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 2015?

961 institutional investors reported BIIB - BIOGEN INC. - Common Stock for Q1 2015. Use the holders table for investor-level position and value details.

BIOGEN INC. - Common Stock (BIIB)

CUSIP: 09062X103

Q1 2015 13F Holders as of 31 Mar 2015

Type / Class: Equity / Common Stock
Shares outstanding: 147,079,094
Total 13F shares: 213,693,704
Share change: +608,169
Total reported value: $90,176,303,862
Put/Call ratio: 182%
Price per share: $422.24
Number of holders: 961
Value change: +$321,462,904
Number of buys: 454
Number of sells: 406

Quarterly Holders Quick Answers

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

Need full ownership history?
Open the full security ownership history page.

Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
Back to full security ownership history.

Explore More Reporting Periods

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

Newer quarter: Q2 2015
Previous quarter: Q4 2014

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
FMR LLC	13F	Company	13%	19,788,113	$6,717,074,000	—	31 Dec 2014	13F
PRIMECAP MANAGEMENT CO/CA/	13F	Company	12%	17,170,693	$5,828,592,000	—	31 Dec 2014	13F
VANGUARD GROUP INC	13F	Company	8.7%	12,730,694	$4,321,434,000	—	31 Dec 2014	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	8.3%	12,176,548	$4,133,329,000	—	31 Dec 2014	13F
STATE STREET CORP	13F	Company	6.9%	10,105,791	$3,430,422,000	—	31 Dec 2014	13F
Clearbridge Investments, LLC	13F	Company	5.6%	8,231,670	$2,794,241,000	—	31 Dec 2014	13F
JPMORGAN CHASE & CO	13F	Company	4.7%	6,974,966	$2,367,652,000	—	31 Dec 2014	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	4.3%	6,266,811	$2,127,269,000	—	31 Dec 2014	13F
JENNISON ASSOCIATES LLC	13F	Company	3.8%	5,619,663	$1,907,595,000	—	31 Dec 2014	13F
SANDS CAPITAL MANAGEMENT, LLC	13F	Company	3.4%	4,974,331	$1,688,537,000	—	31 Dec 2014	13F
BlackRock Fund Advisors	13F	Company	3.1%	4,534,594	$1,539,268,000	—	31 Dec 2014	13F
Bank of New York Mellon Corp	13F	Company	2.3%	3,358,853	$1,140,554,000	—	31 Dec 2014	13F
Invesco Ltd.	13F	Company	2.3%	3,342,751	$1,134,697,000	—	31 Dec 2014	13F
NORTHERN TRUST CORP	13F	Company	2.1%	3,145,256	$1,067,657,000	—	31 Dec 2014	13F
WADDELL & REED FINANCIAL INC	13F	Company	2%	2,900,674	$984,633,000	—	31 Dec 2014	13F
AMERIPRISE FINANCIAL INC	13F	Company	1.9%	2,769,523	$940,112,000	—	31 Dec 2014	13F
WELLS FARGO & COMPANY/MN	13F	Company	1.8%	2,711,313	$920,358,000	—	31 Dec 2014	13F
JANUS HENDERSON INVESTORS US LLC	13F	Company	1.8%	2,679,722	$909,683,000	—	31 Dec 2014	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	1.7%	2,535,845	$860,792,000	—	31 Dec 2014	13F
BlackRock Group LTD	13F	Company	1.5%	2,195,060	$745,113,000	—	31 Dec 2014	13F
FRANKLIN RESOURCES INC	13F	Company	1.4%	2,126,484	$721,838,000	—	31 Dec 2014	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	1.4%	2,072,866	$703,634,000	—	31 Dec 2014	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	1.3%	1,910,158	$648,403,000	—	31 Dec 2014	13F
