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
Empirical Finance, LLC	9,282	$2.27M	0.40%	–	–
Optimal Asset Management, Inc.	8,113	$2.27M	0.29%	–	–
Pensionfund Sabic	8,000	$2.24M	0.52%	–	–
Kinneret Advisory, LLC	7,921	$2.22M	0.28%	–	–
Robinson Value Management, Ltd.	7,872	$2.20M	1.81%	–	–
Private Advisor Group, LLC	7,681	$2.15M	0.02%	–	–
Paradigm Asset Management Co LLC	7,600	$2.13M	0.57%	–	–
Leelyn Smith, LLC	7,561	$2.12M	0.63%	–	–
Federated Hermes, Inc.	7,379	$2.06M	0.00%	–	–
Magnetar Financial LLC	7,363	$2.06M	0.02%	–	–
Parametrica Management Ltd	7,352	$2.03M	0.98%	–	–
Heron Bay Capital Management	7,252	$2.03M	1.21%	–	–
Evergreen Capital Management LLC	7,234	$2.02M	0.10%	–	–
Sumitomo Life Insurance Co	7,231	$2.02M	0.08%	–	–
Malaga Cove Capital, LLC	7,192	$2.01M	0.86%	–	–
South Dakota Investment Council	7,179	$2.01M	0.03%	–	–
Fiera Capital Corp	7,081	$1.98M	0.01%	–	–
TownSquare Capital, LLC	7,043	$1.97M	0.08%	–	–
Bowling Portfolio Management LLC	7,032	$1.97M	0.47%	–	–
Cary Street Partners Asset Management LLC	29,324	$1.96M	0.48%	–	–
Fairfield, Bush & Co.	7,000	$1.96M	0.56%	–	–
Regentatlantic Capital LLC	6,977	$1.95M	0.07%	–	–
National Asset Management, Inc.	7,033	$1.95M	0.07%	–	–
Cairn Investment Group, Inc.	6,962	$1.95M	1.62%	–	–
Dowling & Yahnke LLC	6,905	$1.93M	0.13%	–	–
Northwestern Mutual Investment Management Company, LLC	6,905	$1.93M	0.03%	–	–
Cambridge Investment Research Advisors, Inc.	6,898	$1.93M	0.01%	–	–
Financial Advisors Network, Inc.	6,841	$1.91M	0.62%	–	–
High Note Wealth, LLC	6,824	$1.91M	0.74%	–	–
Levin Capital Strategies, L.P.	6,818	$1.91M	0.20%	–	–
Sphera Funds Management Ltd.	6,800	$1.90M	0.17%	–	–
People's United Financial, Inc.	6,780	$1.90M	0.05%	–	–
Blue Square Asset Management, LLC	6,710	$1.88M	1.20%	–	–
American Research & Management Co.	6,651	$1.86M	0.45%	–	–
Mogy Joel R Investment Counsel Inc	6,500	$1.82M	0.17%	–	–
Creative Financial Designs Inc	6,482	$1.81M	0.35%	–	–
Gilder Gagnon Howe & Co LLC	6,428	$1.80M	0.01%	–	–
Azzad Asset Management Inc	6,411	$1.79M	0.30%	–	–
MUFG Securities EMEA plc	6,395	$1.79M	0.02%	–	–
Seeyond	6,356	$1.78M	0.18%	–	–
Hudson Canyon Capital Management	6,350	$1.78M	1.39%	–	–
Greatmark Investment Partners, Inc.	6,345	$1.77M	0.35%	–	–
Brown Brothers Harriman & Co	6,311	$1.77M	0.01%	–	–
Glenview Trust Co	6,308	$1.76M	0.08%	–	–
Segantii Capital Management Ltd	6,268	$1.75M	0.08%	–	–
Atria Investments LLC	6,263	$1.75M	0.04%	–	–
Berry Street Capital Management LLP	6,250	$1.75M	0.25%	–	–
Whittier Trust Co	6,222	$1.74M	0.03%	–	–
Schonfeld Strategic Advisors LLC	6,205	$1.74M	0.02%	–	–
E. Ohman J:or Asset Management AB	6,199	$1.73M	0.06%	–	–
Two Sigma Investments, LP	6,189	$1.73M	0.01%	–	–
Captrust Financial Advisors	6,172	$1.73M	0.02%	–	–
DuPont Capital Management Corp	6,017	$1.68M	0.04%	–	–
Summit Global Investments	5,950	$1.67M	0.11%	–	–
Roberts Glore & Co Inc	5,931	$1.66M	0.52%	–	–
Unison Advisors LLC	5,901	$1.65M	0.32%	–	–
Cohen Investment Advisors LLC	6,077	$1.64M	1.33%	–	–
Berkshire Asset Management LLC	5,853	$1.64M	0.12%	–	–
Sompo Asset Management Co., Ltd.	5,850	$1.64M	0.37%	–	–
QS Investors, LLC	5,793	$1.62M	0.02%	–	–
Old Dominion Capital Management Inc	5,753	$1.61M	0.37%	–	–
Ikarian Capital, LLC	5,700	$1.59M	0.24%	–	–
Chicago Trust Co NA	5,674	$1.59M	0.55%	–	–
Burney Co	5,633	$1.58M	0.08%	–	–
Cigna Investments Inc	5,570	$1.56M	0.11%	–	–
Pinnacle Associates Ltd	5,534	$1.55M	0.03%	–	–
OPSEU Pension Plan Trust Fund	5,519	$1.54M	0.40%	–	–
Voloridge Investment Management, LLC	5,503	$1.54M	0.01%	–	–
Fernwood Investment Management, LLC	5,485	$1.53M	0.56%	–	–
Fiduciary Trust Co	5,388	$1.51M	0.03%	–	–
Ameritas Investment Partners, Inc.	5,305	$1.48M	0.06%	–	–
Pearl River Capital, LLC	5,288	$1.48M	0.47%	–	–
Spears Abacus Advisors LLC	5,280	$1.48M	0.11%	–	–
Vestcor Inc	5,275	$1.48M	0.06%	–	–
IBM Retirement Fund	5,235	$1.46M	0.10%	–	–
Richard P Slaughter Associates Inc	5,236	$1.46M	0.61%	–	–
Camelot Portfolios, LLC	5,213	$1.46M	0.61%	–	–
Prairiewood Capital, LLC	5,206	$1.46M	1.34%	–	–
Richard Bernstein Advisors LLC	5,164	$1.44M	0.03%	–	–
Neuberger Berman Group LLC	5,333	$1.41M	0.00%	–	–
Silverarc Capital Management, LLC	5,000	$1.40M	0.78%	–	–
Varma Mutual Pension Insurance Co	5,000	$1.40M	0.02%	–	–
Farmers & Merchants Investments Inc	4,951	$1.39M	0.07%	–	–
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%	–	–
Fuller & Thaler Asset Management, Inc.	4,921	$1.38M	0.01%	–	–
D.A. Davidson & Co.	4,822	$1.35M	0.02%	–	–
Meeder Asset Management Inc	4,803	$1.34M	0.07%	–	–
Kelly Financial Services LLC	4,764	$1.33M	0.83%	–	–
Evercore Wealth Management, LLC	4,717	$1.32M	0.03%	–	–
Bank Pictet & Cie (Asia) Ltd	4,716	$1.32M	0.41%	–	–
Xcel Wealth Management, LLC	4,695	$1.31M	0.47%	–	–
Quantitative Investment Management, LLC	4,668	$1.30M	0.11%	–	–
FDx Advisors, Inc.	4,632	$1.30M	0.05%	–	–
CAPROCK Group, Inc.	4,614	$1.29M	0.14%	–	–
LS Investment Advisors, LLC	4,583	$1.28M	0.07%	–	–
Wetherby Asset Management Inc	4,582	$1.28M	0.10%	–	–
Advisor Partners LLC	4,580	$1.28M	0.09%	–	–
Ci Investments Inc.	4,569	$1.28M	0.01%	–	–