| $385M | ||
| $350M | ||
| $215M | ||
| $107M | ||
| $100M | ||
| $91M |
Buys | $585 | 1 | 20 |
Sells | $1,034,815 | 4 | 80 |
| Murphy Nicole | Head of Pharm Ops and Tech | 1 | $585 | 0 | $0 | $585 |
| Izzar Rachid | Head of Global Product Strat. | 0 | $0 | 1 | $300,105 | $-300,105 |
| Singhal Priya | Head of Development | 0 | $0 | 3 | $734,710 | $-734,710 |
Biogen Inc. is a leading biotechnology firm dedicated to the discovery, development, production, and distribution of treatments for complex neurological and neurodegenerative conditions. Its established portfolio includes a range of medications addressing multiple sclerosis (MS), such as TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA. For spinal muscular atrophy (SMA), Biogen provides SPINRAZA, while FUMADERM is available for the treatment of plaque psoriasis. Among its other key offerings is ADUHELM, specifically developed for Alzheimer's disease. The company also markets a selection of biosimilar drugs, including BENEPALI (an etanercept biosimilar akin to ENBREL), IMRALDI (an adalimumab biosimilar comparable to HUMIRA), and FLIXABI (an infliximab biosimilar referencing REMICADE). Further extending its therapeutic reach, Biogen supplies RITUXAN, prescribed for conditions like non-Hodgkin's lymphoma, chronic lymphocytic leukemia (CLL), rheumatoid arthritis, certain types of ANCA-associated vasculitis, and pemphigus vulgaris. RITUXAN HYCELA targets non-Hodgkin's lymphoma and CLL, and GAZYVA is utilized for CLL and follicular lymphoma. OCREVUS addresses both relapsing and primary progressive forms of MS, complementing the company's broader efforts in anti-CD20 therapies. The company maintains a robust research and development pipeline, featuring numerous investigational therapies. These candidates are designed to tackle a wide spectrum of conditions, including multiple sclerosis and neuroimmunological disorders (e.g., BIIB135, BIIB061, BIIB091, BIIB107), Alzheimer's disease and other forms of dementia (e.g., Aducanumab, Lecanemab, BIIB076, BIIB080), neuromuscular disorders (e.g., BIIB067, BIIB078, BIIB105, BIIB100, BIIB110), Parkinson's disease and related movement disorders (e.g., BIIB124, BIIB094, BIIB118, BIIB101, BIIB122), neuropsychiatric conditions (e.g., BIIB125, BIIB104), immunology-related illnesses (e.g., Dapirolizumab pegol, BIIB059), acute neurological events (e.g., BIIB093, BIIB131), and neuropathic pain (e.g., BIIB074). Additionally, several biosimilar candidates, such as BYOOVIZ, BIIB800, and SB15, are progressing through various developmental stages. Biogen actively engages in strategic collaborations and licensing arrangements with various partners, including Acorda Therapeutics, Inc., Alkermes Pharma Ireland Limited, Denali Therapeutics Inc., Eisai Co., Ltd., Genentech, Inc., Neurimmune SubOne AG, Ionis Pharmaceuticals, Inc., Samsung Bioepis Co., Ltd., Sangamo Therapeutics, Inc., and Sage Therapeutics, Inc. Established in 1978, Biogen Inc. maintains its corporate headquarters in Cambridge, Massachusetts.
Over the last 12 months, insiders at Biogen Inc. have bought $585 and sold $1.03M worth of Biogen Inc. stock.
On average, over the past 5 years, insiders at Biogen Inc. have bought $84,467 and sold $1.92M worth of stock each year.
Highest buying activity among insiders over the last 12 months: Murphy Nicole (Head of Pharm Ops and Tech) — $585.
