Biogen Inc.

BIIB

Exchange: Nasdaq
Industry: Biological Products, (No Diagnostic Substances)
SEC CIK: 0000875045

SEC filings (opens in a new tab)

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, Q1 2021

Institutional positions in Biogen Inc. as of Mar 31, 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: 1,096; No complete 13F data for Q4 2020
Shares held: 127.8M; No complete 13F data for Q4 2020
Total value: $35.7B; No complete 13F data for Q4 2020

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.

Institutional holdersQ1 2021: 1,096 institutions

Value heldQ1 2021: $35.7B

Institutions holding BIIB and their total value by quarter
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, Q1 2021

Shares, value and share of portfolio for each institution holding Biogen Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding BIIB in Q1 2021
Institution	Shares	Value	% of portfolio	Change in shares	Action
FDx Advisors, Inc.	4,632	$1.30M	0.05%	–	–
Quantitative Investment Management, LLC	4,668	$1.30M	0.11%	–	–
Xcel Wealth Management, LLC	4,695	$1.31M	0.47%	–	–
Evercore Wealth Management, LLC	4,717	$1.32M	0.03%	–	–
Bank Pictet & Cie (Asia) Ltd	4,716	$1.32M	0.41%	–	–
Kelly Financial Services LLC	4,764	$1.33M	0.83%	–	–
Meeder Asset Management Inc	4,803	$1.34M	0.07%	–	–
D.A. Davidson & Co.	4,822	$1.35M	0.02%	–	–
Fuller & Thaler Asset Management, Inc.	4,921	$1.38M	0.01%	–	–
BP PLC	4,943	$1.38M	0.05%	–	–
MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH	4,942	$1.38M	0.14%	–	–
Eqis Capital Management, Inc.	4,944	$1.38M	0.11%	–	–
Farmers & Merchants Investments Inc	4,951	$1.39M	0.07%	–	–
Varma Mutual Pension Insurance Co	5,000	$1.40M	0.02%	–	–
Silverarc Capital Management, LLC	5,000	$1.40M	0.78%	–	–
Neuberger Berman Group LLC	5,333	$1.41M	0.00%	–	–
Richard Bernstein Advisors LLC	5,164	$1.44M	0.03%	–	–
Prairiewood Capital, LLC	5,206	$1.46M	1.34%	–	–
Camelot Portfolios, LLC	5,213	$1.46M	0.61%	–	–
IBM Retirement Fund	5,235	$1.46M	0.10%	–	–
Richard P Slaughter Associates Inc	5,236	$1.46M	0.61%	–	–
Vestcor Inc	5,275	$1.48M	0.06%	–	–
Spears Abacus Advisors LLC	5,280	$1.48M	0.11%	–	–
Pearl River Capital, LLC	5,288	$1.48M	0.47%	–	–
Ameritas Investment Partners, Inc.	5,305	$1.48M	0.06%	–	–
Fiduciary Trust Co	5,388	$1.51M	0.03%	–	–
Fernwood Investment Management, LLC	5,485	$1.53M	0.56%	–	–
Voloridge Investment Management, LLC	5,503	$1.54M	0.01%	–	–
OPSEU Pension Plan Trust Fund	5,519	$1.54M	0.40%	–	–
Pinnacle Associates Ltd	5,534	$1.55M	0.03%	–	–
Cigna Investments Inc	5,570	$1.56M	0.11%	–	–
Burney Co	5,633	$1.58M	0.08%	–	–
Chicago Trust Co NA	5,674	$1.59M	0.55%	–	–
Ikarian Capital, LLC	5,700	$1.59M	0.24%	–	–
Old Dominion Capital Management Inc	5,753	$1.61M	0.37%	–	–
QS Investors, LLC	5,793	$1.62M	0.02%	–	–
Berkshire Asset Management LLC	5,853	$1.64M	0.12%	–	–
Sompo Asset Management Co., Ltd.	5,850	$1.64M	0.37%	–	–
Cohen Investment Advisors LLC	6,077	$1.64M	1.33%	–	–
Unison Advisors LLC	5,901	$1.65M	0.32%	–	–
Roberts Glore & Co Inc	5,931	$1.66M	0.52%	–	–