Winslow Capital Management, LLC	13F	Company	1.3%	1,909,997	$648,348,000	—	31 Dec 2014	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.3%	1,861,665	$631,165,000	—	31 Dec 2014	13F
GOLDMAN SACHS GROUP INC	13F	Company	1.2%	1,802,529	$611,869,000	—	31 Dec 2014	13F
Capital World Investors	13F	Company	1.2%	1,710,500	$580,629,000	—	31 Dec 2014	13F
NORGES BANK	13F	Company	1.1%	1,645,805	$558,669,000	—	31 Dec 2014	13F
MARSICO CAPITAL MANAGEMENT LLC	13F	Company	1.1%	1,607,156	$545,549,000	—	31 Dec 2014	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	1.1%	1,576,365	$535,097,000	—	31 Dec 2014	13F
MORGAN STANLEY	13F	Company	1.1%	1,568,496	$532,425,000	—	31 Dec 2014	13F
OppenheimerFunds, Inc.	13F	Company	1%	1,523,240	$517,064,000	—	31 Dec 2014	13F
ORBIMED ADVISORS LLC	13F	Company	1%	1,494,700	$507,376,000	—	31 Dec 2014	13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	0.98%	1,446,949	$491,166,837	—	31 Dec 2014	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.83%	1,224,670	$415,714,000	—	31 Dec 2014	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	0.82%	1,201,289	$407,778,000	—	31 Dec 2014	13F
MANAGED ACCOUNT ADVISORS LLC	13F	Company	0.71%	1,037,556	$352,198,000	—	31 Dec 2014	13F
DEUTSCHE BANK AG\	13F	Company	0.65%	949,917	$322,444,000	—	31 Dec 2014	13F
Legal & General Group Plc	13F	Company	0.64%	940,927	$319,407,000	—	31 Dec 2014	13F
MONTAG & CALDWELL, LLC	13F	Company	0.63%	923,072	$313,337,000	—	31 Dec 2014	13F
DSM CAPITAL PARTNERS LLC	13F	Company	0.61%	898,165	$304,883,000	—	31 Dec 2014	13F
PRUDENTIAL FINANCIAL INC	13F	Company	0.56%	830,694	$281,980,000	—	31 Dec 2014	13F
Allianz Asset Management GmbH	13F	Company	0.56%	829,459	$281,559,000	—	31 Dec 2014	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.5%	741,610	$265,415,000	—	31 Dec 2014	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.53%	781,758	$265,368,000	—	31 Dec 2014	13F
BLACKROCK ADVISORS LLC	13F	Company	0.53%	780,187	$264,835,000	—	31 Dec 2014	13F
BlackRock Finance, Inc.	13F	Company	0.49%	718,748	$243,979,000	—	31 Dec 2014	13F
CREDIT SUISSE AG/	13F	Company	0.49%	714,165	$242,424,000	—	31 Dec 2014	13F
Grantham, Mayo, Van Otterloo & Co. LLC	13F	Company	0.47%	696,116	$236,297,000	—	31 Dec 2014	13F
AJO, LP	13F	Company	0.46%	677,140	$229,855,000	—	31 Dec 2014	13F

Institutional Holders of BIOGEN INC. - Common Stock (BIIB) as of Q1 2015

As of 31 Mar 2015, BIOGEN INC. - Common Stock (BIIB) was held by 961 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 213,693,704 shares. The largest 10 holders included FMR LLC, PRIMECAP MANAGEMENT CO/CA/, VANGUARD GROUP INC, PRICE T ROWE ASSOCIATES INC /MD/, STATE STREET CORP, Clearbridge Investments, LLC, BlackRock Institutional Trust Company, N.A., JPMORGAN CHASE & CO, JENNISON ASSOCIATES LLC, and SANDS CAPITAL MANAGEMENT, LLC. This page lists 962 institutional shareholders reporting positions in this security for the Q1 2015 filing period.

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

Compare Q1 2015 vs Q4 2014 Across Filers

Q4 2014 holders

877

Q1 2015 holders

961

Holder diff

Investor	Q4 2014 Shares	Q1 2015 Shares	Share Diff	Share Chg %	Q4 2014 Value $	Q1 2015 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.