inc | 1,508,346 | $390.3M | 0.05% | +344,816+29.6% | Added |
| Morgan Stanley | 1,577,777 | $408.3M | 0.04% | +84,664+5.7% | Added |
| Clearbridge Investments, LLC | 1,679,302 | $434.6M | 0.37% | −143,880−7.9% | Reduced |
| Invesco Ltd. | 1,814,666 | $469.6M | 0.11% | +633,292+53.6% | Added |
| Geode Capital Management, LLC | 3,309,317 | $854.1M | 0.09% | +72,430+2.2% | Added |
| JPMorgan Chase & Co | 5,072,640 | $1.31B | 0.13% | +86,888+1.7% | Added |
| Wellington Management Group LLP | 5,324,396 | $1.38B | 0.26% | −49,914−0.9% | Reduced |
| T. Rowe Price Investment Management, Inc. | 5,357,326 | $1.39B | 0.90% | +602,335+12.7% | Added |