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 2023?

987 institutional investors reported BIIB - BIOGEN INC. - Common Stock for Q1 2023. Use the holders table for investor-level position and value details.

BIOGEN INC. - Common Stock (BIIB)

CUSIP: 09062X103

Q1 2023 13F Holders as of 31 Mar 2023

Type / Class: Equity / Common Stock
Shares outstanding: 146,919,278
Total 13F shares: 125,053,711
Share change: +1,075,986
Total reported value: $34,758,696,486
Put/Call ratio: 87%
Price per share: $278.03
Number of holders: 987
Value change: +$300,589,329
Number of buys: 409
Number of sells: 454

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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Explore More Reporting Periods

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

Newer quarter: Q2 2023
Previous quarter: Q4 2022

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
PRIMECAP MANAGEMENT CO/CA/	13F	Company	11%	15,700,576	$4,347,803,506	—	31 Dec 2022	13F
BlackRock Finance, Inc.	13F	Company	9.7%	14,260,613	$3,949,048,953	—	31 Dec 2022	13F
VANGUARD GROUP INC	13F	Company	8.2%	11,976,623	$3,316,566,441	—	31 Dec 2022	13F
STATE STREET CORP	13F	Company	4.6%	6,808,274	$1,885,347,236	—	31 Dec 2022	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	3.7%	5,411,213	$1,498,473,105	—	31 Dec 2022	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	2.3%	3,342,330	$924,071,000	—	31 Dec 2022	13F
Private Advisor Group, LLC	13F	Company	0%	6,045	$750,546,000	—	31 Dec 2022	13F
JPMORGAN CHASE & CO	13F	Company	1.5%	2,270,307	$628,694,000	—	31 Dec 2022	13F
DEUTSCHE BANK AG\	13F	Company	1.3%	1,851,114	$512,610,489	—	31 Dec 2022	13F
Clearbridge Investments, LLC	13F	Company	1.2%	1,805,575	$499,999,718	—	31 Dec 2022	13F
D. E. Shaw & Co., Inc.	13F	Company	1.2%	1,756,082	$486,294,227	—	31 Dec 2022	13F
NORTHERN TRUST CORP	13F	Company	1.1%	1,671,669	$462,918,579	—	31 Dec 2022	13F
Bank of New York Mellon Corp	13F	Company	1%	1,512,956	$418,967,905	—	31 Dec 2022	13F
MORGAN STANLEY	13F	Company	0.97%	1,422,816	$394,006,366	—	31 Dec 2022	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	0.95%	1,396,513	$386,723,000	—	31 Dec 2022	13F
Legal & General Group Plc	13F	Company	0.94%	1,380,659	$382,330,789	—	31 Dec 2022	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.91%	1,343,232	$371,946,000	—	31 Dec 2022	13F
NORGES BANK	13F	Company	0.89%	1,307,702	$362,128,838	—	31 Dec 2022	13F
MARSHALL WACE, LLP	13F	Company	0.85%	1,244,150	$344,530,018	—	31 Dec 2022	13F
Point72 Asset Management, L.P.	13F	Company	0.83%	1,226,124	$339,538,258	—	31 Dec 2022	13F
FMR LLC	13F	Company	0.82%	1,211,193	$335,403,749	—	31 Dec 2022	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.74%	1,094,191	$303,003,369	—	31 Dec 2022	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.68%	1,000,276	$276,996,000	—	31 Dec 2022	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.67%	978,882	$271,071,843	—	31 Dec 2022	13F
Beutel, Goodman & Co Ltd.	13F	Company	0.65%	954,896	$264,429,000	—	31 Dec 2022	13F
Invesco Ltd.	13F	Company	0.63%	920,479	$254,899,044	—	31 Dec 2022	13F
Amundi	13F	Individual	0.56%	818,633	$233,334,964	—	31 Dec 2022	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.57%	836,294	$231,586,535	—	31 Dec 2022	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.55%	804,300	$222,726,756	—	31 Dec 2022	13F
VAN ECK ASSOCIATES CORP	13F	Company	0.54%	787,558	$218,090,000	—	31 Dec 2022	13F
PICTET ASSET MANAGEMENT SA	13F	Company	0.48%	709,906	$196,588,000	—	31 Dec 2022	13F
Man Group plc	13F	Company	0.47%	695,284	$192,538,045	—	31 Dec 2022	13F
Sarissa Capital Management LP	13F	Company	0.44%	643,000	$178,059,560	—	31 Dec 2022	13F
BARCLAYS PLC	13F	Company	0.42%	622,728	$172,445,839	—	31 Dec 2022	13F
FARALLON CAPITAL MANAGEMENT LLC	13F	Company	0.4%	592,699	$164,130,207	—	31 Dec 2022	13F
Swiss National Bank	13F	Company	0.4%	589,800	$163,327,416	—	31 Dec 2022	13F
Alexander J. Denner	3/4/5	Director	— class O/S missing	658,099	$163,208,552	—	15 Jun 2022	3/4/5
Allianz Asset Management GmbH	13F	Company	0.4%	581,634	$161,066,087	—	31 Dec 2022	13F
Nuveen Asset Management, LLC	13F	Company	0.38%	551,985	$152,856,000	—	31 Dec 2022	13F
RA CAPITAL MANAGEMENT, L.P.	13F	Company	0.36%	532,892	$147,568,453	—	31 Dec 2022	13F
Assenagon Asset Management S.A.	13F	Company	0.36%	531,412	$147,159,000	—	31 Dec 2022	13F
Sumitomo Mitsui Trust Group, Inc.	13F	Company	0.35%	519,795	$143,941,631	—	31 Dec 2022	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.34%	496,337	$137,445,643	—	31 Dec 2022	13F
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F	Company	0.3%	446,799	$123,728,000	—	31 Dec 2022	13F
FRANKLIN RESOURCES INC	13F	Company	0.29%	422,084	$116,883,502	—	31 Dec 2022	13F
NORDEA INVESTMENT MANAGEMENT AB	13F	Company	0.29%	423,965	$116,492,863	—	31 Dec 2022	13F
ARMISTICE CAPITAL, LLC	13F	Company	0.27%	400,000	$110,768,000	—	31 Dec 2022	13F
AXA S.A.	13F	Company	0.26%	386,696	$107,083,857	—	31 Dec 2022	13F
BNP Paribas Asset Management Holding S.A.	13F	Company	0.26%	385,410	$106,728,000	—	31 Dec 2022	13F
ROYAL BANK OF CANADA	13F	Company	0.26%	383,806	$106,284,000	—	31 Dec 2022	13F

Institutional Holders of BIOGEN INC. - Common Stock (BIIB) as of Q1 2023

As of 31 Mar 2023, BIOGEN INC. - Common Stock (BIIB) was held by 987 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 125,053,711 shares. The largest 10 holders included PRIMECAP MANAGEMENT CO/CA/, BlackRock Inc., VANGUARD GROUP INC, STATE STREET CORP, WELLINGTON MANAGEMENT GROUP LLP, JPMORGAN CHASE & CO, GEODE CAPITAL MANAGEMENT, LLC, PRICE T ROWE ASSOCIATES INC /MD/, Clearbridge Investments, LLC, and FMR LLC. This page lists 991 institutional shareholders reporting positions in this security for the Q1 2023 filing period.

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

Compare Q1 2023 vs Q4 2022 Across Filers

Q4 2022 holders

1,018

Q1 2023 holders

987

Holder diff

-31

Investor	Q4 2022 Shares	Q1 2023 Shares	Share Diff	Share Chg %	Q4 2022 Value $	Q1 2023 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.