Summit Global Investments	5,950	$1.67M	0.11%	–	–
DuPont Capital Management Corp	6,017	$1.68M	0.04%	–	–
Captrust Financial Advisors	6,172	$1.73M	0.02%	–	–
Two Sigma Investments, LP	6,189	$1.73M	0.01%	–	–
E. Ohman J:or Asset Management AB	6,199	$1.73M	0.06%	–	–
Schonfeld Strategic Advisors LLC	6,205	$1.74M	0.02%	–	–
Whittier Trust Co	6,222	$1.74M	0.03%	–	–
Berry Street Capital Management LLP	6,250	$1.75M	0.25%	–	–
Atria Investments LLC	6,263	$1.75M	0.04%	–	–
Segantii Capital Management Ltd	6,268	$1.75M	0.08%	–	–
Glenview Trust Co	6,308	$1.76M	0.08%	–	–
Brown Brothers Harriman & Co	6,311	$1.77M	0.01%	–	–
Greatmark Investment Partners, Inc.	6,345	$1.77M	0.35%	–	–
Hudson Canyon Capital Management	6,350	$1.78M	1.39%	–	–
Seeyond	6,356	$1.78M	0.18%	–	–
MUFG Securities EMEA plc	6,395	$1.79M	0.02%	–	–
Azzad Asset Management Inc	6,411	$1.79M	0.30%	–	–
Gilder Gagnon Howe & Co LLC	6,428	$1.80M	0.01%	–	–
Creative Financial Designs Inc	6,482	$1.81M	0.35%	–	–
Mogy Joel R Investment Counsel Inc	6,500	$1.82M	0.17%	–	–
American Research & Management Co.	6,651	$1.86M	0.45%	–	–
Blue Square Asset Management, LLC	6,710	$1.88M	1.20%	–	–
People's United Financial, Inc.	6,780	$1.90M	0.05%	–	–
Sphera Funds Management Ltd.	6,800	$1.90M	0.17%	–	–
Levin Capital Strategies, L.P.	6,818	$1.91M	0.20%	–	–
High Note Wealth, LLC	6,824	$1.91M	0.74%	–	–
Financial Advisors Network, Inc.	6,841	$1.91M	0.62%	–	–
Cambridge Investment Research Advisors, Inc.	6,898	$1.93M	0.01%	–	–
Dowling & Yahnke LLC	6,905	$1.93M	0.13%	–	–
Northwestern Mutual Investment Management Company, LLC	6,905	$1.93M	0.03%	–	–
National Asset Management, Inc.	7,033	$1.95M	0.07%	–	–
Cairn Investment Group, Inc.	6,962	$1.95M	1.62%	–	–
Regentatlantic Capital LLC	6,977	$1.95M	0.07%	–	–
Fairfield, Bush & Co.	7,000	$1.96M	0.56%	–	–
Cary Street Partners Asset Management LLC	29,324	$1.96M	0.48%	–	–
Bowling Portfolio Management LLC	7,032	$1.97M	0.47%	–	–
TownSquare Capital, LLC	7,043	$1.97M	0.08%	–	–
Fiera Capital Corp	7,081	$1.98M	0.01%	–	–
South Dakota Investment Council	7,179	$2.01M	0.03%	–	–
Malaga Cove Capital, LLC	7,192	$2.01M	0.86%	–	–
Sumitomo Life Insurance Co	7,231	$2.02M	0.08%	–	–
Evergreen Capital Management LLC	7,234	$2.02M	0.10%	–	–
Heron Bay Capital Management	7,252	$2.03M	1.21%	–	–
Parametrica Management Ltd	7,352	$2.03M	0.98%	–	–
Magnetar Financial LLC	7,363	$2.06M	0.02%	–	–
Federated Hermes, Inc.	7,379	$2.06M	0.00%	–	–
Leelyn Smith, LLC	7,561	$2.12M	0.63%	–	–
Paradigm Asset Management Co LLC	7,600	$2.13M	0.57%	–	–
Private Advisor Group, LLC	7,681	$2.15M	0.02%	–	–
Robinson Value Management, Ltd.	7,872	$2.20M	1.81%	–	–
Kinneret Advisory, LLC	7,921	$2.22M	0.28%	–	–
Pensionfund Sabic	8,000	$2.24M	0.52%	–	–
Optimal Asset Management, Inc.	8,113	$2.27M	0.29%	–	–
Empirical Finance, LLC	9,282	$2.27M	0.40%	–	–
Alaska Permanent Fund Corp	8,200	$2.29M	0.04%	–	–
Loring Wolcott & Coolidge Fiduciary Advisors LLP	8,202	$2.29M	0.03%	–	–
Central Bank & Trust Co	8,244	$2.31M	0.39%	–	–
Hendershot Investments Inc.	8,251	$2.31M	0.53%	–	–
Arlington Partners LLC	8,313	$2.33M	0.85%	–	–