The last purchase of 3 shares for transaction amount of $585 was made by Murphy Nicole (Head of Pharm Ops and Tech) on 2026‑02‑12.
| 2026-02-12 | Murphy Nicole | Head of Pharm Ops and Tech | 3 <0.0001% | $195.03 | $585 | -3.71% | ||
| 2026-02-09 | Sale | Singhal Priya | Head of Development | 2,660 0.0019% | $199.83 | $531,548 | -2.80% | |
| 2026-02-02 | Sale | Singhal Priya | Head of Development | 748 0.0005% | $179.30 | $134,116 | +5.18% | |
| 2025-09-02 | Sale | Singhal Priya | Head of Development | 517 0.0003% | $133.55 | $69,045 | +27.24% | |
| 2025-07-08 | Sale | Izzar Rachid | Head of Global Product Strat. | 2,223 0.0015% | $135.00 | $300,105 | +30.02% | |
| 2025-05-19 | Sale | Singhal Priya | Head of Development | 3,806 0.0025% | $126.25 | $480,508 | +27.26% | |
| 2025-05-02 | DORSA CAROLINE | director | 1,235 0.0008% | $122.72 | $151,559 | +24.78% | ||
| 2025-03-07 | Sale | SHERWIN STEPHEN A | director | 8,760 0.0059% | $150.02 | $1.31M | -5.97% | |
| 2024-12-09 | Sale | Singhal Priya | Head of Development | 110 <0.0001% | $157.21 | $17,293 | -10.50% | |
| 2024-09-03 | Sale | Singhal Priya | Head of Development | 431 0.0003% | $204.22 | $88,019 | -31.28% | |
| 2024-04-02 | Sale | Singhal Priya | Head of Development | 93 <0.0001% | $213.09 | $19,817 | -8.11% | |
| 2024-02-22 | Sale | Singhal Priya | Head of Development | 262 0.0002% | $221.23 | $57,962 | -9.78% | |
| 2024-02-16 | Sale | Singhal Priya | Head of Development | 108 <0.0001% | $221.49 | $23,921 | -8.00% | |
| 2024-02-15 | Rowinsky Eric K | director | 455 0.0003% | $222.54 | $101,256 | -9.74% | ||
| 2024-02-12 | Sale | Singhal Priya | Head of Development | 419 0.0003% | $239.45 | $100,330 | -17.50% | |
| 2024-02-02 | Sale | Singhal Priya | Head of Development | 634 0.0004% | $245.93 | $155,920 | -16.35% | |
| 2023-12-11 | Sale | Singhal Priya | Head of Development | 110 <0.0001% | $248.00 | $27,280 | -11.89% | |
| 2023-09-05 | Sale | Singhal Priya | Head of Development | 431 0.0003% | $269.43 | $116,124 | -14.37% | |
| 2023-07-03 | Sale | Singhal Priya | Head of Development | 81 <0.0001% | $282.87 | $22,912 | -15.65% | |
| 2023-04-28 | Sale | Gregory Ginger | EVP, Human Resources | 2,681 0.0018% | $300.00 | $804,300 | -15.75% |
| Murphy Nicole | Head of Pharm Ops and Tech | 19611 0.0133% | $3.78M | 1 | 0 | |
| Singhal Priya | Head of Development | 8043 0.0054% | $1.55M | 0 | 16 | |
| Izzar Rachid | Head of Global Product Strat. | 6330 0.0043% | $1.22M | 0 | 1 | |
| DENNER ALEXANDER J | director | 643000 0.4355% | $123.85M | 12 | 4 | +0.39% |
| SHARP PHILIP A | director | 468033 0.317% | $90.15M | 0 | 6 | |
| HANNA NABIL | EVP Discovery Research | 450905 0.3054% | $86.85M | 0 | 4 | |
| MULLEN JAMES C | CEO & President | 131149 0.0888% | $25.26M | 0 | 54 | |
| PICKETT CECIL B | President, R & D | 116135 0.0787% | $22.37M | 0 | 4 | |
| ROHN WILLIAM R | Chief Operating Officer | 65462 0.0443% | $12.61M | 0 | 13 | |
| SCANGOS GEORGE A | Chief Executive Officer | 54779 0.0371% | $10.55M | 0 | 47 | |
| BELZER ALAN | director | 40250 0.0273% | $7.75M | 0 | 3 | |
| ALEXANDER SUSAN H | EVP Chief Legal Off & Corp Sec | 39396 0.0267% | $7.59M | 0 | 16 | |
| Vounatsos Michel | Chief Executive Officer | 34810 0.0236% | $6.71M | 5 | 0 | +8.6% |
| DORSA CAROLINE | director | 27842 0.0189% | $5.36M | 9 | 2 | +27.88% |
| Hamm Robert A | Chief Operating Officer | 27212 0.0184% | $5.24M | 0 | 14 | |
| HASLER HANS PETER | Chief Operating Officer | 26858 0.0182% | $5.17M | 0 | 11 | |
| Cox John | EVP Pharmaceutical Oper & Tech | 25567 0.0173% | $4.92M | 0 | 11 | |
| Hasnain Faheem | EVP, Oncology/Rheumatology SBU | 25454 0.0172% | $4.9M | 0 | 4 | |
| WIGGINS MARK C | EVP Corp. and Bus. Dev. | 22780 0.0154% | $4.39M | 0 | 32 | |
| MATSUI CONNIE | EVP, Corp. Strategy and Comm. | 22571 0.0153% | $4.35M | 0 | 9 | |
| Rowinsky Eric K | director | 20629 0.014% | $3.97M | 1 | 6 | <0.0001% |
| KELLOGG PETER N | EVP, Finance and CFO | 18966 0.0128% | $3.65M | 0 | 3 | |
| DUNN JOHN MICHAEL | EVP, New Ventures | 18712 0.0127% | $3.6M | 0 | 16 | |
| PANGIA ROBERT W | director | 18587 0.0126% | $3.58M | 0 | 20 | |
| YOUNG WILLIAM | director | 18509 0.0125% | $3.57M | 0 | 5 | |
| Kowolenko Michael | SVP, Pharm Ops & Technology | 18124 0.0123% | $3.49M | 0 | 4 | |
| ADELMAN BURT A | EVP, Portfolio Strategy | 12769 0.0086% | $2.46M | 0 | 21 | |
| WILLIAMS DOUGLAS E | EVP Research & Development | 11817 0.008% | $2.28M | 0 | 3 | |
| MacLean Michael F | SVP, Chief Accounting Officer | 11634 0.0079% | $2.24M | 0 | 7 | |
| SHERWIN STEPHEN A | director | 11318 0.0077% | $2.18M | 0 | 9 | |
| Clancy Paul J | Executive VP and CFO | 10813 0.0073% | $2.08M | 0 | 14 | |
| SCHNEIER CRAIG ERIC | EVP, HR, Public Affairs & Comm | 10201 0.0069% | $1.96M | 0 | 41 | |
| Sandrock Alfred | Head of Research & Development | 10169 0.0069% | $1.96M | 0 | 25 | |
| ROSS BRUCE | director | 9900 0.0067% | $1.91M | 0 | 12 | |
| Pawlicki Raymond | SVP, Chief Information Officer | 8710 0.0059% | $1.68M | 0 | 5 | |
| Gregory Ginger | EVP, Human Resources | 8483 0.0057% | $1.63M | 0 | 2 | |
| LEAMING NANCY | director | 7660 0.0052% | $1.48M | 0 | 11 | |
| Posner Brian S | director | 7400 0.005% | $1.43M | 0 | 14 | |
| Karaboutis Adriana | EVP, Tech, Bus. Sol & Corp Aff | 7360 0.005% | $1.42M | 0 | 7 | |
| RODRIGUEZ EDWARD | VP and Controller | 7100 0.0048% | $1.37M | 0 | 2 | |
| PAPADOPOULOS STELIOS | director | 5000 0.0034% | $963,100.00 | 1 | 2 | <0.0001% |
| Holtzman Steven H | EVP Corporate Development | 4321 0.0029% | $832,311.02 | 0 | 9 | |
| Ehlers Michael D | EVP, Research and Development | 4281 0.0029% | $824,639.16 | 0 | 1 | |
| Gagnon Robert E. | Vice President, Finance | 3999 0.0027% | $770,287.38 | 0 | 15 | |
| GLASSBERG ALAN | director | 3550 0.0024% | $683,801.00 | 0 | 8 | |
| Kingsley Stuart A | EVP, Global Comm. Operations | 3511 0.0024% | $676,288.82 | 0 | 3 | |
| SCHENK LYNN | director | 3100 0.0021% | $597,122.00 | 0 | 11 | |
| Guindo Chirfi | Head of Glob Prod Strat & Com | 2919 0.002% | $562,257.78 | 0 | 1 | |
| Mantas Jesus B | director | 2943 0.002% | $566,880.66 | 1 | 0 | +1.75% |
| Koppel Adam | EVP, Strategy and Bus. Dev. | 2402 0.0016% | $462,694.87 | 0 | 2 | |
| Mulligan Richard | director | 2020 0.0014% | $389,092.40 | 0 | 3 | |
| KELLER THOMAS F | director | 1250 0.0008% | $240,775.00 | 0 | 9 | |
| Artavanis-Tsakonas Spyridon | SVP, Chief Scientific Officer | 352 0.0002% | $67,805.13 | 0 | 1 | |
| RASTETTER WILLIAM H | Executive Chairman | 0 0% | $0 | 0 | 4 | |
| BUCKNUM THOMAS J | EVP and General Counsel | 0 0% | $0 | 0 | 4 | |
| GOOD MARY L | director | 0 0% | $0 | 0 | 5 | |
| Gilman Michael | EVP - Research | 0 0% | $0 | 0 | 3 | |
| Granata Francesco | EVP Global Commercial Operatio | 0 0% | $0 | 0 | 1 | |
| DiPietro Kenneth | EVP Human Resources | 0 0% | $0 | 0 | 6 |
Biogen Inc. (BIIB) | $364,368,632 | 29 | 9.65% | $28.44B |
$6,224,380 | 25 | 3.57% | $558.86B | |
$1,922,773,492 | 23 | 18.03% | $1,082.2B | |
$23,541,811 | 22 | 6.42% | $113.48B | |
$28,542,809 | 19 | 26.40% | $394.12B | |
$2,523,290 | 18 | -0.86% | $146.02B | |
$18,601,970 | 18 | 3.55% | $295.19B | |
$356,328 | 15 | -42.83% | $58.67M | |
$3,170,734 | 10 | 3.98% | $186.59B | |
$3,933,798 | 8 | 12.51% | $159.05B | |
$904,305 | 8 | 2.57% | $3.52B | |
$8,176 | 1 | 13.73% | $42.02M |
| Increased Positions | 512 | +52.51% | 20M | +15% |
| Decreased Positions | 391 | -40.1% | 13M | -9.58% |
| New Positions | 183 | New | 5M | New |
| Sold Out Positions | 85 | Sold Out | 1M | Sold Out |
| Total Postitions | 1,096 | +12.41% | 140M | +5.42% |
| Vanguard Group Inc | $3.07M | 11.76% | 17.29M | -1,416 | <0.01% | 2025-09-30 |
| Primecap Management Co/Ca/ | $2.66M | 10.17% | 14.95M | -847,425 | -5.36% | 2025-09-30 |
| Blackrock, Inc. | $2.63M | 10.04% | 14.76M | +1M | +8.91% | 2025-09-30 |
| State Street Corp | $1.3M | 4.98% | 7.32M | -149,058 | -2% | 2025-09-30 |
| Wellington Management Group Llp | $755,113.00 | 2.89% | 4.25M | -551,916 | -11.5% | 2025-09-30 |
| Geode Capital Management, Llc | $723,511.00 | 2.77% | 4.07M | +150,631 | +3.84% | 2025-09-30 |
| Point72 Asset Management, L.P. | $688,679.00 | 2.64% | 3.87M | +41,174 | +1.07% | 2025-09-30 |
| Invesco Ltd. | $429,991.00 | 1.65% | 2.42M | +98,001 | +4.22% | 2025-09-30 |
| Norges Bank | $402,616.00 | 1.54% | 2.26M | -61,022 | -2.62% | 2025-06-30 |
| Morgan Stanley | $400,368.00 | 1.53% | 2.25M | +295,325 | +15.1% | 2025-09-30 |