Security key
09062X103
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 144,371,093
- Total 13F value
- $45,633,042,157
- Share change
- -6,623,647
- Put/Call ratio
- 127%
- SEC-reported price per share
- $316.38
- Number of holders
- 1,090
- Value change
- -$2,072,462,238
- Number of buys
- 415
- Number of sells
- 572
- Shares outstanding
- 147,371,459
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2020
Institutions
1,090
Top holders
10
BIIB full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2020
Previous quarter: Q4 2019
BIOGEN INC. SEC filings
BIOGEN INC. company facts
BIOGEN INC. 13D/G history
Broader feeds
Reporting periods
Holder history for CUSIP 09062X103
Recent filing periods:
Ownership snapshot
Top reported holders of BIIB - BIOGEN INC. - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
15/15
Latest evidence
31 Dec 2019
13F
Lead comparable stake: 11%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. leads the comparable SEC ownership view at 11%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock Finance, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock Finance, Inc.
11%
PRIMECAP MANAGEMENT CO/CA/
10%
VANGUARD GROUP INC
9.4%
STATE STREET CORP
5.6%
Clearbridge Investments, LLC
3.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
11%
|
$4,646,388,000
15,658,641 shares
|
— | 31 Dec 2019 |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
Company
|
10%
|
$4,507,175,000
15,189,481 shares
|
— | 31 Dec 2019 |
| VANGUARD GROUP INC |
13F
Company
|
9.4%
|
$4,115,804,000
13,870,538 shares
|
— | 31 Dec 2019 |
| STATE STREET CORP |
13F
Company
|
5.6%
|
$2,442,737,000
8,232,187 shares
|
— | 31 Dec 2019 |
| Clearbridge Investments, LLC |
13F
Company
|
3.5%
|
$1,511,834,000
5,138,098 shares
|
— | 31 Dec 2019 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
3.2%
|
$1,381,503,000
4,655,756 shares
|
— | 31 Dec 2019 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2020
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
1,090
Shares
144,371,093
Rows available
1,090
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2020 vs Q4 2019 Across Filers
Q4 2019 holders
1,090
Q1 2020 holders
1,090
Holder diff
0
| Investor | Q4 2019 Shares | Q1 2020 Shares | Share Diff | Share Chg % | Q4 2019 value | Q1 2020 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend