What does CUSIP 09062X103 represent in this 13F holders report?

CUSIP 09062X103 is the security identifier for BIIB - BIOGEN INC. - Common Stock used to aggregate holder disclosures.

How many institutions held BIIB - BIOGEN INC. - Common Stock in Q1 2020?

1090 institutional investors reported BIIB - BIOGEN INC. - Common Stock for Q1 2020. Use the holders table for investor-level position and value details.

BIOGEN INC. - Common Stock (BIIB)

CUSIP: 09062X103

Q1 2020 13F Holders as of 31 Mar 2020

Type / Class: Equity / Common Stock
Shares outstanding: 147,079,094
Total 13F shares: 144,371,093
Share change: -6,623,647
Total reported value: $45,633,042,157
Put/Call ratio: 127%
Price per share: $316.38
Number of holders: 1,090
Value change: -$2,072,462,238
Number of buys: 415
Number of sells: 572

Quarterly Holders Quick Answers

What is CUSIP 09062X103?
CUSIP 09062X103 identifies BIIB - BIOGEN INC. - Common Stock in SEC institutional holdings data.

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Back to full security ownership history for the broader multi-quarter picture.
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SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2020
Previous quarter: Q4 2019

Recent filing periods for CUSIP 09062X103:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of BIIB - BIOGEN INC. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock Finance, Inc.	13F	Company	11%	15,658,641	$4,646,388,000	—	31 Dec 2019	13F
PRIMECAP MANAGEMENT CO/CA/	13F	Company	10%	15,189,481	$4,507,175,000	—	31 Dec 2019	13F
VANGUARD GROUP INC	13F	Company	9.4%	13,870,538	$4,115,804,000	—	31 Dec 2019	13F
STATE STREET CORP	13F	Company	5.6%	8,232,187	$2,442,737,000	—	31 Dec 2019	13F
Clearbridge Investments, LLC	13F	Company	3.5%	5,138,098	$1,511,834,000	—	31 Dec 2019	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	3.2%	4,655,756	$1,381,503,000	—	31 Dec 2019	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	3.1%	4,569,906	$1,356,028,000	—	31 Dec 2019	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	2.2%	3,302,637	$978,449,000	—	31 Dec 2019	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	1.8%	2,636,959	$781,014,000	—	31 Dec 2019	13F
NORTHERN TRUST CORP	13F	Company	1.7%	2,491,261	$739,231,000	—	31 Dec 2019	13F
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F	Company	1.6%	2,420,191	$718,143,000	—	31 Dec 2019	13F
NORGES BANK	13F	Company	1.6%	2,413,625	$716,195,000	—	31 Dec 2019	13F
Bank of New York Mellon Corp	13F	Company	1.4%	2,117,304	$628,268,000	—	31 Dec 2019	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	1.4%	2,011,912	$596,995,000	—	31 Dec 2019	13F
Capital World Investors	13F	Company	1.2%	1,828,246	$542,495,000	—	31 Dec 2019	13F
GOLDMAN SACHS GROUP INC	13F	Company	1.2%	1,771,627	$525,695,000	—	31 Dec 2019	13F
D. E. Shaw & Co., Inc.	13F	Company	1.1%	1,583,823	$469,967,000	—	31 Dec 2019	13F
FMR LLC	13F	Company	0.99%	1,458,609	$432,813,000	—	31 Dec 2019	13F
JPMORGAN CHASE & CO	13F	Company	0.98%	1,439,824	$427,238,000	—	31 Dec 2019	13F
Boston Partners	13F	Company	0.95%	1,401,256	$415,765,000	—	31 Dec 2019	13F
DEUTSCHE BANK AG\	13F	Company	0.93%	1,371,780	$407,040,000	—	31 Dec 2019	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.89%	1,314,911	$390,173,000	—	31 Dec 2019	13F
Legal & General Group Plc	13F	Company	0.85%	1,255,408	$372,508,000	—	31 Dec 2019	13F
Nuveen Asset Management, LLC	13F	Company	0.85%	1,251,690	$371,414,000	—	31 Dec 2019	13F
LSV ASSET MANAGEMENT	13F	Company	0.76%	1,119,833	$332,288,000	—	31 Dec 2019	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.75%	1,107,351	$328,584,263	—	31 Dec 2019	13F
Invesco Ltd.	13F	Company	0.74%	1,093,629	$324,513,000	—	31 Dec 2019	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.69%	1,016,536	$301,637,000	—	31 Dec 2019	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.64%	934,331	$277,245,000	—	31 Dec 2019	13F
AMUNDI ASSET MANAGEMENT US, INC.	13F	Company	0.58%	860,123	$255,223,000	—	31 Dec 2019	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.57%	835,322	$247,851,000	—	31 Dec 2019	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.57%	834,205	$247,534,000	—	31 Dec 2019	13F
Sumitomo Mitsui Trust Group, Inc.	13F	Company	0.52%	759,460	$225,355,000	—	31 Dec 2019	13F
Man Group plc	13F	Company	0.48%	709,416	$210,505,000	—	31 Dec 2019	13F
BARCLAYS PLC	13F	Company	0.45%	664,526	$197,183,000	—	31 Dec 2019	13F
BERKSHIRE HATHAWAY INC	13F	Company	0.44%	648,447	$192,414,000	—	31 Dec 2019	13F
Sarissa Capital Management LP	13F	Company	0.44%	643,000	$190,797,000	—	31 Dec 2019	13F
PICTET ASSET MANAGEMENT LTD	13F	Company	0.43%	637,685	$189,220,000	—	31 Dec 2019	13F
Allianz Asset Management GmbH	13F	Company	0.43%	633,725	$188,045,000	—	31 Dec 2019	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.43%	629,461	$186,780,000	—	31 Dec 2019	13F
FRANKLIN RESOURCES INC	13F	Company	0.4%	589,130	$174,812,000	—	31 Dec 2019	13F
Swiss National Bank	13F	Company	0.4%	581,558	$172,566,000	—	31 Dec 2019	13F
FIRST TRUST ADVISORS LP	13F	Company	0.37%	542,423	$160,953,000	—	31 Dec 2019	13F
GLENMEDE TRUST CO NA	13F	Company	0.36%	533,522	$158,311,000	—	31 Dec 2019	13F
NORDEA INVESTMENT MANAGEMENT AB	13F	Company	0.35%	522,041	$154,634,000	—	31 Dec 2019	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.35%	519,614	$154,185,000	—	31 Dec 2019	13F
SCHRODER INVESTMENT MANAGEMENT GROUP	13F	Company	0.33%	486,109	$144,244,000	—	31 Dec 2019	13F
CREDIT SUISSE AG/	13F	Company	0.33%	480,868	$142,688,000	—	31 Dec 2019	13F
Assenagon Asset Management S.A.	13F	Company	0.32%	476,841	$141,493,000	—	31 Dec 2019	13F
Redmile Group, LLC	13F	Company	0.31%	457,500	$135,754,000	—	31 Dec 2019	13F

Institutional Holders of BIOGEN INC. - Common Stock (BIIB) as of Q1 2020

As of 31 Mar 2020, BIOGEN INC. - Common Stock (BIIB) was held by 1,090 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 144,371,093 shares. The largest 10 holders included BlackRock Inc., PRIMECAP MANAGEMENT CO/CA/, VANGUARD GROUP INC, STATE STREET CORP, RENAISSANCE TECHNOLOGIES LLC, Clearbridge Investments, LLC, PRICE T ROWE ASSOCIATES INC /MD/, WELLINGTON MANAGEMENT GROUP LLP, GEODE CAPITAL MANAGEMENT, LLC, and NORTHERN TRUST CORP. This page lists 1,092 institutional shareholders reporting positions in this security for the Q1 2020 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2020 vs Q4 2019 Across Filers

Q4 2019 holders

1,090

Q1 2020 holders

1,090

Holder diff

Investor	Q4 2019 Shares	Q1 2020 Shares	Share Diff	Share Chg %	Q4 2019 Value $	Q1 2020 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.